Drag chain self-adaptive tensioner and telescopic arm drag chain device

Abstract

The utility model discloses a drag chain self-adaptive tensioner and a telescopic arm drag chain device, and relates to the technical field of drag chains. The drag chain self-adaptive tensioner comprises a fixing support, a pin shaft, a roller and an extension spring. The fixed bracket is provided with an adjusting hole and is connected with a movable head of the oil cylinder; the pin shaft penetrates through the adjusting hole and can slide in the length direction of the adjusting hole, and an anti-disengaging limiting piece is arranged at the end of the pin shaft. The roller is sleeved on the pin shaft and can be in rolling contact with the drag chain below; the two ends of the extension spring are connected with the pin shaft and the fixing support respectively and used for providing tension, so that the idler wheel is attached to the upper surface of the drag chain, the left-right swinging phenomenon of the drag chain is effectively avoided, the drag chain is prevented from deviating, the risk that the drag chain is damaged due to swinging is reduced, and the service life of the drag chain is prolonged. Meanwhile, the bending, stretching or compression degree of the cable and the pipeline in the drag chain is effectively reduced, the service life of the cable and the pipeline is prolonged, and line faults or pipeline leakage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cable chain technology, and in particular to a cable chain adaptive tensioner and telescopic arm cable chain device. Background Technology

[0002] Cable chains are widely used in reciprocating motion applications, especially in automated equipment such as robotic arms, CNC machine tools, lifting and transport equipment, and automated warehouses. They are primarily used for traction and protection of internal cables, oil pipes, air pipes, water pipes, etc. Cable chains are typically composed of multiple links and can be structurally divided into three parts: the fixed side, the intermediate section, and the moving side. Taking a robotic arm cable chain as an example, the fixed side is usually securely mounted to the fixed part of the equipment, while the moving side is connected to the movable device on the robotic arm to accommodate its dynamic movements.

[0003] However, during high-frequency and long-term reciprocating motion, cable chains are prone to lateral swaying, which can cause them to deviate, making their operation unstable, increasing the risk of damage, and shortening their service life. At the same time, the cables and pipes inside the cable chain are also affected by the swaying, causing them to bend, stretch, or compress. This not only reduces the lifespan of the cables and pipes but may also lead to line faults or pipe leaks. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a cable chain adaptive tensioner and telescopic arm cable chain device, which aims to reduce the left and right swaying phenomenon during the reciprocating motion of the cable chain.

[0005] The technical solution provided by this utility model is as follows:

[0006] An adaptive tensioner for cable chains, comprising:

[0007] The fixed bracket is equipped with an adjustment hole and is connected to the movable head of the hydraulic cylinder;

[0008] A pin passes through the adjustment hole and can slide along the length direction of the adjustment hole, and an anti-disengagement limiting component is provided at the end of the pin;

[0009] The roller is fitted onto the pin and can make rolling contact with the cable chain below;

[0010] A tension spring, with its two ends connected to the pin and the fixed bracket respectively, is used to provide tension so that the roller fits against the upper surface of the cable chain.

[0011] Furthermore, the fixed bracket includes guide side plates arranged symmetrically on the left and right sides, and the adjustment hole is disposed on the guide side plates.

[0012] Furthermore, the guide side plate includes:

[0013] The connecting end connects to the movable head of the hydraulic cylinder;

[0014] The spring-hook end is positioned opposite to the connecting end and is connected to one end of the tension spring;

[0015] The middle section is located between the connecting end and the spring hook end, and the adjustment hole is located in the middle section.

[0016] Furthermore, the adjustment hole is an oblong hole.

[0017] Furthermore, a guide edge is formed on the side of the guide plate near the cable chain, and both the guide edge and the waist-shaped hole are vertically arranged.

[0018] Furthermore, the roller is made of nylon.

[0019] Furthermore, the anti-detachment limiting component is a locking nut.

[0020] On the other hand, the present invention provides a telescopic arm cable chain device, including the cable chain adaptive tensioner described in any of the above embodiments.

[0021] Furthermore, the telescopic boom cable chain device also includes:

[0022] Basic arm;

[0023] A telescopic arm is nested within the basic arm;

[0024] The hydraulic cylinder includes a fixed head and a movable head, wherein the fixed head is fixedly connected to the basic arm and the movable head is fixedly connected to the telescopic arm;

[0025] The cable chain is located below the roller.

[0026] Furthermore, the telescopic arm includes a first telescopic arm located near the basic arm, and the movable head is fixedly connected to the first telescopic arm.

[0027] Compared with the prior art, the adaptive tensioner for cable chains provided in this embodiment of the present invention has at least the following technical advantages:

[0028] The cable chain adaptive tensioner includes a fixed bracket, a pin, rollers, and a tension spring. The fixed bracket has an adjustment hole and connects to the movable head of the hydraulic cylinder; the pin passes through the adjustment hole and can slide along its length, with an anti-detachment limiting component at its end; the roller is sleeved on the pin and can roll in contact with the cable chain below; the tension spring is connected at both ends to the pin and the fixed bracket respectively, providing tension to ensure the roller adheres to the upper surface of the cable chain. This design effectively solves the left-right swaying phenomenon that occurs during high-frequency and long-term reciprocating motion of the cable chain, thereby effectively preventing the cable chain from deviating, improving the stability of cable chain operation, reducing the risk of damage caused by swaying, and extending the service life of the cable chain. At the same time, it effectively reduces the bending, stretching, or compression of cables and pipes inside the cable chain, thereby extending the service life of cables and pipes and reducing the occurrence of line faults or pipe leaks.

[0029] The telescopic boom cable chain device includes the cable chain adaptive tensioner in the above embodiments, and therefore has at least the technical effects of the cable chain adaptive tensioner, which will not be elaborated here. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the telescopic arm cable chain device from one perspective in an embodiment of this utility model;

[0032] Figure 2 This is a structural schematic diagram of the telescopic arm cable chain device from another perspective in an embodiment of this utility model.

[0033] Figure label:

[0034] 10. Fixed bracket; 11. Guide side plate; 111. Connecting end; 112. Spring hook end; 113. Middle section; 20. Adjustment hole; 30. Movable head; 40. Pin; 50. Roller; 60. Tension spring; 70. Locking nut; 80. Cable chain; 90. Fixed head. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. 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.

[0036] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0037] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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 be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.

[0039] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0040] Please refer to the attached document. Figure 1 and attached Figure 2 As shown, one embodiment of this utility model provides a telescopic arm cable chain device, including a cable chain adaptive tensioner.

[0041] The self-adaptive tensioner for the cable chain includes a fixed bracket 10, a pin 40, a roller 50, and a tension spring 60. The fixed bracket 10 has an adjustment hole 20 and is connected to the movable head 30 of a hydraulic cylinder. Driven by the hydraulic cylinder, the fixed bracket 10 can move synchronously with the movable head 30. The pin 40 passes through the adjustment hole 20 and can slide along the length of the adjustment hole 20. An anti-detachment limiting component is provided at the end of the pin 40, which effectively prevents the pin 40 from falling off, ensuring the stability of the cable chain device. The roller 50 is sleeved on the pin 40 and can roll in contact with the cable chain 80 below. During the operation of the cable chain 80, the roller 50 rotates. The tension spring 60 is connected at both ends to the pin 40 and the fixed bracket 10, respectively, to provide tension, causing the roller 50 to adhere to the upper surface of the cable chain 80. Under the action of the tension spring 60, the pin 40 can slide within the adjustment hole 20, so that the roller 50 can always be in contact with the upper surface of the cable chain 80 when the cable chain 80 is running, thereby effectively solving the left and right swaying phenomenon of the cable chain 80.

[0042] In this embodiment, the adaptive tensioner for the cable chain includes a fixed bracket 10, a pin 40, a roller 50, and a tension spring 60. The fixed bracket 10 is provided with an adjustment hole 20 and is connected to the movable head 30 of the hydraulic cylinder; the pin 40 passes through the adjustment hole 20 and can slide along the length direction of the adjustment hole 20, and an anti-detachment limiting component is provided at the end of the pin 40; the roller 50 is sleeved on the pin 40 and can roll in contact with the cable chain 80 below; the tension spring 60 is connected at both ends to the pin 40 and the fixed bracket 10 respectively, and is used to provide tension so that the roller 50 fits against the upper surface of the cable chain 80. This design effectively solves the left-right swaying phenomenon that occurs in the cable chain 80 during high-frequency and long-term reciprocating motion, thereby effectively preventing the cable chain 80 from deviating, improving the stability of the cable chain 80 operation, reducing the risk of damage to the cable chain 80 due to swaying, and extending the service life of the cable chain 80. At the same time, it effectively reduces the bending, stretching or compression of cables and pipes inside the cable chain 80, thereby extending the service life of cables and pipes and reducing the occurrence of line faults or pipe leaks.

[0043] In some alternative embodiments, the anti-detachment limiting element is a locking nut 70.

[0044] In some optional embodiments, the fixed bracket 10 includes guide side plates 11 symmetrically arranged on the left and right sides, with adjustment holes 20 disposed on the guide side plates 11. Specifically, the fixed bracket 10 includes a left guide side plate and a right guide side plate, with left and right adjustment holes respectively provided on the left and right guide side plates. The left and right ends of the pin 40 pass through the left and right adjustment holes respectively, and both ends of the pin 40 are equipped with locking nuts 70 to effectively prevent the pin 40 from falling off. To provide balanced tension, the tension springs 60 are configured in two ways: a left tension spring and a right tension spring. The two ends of the left tension spring are connected to the left end of the pin 40 and the left guide side plate respectively, while the two ends of the right tension spring are connected to the right end of the pin 40 and the right guide side plate respectively. Through the synergistic effect of the left and right tension springs, the drag chain 80 is effectively prevented from swaying left and right. It is worth noting that the number and installation position of the tension springs 60 can be flexibly adjusted according to actual application requirements.

[0045] In some optional embodiments, the guide side plate 11 includes a connecting end 111, a spring-hook end 112, and an intermediate section 113. The connecting end 111 is connected to the movable head 30 of the hydraulic cylinder; the spring-hook end 112 is disposed opposite to the connecting end 111 and is connected to one end of the tension spring 60; the intermediate section 113 is located between the connecting end 111 and the spring-hook end 112, and the adjustment hole 20 is disposed in the intermediate section 113.

[0046] In some alternative embodiments, the adjustment hole 20 is an oblong hole.

[0047] In some optional embodiments, a guide edge is formed on the side of the guide plate 11 near the cable chain 80. During the reciprocating motion of the cable chain 80, the guide edge can effectively prevent the cable chain 80 from deviating, ensuring that the cable chain 80 moves centered below the roller 50. It is worth noting that the orientation of the guide edge and the waist-shaped hole can be flexibly adjusted according to the actual running direction requirements of the cable chain 80. Exemplarily, both the guide edge and the waist-shaped hole are vertically arranged, but this is not a limitation. In some cases, the guide edge and the waist-shaped hole can also be inclined at a certain angle.

[0048] In some alternative embodiments, the roller 50 is made of nylon.

[0049] In some optional embodiments, the telescopic boom cable chain device further includes a base arm, a telescopic arm, a hydraulic cylinder, and a cable chain 80. The telescopic arm is nested with the base arm, and under the drive of the hydraulic cylinder, the telescopic arm can extend and retract relative to the base arm; the hydraulic cylinder includes a fixed head 90 and a movable head 30, the fixed head 90 being fixedly connected to the base arm, and the movable head 30 being fixedly connected to the telescopic arm; the cable chain 80 is located below the roller 50.

[0050] In some alternative embodiments, the telescopic arm includes a first telescopic arm near the base arm, and the movable head 30 is fixedly connected to the first telescopic arm.

[0051] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cable chain adaptive tensioner, characterized in that, include: The fixed bracket is equipped with an adjustment hole and is connected to the movable head of the hydraulic cylinder; A pin passes through the adjustment hole and can slide along the length direction of the adjustment hole, and an anti-disengagement limiting component is provided at the end of the pin; The roller is fitted onto the pin and can make rolling contact with the cable chain below; A tension spring, with its two ends connected to the pin and the fixed bracket respectively, is used to provide tension so that the roller fits against the upper surface of the cable chain.

2. The adaptive tensioner for cable chains according to claim 1, characterized in that, The fixed bracket includes guide side plates arranged symmetrically on the left and right, and the adjustment hole is disposed on the guide side plates.

3. The adaptive tensioner for cable chains according to claim 2, characterized in that, The guide side plate includes: The connecting end connects to the movable head of the hydraulic cylinder; The spring-hook end is positioned opposite to the connecting end and is connected to one end of the tension spring; The middle section is located between the connecting end and the spring hook end, and the adjustment hole is located in the middle section.

4. The cable chain adaptive tensioner according to claim 2, characterized in that, The adjustment hole is a waist-shaped hole.

5. The cable chain adaptive tensioner according to claim 4, characterized in that, The guide side plate has a guide edge on the side near the cable chain, and both the guide edge and the waist-shaped hole are vertically arranged.

6. The adaptive tensioner for cable chains according to claim 1, characterized in that, The roller is made of nylon.

7. The adaptive tensioner for cable chains according to claim 1, characterized in that, The anti-detachment limiting component is a locking nut.

8. A telescopic boom cable chain device, characterized in that, Includes the cable chain adaptive tensioner as described in any one of claims 1 to 7.

9. The telescopic boom cable chain device according to claim 8, characterized in that, Also includes: Basic arm; A telescopic arm is nested within the basic arm; The hydraulic cylinder includes a fixed head and a movable head, wherein the fixed head is fixedly connected to the basic arm and the movable head is fixedly connected to the telescopic arm; The cable chain is located below the roller.

10. The telescopic arm cable chain device according to claim 9, characterized in that, The telescopic arm includes a first telescopic arm located near the base arm, and the movable head is fixedly connected to the first telescopic arm.

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