CN-224214635-U - Drag chain self-adaptive tensioner and telescopic arm drag chain device

CN224214635UCN 224214635 UCN224214635 UCN 224214635UCN-224214635-U

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 fixed bracket, a pin shaft, a roller and an extension spring. The fixed support 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 along the length direction of the adjusting hole, the end part of the pin shaft is provided with an anti-falling limiting piece, the roller is sleeved on the pin shaft and can be in rolling contact with a drag chain below the pin shaft, two ends of the tension spring are respectively connected with the pin shaft and the fixed support and used for providing tension, so that the roller is attached to the upper surface of the drag chain, the phenomenon of left-right swing of the drag chain is effectively solved, the drag chain is prevented from deviating, the risk of damage to the drag chain due to swing is reduced, and the service life of the drag chain is prolonged. Meanwhile, the bending, stretching or compressing degree of the cable and the pipeline in the drag chain is effectively reduced, the service lives of the cable and the pipeline are prolonged, and the occurrence of line faults or pipeline leakage is reduced.

Inventors

LIU GUOLIANG
HUANG CHENGYUN
ZHANG ZHIQIANG
WANG QUANLE

Assignees

湖南星邦智能装备股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250526

Claims (10)

1. A drag chain adaptive tensioner comprising: the fixed bracket is provided with an adjusting hole and is connected with the movable head of the oil cylinder; The pin shaft penetrates through the adjusting hole and can slide along the length direction of the adjusting hole, and an anti-falling limiting piece is arranged at the end part of the pin shaft; the roller is sleeved on the pin shaft and can be in rolling contact with the drag chain below; and the two ends of the extension spring are respectively connected with the pin shaft and the fixed support and are used for providing tension so that the roller is attached to the upper surface of the drag chain.
2. The drag chain adaptive tensioner of claim 1, wherein the fixed bracket comprises laterally symmetrically disposed guide side plates, the adjustment aperture being disposed on the guide side plates.
3. The drag chain adaptive tensioner of claim 2, wherein the guide side plate comprises: the connecting end is connected with the movable head of the oil cylinder; The spring hanging end is arranged opposite to the connecting end and is connected with one end of the extension spring; The middle section is positioned between the connecting end and the spring hanging end, and the adjusting hole is formed in the middle section.
4. The drag chain adaptive tensioner of claim 2, wherein the adjustment aperture is a kidney-shaped aperture.
5. The adaptive tensioner of a drag chain of claim 4, wherein the side of the guide side plate adjacent to the drag chain is formed with a guide edge, the guide edge and the waist-shaped hole being disposed vertically.
6. The drag chain adaptive tensioner of claim 1, wherein the roller is a nylon material.
7. The drag chain adaptive tensioner of claim 1, wherein the anti-slip limit is a lock nut.
8. A telescopic arm drag chain apparatus comprising a drag chain adaptive tensioner as claimed in any one of claims 1 to 7.
9. The telescopic arm drag chain device according to claim 8, further comprising: A base arm; The telescopic arm is nested with the basic arm; The oil cylinder comprises a fixed head and a movable head, the fixed head is fixedly connected with the basic arm, and the movable head is fixedly connected with the telescopic arm; And the drag chain is positioned below the roller.
10. The telescoping boom drag chain apparatus of claim 9, wherein said telescoping boom comprises a first telescoping boom proximate said base boom, said movable head being fixedly connected to said first telescoping boom.

Description

Drag chain self-adaptive tensioner and telescopic arm drag chain device Technical Field The utility model relates to the technical field of drag chains, in particular to a drag chain self-adaptive tensioner and a telescopic arm drag chain device. Background The drag chain is widely applied to reciprocating occasions, especially in mechanical arms, numerical control machine tools, hoisting and transporting equipment, automatic warehouses and other automatic equipment, and is mainly used for traction and protection of built-in cables, oil pipes, air pipes, water pipes and the like. Drag chains are typically formed from a plurality of links connected together and are structurally divided into three sections, a fixed side, a middle section, and a moving side. Taking the example of a robotic drag chain, the stationary side is typically mounted securely to the stationary part of the apparatus, while the moving side is coupled to a movable device on the robotic arm to accommodate the dynamic movement of the robotic arm. However, the drag chain is easy to swing left and right in the process of high-frequency and long-time reciprocating motion, so that the drag chain is offset, the drag chain is unstable to operate, the risk of damage to the drag chain is increased, and the service life of the drag chain is shortened. At the same time, the cables and pipes inside the drag chain are also subject to oscillations causing bending, stretching or compression, which not only reduces the service life of the cables and pipes, but may also cause line faults or pipe leaks. Disclosure of utility model In order to solve the technical problems, the utility model aims to provide a drag chain self-adaptive tensioner and a telescopic arm drag chain device, which aim to reduce the phenomenon of left-right swing in the drag chain reciprocating motion process. The technical scheme provided by the utility model is as follows: a tow chain adaptive tensioner comprising: the fixed bracket is provided with an adjusting hole and is connected with the movable head of the oil cylinder; The pin shaft penetrates through the adjusting hole and can slide along the length direction of the adjusting hole, and an anti-falling limiting piece is arranged at the end part of the pin shaft; the roller is sleeved on the pin shaft and can be in rolling contact with the drag chain below; and the two ends of the extension spring are respectively connected with the pin shaft and the fixed support and are used for providing tension so that the roller is attached to the upper surface of the drag chain. Further, the fixing support comprises guide side plates which are symmetrically arranged left and right, and the adjusting holes are formed in the guide side plates. Further, the guide side plate includes: the connecting end is connected with the movable head of the oil cylinder; The spring hanging end is arranged opposite to the connecting end and is connected with one end of the extension spring; The middle section is positioned between the connecting end and the spring hanging end, and the adjusting hole is formed in the middle section. Further, the adjusting hole is a waist-shaped hole. Further, a guide edge is formed on one side, close to the drag chain, of the guide side plate, and the guide edge and the waist-shaped holes are all arranged vertically. Further, the roller is made of nylon material. Further, the anti-falling limiting piece is a lock nut. In another aspect, the present utility model provides a telescopic arm drag chain apparatus comprising a drag chain adaptive tensioner as in any of the above embodiments. Further, the telescopic arm drag chain device further comprises: A base arm; The telescopic arm is nested with the basic arm; The oil cylinder comprises a fixed head and a movable head, the fixed head is fixedly connected with the basic arm, and the movable head is fixedly connected with the telescopic arm; And the drag chain is positioned below the roller. Further, the telescopic arm comprises a first telescopic arm close to the basic arm, and the movable head is fixedly connected with the first telescopic arm. Compared with the prior art, the drag chain self-adaptive tensioner provided by the embodiment of the utility model has at least the following technical effects: The drag chain self-adaptive tensioner comprises a fixed bracket, 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 along the length direction of the adjusting hole, the end part of the pin shaft is provided with an anti-falling limiting piece, the roller is sleeved on the pin shaft and can be in rolling contact with a drag chain below, and two ends of the stretching spring are respectively connected with the pin shaft and the fixed bracket and are used for providing tension so that the roller is attached