A continuous traction device with a rope knot cable

Abstract

The application relates to a continuous traction device of a roping cable, which comprises a rotating power system, a rotating shaft and a rotating body rotating with the rotating shaft; the rotating body comprises a rope clamping disc; one end of the rope clamping disc is an axial fixed end, and the other end is an axial movable end which is divided into multiple independent pressing piece units; each pressing piece unit is connected with a pressing block elastic connecting rod; a spring element is arranged in the pressing block elastic connecting rod; the pressing piece unit can automatically axially stretch and shrink after overcoming the pressing force of the spring element; a plane cam is arranged at the tail of each pressing block elastic connecting rod; the convex degree of the plane cam is designed as: from a loosening state to a clamping state to a loosening state from a rope feeding part to a rope discharging part.

Description

Technical Field

[0001] This invention relates to a cable traction device, and more particularly to a continuous cable traction device with knots. Background Technology

[0002] Harvesting kelp and blanching it after harvesting usually require pulling the cut kelp ropes onto a platform. To improve pulling efficiency, the kelp ropes are connected end to end to form a long rope for continuous pulling. Currently, there are three main pulling methods: manual pulling, winch pulling, and friction drum pulling.

[0003] Manually pulling ropes is inefficient and labor-intensive.

[0004] Winch traction enables unmanned towing and is highly efficient. However, because there are knots on the kelp ropes, the ropes on the winch are prone to become disordered and uneven during traction, resulting in a significant reduction in rope capacity. In particular, it is very difficult for the kelp ropes to detach from the winch, and it usually requires manual guidance to complete the task.

[0005] Friction drum traction requires one person to drag the rope to increase friction, which saves effort but not manpower.

[0006] Therefore, how to achieve a function similar to friction drum traction without requiring manual dragging of ropes is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0007] The technical problem that this invention aims to solve is: for long ropes with knots, such as those made of single seaweed ropes strung together end to end, when pulled by a winch, the ropes with knots are easily disordered and uneven, and it is inconvenient to detach the ropes from the winch; friction drum traction requires someone to carry the rope, which increases friction, saving effort but not labor; resulting in low efficiency and high labor intensity of manual traction.

[0008] This invention focuses on a technology that utilizes machine friction to create a traction rope without requiring manual intervention. Simultaneously, it addresses the technical problem of rope knots interfering with frictional forces during the traction rope friction process.

[0009] The present invention employs the following technical means:

[0010] A continuous traction device for knotted cables includes a rotational power system 14, a rotating shaft 1, and a rotating body that rotates with the rotating shaft 1. The rotating body includes a rope clamping disc. One end of the rope clamping disc is an axially fixed end, and the other end is an axially movable end divided into multiple independent pressing units. Each pressing unit is connected to a pressing block elastic connecting rod 7. The pressing block elastic connecting rod 7 is provided with a spring element. The pressing unit can automatically extend and retract axially after overcoming the clamping force of the spring element. Each pressing block elastic connecting rod 7 has a flat cam 11 at its tail. The degree of protrusion of the flat cam 11 is designed to be in a state of relaxation-clamping-relaxation from the rope inlet to the rope outlet.

[0011] Preferably, the rotating body further includes a fixed disk 2 located at the fixed end and a pressing block 5 located at the movable end, which is connected to each pressing unit in a one-to-one manner; the pressing block 5 is connected to a retractable guide structure 6, and the guide structure 6 is connected to an elastic connecting rod 7 of the pressing block.

[0012] Furthermore, the guide structure 6 includes a guide rod and a sleeve.

[0013] Preferably, the planar cam 11 is non-rotatable, the end of the pressure block elastic connecting rod 7 abuts against the planar cam 11, and the pressure block elastic connecting rod 7 rotates under the drive of the rotating shaft 1 and extends and contracts axially relative to the planar cam 11; one end of the pressure block elastic connecting rod 7 is fixed to the pressure block 5, and the other end is equipped with a roller 10, which is limited in the groove on the outer periphery of the cam 11.

[0014] Furthermore, the fixed disk 2 is connected to the rotating shaft 1 and can rotate with the rotating shaft but cannot move axially; the turntable 4 is connected to the rotating shaft 1 and can rotate with the rotating shaft but cannot move axially; several pressure blocks 5 are evenly distributed around the turntable 4, and each pressure block 5 is connected to the turntable 4 through a guide structure 6; the pressure blocks can rotate with the turntable and can also move along its axial direction.

[0015] Furthermore, it also includes a rotating bracket 9, which is connected to the rotating shaft 1 and can rotate with the rotating shaft, but cannot move axially. The circumferentially distributed pressure block spring connecting rods 7 are mounted on the rotating bracket 9 through linear bearings.

[0016] Preferably, the rope inlet section is provided with a pressure roller 15 for changing and guiding the direction of the cable.

[0017] Preferably, the groove contour of the cam 11 is distributed according to the pattern of horizontal-rising-horizontal-falling-horizontal.

[0018] Preferably, the space formed by the fixing plate 2 and the pressing block 5 can accommodate kelp ropes with a diameter of 18-22mm, and the knot diameter on the kelp ropes is 45-55mm.

[0019] The beneficial effects of this invention are as follows:

[0020] 1) Continuous traction can be achieved during the pulling of knotted ropes, improving traction efficiency. No manual intervention is required during the traction process, saving labor costs.

[0021] 2) It solves the problem of rope knot interference during the traction process, and realizes the tightening of both sides of the rope and the traction of the rope by friction. Through the elastic mechanism in the pressure block push rod, it effectively prevents the rope knot from being unable to be dragged or from being stuck in the pressure block groove and being burst.

[0022] 3) The entire device is easy to install, and the rope traction is efficient and convenient;

[0023] 4) Applicable to traction with or without knots, the equipment is compact and easy to promote and apply. Attached Figure Description

[0024] Figure 1 This is a front sectional view of the continuous traction device for knotted cables of the present invention.

[0025] Figure 2 This is a top view of the continuous traction device for knotted cables of the present invention.

[0026] Figure 3 This is a cross-sectional view of the continuous traction device for knotted cables of the present invention located at the rope clamping disc.

[0027] Figure 4 This is a three-dimensional schematic diagram of the continuous traction device for knotted cables of the present invention.

[0028] Figure 5 This is a partial schematic diagram of the pressure block tightening control line.

[0029] Figure 6 yes Figure 5 The left view.

[0030] Figure 7 This is a diagram showing the unfolded control line for the pressure block.

[0031] Figure 8 This is a schematic diagram of the continuous traction device for knotted cables of the present invention, in which the rope clamping disc rotates clockwise to its initial position.

[0032] Figure 9 This is a schematic diagram of the continuous traction device for knotted cables of the present invention, with the rope clamping disc rotated clockwise to its position after rotating 30°.

[0033] Figure 10 This is a schematic diagram of the continuous traction device for knotted cables of the present invention, with the rope clamping disc rotated clockwise to its position after 60° rotation.

[0034] In the diagram, 1. rotating shaft, 2. fixed plate, 3. knotted rope, 4. turntable, 5. pressure block, 6. guide structure, 7. pressure block elastic connecting rod, 8. guide sleeve, 9. rotating frame, 10. roller, 11. flat cam, 12. turntable, 13. frame, 14. power system, 15. rope pressing wheel. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] See Figures 1-10 A continuous traction device for knotted cables includes a rotational power system 14, a rotating shaft 1, and a rotating body that rotates with the rotating shaft 1. The rotating body includes a rope clamping disc. One end of the rope clamping disc is an axially fixed end, and the other end is an axially movable end divided into multiple independent pressing units. Each pressing unit is connected to a pressing block elastic connecting rod 7. The pressing block elastic connecting rod 7 is provided with a spring element. The pressing unit can automatically extend and retract axially after overcoming the clamping force of the spring element. Each pressing block elastic connecting rod 7 has a flat cam 11 at its tail. The degree of protrusion of the flat cam 11 is designed to be in a state of relaxation-clamping-relaxation from the rope inlet to the rope outlet.

[0037] See Figure 1 The rotating body also includes a fixed plate 2 located at the fixed end and a pressing block 5 located at the movable end, which is connected to each pressing unit in a one-to-one manner; the pressing block 5 is connected to a retractable guide structure 6, and the guide structure 6 is connected to the pressing block elastic connecting rod 7.

[0038] The tablet compression unit is actually connected to the compression block. In the attached diagram, it is shown as the same component as the compression block (integrated), but in reality, it does not necessarily have to be the same component; it can also be fixedly connected to the compression block. In fact, the "compression block" is not necessary, but the "tablet compression unit" is essential because it needs to perform the function of clamping the rope.

[0039] See Figure 1 The guide structure 6 includes a guide rod and a sleeve.

[0040] See Figure 1 The planar cam 11 is non-rotatable. The end of the pressure block elastic connecting rod 7 abuts against the planar cam 11. When the pressure block elastic connecting rod 7 is rotated under the drive of the rotating shaft 1, it extends and retracts axially relative to the planar cam 11. One end of the pressure block elastic connecting rod 7 is fixed to the pressure block 5, and the other end is equipped with a roller 10. The roller 10 is limited in the groove on the outer periphery of the cam 11.

[0041] See Figure 1The fixed disk 2 is connected to the rotating shaft 1 and can rotate with the rotating shaft but cannot move axially; the turntable 4 is connected to the rotating shaft 1 and can rotate with the rotating shaft but cannot move axially; several pressure blocks 5 are evenly distributed around the turntable 4, and each pressure block 5 is connected to the turntable 4 through a guide structure 6; the pressure blocks can rotate with the turntable and can also move along its axial direction.

[0042] See Figure 1 The rotating bracket 9 is connected to the rotating shaft 1 and can rotate with the rotating shaft, but cannot move axially. The circumferentially distributed pressure block spring connecting rods 7 are mounted on the rotating bracket 9 through linear bearings.

[0043] See Figure 2 and 3 The rope inlet section is equipped with a pressure roller 15 for changing and guiding the direction of the cable.

[0044] See Figure 7 The cam 11 groove contour lines are distributed in a horizontal-rising-horizontal-falling-horizontal pattern.

[0045] See Figure 1-3 The space formed by the fixing plate 2 and the pressing block 5 can accommodate kelp rope with a diameter of 18-22mm, and the knot diameter on the kelp rope is 45-55mm.

[0046] Here is a specific example:

[0047] The rope is a long cable formed by connecting the two ends of a seaweed rope, with a diameter of 20mm. One end of the rope is placed into the fixed plate and the pressure block through the pressure roller 15, with a distance of 50mm between them. The power system 14 drives the rotating shaft 1 to rotate via a coupling. The rotating shaft 1 drives the fixed plate 2 and the turntable 4 to rotate, and the pressure block 5, which is connected to it via the guide structure 6, rotates along with it. The fixed plate is axially fixed and does not move. One end of the pressure block elastic connecting rod 7 contacts the groove of the cam 11 through the roller 10, and the other end is fixed to the pressure block 5. The pressure block elastic connecting rod 7 is connected to a linear bearing on the circumference of the turntable 12 and can move according to the change of the cam groove. When the roller contacts the lower edge of the cam groove, the distance between the pressure block and the fixed plate is 50mm, which is just enough to insert the rope. As the fixed plate and pressure block rotate to the rising edge of the cam groove, they push the pressure block towards the fixed plate, making the groove spacing 15mm, thus tightening the rope. Through friction, this section of rope rotates along the circumference at a certain angle, at which point the roller contacts the falling edge of the cam groove, and the groove spacing becomes 50mm, releasing this section of rope. This process repeats, achieving continuous traction of the rope. If there is a knot in the rope, the knot contacts the pressure block groove. Because the elastic connecting rod 7 of the pressure block has an elastic buffer device, it can absorb the space volume of the knot that is larger than the rope diameter, causing the spring to compress. The pressure block and the fixed plate act simultaneously, and through friction, the knot rotates at a certain angle and then separates, achieving the purpose of continuous traction of the rope.

[0048] The following is based on Figure 8-10Taking this as an example, let's explain the cable feeding process in detail:

[0049] First, see Figure 8 The initial position is clockwise, the first Blocks 1-4 are in the loosened state. Block 5 represents the transition from loose to tight. Blocks 6-9 are in the tight state. Block 10 represents the transition from tight to loose.

[0050] Note: Fully filled state of the pressure block – the pressure block is pressed tightly; grid-filled state of the pressure block – the transition state from loose to tight or from tight to loose; unfilled state of the pressure block – the pressure block is completely loose.

[0051] Second, see Figure 9 After rotating 30° clockwise from the initial position, pressure blocks ⑩ through ③ are in a loosened state. Block ④ represents the transition from loose to tight. Pressure blocks ⑤ through ⑧ are in a tight state. Block ⑨ represents the transition from tight to loose. At this point, rope segments 5 through 8, under the pressure of the pressure blocks, rotate together around the axis by 30°. Rope segment 9, originally in a tight state with pressure block ⑨, transitions from tight to loose; rope segment 10, transitions from tight with pressure block ⑩, becomes loose; rope segment ④, originally in a loosened state with pressure block ④, transitions from loose to tight; and rope segment 5, transitions from tight with pressure block ⑤, becomes tight. Therefore, the rope as a whole moves 30° to the right.

[0052] Third, see Figure 10 After rotating 60° clockwise from the previous position, blocks ⑨ through ② are in a loosened state. Block ③ represents the transition from loose to tight. Blocks ④ through ⑦ are in a tight state. Block ⑧ represents the transition from tight to loose. At this point, rope segments 4 through 7, under the pressure of the blocks, rotate together around the axis by 30°. Rope segment 8, originally in a tight state with block ⑧, transitions from tight to loose; rope segment 9, transitions from tight block ⑨ to loose; rope segment 3, originally in a loose state with block ③, transitions from loose to tight; and rope segment 4, transitions from tight block ④ to tight. Therefore, the rope as a whole moves another 30° arc length to the right, a total of 60° arc length to the right from the initial state. This cycle repeats, with the rope continuously being tightened, pulled, and released, all without human intervention.

[0053] The above are preferred embodiments of the present invention. Those skilled in the art can make changes or improvements based on these embodiments. Without departing from the overall concept of the present invention, such changes or improvements should fall within the scope of protection claimed by the present invention.

Claims

1. A continuous traction device for a knotted cable, characterized in that: It includes a rotational power system (14), a rotating shaft (1), and a rotating body that rotates with the rotating shaft (1); The rotating body includes a rope clamping disc; One end of the rope clamping disc is an axially fixed end, and the other end is an axially movable end divided into multiple independent pressing units. Each pressing unit is connected to a pressing block elastic connecting rod (7). The pressing block elastic connecting rod (7) is equipped with a spring element. The pressing unit can automatically extend and retract axially after overcoming the clamping force of the spring element. Each pressure block elastic connecting rod (7) has a flat cam (11) at its tail. The convexity of the flat cam (11) is designed to be in a state of relaxation-clamping-relaxation from the rope inlet to the rope outlet. The rotating body also includes a fixed plate (2) located at the fixed end and a pressing block (5) located at the movable end that is connected to each pressing unit in a corresponding manner; the pressing block (5) is connected to a retractable guide structure (6), and the guide structure (6) is connected to an elastic connecting rod (7) of the pressing block. The cable is a seaweed cable.

2. The continuous traction device with knotted cable as described in claim 1, characterized in that: The guide structure (6) includes a guide rod and a sleeve.

3. The continuous traction device with knotted cable as described in claim 1, characterized in that: The planar cam (11) is non-rotatable, and the end of the pressure block elastic connecting rod (7) abuts against the planar cam (11). When the pressure block elastic connecting rod (7) rotates under the drive of the rotating shaft (1), it extends and retracts axially relative to the planar cam (11). One end of the elastic connecting rod (7) of the pressure block is fixed to the pressure block (5), and the other end is equipped with a roller (10). The roller (10) is limited in the groove on the outer periphery of the planar cam (11).

4. The continuous traction device for knotted cables as described in claim 1, characterized in that: The fixed disk (2) is connected to the rotating shaft (1) and can rotate with the rotating shaft but cannot move axially; the turntable (4) is connected to the rotating shaft (1) and can rotate with the rotating shaft but cannot move axially; several pressure blocks (5) are evenly distributed around the turntable (4), and each pressure block (5) is connected to the turntable (4) through a guide structure (6); the pressure blocks can rotate with the turntable and can also move along its axial direction.

5. The continuous traction device for knotted cables as described in claim 3, characterized in that: It also includes a rotating bracket (9), which is connected to the rotating shaft (1) and can rotate with the rotating shaft, but cannot move axially. The circumferentially distributed pressure block elastic connecting rods (7) are installed on the rotating bracket (9) through linear bearings.

6. The continuous traction device for knotted cables as described in claim 1, characterized in that: The rope inlet section is equipped with a pressure roller (15) for changing and guiding the direction of the cable.

7. The continuous traction device for knotted cables as described in claim 1, characterized in that: The contour lines of the planar cam (11) groove are distributed in a horizontal-rising-horizontal-falling-horizontal pattern.

8. The continuous traction device for knotted cables as described in claim 1, characterized in that: The space formed by the fixing plate (2) and the pressing block (5) can accommodate kelp ropes with a diameter of 18~22mm, and the knot diameter on the kelp rope is 45-55mm.

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