Traction external follow-up drag chain supporting mechanism

Abstract

The utility model relates to the technical field of follow-up mechanisms, and discloses a follow-up drag chain supporting mechanism with external traction, which comprises two groups of steel wire ropes, a fixed plate fixed on a lathe bed and a drag chain supporting component arranged on a track in a sliding manner, a drag chain is arranged in the track, and the drag chain supporting component comprises first drag chain brackets positioned at two end parts; the top end of the first drag chain support is provided with a carrier roller used for supporting a drag chain. Pulley blocks are arranged on the outer side of the top end of the first drag chain support in pairs. One ends of the two groups of steel wire ropes are connected with a cross beam serving as a tow chain traction end, and the other ends are connected with the fixed plate by bypassing the first tow chain brackets at different ends, so that the tow chain and the steel wire ropes are not in the same plane; the plane where the steel wire rope is located and the motion path of the drag chain are staggered, the plane where the steel wire rope moves is located outside the track all the time and does not interfere with the motion track of the drag chain, and friction between the drag chain and the steel wire rope in the process that the cross beam drives the drag chain to move is prevented.

Description

Technical Field

[0001] This utility model relates to the field of follower mechanism technology, and in particular to a traction external follower drag chain support mechanism. Background Technology

[0002] Large-format laser cutting machines have advantages such as low price and superior performance. With the continuous optimization and progress of cutting machines, large-format laser cutting machines have become a trend. However, due to their large size and long cable chains, conventional cable chain support structures cannot support the latter half of the cable chain, causing the cable chain to sag and be damaged. Therefore, it is necessary to configure a follow-up cable chain support mechanism, which can move with the cable chain to prevent sagging and provide full support for the cable chain.

[0003] The invention patent with publication number CN118875548B discloses a follow-up cable chain support mechanism and its working method. It uses cable chain brackets to provide full support for the cable chain, fully protecting the cable chain and preventing sagging. The top of the two sets of cable chain brackets is equipped with a pair of rollers. The steel wire rope is wrapped around the rollers, and the movement of the crossbeam can drive the follow-up movement of the cable chain brackets. The upper rollers support the cable chain. However, in actual application, it was found that because the cable chain and the rollers are in an up-down position and the steel wire rope is wrapped around the two rollers, the cable chain tends to sag slightly during operation. This is because the moving speed of the rollers is half the moving speed of the steel wire rope traction end. This can easily cause the steel wire rope to wear on the outer wall of the cable chain. After long-term operation, the cable chain is easily worn out. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a traction-external follow-up drag chain support mechanism. By offsetting the plane where the wire rope is located from the movement path of the drag chain, the plane where the wire rope moves is always located outside the track, without interfering with the movement trajectory of the drag chain, thus preventing the drag chain from being damaged due to friction between the drag chain and the wire rope during the movement of the drag chain driven by the crossbeam.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] An externally mounted follow-up cable chain support mechanism includes two sets of steel wire ropes, a fixed plate fixed to the bed, and a cable chain support assembly slidably mounted on a track. A cable chain is installed in the track. The cable chain support assembly includes a first cable chain bracket located at both ends. The top of the first cable chain bracket is provided with a roller for supporting the cable chain. Pairs of pulleys are provided on the outer side of the top of the first cable chain bracket. One end of each of the two sets of steel wire ropes is connected to a crossbeam that serves as the traction end of the cable chain, and the other end passes around the first cable chain bracket at different ends and is connected to the fixed plate, so that the cable chain and the steel wire ropes are not in the same plane.

[0007] As a further implementation, the track includes two V-shaped tracks arranged in pairs, with a protective cover between the two V-shaped tracks. The protective cover serves as the fixed end of the cable chain, so that the portion of the cable chain near the fixed end is located within the two V-shaped tracks; the portion of the cable chain near the traction end bypasses one of the first cable chain brackets and is fixedly connected to the crossbeam.

[0008] As a further implementation, hooks are provided on the two opposite sides of the crossbeam, and one end of two sets of steel wire ropes are connected by the hooks; one set of hooks is located on the same plane as the end of the drag chain.

[0009] As a further implementation, the cable chain support assembly also includes a second cable chain bracket located in the middle. The first and second cable chain brackets are arranged in parallel. All three cable chain brackets are H-shaped, with V-shaped wheels and V-shaped tracks at the bottom. The top of the second cable chain bracket is also equipped with a roller. The cable chain brackets are connected to each other as an integral structure by connecting beams.

[0010] As a further implementation, the wire rope includes a first wire rope and a second wire rope, with one end of the first wire rope and the second wire rope connected to a fixed plate via a tensioning shaft.

[0011] As a further implementation, each pair of pulleys includes an upper pulley and a lower pulley, with the pulleys located outside the track; the wire rope passes through the lower pulley, around the upper pulley, and through the pulleys between the upper and lower pulleys to connect with the crossbeam.

[0012] As a further implementation, the pulley block is located on the same side of the two sets of first drag chain supports, so that the plane containing the two sets of wire ropes is located outside the track.

[0013] As a further implementation, the track is fixed to the ground.

[0014] As a further implementation, a wire groove is provided below the protective cover.

[0015] As a further implementation, the distance between the two V-shaped tracks is greater than the width of the cable chain.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention solves the problem of wire rope easily wearing down the cable chain by staggering the plane of the wire rope from the movement path of the cable chain. The plane of the wire rope is always located outside the track and does not interfere with the movement trajectory of the cable chain. This prevents friction between the cable chain and the wire rope during the movement of the cable chain driven by the crossbeam. It also eliminates the risk of wire rope friction against the cable chain, protecting the cable chain and facilitating later maintenance. The pulley block adopts upper and lower double pulleys, and the wire rope passes between the upper and lower pulleys. The double pulley anti-detachment mechanism can prevent the wire rope from loosening and falling off. Considering that the speed of the cable chain traction end is greater than the moving speed of the cable chain support, a second cable chain support is added between the first cable chain support to better prevent the cable chain from sagging. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0019] Figure 1 This is a front view of the externally mounted follow-up drag chain support mechanism in this embodiment of the present invention;

[0020] Figure 2 This is an isometric view of the traction external follow-up drag chain support mechanism in this embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the drag chain support component in an embodiment of this utility model.

[0022] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0023] Among them: 1. Cable chain, 2. Cable chain support assembly, 3. Crossbeam, 4. Hook, 5. First wire rope, 6. Track, 7. Second wire rope, 8. Protective cover, 9. Cable trough, 10. Fixing plate, 11. Nut, 12. Tensioning shaft;

[0024] 21. First upper pulley, 22. First lower pulley, 23. Second upper pulley, 24. Second lower pulley, 25. Idler roller, 26. Connecting beam, 27. Support column, 28. V-shaped wheel. Detailed Implementation

[0025] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0026] Example 1

[0027] In a typical embodiment of this utility model, refer to Figures 1-3 As shown, a traction-external follow-up drag chain support mechanism includes two sets of steel wire ropes, a fixed plate fixed to the bed, and a drag chain support assembly 2 slidably mounted on a track. A drag chain is provided in the track 6. The drag chain support assembly 2 includes a first drag chain bracket located at both ends. The top of the first drag chain bracket is provided with a roller for supporting the drag chain. Pairs of pulley groups are provided on the outer side of the top of the first drag chain bracket. One end of each of the two sets of steel wire ropes is connected to a crossbeam 3, which serves as the traction end of the drag chain 1. The other end passes around the first drag chain brackets at different ends and is connected to the fixed plate 10, so that the drag chain 1 and the steel wire ropes are not in the same plane.

[0028] By staggering the plane where the wire rope is located from the movement path of the cable chain, friction between the crossbeam and the wire rope is prevented during the movement of the cable chain driven by the crossbeam, thus solving the problem of easy wear of the cable chain by the wire rope in the existing technology.

[0029] like Figure 1 and Figure 2 As shown, in this embodiment, the track 6 is fixed to the ground, and the fixing plate 10 is fixedly installed at the bed position.

[0030] Track 6 includes two V-shaped tracks arranged in pairs, with a protective cover 8 between them. The protective cover serves as the fixed end of the cable chain, allowing the portion of the cable chain near the fixed end to move within the two V-shaped tracks. Figure 2 As shown. A wire groove 9 is provided below the protective cover for the wires inside the cable chain to pass through. The distance between the two V-shaped tracks is greater than the width of the cable chain 1, so that the cable chain only moves in the space between the two V-shaped tracks.

[0031] The cable chain support assembly 2 is slidably mounted on two V-shaped tracks, such as... Figure 1 As shown, it can move left and right along track 6. The traction end of the cable chain 1 is the crossbeam 3 on the machine tool, which is existing technology. Figure 1 Taking the perspective as an example, the movable end of the cable chain 1 bypasses the cable chain bracket at the left end of the cable chain support component 2 and is fixed to the left side of the crossbeam 3, and the crossbeam 3 can drive the cable chain to move laterally.

[0032] like Figure 3 As shown, the cable chain support assembly 2 in this embodiment includes three sets of cable chain brackets: a first cable chain bracket located at both ends and a second cable chain bracket located in the middle. The three sets of cable chain brackets are arranged in parallel and are all H-shaped. Each bracket consists of two support columns 27 and a connecting rod between the support columns, forming an H-shaped bracket structure. The distance between the two support columns 27 is adapted to the distance between the two V-shaped tracks. V-shaped wheels 28 are installed at the bottom of the support columns 27, allowing the cable chain bracket to slide on the two V-shaped tracks via the V-shaped wheels 28. A set of idler rollers 25 is provided between the tops of the two support columns 27 to support the cable chain and prevent it from sagging.

[0033] In this embodiment, both the first and second cable chain supports are equipped with idler rollers 25 at their tops for easy support of the cable chain. The three sets of cable chain supports are connected into a single structure by connecting beams 26, enabling synchronous movement.

[0034] like Figures 1-3 As shown, a pulley group is provided on the outer side of the top of a support column 27 on the same side of the two sets of first drag chain brackets. The pulley group is located on the same side of the first drag chain bracket. In this embodiment, it is located on the front side of the top of the support column 27. The pulley group is located on the side of the support column 27 away from the idler roller 25. The pulley group is used to cooperate with the wire rope so that the movement of the wire rope and the movement trajectory of the idler roller do not interfere with each other.

[0035] like Figure 1 and Figure 2 As shown, a set of hooks 4 are fixed on the left and right sides of the crossbeam 3. The hooks are used to fix the movable end of the wire rope. The hook 4 on the left side of the crossbeam is located in front of the end of the cable chain at this plane, so that the plane where the wire rope is located is offset from the cable chain, and the wire rope will not interfere with the cable chain.

[0036] like Figure 3 As shown, the second cable chain support in the middle does not have a pulley system, while the first cable chain supports at both ends each have a pair of pulley systems located outside the track. The left-end first cable chain support column has a first upper pulley 21 and a first lower pulley 22 on its front side, while the right-end first cable chain support column has a corresponding second upper pulley 23 and a second lower pulley 24. The height of the upper pulleys is higher than the height of the corresponding idler rollers. The space between the upper and lower pulleys is located in the middle of the idler roller end face.

[0037] The wire rope includes a first wire rope 5 and a second wire rope 7. One end of the first wire rope 5 and the second wire rope 7 are fixed to a fixing plate 10 via a tensioning shaft 12 and a nut. The fixing plate 10 has a U-shaped cross-section, and the side plates facilitate the fixing of the wire rope. Fixing the wire rope via the tensioning shaft 12 and the nut 11 is existing technology, and the wire rope can be tensioned by adjusting the nut.

[0038] After the fixed ends of the first wire rope 5 and the second wire rope 7 are fixed on the fixed plate 10, the movable end of the first wire rope 5 passes to the left through the space between the first upper pulley 21 and the first lower pulley 22 at the first drag chain bracket at the left end and is fixed to the hook 4 on the left side of the crossbeam. The second wire rope 7 passes through the space between the second upper pulley 23 and the second lower pulley 24 at the first drag chain bracket at the right end and is fixed to the hook 4 on the right side of the crossbeam 3.

[0039] It is understandable that the fixing points of the hook, pulley block, and fixing plate 10 are set at the same vertical plane, so that the plane where the two wire ropes are located is a vertical plane and is located outside the track, so that the wire ropes do not interfere with the drag chain.

[0040] In this embodiment, the wire rope passes through the space between the upper and lower pulleys, and a double pulley anti-detachment mechanism is used at the pulleys to prevent the wire rope from loosening and falling off.

[0041] like Figure 1 As shown, when the crossbeam moves to the right, since one end of the first steel wire rope 5 is fixed to the fixed plate 10, the first steel wire rope 5 can push the first drag chain bracket on the left to move to the right. Meanwhile, the second steel wire rope 7, through a pulley system, can limit the distance the first drag chain bracket on the right can move to the right, preventing loss of control. Conversely, when the crossbeam moves to the left, the second steel wire rope 7 pushes the drag chain bracket, while the first steel wire rope 5 acts as a restraint.

[0042] During the movement, under the action of the wire rope, the lower pulley acts as a movable pulley. The movement speed of the lower pulley is half that of the drag chain traction end. When the crossbeam moves to the right to the set point, the drag chain can be supported by the idler roller 25 on the second drag chain bracket to ensure that the drag chain does not sag.

[0043] Throughout the entire process, the plane in which the wire rope moves is always located outside the track, without interfering with the movement trajectory of the cable chain. This avoids contact between the cable chain and the wire rope, eliminates the risk of the wire rope rubbing against the cable chain, protects the cable chain, and facilitates later maintenance.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A towed exoskeleton follow-up chain support mechanism characterized by, The device comprises two groups of steel wires, a fixed plate fixed at a bed body, and a drag chain support assembly slidingly arranged on a track, the track is internally provided with a drag chain, the drag chain support assembly comprises first drag chain supports located at two ends, the top end of the first drag chain support is provided with a carrier roller for supporting the drag chain, and a pair of pulley blocks are arranged on the outer side of the top end of the first drag chain support; one end of the two groups of steel wires is connected to a cross beam as a drag chain traction end, and the other end is connected to the fixed plate by passing through the first drag chain supports at different ends, so that the drag chain and the steel wires are not in the same plane.

2. The drag-external follow-up type chain drag support mechanism according to claim 1, wherein The track comprises two pairs of V-shaped tracks, a shroud is arranged between the two pairs of V-shaped tracks, the shroud serves as a fixed end of the drag chain, and the part of the drag chain close to the fixed end is located in the two pairs of V-shaped tracks; the part of the drag chain close to the traction end is fixedly connected to the cross beam by passing through one group of first drag chain supports.

3. The drag-external follow-up type chain drag support mechanism according to claim 2, wherein Hooks are arranged on the two opposite sides of the cross beam, and one end of the two groups of steel wires is connected through the hooks; one group of hooks is located on the same plane as the end of the drag chain and the cross beam.

4. The drag-external follow-up type chain drag support mechanism according to claim 3, wherein The drag chain support assembly further comprises a group of second drag chain supports located at the middle part, the first drag chain supports and the second drag chain supports are arranged in parallel, the three groups of drag chain supports are in H-shaped, the bottom part is matched with the V-shaped track through a V-shaped wheel, the top part of the second drag chain support is also provided with a carrier roller, and the drag chain supports are connected into an integrated structure through connecting beams.

5. The drag-external follow-up type chain drag support mechanism according to claim 1, wherein The steel wires comprise first steel wires and second steel wires, and one end of the first steel wires and the second steel wires is connected to the fixed plate through a tensioning shaft.

6. The drag-external follow-up type chain drag support mechanism according to claim 1, wherein Each pair of pulley blocks comprises an upper pulley and a lower pulley, and the pulley blocks are located on the outer side of the track; the steel wires pass through the lower pulley, pass through the pulley blocks between the upper pulley and the lower pulley, and are connected to the cross beam.

7. The drag-external follow-up type chain drag support mechanism according to claim 2, wherein The pulley blocks are located on the same side of the two groups of first drag chain supports, so that the planes where the two groups of steel wires are located are located on the outer side of the track.

8. The drag-external follow-up type chain drag support mechanism according to claim 2, wherein The track is fixed on the ground.

9. The drag-external follow-up type chain support mechanism according to claim 8, wherein A wire slot is arranged below the shroud.

10. The drag-external follow-up type chain support mechanism according to claim 9, wherein The distance between the two pairs of V-shaped tracks is greater than the width of the drag chain.

Images