Cable threading device with high trafficability

Abstract

The utility model provides a cable threading device with strong trafficability, which comprises at least two walking units, at least one cable threading device and at least one cable threading device, the walking wheel mechanism is installed on the support in a swinging mode, the adjusting disc is installed on the support in a sliding mode and can drive the walking wheel mechanism to be opened and closed, and the lead screw is installed on the support in a rotating mode and can drive the adjusting disc to move in the axial direction. Each universal joint is connected between the end parts of the screw rods of two adjacent walking units; the adjusting motor is mounted at the tail part of the bracket of the last section of walking unit, and a main shaft of the adjusting motor is connected with the end part of the lead screw of the section of walking unit; and the tail hook is arranged at the tail part of the bracket of the last section of walking unit. The walking units are connected through the universal joints, self-adaptive steering of the walking units in the bent sections is achieved, the walking requirements in straight pipes and bent pipes are met, and high adaptability is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of cable installation technology, specifically relating to a cable puller with strong throughput. Background Technology

[0002] Chinese patent application number 202222031926.X discloses a highly adaptable intelligent thread-threading robot, suitable for movement in various pipe diameters and complex pipe terrains, thus expanding the robot's applicability. However, this patent still has some significant drawbacks:

[0003] First, this type of robot is only suitable for threading straight pipes. It cannot be used when encountering bent pipes, which has certain limitations.

[0004] Second, the auxiliary support legs are not powered, resulting in low overall traction and an inability to drag multiple cables at once; moreover, the support legs rely on elastic adaptive components for adjustment, which causes slippage between the wheel surface and the tube wall.

[0005] In summary, existing thread-threading robots have poor maneuverability and certain limitations, requiring further improvement. Summary of the Invention

[0006] The purpose of this invention is to provide a cable puller with strong passability, which can meet the requirements of both straight and curved pipes.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cable puller with high throughput, comprising:

[0008] The walking unit is provided in at least two, each having a bracket, a walking wheel mechanism swingably mounted on the bracket, an adjustment disc slidably mounted on the bracket and capable of driving the walking wheel mechanism to open and close, and a lead screw rotatably mounted on the bracket and capable of driving the adjustment disc to move axially.

[0009] Universal joint, which connects the ends of the lead screws of two adjacent traveling units;

[0010] An adjustment motor is installed at the tail of the support of the last traveling unit, and its main shaft is connected to the end of the lead screw of the traveling unit.

[0011] Tail hook, which is installed at the tail of the support of the last traveling unit.

[0012] Furthermore, it also includes a flexible connector that connects the supports of two adjacent walking units.

[0013] Furthermore, the flexible connector is a rubber connecting shaft with a spring sleeved on its outer periphery.

[0014] Furthermore, the bracket includes a front fixed plate, a rear fixed plate, and a connecting optical shaft connecting the front fixed plate and the rear fixed plate; the adjusting plate is slidably mounted on the connecting optical shaft via a linear bearing.

[0015] Furthermore, the walking wheel mechanism includes a swing arm, a walking wheel, and a walking motor; the swing arm is mounted on the front fixed plate, the walking wheel is mounted on the end of the swing arm, and the walking motor is mounted on the swing arm and drives the walking wheel through a gear mechanism.

[0016] Furthermore, the swing arm is provided with a sliding groove, and the adjusting disc has a sliding shaft, which is slidably disposed in the sliding groove.

[0017] Furthermore, it also includes a camera, which is mounted on the front of the support of the foremost walking unit.

[0018] Furthermore, the walking unit has three walking wheel mechanisms, which are evenly distributed along the circumference.

[0019] Furthermore, when two adjacent traveling units are connected in a mirror manner, the threads of their lead screws rotate in opposite directions.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1) The walking unit in this utility model is connected by a universal joint, which enables the walking unit to adaptively turn in the curved section, meets the walking requirements in straight pipes and curved pipes, and has high adaptability.

[0022] 2) The walking unit in this utility model achieves synchronous adjustment of all walking wheel mechanisms through an adjustment motor, and can prevent the walking wheels from slipping on the pipe wall.

[0023] 3) Multiple walking units in this utility model can be connected in series as needed, and all walking wheel mechanisms are self-powered, which greatly improves traction and can directly pull multiple cables, thus improving cable threading efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural view of a preferred embodiment of the present invention;

[0025] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0026] Figure 3 for Figure 1 The structural side view of the embodiment shown;

[0027] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0028] Figure 5 for Figure 1 Front view of the structure of the embodiment shown;

[0029] Figure 6 for Figure 1 The illustrated embodiment is a simplified diagram of movement within a curved pipe;

[0030] Figure 7 for Figure 1 The illustrated embodiment is a simplified diagram of a direct threading method.

[0031] Figure 8 for Figure 1 The illustrated embodiment is a simplified diagram of an indirect threading method.

[0032] Attached Figure

[0033] 1. Walking unit; 2. Universal joint; 3. Adjusting motor; 4. Tail hook; 5. Front fixed plate; 6. Rear fixed plate; 7. Connecting optical shaft; 8. Lead screw; 9. Walking wheel mechanism; 10. Swing arm; 11. Walking wheel; 12. Walking motor; 13. Gear mechanism; 14. Hinge seat; 15. Pivot; 16. Driving gear; 17. Driven gear; 18. Adjusting plate; 19. Linear bearing; 20. Lead screw nut; 21. Sliding shaft seat; 22. Sliding groove; 23. Sliding shaft; 24. Flexible connector; 25. Pipe; 26. Spring; 27. Camera; 28. Clamp; 29. ​​Cable. Detailed Implementation

[0034] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the protection scope of this utility model.

[0035] like Figures 1 to 5 As shown, this embodiment discloses a cable threader with strong passability, including a walking unit 1, a universal joint 2, an adjusting motor 3, and a tail hook 4.

[0036] There are two walking units 1, arranged in series. Adjacent walking units 1 can be connected in a mirror image or in an array. In this example, the two walking units 1 are connected in a mirror image configuration. This can also be understood as follows: when there is an odd number of walking units 1, an array connection is preferable; when there is an even number, a mirror image connection is preferable. The number of walking units 1 determines the traction force; the more units, the greater the traction force. Therefore, a specific number of walking units 1 can be selected according to specific needs.

[0037] The walking unit 1 includes a bracket, a walking wheel mechanism 9, an adjusting disc 18, and a lead screw 8. Specifically, the bracket includes a front fixed disc 5, a rear fixed disc 6, and a connecting optical shaft 7. Both the front fixed disc 5 and the rear fixed disc 6 are provided with corresponding fixing holes and a center hole. Three fixing holes are evenly distributed along the circumference. The two ends of the connecting optical shaft 7 are respectively fixed in the corresponding fixing holes, thereby connecting the front fixed disc 5 and the rear fixed disc 6. Bearings are installed in the center holes of the front fixed disc 5 and the rear fixed disc 6, and the two ends of the lead screw 8 are installed in the bearings, thereby enabling the rotational installation of the lead screw 8.

[0038] The traveling wheel mechanism 9 includes a swing arm 10, traveling wheels 11, and a traveling motor 12. The swing arm 10 is mounted on the front fixed plate 5, the traveling wheels 11 are mounted on the end of the swing arm 10, and the traveling motor 12 is mounted on the swing arm 10 and drives the traveling wheels 11 through a gear mechanism 13. Three circumferentially distributed hinge seats 14 are provided on the outer periphery of the rear fixed plate 6. The rear end of the swing arm 10 is mounted on the hinge seats 14 via a pivot 15, allowing the swing arm 10 to swing open and close relative to the central axis. Traveling wheels 11 are symmetrically mounted on both sides of the front end of the swing arm 10, and the traveling motor 12 is mounted on their outer sides. A driving gear is mounted on the inner side of the traveling wheels 11. The traveling motor 12 is a dual-headed reduction motor, with driving gears 16 mounted on its two main shafts. The driving gears 16 mesh with the driven gears 17 on the corresponding sides. In other words, each traveling wheel mechanism 9 is self-powered, thus providing a large traction force.

[0039] The adjusting plate 18 has a through hole for the connecting optical shaft 7 to pass through and a central hole for the lead screw 8 to pass through. A linear bearing 19 is installed in the through hole, and the adjusting plate 18 slides on the corresponding connecting optical shaft 7 through the sliding connection of the linear bearing 19. A nut for the lead screw 8 is installed in the central hole of the adjusting plate 18, and the nut for the lead screw 8 cooperates with the lead screw 8 to achieve axial drive of the adjusting plate 18. Three circumferentially distributed sliding shaft seats 21 are provided on the outer periphery of the adjusting plate 18, and sliding shafts 23 are installed on the sliding shaft seats 21. The swing arm 10 is provided with a sliding groove 22, and the sliding shaft 23 is slidably disposed in the sliding groove 22.

[0040] In other words, when the adjusting disc 18 moves back and forth, the sliding shaft can drive the swing arm 10 to swing through the sliding groove 22. When the adjusting disc 18 moves forward relative to the rear fixed disc 6, the angle between the swing arm 10 and the central axis becomes smaller, thus adapting to the travel requirements of the small-diameter pipe 25. When the adjusting disc 18 moves backward relative to the rear fixed disc 6, the angle between the swing arm 10 and the central axis becomes larger, thus adapting to the travel requirements of the large-diameter pipe 25.

[0041] The front end of the lead screw 8 extends outward through the center hole of the front fixed plate 5, and the shaft head of the universal joint 2 is connected to the front ends of the lead screws 8 of the two adjacent traveling units 1 respectively. In this way, a flexible connection is formed between the two traveling units 1, meaning that the central axes of the front and rear traveling units 1 can be coaxial or at a certain angle, thereby achieving turning within the pipe 25, such as... Figure 6 As shown.

[0042] The adjusting motor 3 is mounted on the rear fixed plate 6 of the last traveling unit 1, and its main shaft is connected to the rear end of the lead screw of the traveling unit 1. Since the lead screws 8 of the two traveling units 1 are connected by a universal joint 2, the adjusting motor 3 can drive the two adjusting plates 18 to move synchronously after starting, thereby realizing the synchronous opening and closing of the swing arm 10.

[0043] It should be noted that since the two traveling units 1 are connected only by a universal joint 2, in order to improve their torsional resistance and enable the adjusting disc 18 to move synchronously, this example, as a preferred embodiment, also includes a flexible connector 24. The flexible connector 24 is connected between the supports of the two adjacent traveling units 1. Since the traveling units 1 in this example are connected in a mirror manner, the flexible connector 24 is connected between the two front fixed discs 5. The flexible connector 24 can both satisfy the steering adjustment of the traveling units 1 and provide a certain degree of torsional resistance. Specifically, the flexible connector 24 is a rubber connecting shaft, and a spring 26 is sleeved on its outer periphery. Figure 4 As shown, the end of the rubber connecting shaft passes through the through hole on the front fixed plate 5 and is fixed to the front fixed plate 5 by screws and washers. The function of the spring 26 is to prevent the end of the rubber connecting shaft from breaking and to extend its service life.

[0044] The rear mounting plate 6 of the last traveling unit 1 is equipped with a tail hook 4, which is used to connect the cable 29 to be pulled.

[0045] In order to observe the movement within the pipe 25 in real time, this example also includes a camera 27, which is mounted on the rear mounting plate 6 of the foremost walking unit 1.

[0046] It should be noted that in this utility model, the walking motor 12, the adjusting motor 3, and the camera 27 are all electrical components, which are continuously powered by a power supply line. That is to say, the power supply line and the cable 29 to be pulled are pulled together into the pipe 25. Since the above components are all existing components and the connection methods are all existing technologies, they will not be described in detail.

[0047] When threading the cables, determine the threading method based on the number of cables (29). One method is direct threading, such as… Figure 7 As shown, this method is suitable for situations where the number of cables 29 is small. After fixing the end of the cable 29 with the clamp 28, connect it to the tail hook 4, and then put the cable threading device into the pipe 25. After the cable threading device walks out of the other end of the pipe 25, release the clamp 28 to fix it, thereby completing the threading of the cable 29.

[0048] Another type is indirect threading, such as... Figure 8 As shown, this method is suitable for situations where there are a large number of cables 29. Connect the traction rope to the tail hook 4, and then use the cable threading device to first pass the traction rope through the entire pipe 25. Then, after unhooking the head of the traction rope from the tail hook 4, connect it to the winch. Then, connect the tail of the traction rope to the clamp 28 at the end of the cable 29. Use the traction force of the winch to pass all the cables 29 through the pipe 25, thereby completing the cable threading.

[0049] It should be noted that the method of fixing the cable with clamps is existing technology, and the connection between the clamps and the tail hook is also existing technology, so it will not be elaborated on.

[0050] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0051] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0052] In the description of this utility model, unless otherwise stated, "multiple" means two or more. It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0053] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cable puller with high throughput, characterized in that: include: Walking unit (1), the walking unit (1) is provided with at least two, which has a bracket, a walking wheel mechanism (9) swinging on the bracket, an adjustment plate (18) sliding on the bracket and capable of driving the walking wheel mechanism (9) to open and close, and a lead screw (8) rotatably mounted on the bracket and capable of driving the adjustment plate (18) to move axially. Universal joint (2) mechanism, the universal joint (2) mechanism is connected between the ends of the lead screw (8) of two adjacent walking units (1); Adjustment motor (3), the adjustment motor (3) is installed at the tail of the bracket of the last walking unit (1), and its main shaft is connected to the end of the lead screw of the walking unit (1); Tail hook (4), which is installed at the tail of the support of the last walking unit (1).

2. The cable puller with high throughput according to claim 1, characterized in that: It also includes a flexible connector (24) that connects between the supports of two adjacent walking units (1).

3. A cable puller with high throughput according to claim 2, characterized in that: The flexible connector (24) is a rubber connecting shaft, and a spring (26) is sleeved on its outer periphery.

4. A cable puller with high throughput according to claim 1, characterized in that: The bracket includes a front fixed plate (5), a rear fixed plate (6), and a connecting optical shaft (7) connecting the front fixed plate (5) and the rear fixed plate (6); the adjusting plate (18) is slidably mounted on the connecting optical shaft (7) via a linear bearing (19).

5. A cable puller with high throughput according to claim 4, characterized in that: The walking wheel mechanism (9) includes a swing arm (10), a walking wheel (11) and a walking motor (12); the swing arm (10) is mounted on the front fixed plate (5), the walking wheel (11) is mounted on the end of the swing arm (10), and the walking motor (12) is mounted on the swing arm (10) and drives the walking wheel (11) through a gear mechanism (13).

6. A cable puller with high throughput according to claim 5, characterized in that: The swing arm (10) is provided with a sliding groove (22), and the adjusting plate (18) has a sliding shaft (23), which is slidably disposed in the sliding groove (22).

7. A cable puller with high throughput according to claim 1, characterized in that: It also includes a camera (27), which is mounted on the front of the support of the foremost walking unit (1).

8. A cable puller with high throughput according to claim 1, characterized in that: The walking unit (1) has three walking wheel mechanisms (9), which are evenly distributed along the circumference.

9. A cable puller with high throughput according to claim 1, characterized in that: When two adjacent walking units (1) are connected in a mirror manner, the screw threads of the two units are opposite.

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