A metal drag chain

Abstract

The present invention belongs to the technical field of drag chain equipment and discloses a metal drag chain comprising multiple drag block groups, the drag block group comprising a main chain plate and a baffle plate, the main chain plate comprising an inner chain plate and an outer chain plate of the same structure and symmetrical position, the movable plate being clamped between the inner chain plate and the outer chain plate, a fixed column pin being symmetrically arranged at the lower part of one side of the main chain plate, the fixed column pin being sequentially penetrated through the outer chain plate, the movable plate and the inner chain plate, a movable column pin being symmetrically arranged at the upper part of one side of the main chain plate, a strip hole being symmetrically opened at the upper part of one side of the movable plate, the movable column pin being penetrated through the strip hole and sliding along the strip hole. Under the action of the fixed column pin and the movable plate, the main chain plates are supported by the fixed column pin, the main chain plates are abutted against or opened and closed, the load force borne by the drag chain is converted into the longitudinal pulling force at the lower part of the main chain plate and the longitudinal pushing force at the upper part, and the bending is realized by the cooperation of the movable column pin and the strip hole, so as to increase the strength and bearing capacity of the drag chain and effectively prevent the deformation and collapse of the drag chain.

Description

Technical Field

[0001] The invention belongs to the technical field of drag chain equipment, and in particular relates to a metal drag chain. Background Art

[0002] At present, drag chains have been widely used in many fields such as CNC machine tools, stone machinery, glass machinery, door and window machinery, injection molding machines, manipulators, lifting and transportation equipment, and automated warehouses. Drag chains can play a role in traction and protection of cables, oil pipes, air pipes, water pipes, etc. built into the machinery, and at the same time make the machinery look more beautiful as a whole. The existing drag chains are mostly composed of several main chain plates connected. When the drag chain is in use, it can be divided into three parts according to the state of motion: the lower section of the drag chain, the steering ring section, and the upper section of the drag chain. The existing drag chain has a small hanging load capacity. When the drag chain is long, the drag chain will bend to varying degrees under its own weight and the action of built-in cables and pipes. This bending phenomenon will damage the built-in cables and pipes of the drag chain. If the drag chain is subjected to too much force, it may even cause the upper section of the drag chain to overlap the lower section of the drag chain, commonly known as "collapsed waist". If the upper section of the drag chain and the lower section of the drag chain are constantly rubbed for a long time, it will not only damage the built-in lines, but also seriously wear the drag chain, causing the drag chain to be disconnected and broken, and seriously shortening the service life of the drag chain.

[0003] The existing solution to the above technical problems is usually to set a follow-up support mechanism that follows the movement of the towline under the long-distance towline to support the long-distance towline and avoid the "collapse" phenomenon. Although the follow-up support mechanism solves the technical problem of the collapse of the towline, it still has the following defects:

[0004] 1. For long-distance drag chains, the accompanying drag chain follower bracket is also long. This kind of long-distance drag chain follower bracket is not only expensive and difficult to manage in the later stage, but also unstable and prone to failure.

[0005] 2. The follow-up support mechanism is only suitable for long-distance drag chains running at low speeds. When long-distance drag chains reciprocate at high speeds, it will cause partial disconnection of the drag chain. Moreover, when the drag chain moves at high speeds for a long time, the follow-up support mechanism will cause greater wear on the drag chain, which will seriously affect the operating reliability of the drag chain and shorten its service life.

[0006] In summary, how to design a drag chain that will not collapse during long-distance turnover work, has a long service life, and has guaranteed quality has become a technical problem that needs to be solved urgently. Summary of the invention

[0007] The object of the present invention is to provide a metal drag chain to solve the problems mentioned in the above background technology.

[0008] In order to achieve the above invention purpose, the technical solution adopted is:

[0009] The linkage is a chain which is connected to the chassis and is adapted to connect the two guide rails, wherein the two guide rails are connected to the chassis and are adapted to connect the two guide rails to the chassis.

[0010] The present invention is further configured as follows: a limiting column pin is symmetrically provided below one side of the main chain plate, a limiting strip hole is symmetrically opened below one side of the movable plate, and the limiting column pin is passed through the limiting strip hole and slides along the limiting strip hole.

[0011] The present invention is further configured as follows: a filling plate is provided between the inner link plate and the outer link plate, the filling plate is fixedly connected to the inner link plate and the outer link plate by the fixing screws, and two sides of the filling plate are respectively abutted against the movable plate.

[0012] The present invention is further configured such that: the fixing column pin and the limiting column pin are located on the same axis and are kept level with the bottom edges of the inner link plate and the outer link plate.

[0013] The present invention is further configured as follows: brackets are symmetrically provided on the upper and lower sides of the inner link plate, and the brackets match the baffle plate and are used for assembling the baffle plate.

[0014] The present invention is further configured as follows: limiting grooves are provided at four top corners of the movable plate, and the bottom width of two adjacent limiting grooves is the same as the width of the baffle.

[0015] The present invention is further configured such that: the fixed column pin and the movable column pin are located on the same axis and remain perpendicular to the bottom edges of the inner link plate and the outer link plate.

[0016] The present invention is further configured as follows: a protective shell is also provided on the main chain plate, and the protective shell is buckled on the outer chain plate and the inner chain plate.

[0017] The present invention is further configured as follows: the outer link plate, the inner link plate and the movable plate are configured in a rectangular parallelepiped and are all formed by one-time stamping of a metal alloy material.

[0018] The present invention is further configured as follows: arc-shaped limiting grooves are provided above both sides of the inner link plate and the outer link plate and located at the movable column pins, for constraining the position of the movable plate.

[0019] The invention discloses a metal drag chain, comprising a plurality of drag block groups, wherein the drag block group is composed of a main chain plate and a baffle plate fixed by fixing screws, the main chain plate comprising an inner chain plate and an outer chain plate of the same structure and symmetrical position, the movable plate being clamped between the inner chain plate and the outer chain plate, wherein a fixed column pin is symmetrically arranged at a lower side of one side of the main chain plate, the fixed column pin is sequentially penetrated through the outer chain plate, the movable plate and the inner chain plate, for maintaining the connection relationship between the movable plate and the drag block group, a movable column pin is symmetrically arranged at an upper side of one side of the main chain plate, a strip hole is symmetrically opened at an upper side of one side of the movable plate, the movable column pin is penetrated through the strip hole and slides along the strip hole, that is, through this arrangement, the drag block groups are connected in sequence through the movable plate, and straightening and bending are realized through the movable plate, and during the working period of the drag chain carrying a load, the fixed column pin is arranged at a lower side of the main chain plate, so that the drag block groups are supported by the fixed column pin lever and limitedly slide through the strip hole, thereby realizing the opening and closing of the main chain plates, preventing the collapse of the drag chain, and improving the service life of the drag chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of a metal drag chain provided in the first embodiment;

[0022] Figure 2 is a schematic diagram of the overall structure of the drag block group provided in the first embodiment;

[0023] Figure 3 is a bottom view of the drag block assembly provided in the first embodiment;

[0024] Figure 4 This is a schematic diagram of the internal connections of multiple drag block groups provided in the first embodiment;

[0025] Figure 5 This is a schematic diagram of the overall structure of a metal drag chain provided in the second embodiment;

[0026] Figure 6 is a schematic diagram of the overall structure of the drag block group provided in the second embodiment;

[0027] Figure 7 is a bottom view of the drag block assembly provided in the second embodiment;

[0028] Figure 8 This is a schematic diagram of the internal connection of multiple drag block groups provided in the second embodiment;

[0029] Fig. 9 is a schematic diagram of the overall structure of a drag block assembly equipped with a protective shell provided in the second embodiment;

[0030] Fig.10 It is an exploded view of the drag block assembly equipped with a protective shell provided in the second embodiment.

[0031] Figure numerals: 1. main chain plate; 11. inner chain plate; 111. bracket; 12. outer chain plate; 13. fixed pin; 14. movable pin; 15. limiting pin; 16. protective shell; 2. baffle; 3. movable plate; 31. strip hole; 32. limiting strip hole; 33. limiting groove; 4. fixing screw; 5. filling plate; 6. arc-shaped limiting groove; 100. drag block group. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can also be the internal connection of two components, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other. Example

[0036] A metal drag chain, such as Figure 1-Figure 4 As shown, it includes a plurality of drag block groups 100, the drag block group 100 includes two main chain plates 1 with the same structure and symmetrical positions and baffles 2 respectively arranged on the upper and lower sides of the main chain plate 1 and used to connect the main chain plate 1 and the carrying cable or pipeline, the plurality of drag block groups 100 are connected in sequence through a movable plate 3, the baffle 2 and the main chain plate 1 are fixedly connected to each other through fixing screws 4, the main chain plate 1 includes an inner chain plate 11 and an outer chain plate 12 with the same structure and symmetrical positions, the movable plate 3 is clamped between the inner chain plate 11 and the outer chain plate 12 and respectively abuts against the inner chain plate 11 and the outer chain plate 12, wherein a fixed column pin 13 is symmetrically arranged at the lower side of one side of the main chain plate 1, the fixed column pin 13 is sequentially penetrated through the outer chain plate 12, the movable plate 3 and the inner chain plate 11, and is used to maintain the connection relationship between the movable plate 3 and the drag block group 100, a movable column pin 14 is symmetrically arranged at the upper side of one side of the main chain plate 1, and the movable plate 3 A strip hole 31 is symmetrically opened on the upper side of one side, and the movable column pin 14 is penetrated by the strip hole 31 and slides along the strip hole 31.

[0037] In the specific implementation process, the drag block groups 100 are effectively connected through the movable plate 3 and the fixed column pin 13. Under the premise that the movable column pin 14 is inserted into the strip hole 31 and slides along the strip hole 31, the bending of multiple drag block groups 100 is realized. Here, the strip hole 31 is in an arc shape to match the bending angle of the drag block group 100. At the same time, the strip hole 31 also limits the bending angle of the drag block group 100 to prevent the drag chain from overlapping due to excessive bending. Through the cooperation between the movable column pin 14 and the strip hole 31, the movement of the main chain plate 1 can also be prevented, and the connection between the drag block groups 100 is kept stable. That is, in the above process, the movable plate 3 is used as an intermediate medium to connect the drag block groups 100 end to end in sequence. The fixed column pin 13 located at the lower side of the main chain plate 1 is inserted into the movable plate 3 and provides a lever support for the drag block group 100, and between the movable column pin 14 and the strip hole 31 Under the limit of , the position change of multiple drag block groups 100 is realized.

[0038] Further, such as Figure 2 and Figure 4As shown, a limiting column pin 15 is symmetrically provided at the lower side of one side of the main chain plate 1, and a limiting strip hole 32 is symmetrically opened at the lower side of one side of the movable plate 3. The limiting column pin 15 is penetrated by the limiting strip hole 32 and slides along the limiting strip hole 32. Here, the fixed column pin 13 and the limiting column pin 15 are located on the same axis and are kept horizontal with the bottom edges of the inner chain plate 11 and the outer chain plate 12, and the fixed column pin 13 and the movable column pin 14 are located on the same axis and are kept vertical with the bottom edges of the inner chain plate 11 and the outer chain plate 12. That is, through this arrangement, the connection relationship between the movable plate 3 and the inner chain plate 11 and the outer chain plate 12 is further stabilized by the limiting strip hole 32 and the limiting column pin 15, so that the drag block group 100 is kept stable in sliding and bending relative to the movable plate 3, thereby improving the overall stability and firmness of the drag chain.

[0039] It should be noted that if Figure 4 As shown, a filling plate 5 is provided between the inner link plate 11 and the outer link plate 12. The filling plate 5 is fixedly connected to the inner link plate 11 and the outer link plate 12 by fixing screws 4. Both sides of the filling plate 5 are respectively abutted against the movable plates 3 to fill the gap between the movable plates 3 and keep the structure stable.

[0040] Furthermore, the outer link plate 12, the inner link plate 11 and the movable plate 3 are arranged in a rectangular parallelepiped and are all formed by stamping a metal alloy material at one time, so as to improve the overall strength of the drag chain.

[0041] In the specific implementation process, arc-shaped limiting grooves 6 are provided above both sides of the inner link plate 11 and the outer link plate 12 and located at the movable column pin 14 to display the position of the movable plate 3.

[0042] During the operation of the drag chain, multiple drag block groups 100 are respectively connected head to tail via the movable plate 3. Under the action of the fixed column pin 13, the movable column pin 14 and the strip hole 31 and the limiting column pin 15 and the limiting strip hole 32, when the drag chain is in a straight state, the movable column pin 14 is located at one end of the strip hole 31 and abuts against the strip hole 31, and the limiting column pin 15 is located at one end of the limiting strip hole 32 and abuts against the limiting strip hole 32. At this time, the head and tail end surfaces of the main chain plates 1 of the drag block groups 100 connected head to tail are fully in contact. With the fixed column pin 13 as the axial lever support, the drag chain maintains a straight state and effectively prevents the waist collapse phenomenon. Due to load requirements, when the drag chain bends, the movable column pin 14 and the limiting strip hole 32 slide in the strip hole 31 and the limiting strip hole 32 respectively. Under the lever support of the fixed column pin 13, the main chain plate 1 The main chain plates 1 are supported by the fixed column pins 13 and the movable plate 3, and the main chain plates 1 are mutually abutted or opened and closed, and the load force borne by the drag chain is converted into the longitudinal tension below the main chain plates 1 and the longitudinal top force above, and the bending is realized by the cooperation of the movable column pins 14 and the bar holes 31, so as to increase the strength and carrying capacity of the drag chain and effectively prevent the deformation and collapse of the drag chain. Example

[0043] A metal drag chain, such as Figure 5-Figure 8 As shown, it includes a plurality of drag block groups 100, and the plurality of drag block groups 100 are connected in sequence through a movable plate 3. The drag block group 100 includes two main chain plates 1 with the same structure and symmetrical positions, and baffles 2 respectively arranged on the upper and lower sides of the main chain plate 1 and used to connect the main chain plate 1 and the carrying cable or pipeline. The baffle 2 and the main chain plate 1 are fixedly connected to each other through fixing screws 4. The main chain plate 1 includes an inner chain plate 11 and an outer chain plate 12 with the same structure and symmetrical positions. The movable plate 3 is clamped between the inner chain plate 11 and the outer chain plate 12 and abuts against the inner chain plate 11 and the outer chain plate 12 respectively. Among them, a fixed column pin 13 is symmetrically arranged at the lower side of one side of the main chain plate 1, and the fixed column pin 13 is sequentially penetrated through the outer chain plate 12, the movable plate 3 and the inner chain plate 11.

[0044] To maintain the connection between the movable plate 3 and the drag block assembly 100 , movable column pins 14 are symmetrically provided on one side of the main chain plate 1 , and strip holes 31 are symmetrically opened on one side of the movable plate 3 . The movable column pins 14 penetrate the strip holes 31 and slide along the strip holes 31 .

[0045] Furthermore, brackets 111 are symmetrically provided on the upper and lower sides of the inner chain plate 11 , and the brackets 111 match the baffle plate 2 and are used to assemble the baffle plate 2 , thereby further maintaining a stable connection between the baffle plate 2 and the main chain plate 1 under the premise that the baffle plate 2 is fixed by the fixing screws 4 .

[0046] In the specific implementation process, the four top corners of the movable plate 3 are provided with limiting grooves 33 , and the groove bottom width of two adjacent limiting grooves 33 is the same as the width of the baffle 2 , so as to maintain the connection stability of the baffle 2 .

[0047] It should be noted that the fixed column pin 13 and the movable column pin 14 are located on the same axis and remain perpendicular to the bottom edges of the inner link plate 11 and the outer link plate 12 .

[0048] In the specific implementation process, Fig. 9 and Fig.10 As shown, a protective shell 16 is also provided on the main chain plate 1, and the protective shell 16 is buckled on the outer chain plate 12 and the inner chain plate 11 to protect the main chain plate 1 from external scratches. Here, the inner side surface of the protective shell 16 is correspondingly provided with an air avoidance groove to match the external protrusion of the main chain plate 1, and the outer side surface of the protective shell 16 remains smooth.

[0049] It should be noted that the protective shell 16 is made of metal material, and its outer surface is spray-painted or electroplated. The protective shell 16 can also be made of plastic material or other materials.

[0050] Furthermore, the outer link plate 12, the inner link plate 11 and the movable plate 3 are arranged in a rectangular parallelepiped and are all formed by stamping a metal alloy material at one time, so as to improve the overall strength of the drag chain.

[0051] It should be noted that arc-shaped limiting grooves 6 are provided above both sides of the inner link plate 11 and the outer link plate 12 and located at the movable column pin 14 for indicating the position of the movable plate 3 .

[0052] It should be noted that, in the present embodiment, the movable plates 3 are butted against each other end to end to maintain the strength of the drag chain. When the drag chain is in a straight state, under the lever support of the fixed column pin 13, the head and tail end faces of the main chain plates 1 are completely butted against each other, the drag block group 100 is evenly stressed, and the load capacity is obvious. When bending according to environmental needs, the fixed column pin 13 is used as the axis, and the movable column pin 14 and the strip hole 31 are used as the steering guide and angle restriction, so that the main chain plates 1 can be opened and closed, which is convenient and flexible.

[0053] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A metal drag chain, comprising a plurality of drag block groups, wherein the plurality of drag block groups are sequentially connected through a movable plate, characterized in that: The drag block group includes two main chain plates of the same structure and symmetrical positions, and baffles respectively arranged on the upper and lower sides of the main chain plates and used to connect the main chain plates and carrying cables or pipelines, the baffles and the main chain plates are fixedly connected to each other by fixing screws, and the main chain plates include an inner chain plate and an outer chain plate of the same structure and symmetrical positions, the movable plate is clamped between the inner chain plate and the outer chain plate and abuts against the inner chain plate and the outer chain plate respectively, wherein fixed column pins are symmetrically arranged at the lower side of one side of the main chain plate, and the fixed column pins are sequentially penetrated through the outer chain plate, the movable plate and the inner chain plate, and are used to maintain the connection relationship between the movable plate and the drag block group, and movable column pins are symmetrically arranged at the upper side of one side of the main chain plate, and strip holes are symmetrically opened at the upper side of one side of the movable plate, and the movable column pins are penetrated through the strip holes The lockhole engages with the locking plate of the locking plate, and the locking plate is engaged with the locking plate by the locking nut. The locking plate is engaged with the locking plate by the locking nut. The locking nut is engaged with the locking plate by the locking nut.

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