Universal chain plate connecting structure and drag chain
By using a universal chain plate connection structure and incorporating the design of limiting components and hinge shafts, the problem of poor versatility of cable chain chain plates is solved, enabling flexible switching and stable connection of the cable chain in different states, thereby improving the flexibility and reliability of the cable chain.
Patent Information
- Application Number
- CN202423318403.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing cable chains have poor versatility in their chain plates, resulting in high manufacturing costs and difficulty in flexibly switching between different states.
The system adopts a universal chain plate connection structure, including a first chain plate, a second chain plate, and an intermediate connecting plate. Through the cooperation of limiting components and hinge shafts, the rotation angle of the chain plates is limited and the connection is stable. Combined with the design of limiting step surface and limiting convex and concave groove, the system ensures the transition of the chain plates between flat and arched states.
It enables flexible switching of the cable chain in different states, enhances the smoothness and stability of the chain plate connection, reduces the risk of wear, and improves production efficiency and equipment reliability.
Smart Images
Figure CN223594865U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a drag chain manufacturing technical field especially relates to a general chain plate connecting structure and drag chain. BACKGROUND
[0002] As a kind of transmission component widely used in various mechanical equipment, drag chain is mainly used to protect internal cable, oil pipe, gas pipe and other pipelines from external pulling, abrasion and environmental interference during equipment reciprocating motion. It is usually connected by a plurality of chain links, which can maintain relatively stable structure under linear, curved or torsional motion, so as to ensure the normal operation of internal pipeline. In industrial automation production line, numerical control machine tool, robot, material handling equipment and transportation, drag chain plays an indispensable role.
[0003] Drag chain links are connected by connecting plates to realize the extension and movement of drag chain. According to its use state, drag chain can be divided into the following two kinds, the first kind of drag chain is flat after fully expanded, and the second kind of drag chain is arched after fully expanded (with a certain arc). The existing drag chain needs to configure chain plates with different structures to realize the above two different states of drag chain, which has the problems of poor universality and high manufacturing cost. SUMMARY
[0004] The purpose of the present application is to provide a general chain plate connecting structure to solve the problem of poor universality of chain plate of drag chain in the prior art. In addition, the purpose of the present application is also to provide a drag chain comprising a general chain plate connecting structure.
[0005] To achieve this purpose, the present application adopts the following technical solutions:
[0006] The present application provides a general chain plate connecting structure, which comprises a first chain plate, a second chain plate and an intermediate connecting plate, wherein:
[0007] One end of the first chain plate is rotatably installed at the first end of the intermediate connecting plate by a preset angle, and one end of the second chain plate is rotatably installed at the second end of the intermediate connecting plate by a preset angle.
[0008] The first chain plate and the second chain plate have the same structure, the first end and the second end of the intermediate connecting plate are provided with first limit pieces, the two first limit pieces are symmetrically arranged along the central axis in the first direction, the first limit piece is provided with a first limit surface and a second limit surface in the second direction, and the distance between the second limit surface and the central axis of the intermediate connecting plate extending in the first direction is greater than the distance between the first limit surface and the central axis of the intermediate connecting plate extending in the first direction.
[0009] The first limiting member is located in the first limiting slot and limits the rotation angle of the first chain plate and the second chain plate through cooperation of the two.
[0010] Optionally, the intermediate connecting plate is in an overall elliptical structure, the circular arc portions at two ends thereof are used as connecting portions, the first limiting members on the connecting portions are fixedly connected with the hinge shafts in the first direction, the first limiting slots are in communication with the hinge holes, and the hinge shafts are matched with the hinge holes.
[0011] Optionally, the first end and the second end of the intermediate connecting plate are provided with second limiting members, the two second limiting members are symmetrically arranged about the central axis in the first direction, the second limiting member is provided with third limiting faces and fourth limiting faces in the second direction, and the distance between the fourth limiting face and the central axis of the intermediate connecting plate extending in the first direction is greater than the distance between the third limiting face and the central axis of the intermediate connecting plate extending in the first direction.
[0012] The fourth limiting face and the second limiting face face away from each other in the second direction, the two ends of the first chain plate and the second chain plate are provided with second limiting slots, the second limiting member is located in the second limiting slot and limits the rotation angle of the first chain plate and the second chain plate through cooperation of the two.
[0013] Optionally, the two ends of the intermediate connecting plate are provided with circular limiting step faces, the outer side faces of the middle portions of the first chain plate and the second chain plate are each outwardly extended with a limiting boss, the limiting boss is provided with a circular-arc-shaped limiting groove on the two sides in the first direction, and the limiting step face is inserted into the limiting groove to limit the intermediate connecting plate.
[0014] Optionally, the two sides of the limiting step face in the second direction are provided with first inclined faces towards the corresponding limiting bosses, and the upper walls of the limiting groove are provided with second inclined faces towards the corresponding limiting step faces in the second direction.
[0015] Optionally, the inner side faces of the first chain plate, the second chain plate and the intermediate connecting plate are each provided with at least one group of buckle tables for assembling upper and lower cover plates, and each group of buckle tables includes two buckle tables arranged in an upper-lower interval.
[0016] Optionally, the outer side faces of the two ends of the intermediate connecting plate in the first direction are provided with a plurality of convex ribs in the height direction.
[0017] Optionally, a plurality of weight-reducing holes are formed in the first chain plate, the second chain plate and the intermediate connecting plate.
[0018] A drag chain includes a plurality of mutually connected drag chain links, and adjacent two drag chain links are connected through the universal chain plate connecting structure.
[0019] Compared with the prior art, the universal chain plate connecting structure has the following advantages:
[0020] 1) By setting the first limiting surface and the second limiting surface with consistent offset on the first limiting piece, the position of the chain plate is changed to change the contact of different limiting surfaces of the first limiting piece with the same side of the first limiting groove, not only realizing the conversion of the flat state or the arch state of the drag chain, but also simple structure and convenient operation.
[0021] 2) By the cooperation of the hinge shaft and the hinge hole, the support point is provided for the rotation of the first chain plate and the second chain plate on the middle connecting plate, enhancing the smoothness and stability of the chain plate connection.
[0022] 3) By the cooperation of the second limiting piece and the second limiting groove, the rotation angle of the chain plate is further limited, ensuring that the rotation angle of the chain plate is more accurate and controllable, and avoiding the wear or damage caused by excessive rotation.
[0023] 4) By setting the limiting step surface on the middle connecting plate and cooperating with the limiting boss and the limiting groove, the loosening or misalignment between the middle connecting plate and the chain plate is prevented, and the connection stability and reliability of the chain link are improved. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate and understand the technical solutions in the embodiments of the present application, the drawings needed to be used in the background and embodiment description of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained according to the content of the embodiments of the present application and the drawings by those skilled in the art without creating labor.
[0025] Figure 1 is a three-dimensional structure schematic diagram of a general type chain plate connecting structure provided by the embodiments of the present application;
[0026] Figure 2 is a three-dimensional structure schematic diagram of a first chain plate of a general type chain plate connecting structure provided by the embodiments of the present application;
[0027] Figure 3 is a three-dimensional structure schematic diagram of a middle connecting plate of a general type chain plate connecting structure provided by the embodiments of the present application;
[0028] Figure 4 is a three-dimensional structure schematic diagram of another view of a middle connecting plate of a general type chain plate connecting structure provided by the embodiments of the present application. DETAILED DESCRIPTION
[0029] To facilitate understanding of this application, a more complete description of the application will be provided below with reference to the accompanying drawings. Preferred embodiments of the application are shown in the drawings. However, the application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0030] Please see Figures 1 to 4 As shown in the embodiment of this application, a general-purpose chain plate connection structure is provided, which includes a first chain plate 10, a second chain plate 20, and an intermediate connecting plate 30, wherein:
[0031] One end of the first chain plate 10 is rotatably mounted at a preset angle on the first end of the intermediate connecting plate 30, and one end of the second chain plate 20 is rotatably mounted at a preset angle on the second end of the intermediate connecting plate 30.
[0032] The first chain plate 10 and the second chain plate 20 have the same structure. Both the first and second ends of the intermediate connecting plate 30 are provided with first limiting members 31, and the two first limiting members 31 are positioned in a first direction (…). Figure 1 The first limiting member 31 is symmetrically arranged along the central axis in the X direction, and the first limiting member 31 is in the second direction ( Figure 1 The middle connecting plate 30 is provided with a first limiting surface 310 and a second limiting surface 311 in the Y direction. The distance between the second limiting surface 311 and the central axis of the middle connecting plate 30 extending in the first direction is greater than the distance between the first limiting surface 310 and the central axis of the middle connecting plate 30 extending in the first direction.
[0033] Both ends of the first chain plate 10 and the second chain plate 20 are provided with first limiting grooves 11. The first limiting member 31 is located in the first limiting groove 11 and limits the rotation angle of the first chain plate 10 and the second chain plate 20 through the cooperation of the two.
[0034] Specifically, when the cable chain changes state, the two ends of the intermediate connecting plate 30 are rotated to interchange positions.
[0035] By setting the first limiting surface 310 and the second limiting surface 311 consistent with the offset on the first limiting piece 31, the position of the chain plate is changed to change the contact of the different limiting surfaces of the first limiting piece 31 with the same side of the first limiting groove 11, which not only realizes the conversion of the flat state or the arch state of the drag chain, but also has a simple structure and is convenient to operate.
[0036] In an embodiment, the intermediate connecting plate 30 is an overall elliptical structure, the circular arc parts at both ends thereof are used as connecting parts, the first limiting piece 31 on the connecting part is fixedly connected with the hinge shaft 32 in the first direction, the first limiting groove 11 is communicated with the hinge hole 12, and the hinge shaft 32 is matched with the hinge hole 12.
[0037] Through the cooperation of the hinge shaft 32 and the hinge hole 12, a support point is provided for the rotation of the first chain plate 10 and the second chain plate 20 on the intermediate connecting plate 30, and the smoothness and stability of the chain plate connection are enhanced.
[0038] In an embodiment, the first end and the second end of the intermediate connecting plate 30 are provided with the second limiting piece 33, the two second limiting pieces 33 are symmetrically arranged along the central axis in the first direction, the second limiting piece 33 is provided with the third limiting surface 330 and the fourth limiting surface 331 in the second direction, and the distance between the fourth limiting surface 331 and the central axis of the intermediate connecting plate 30 extending in the first direction is greater than the distance between the third limiting surface 330 and the central axis of the intermediate connecting plate 30 extending in the first direction.
[0039] The fourth limiting surface 331 faces opposite to the second limiting surface 311 in the second direction, the first chain plate 10 and the second chain plate 20 are both provided with the second limiting groove 13, the second limiting piece 33 is located in the second limiting groove 13 and limits the rotation angle of the first chain plate 10 and the second chain plate 20 through the cooperation of the two.
[0040] Through the cooperation of the second limiting piece 33 and the second limiting groove 13, the limitation of the rotation angle of the chain plate is further enhanced, the rotation angle of the chain plate is more accurately controllable, and the abrasion or damage caused by excessive rotation is avoided.
[0041] In an embodiment, the intermediate connecting plate 30 is provided with a circular limiting step surface 34 at both ends, the first chain plate 10 and the second chain plate 20 are both provided with a limiting boss 14 outwardly extending from the outer side surface of the middle part, the limiting boss 14 is provided with a circular-arc-shaped limiting groove 140 on both sides in the first direction, and the limiting step surface 34 is inserted into the limiting groove 140 to limit the intermediate connecting plate 30.
[0042] By setting the limiting step surface 34 on the intermediate connecting plate 30 and cooperating with the limiting boss 14 and the limiting groove 140, the loosening or misalignment between the intermediate connecting plate 30 and the chain plate is prevented, and the connection stability and reliability of the chain link are improved.
[0043] In an embodiment, the first inclined surface 340 is arranged on the two sides of the limiting step surface 34 along the second direction and towards the corresponding limiting boss 14, and the second inclined surface is arranged on the two sides of the upper wall of the limiting groove 140 along the second direction and towards the corresponding limiting step surface 34.
[0044] Through the cooperation of the first inclined surface 340 and the second inclined surface, the limiting boss 14 is prevented from being scratched with the limiting groove 140 during rotation, thereby reducing the wear and seizure problems during work.
[0045] In an embodiment, at least one set of buckle tables 15 for assembling the upper and lower cover plates is arranged on the inner side of the first chain plate 10, the second chain plate 20 and the intermediate connecting plate 30, and each set of buckle tables 15 includes two buckle tables 15 arranged correspondingly in an upper and lower interval.
[0046] Through the design of the buckle table 15, the workload during chain installation is reduced, the production efficiency is improved, and the buckle design ensures the stability and safety of the structure.
[0047] In an embodiment, a plurality of convex ribs 35 are arranged on the outer side of the intermediate connecting plate 30 along the height direction at both ends along the first direction.
[0048] Through the design of the convex rib 35 at both ends of the intermediate connecting plate 30, not only the bending and twisting resistance of the intermediate connecting plate 30 is improved, but also the connection of the limiting boss 14 and the limiting groove 140 is facilitated.
[0049] In an embodiment, a plurality of weight reduction holes 16 are arranged on the first chain plate 10, the second chain plate 20 and the intermediate connecting plate 30.
[0050] Through the arrangement of the weight reduction hole 16 on the chain plate and the intermediate connecting plate 30, the weight of the chain plate and the intermediate connecting plate 30 is reduced, thereby reducing the overall quality of the drag chain, reducing the burden on the equipment, saving energy consumption, and improving the working flexibility of the drag chain.
[0051] A drag chain includes a plurality of connected drag chain links, and adjacent two drag chain links are connected through the above-mentioned universal chain plate connecting structure.
[0052] The above embodiments only illustrate the basic principles and characteristics of the present application, and the present application is not limited by the above examples. Various changes and modifications of the present application fall within the scope of the present application without departing from the spirit and scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A universal link plate connection structure characterized by comprising: The universal chain plate connecting structure comprises a first chain plate, a second chain plate and an intermediate connecting plate, wherein: One end of the first chain plate is rotatably installed at a first end of the intermediate connecting plate by a preset angle, and one end of the second chain plate is rotatably installed at a second end of the intermediate connecting plate by a preset angle; The first chain plate and the second chain plate are of the same structure, the first end and the second end of the intermediate connecting plate are provided with first limiting members, the two first limiting members are symmetrically arranged along a central axis in a first direction, the first limiting member is provided with a first limiting surface and a second limiting surface in a second direction, and the distance between the second limiting surface and the central axis of the intermediate connecting plate extending in the first direction is greater than the distance between the first limiting surface and the central axis of the intermediate connecting plate extending in the first direction; Both ends of the first chain plate and the second chain plate are provided with first limiting grooves, and the first limiting member is located in the first limiting groove and limits the rotation angle of the first chain plate and the second chain plate through cooperation of the two.
2. The universal chain link connection structure of claim 1, wherein, The intermediate connecting plate is of an overall elliptical structure, the circular arc portions at both ends thereof serve as connecting portions, the first limiting member on the connecting portion is fixedly connected with a hinge shaft along the first direction, the first limiting groove is in communication with a hinge hole, and the hinge shaft is matched with the hinge hole.
3. The universal chain link structure of claim 1, wherein, The first end and the second end of the intermediate connecting plate are provided with second limiting members, the two second limiting members are symmetrically arranged along the central axis in the first direction, the second limiting member is provided with a third limiting surface and a fourth limiting surface in the second direction, and the distance between the fourth limiting surface and the central axis of the intermediate connecting plate extending in the first direction is greater than the distance between the third limiting surface and the central axis of the intermediate connecting plate extending in the first direction; The fourth limiting surface and the second limiting surface face away from each other in the second direction, both ends of the first chain plate and the second chain plate are provided with second limiting grooves, and the second limiting member is located in the second limiting groove and limits the rotation angle of the first chain plate and the second chain plate through cooperation of the two.
4. The universal chain link connection structure of claim 1, wherein, Both ends of the intermediate connecting plate are provided with circular limiting step surfaces, the middle outer side surfaces of the first chain plate and the second chain plate are each outwardly extended to form a limiting boss, the limiting boss is provided with a circular-arc-shaped limiting groove on both sides along the first direction, and the limiting step surface is inserted into the limiting groove to limit the intermediate connecting plate.
5. The universal chain link connection structure of claim 4, wherein, First inclined surfaces are arranged on both sides of the limiting step surface along the second direction and face the corresponding limiting boss, and second inclined surfaces are arranged on both sides of the limiting groove upper wall along the second direction and face the corresponding limiting step surface.
6. The universal chain link connection structure of claim 1, wherein, At least one set of buckle tables for assembling upper and lower cover plates is arranged on the inner side surfaces of the first chain plate, the second chain plate and the intermediate connecting plate, and each set of buckle tables comprises two buckle tables arranged in correspondence and spaced apart in an up-down direction.
7. The universal chain link connection structure of claim 1, wherein A plurality of convex ribs are arranged on the outer side surfaces of both ends of the intermediate connecting plate along the height direction.
8. The universal link plate connection structure according to claim 1, wherein A plurality of lightening holes are formed in the first chain plate, the second chain plate and the intermediate connecting plate.
9. A drag chain, characterized in that The drag chain comprises a plurality of mutually connected drag chain links, and two adjacent drag chain links are connected through the universal chain plate connecting structure as claimed in any one of claims 1-8.