A force measuring device for cable laying and a friction winch having the same

Abstract

The utility model relates to the technical field of friction winches, and in particular to a force measuring device for cable laying and a friction winch having the same, comprising a detection frame and a guide seat longitudinally slidably arranged in a mounting seat, the mounting seat being fixed on a base; one side of the guide seat being longitudinally provided with two vertical shafts; the interior of the detection frame is hollow and rotatably provided with three pulleys distributed in an isosceles triangle, the pulleys at the top corners being rotatably arranged on a force measuring shaft, the force measuring shaft being fixed on the detection frame; a connecting rod is hinged between the bottom of the detection frame and the bottom of the guide seat. The force measuring device is installed at one end of the cable outlet of the friction winch, and can monitor the force condition of the cable in real time through the force measuring shaft and three pulleys to ensure the overall safe operation.

Description

Technical Field

[0001] The utility model relates to the technical field of friction winches, in particular to a force measuring device for cable laying and a friction winch with the same. Background Art

[0002] Existing friction winches, such as the friction winch provided by Chinese invention patent CN106698224B, include two drums with parallel axes, one end of the drum is provided with a gear ring, and the two gear rings are meshed and driven by the output gear driven by the motor, thereby driving the two drums to rotate. The friction winch is usually used for the cable winch on the cable-laying ship to retract and release the cable. Usually, after the cable is released from the cable winch, it will be wound around the friction winch for several turns and then connected to the burying plow. However, during the process of laying optical cables on the seabed by the burying plow, it will be subjected to huge resistance. Therefore, the force acting on the cable may exceed the force limit of the cable and cause a safety accident. For this reason, it is urgent to design a detection device that can monitor the force condition of the cable in real time to ensure the safe operation between the friction winch and the burying plow. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects and shortcomings in the prior art. To this end, the utility model provides a force measuring device for cable laying and a friction winch with the same, which can detect the stress condition of the cable in real time, ensure the stable operation of the laying plow, and avoid safety accidents.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a force measuring device for cable laying, comprising a detection frame and a guide seat longitudinally slidably arranged in a mounting seat, one side of the guide seat is provided with two vertical axes in the longitudinal direction; the interior of the detection frame is hollow and rotatably provided with three pulleys distributed in an isosceles triangle, the pulleys located at the top angles are rotatably arranged on a force measuring shaft, and the force measuring shaft is fixed on the detection frame; a connecting rod is hinged between the bottom of the detection frame and the bottom of the guide seat; the detection frame is configured so that the cable passes through between the two vertical axes and is sequentially wrapped and pressed between the inner sides of the three pulleys; the force measuring shaft is used to detect the radial force applied by the cable.

[0005] Furthermore, the mounting seat includes two symmetrically arranged columns, and a guide shaft is provided between the upper and lower parts of the two columns; the guide seat is slidably sleeved on the two guide shafts.

[0006] Furthermore, the guide seat comprises a sliding seat sleeved on the guide shaft, and a fixing plate is provided on the sliding seat; and the vertical shaft is arranged between the two fixing plates.

[0007] Furthermore, two vertical plates are integrally provided between the two sliding seats, two longitudinal limit shafts are vertically provided between the two vertical plates, a limit cylinder is rotatably sleeved on the limit shaft, and threaded holes are provided on the limit shaft at both ends of the limit cylinder, and the threaded holes are used to bolt limit screws.

[0008] Furthermore, the detection frame includes two parallel mounting plates, and a plurality of support columns are fixedly arranged between the two mounting plates.

[0009] Furthermore, the connecting rod includes an adjusting rod and two universal blocks, and U-shaped openings are symmetrically provided in the middle of both ends of the adjusting rod, and the two U-shaped openings are perpendicular to each other; the universal block includes two vertical and integrally arranged connecting plates; one end of the universal block is embedded in the corresponding U-shaped opening and hinged, and the other end is hinged to the corresponding detection frame and guide seat.

[0010] Furthermore, a connecting seat is provided at the bottom of the guide seat, and the connecting seat is hinged to the corresponding universal block.

[0011] The utility model also provides a friction winch, comprising any one of the force measuring devices described above.

[0012] Furthermore, the friction winch includes a base, on which two longitudinal drums are arranged in the transverse direction, a gear ring is arranged at one end of the drum, and an output gear driven to rotate by a hydraulic motor and matched and meshed is arranged between the two gear rings; the gear ring and the output gear are both placed in a protective seat; the hydraulic motor and the protective seat are both arranged on the base; the mounting seat on the force measuring device is fixedly arranged at the end of the base in the direction of the cable outlet.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the vertical axis on the guide seat can reciprocate driven by the cable, and the connecting rod can ensure that the cable is always wrapped and pressed between the inner sides of the three pulleys in the detection frame, ensuring that the pulley wrap angle of the cable on the force measuring axis is a fixed value, which is convenient for the detection value of the force measuring axis to be converted into the force value of the cable in real time, completing real-time monitoring of the cable force condition, and ensuring overall safe operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention provides a schematic structural diagram of a force measuring device.

[0015] Figure 2 for Figure 1 main view.

[0016] Figure 3 for Figure 2 Right view of .

[0017] Figure 4The utility model provides a friction winch.

[0018] Among them: 1. force measuring device; 2. base; 3. reel; 4. hydraulic motor; 5. protective seat; 11. column; 12. guide shaft; 13. sliding seat; 14. fixed plate; 15. mounting plate; 16. pulley; 17. force measuring shaft; 18. connecting rod; 19. connecting seat; 31. gear ring; 131. limit shaft; 132. limit cylinder; 133. vertical plate; 141. vertical shaft; 181. universal block; 182. adjusting rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention. Example

[0021] See also Figures 1 to 4 The utility model provides a friction winch, including a base 2, two longitudinal drums 3 are arranged on the base 2 in the horizontal direction, a gear ring 31 is arranged at one end of the drum 3, a hydraulic motor 4 is arranged between the two gear rings 31 to drive the rotation and match the output gear meshing, the gear ring 31 and the output gear are both placed in a protective seat 5; the hydraulic motor 4 and the protective seat 5 are both arranged on the base 2; a force measuring device 1 is arranged at the end of the base 2 in the direction of the cable outlet.

[0022] Among them, the force measuring device 1 includes a detection frame and a guide seat longitudinally slidably arranged in the mounting seat, and the mounting seat is fixed on the base 2; two vertical shafts 141 are longitudinally arranged on one side of the guide seat; the interior of the detection frame is hollow and rotatably provided with three pulleys 16 distributed in an isosceles triangle, and the pulley 16 located at the top corner is rotatably set on the force measuring shaft 17, and the force measuring shaft 17 is fixed on the detection frame; a connecting rod 18 is hinged between the bottom of the detection frame and the bottom of the guide seat.

[0023] The force measuring shaft 17 here is a purchased part, and the SM23 series pin shaft sensor produced by Sun Moon Technology Development Group can be selected.

[0024] When in use, the cable passes between the two vertical shafts 141 and is wrapped and tightened between the inner sides of the three pulleys 16 in sequence, so that the state of the cable in the detection frame remains unchanged. The cable applies radial force to the force measuring shaft 17 and the wrap angle with the corresponding pulley 16 is a fixed value. Therefore, the radial force detected by the force measuring shaft 17 can be converted into the real-time force value of the cable, avoiding safety accidents.

[0025] As an embodiment of the utility model, the mounting seat includes two symmetrically arranged columns 11 , and a guide shaft 12 is provided between the upper and lower parts of the two columns 11 ; the guide seat is slidably sleeved on the two guide shafts 12 .

[0026] The guide seat here may include a sliding seat 13 sleeved on the guide shaft 12, and a fixing plate 14 is provided on the sliding seat 13; the vertical shaft 141 is arranged between the two fixing plates 14. Accordingly, two vertical plates 133 may be integrally arranged between the two sliding seats 13, and two longitudinal limiting shafts 131 are vertically arranged between the two vertical plates 133, and a limiting cylinder 132 is rotatably sleeved on the limiting shaft 131, and threaded holes are provided on the limiting shaft 131 at both ends of the limiting cylinder 132, and the threaded holes are used to bolt the limiting screws.

[0027] As an embodiment of the present invention, the detection frame includes two parallel mounting plates 15 , and a plurality of support columns are fixedly arranged between the two mounting plates 15 .

[0028] As an embodiment of the utility model, the connecting rod 18 includes an adjusting rod 182 and two universal blocks 181. U-shaped openings are symmetrically provided in the middle of both ends of the adjusting rod 182, and the two U-shaped openings are perpendicular to each other; the universal block 181 includes two vertical and integrally arranged connecting plates; one end of the universal block 181 is embedded in the corresponding U-shaped opening and hinged, and the other end is hinged to the corresponding detection frame and guide seat.

[0029] Specifically, a connecting seat 19 is provided at the bottom of the guide seat, and the connecting seat 19 is hinged to the corresponding universal block 181 .

[0030] When in use, as the drum 3 rotates, the cable reciprocates radially on the drum 3, and the cable pushes the vertical shaft 141, thereby driving the guide seat to reciprocate radially on the mounting seat. The connecting rod 18 can adjust the state of the detection frame in real time according to the operation of the burying plow, ensuring that the cable is always wrapped and pressed between the inner sides of the three pulleys 16, which is convenient for detecting the accuracy of the value. The limit cylinder 132 can prevent the cable from moving up and down, which is conducive to the cable pulling the burying plow steadily.

[0031] The utility model can be summarized in other specific forms that do not violate the spirit or main features of the utility model. Therefore, no matter from which point of view, the above embodiments of the utility model can only be regarded as an explanation of the utility model and cannot limit the utility model. The claims indicate the scope of the utility model, while the above description does not indicate the scope of the utility model. Therefore, any changes within the meaning and scope equivalent to the claims of the utility model should be considered to be included in the scope of the claims of the utility model.

Claims

1. A force measuring device for cable laying, characterized in that: The invention comprises a detection frame and a guide seat which is longitudinally slidably arranged in a mounting seat, wherein one side of the guide seat is longitudinally provided with two vertical shafts (141); the interior of the detection frame is hollow and is rotatably provided with three pulleys (16) distributed in an isosceles triangle shape, wherein the pulleys (16) located at the top corners are rotatably arranged on a force measuring shaft (17), and the force measuring shaft (17) is fixed on the detection frame; a connecting rod (18) is hingedly connected between the bottom of the detection frame and the bottom of the guide seat; the detection frame is configured such that a cable passes through between the two vertical shafts (141) and is sequentially wrapped and pressed between the inner sides of the three pulleys (16); and the force measuring shaft (17) is used to detect the radial force applied by the cable.

2. The force measuring device for cable laying according to claim 1, characterized in that: The mounting seat comprises two symmetrically arranged upright posts (11), and a guide shaft (12) is provided between the upper and lower parts of the two upright posts (11); the guide seat is slidably sleeved on the two guide shafts (12).

3. The force measuring device for cable laying according to claim 2, characterized in that: The guide seat comprises a sliding seat (13) sleeved on the guide shaft (12), and a fixing plate (14) is provided on the sliding seat (13); the vertical shaft (141) is arranged between the two fixing plates (14).

4. The force measuring device for cable laying according to claim 3, characterized in that: Two vertical plates (133) are integrally provided between the two sliding seats (13), two longitudinal limit shafts (131) are vertically provided between the two vertical plates (133), a limit cylinder (132) is rotatably sleeved on the limit shaft (131), and threaded holes are provided on the limit shaft (131) at both ends of the limit cylinder (132), and the threaded holes are used for bolting limit screws.

5. The force measuring device for cable laying according to claim 1, characterized in that: The detection frame comprises two parallel mounting plates (15), and a plurality of support columns are fixedly arranged between the two mounting plates (15).

6. The force measuring device for cable laying according to claim 5, characterized in that: The connecting rod (18) comprises an adjusting rod (182) and two universal blocks (181); U-shaped openings are symmetrically provided in the middle of both ends of the adjusting rod (182); the two U-shaped openings are perpendicular to each other; the universal block (181) comprises two vertical and integrally arranged connecting plates; one end of the universal block (181) is embedded in the corresponding U-shaped opening and hinged, and the other end is hinged to the corresponding detection frame and guide seat.

7. The force measuring device for cable laying according to claim 6, characterized in that: A connecting seat (19) is provided at the bottom of the guide seat, and the connecting seat (19) is hingedly connected to the corresponding universal block (181).

8. A friction winch, characterized in that: A force measuring device (1) comprising any one of claims 1 to 7.

9. The friction winch according to claim 8 comprises a base (2), two longitudinal drums (3) are arranged on the base (2) in a transverse direction, a gear ring (31) is arranged at one end of the drum (3), and an output gear driven to rotate and mesh with each other by a hydraulic motor (4) is arranged between the two gear rings (31), characterized in that: The gear ring (31) and the output gear are both placed in the protective seat (5); the hydraulic motor (4) and the protective seat (5) are both arranged on the base (2); and the mounting seat on the force measuring device (1) is fixed to the end of the base (2) located in the direction of the cable outlet.

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