Chain tensioning and adjustment breakage protection device

Abstract

The application discloses a chain tensioning adjustment anti-breaking protection device, which comprises a chain, a bridge, a first screw rod, at least two connecting holes arranged around the mounting seat, a second screw rod, an adjusting sleeve, at least two load screw rods and a tray. The chain is mounted on the mounting seat. The outer threads of the first screw rod and the second screw rod are opposite in rotation direction. The first screw rod and the second screw rod are respectively inserted into the two ends of the adjusting sleeve. The outer threads of the first screw rod and the second screw rod are respectively engaged with the inner threads of the two ends of the adjusting sleeve. The load screw rods are installed on the tray through the connecting holes. The device can conveniently and quickly adjust the tensioning chain. The adjustment function and the stress function are separately designed, and the separate parts realize the separate functions, thereby prolonging the service life of the whole device.

Description

Technical Field

[0001] This invention relates to the field of steel production, and in particular to a chain tension adjustment and anti-breakage protection device. Background Technology

[0002] Currently, the pallet devices used for receiving steel in wire rod production lines, such as Figure 1 As shown, the adjusting screw 7 used to adjust the chain tension is a standard M36 right-hand screw. Two adjusting nuts 71 lock the adjusting screw 7 to achieve both chain tension adjustment and chain locking. Figure 1 As shown. This design means that the adjusting screw 7 of M36 must both adjust the tension and withstand the tension of the chain during operation. During production, M36 adjusting screw breakage accidents frequently occur. At the same time, due to prolonged tension, the adjusting nut 71 and adjusting screw 7 deform and jam, causing the tension adjustment device to fail and become unusable. Summary of the Invention

[0003] The purpose of this invention is to provide a chain tension adjustment and anti-breakage protection device that enables convenient and quick adjustment of the tensioned chain while separating the adjustment function and the force-bearing function, with each part performing its own function, thereby improving the service life of the entire device.

[0004] A chain tension adjustment and anti-breakage protection device includes: a chain; a bridge frame, the bridge frame having a mounting base, a first screw, and at least two connecting holes surrounding the mounting base; a second screw, the second screw being mounted on a tray; an adjusting sleeve, the adjusting sleeve having internal threads with opposite directions at both ends; and at least two load screws; wherein the chain is mounted on the mounting base, the external threads of the first screw and the second screw have opposite directions, the first screw and the second screw are respectively inserted into the two ends of the adjusting sleeve, the external threads of the first screw and the second screw respectively engage with the internal threads at both ends of the adjusting sleeve, and the load screws are mounted on the tray through the connecting holes.

[0005] In one embodiment, the mounting base is provided with a mounting hole, and the chain includes a pin and two chain plates, the pin passing through the mounting hole to connect the two chain plates.

[0006] In one embodiment, the bridging is U-shaped, and the central protrusion of the U-shape is the mounting base.

[0007] In one embodiment, each of the two convex-shaped wing platforms is provided with a set of the connecting holes, and each set includes at least one of the connecting holes.

[0008] In one embodiment, a first nut is fitted onto the first screw, and the first nut tightens the first nut and the adjusting sleeve; or / and, a second nut is fitted onto the second screw, and the second nut tightens the second nut and the adjusting sleeve; or / and, a locking nut is fitted onto the load screw, and the locking nut locks the load screw to the tray.

[0009] In one embodiment, the bottom of the cable tray is provided with a first screw hole, the first screw is a double-ended screw, and one end of the first screw is tightened into the first screw hole; or / and, the second screw is a double-ended screw, and one end of the second screw is tightened into the tray.

[0010] In one embodiment, the load screw includes a smooth section and a threaded section, the smooth section slidingly engaging with the mounting hole, and the threaded section being tightened onto the tray.

[0011] A chain tensioning method includes the following steps: S1, the chain is installed on the mounting base of the cable tray; S2, the first screw and the second screw of the cable tray are screwed into the two ends of the adjusting sleeve; S3, the load screw passes through the connecting hole of the cable tray and is screwed into the threaded hole of the tray; S4, the adjusting sleeve is rotated to adjust the chain to the tension range required for assembly; S5, the tightness of the load screw is adjusted so that the load screw bears the load of the tensioned chain; wherein, S3 can be after S4 and before S5, and S1 can be after S2 or after S3 and before S4.

[0012] In one embodiment, the chain tensioning method further includes the steps of: after the chain is working normally, it is relaxed; the adjusting sleeve is rotated to tension the chain to the tension range required for assembly; and the load screw is further screwed into the tray so that the load screw bears the load of the tensioned chain.

[0013] In one embodiment, the chain tensioning method further includes the steps of: before S4, screwing a first screw into a first screw hole and screwing a second screw into a second screw hole on the tray; or the steps of: after S4, tightening a first nut and a second nut to lock the positions of the adjusting sleeve, the first screw, and the second screw; or the steps of: after S5, using a locking nut to lock the load screw to the tray.

[0014] Compared with the prior art, the advantages of the chain tension adjustment and anti-breakage protection device of the present invention are as follows:

[0015] 1. The adjusting sleeve, first screw, and second screw are used to tension the chain and adjust its tension. After adjustment, during production, the load screw mainly bears the chain load. The load screw can withstand a larger load than the adjusting sleeve, and multiple load screws can be used to distribute the load, making it more durable. Thus, this invention separates tension adjustment and load bearing by the adjusting sleeve and load screw, allowing for precise tension adjustment while resisting work load fatigue and improving the overall service life of the device.

[0016] 2. The first screw and the cable tray are detachable, and the second screw and the tray are detachable, which facilitates maintenance and replacement.

[0017] 3. The cable tray can slide on the light section of the load screw through the connecting holes. The load screw provides support for the cable tray and the adjusting screw sleeve, protecting the adjusting screw sleeve, the first screw and the second screw. The tension chain can be adjusted online without interrupting production.

[0018] The invention will become clearer from the following description, taken in conjunction with the accompanying drawings, which are used to explain embodiments of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of an existing chain tensioning device;

[0021] Figure 2 This is a front view schematic diagram of the chain tension adjustment and anti-breakage protection device according to an embodiment of the present invention;

[0022] Figure 3 This is a side view of the chain tension adjustment and anti-breakage protection device according to an embodiment of the present invention;

[0023] Figure 4 This is a top view schematic diagram of the chain tension adjustment and anti-breakage protection device according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the cable tray structure in an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the adjusting screw sleeve in an embodiment of the present invention.

[0026] Among them, 1. chain, 11. pin, 12. chain plate, 2. bridge frame, 21. mounting base, 22. mounting hole, 23. connecting hole, 24. first screw, 25. first nut, 26. first screw hole, 3. second screw, 31. second nut, 32. fixing nut, 4. adjusting screw sleeve, 41. internal thread, 5. load screw, 51. smooth section, 52. threaded section, 53. locking nut, 6. tray, 7. double screw, 71. adjusting nut. Detailed Implementation

[0027] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0028] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for 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 invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] like Figure 2-6 As shown, the chain tension adjustment and anti-breakage protection device of this embodiment includes: chain 1; bridge frame 2, the bridge frame 2 is provided with mounting base 21, first screw 24, and at least two connecting holes 23 arranged around the mounting base 21; second screw 3, the second screw 3 is installed on the tray 6; adjusting screw sleeve 4, the two ends of the adjusting screw sleeve 4 are provided with internal threads 41 with opposite directions of rotation; at least two load screws 5; wherein, chain 1 is installed on mounting base 21, the external threads of the first screw 24 and the second screw 3 have opposite directions of rotation, the first screw 24 and the second screw 3 are respectively inserted into the two ends of adjusting screw sleeve 4, the external threads of the first screw 24 and the second screw 3 respectively mesh with the internal threads 41 at both ends of adjusting screw sleeve 4, and the load screws 5 are installed on the tray 6 through the connecting holes 23.

[0031] The adjusting sleeve 4, the first screw 24, and the second screw 3 are used to tension the chain 1 and adjust its tension. After adjustment, during production, the load screw 5 mainly bears the load of the chain 1. The load screw 5 can withstand a larger load than the adjusting sleeve 4, and multiple load screws 5 can be set to share the load, making it more durable. Thus, this invention separates the adjustment of tension and the bearing of working load by the adjusting sleeve 4 and the load screw, which can accurately adjust the tension and resist working load fatigue, thereby improving the service life of the entire device.

[0032] The bridge is shaped like a convex character, with the central convex part being the mounting base 21. The mounting base 21 has mounting holes 22. The chain 1 includes a pin 11 and two chain plates 12, with the pin 11 passing through the mounting holes 22 to connect the two chain plates 12. Each of the two wing platforms of the convex shape has a set of connecting holes 23, each set including at least one connecting hole 23. The mounting base 21 protrudes relative to the rest of the cable tray 2, and the mounting holes 22 are higher than the connecting holes 23, ensuring that the pin 11 and the load screw 5 do not interfere with each other, facilitating the installation of the chain 1 and the load screw 5. In this embodiment, each side of the mounting base 21 has a connecting hole 23, and each connecting hole 23 is equipped with a load screw 5 to balance the force on the cable tray 2 and reduce wear. However, this embodiment is not limited to this one; three or more load screws 5 can also be arranged around the mounting base 21, the number selected according to the on-site load conditions. Preferably, the load screws 5 are evenly distributed around the mounting base 21.

[0033] The load screw 5 includes a smooth section 51 and a threaded section 52. The smooth section 51 slides into the mounting hole 22, and the threaded section 52 is tightened onto the tray 6. When adjusting the tension of the chain 1 by rotating the adjusting sleeve 4, the load screw 5 can be pre-installed on the tray 6. The cable tray 2 can slide on the smooth section 51 of the load screw 5 through the connecting hole 23, providing support for the cable tray 2 and the adjusting sleeve 4 and protecting the adjusting sleeve 4.

[0034] A first nut 25 is fitted onto the first screw 24, which can tighten the first nut 25 and the adjusting sleeve 4. A second nut 31 is fitted onto the second screw 3, which can tighten the second nut 31 and the adjusting sleeve 4. After adjusting the tension of the chain 1 by rotating the adjusting sleeve 4, the first nut 25 and the second nut 31 lock the adjusting sleeve 4, thus locking the tension of the chain 1 and preventing the adjusting sleeve 4 from loosening.

[0035] A locking nut 53 is fitted onto the load screw 5, which locks the load screw 5 to the tray 6. After tightening the load screw 5, the locking nut secures the load screw 5 to the tray 6 to prevent it from loosening. In this embodiment, the tray 6 has a threaded hole that mates with the load screw 5. The load screw 5 passes through the threaded hole of the tray 6, and two locking nuts are provided on the load screw 5, which lock the load screw 5 from both sides of the tray.

[0036] The first screw 24 and the cable tray 2 are detachable, as are the second screw 3 and the tray 6, facilitating maintenance and replacement. The bottom of the cable tray 2 has a first screw hole 26. The first screw 24 is a double-ended screw, with one end tightened into the first screw hole 26. The second screw 3 is also a double-ended screw. The tray 6 has a threaded hole that mates with the second screw 3. One end of the second screw 3 is tightened into the threaded hole of the tray 6. Two fixing nuts 32 are provided on the second screw 3, locking it in place from both sides of the tray 6.

[0037] A chain tensioning method according to this embodiment includes the following steps:

[0038] S1. Chain 1 is installed on mounting base 21 of cable tray 2. Specifically, pin 11 is passed through mounting hole 22 to connect two chain plates 12, so that chain 1 is installed on mounting base 21.

[0039] Before S2, the first screw 24 and the second screw 3 are installed. Specifically, the first screw 24 is installed in the first screw hole 26, and the second screw 3 is installed in the corresponding threaded hole on the tray 6 and locked with the fixing nut 32.

[0040] S2, the first screw 24 and the second screw 3 of the cable tray 2 are screwed into both ends of the adjusting sleeve 4;

[0041] S3, the load screw 5 passes through the connecting hole 23 of the cable tray 2 and is screwed into the threaded hole of the tray 6;

[0042] Before S4, the first screw 24 is screwed into the first screw hole 26, and the second screw 3 is screwed into the second screw hole of the tray 6;

[0043] S4. Rotate the adjusting screw sleeve 4 to adjust the chain 1 to the tension range required for assembly.

[0044] After S4, tightening the first nut 25 and the second nut 31 will lock the positions of the adjusting sleeve 4, the first screw 24 and the second screw 3.

[0045] S5. Adjust the tightness of the load screw 5 so that the load screw 5 bears the load of the tension chain 1;

[0046] After S5, use lock nut 53 to lock the load screw 5 to the tray 6;

[0047] Among them, S3 can be after S4 and before S5, and S1 can be after S2 or S3 and before S4.

[0048] The chain 1 tensioning method in this embodiment further includes the following steps: after the chain 1 has been working normally and has become loose, the adjusting sleeve 4 is rotated to tension the chain 1 to the tension range required for assembly, and the load screw 5 is further screwed into the tray 6 so that the load screw 5 bears the load of tensioning the chain 1. In this way, the cable tray 2 can slide on the optical section 51 of the load screw 5 through the connecting hole 23. The load screw 5 provides support for the cable tray 2 and the adjusting sleeve 4, protecting the adjusting sleeve 4, the first screw 24 and the second screw 3, and the chain 1 can be tensioned online without interrupting production.

[0049] The steps of the chain 1 tensioning method described in this embodiment can be arbitrarily interspersed within the feasible range.

[0050] This invention designs a cable tray 2 and a load screw 5, and installs the chain 1 on the cable tray 2. The chain 1 is tensioned by rotating the adjusting sleeve 4. After the tension of the chain 1 is adjusted, the load screw 5 is loaded by adjusting the tightness of the load screw 5, which protects the adjusting sleeve 4.

[0051] The present invention has been described above in conjunction with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations made in accordance with the essence of the present invention.

Claims

1. A chain tension adjustment and anti-breakage protection device, characterized in that, include: Chain; The cable tray is provided with a mounting base, a first screw, and at least two connection holes arranged around the mounting base; The second screw is mounted on the tray; An adjusting screw sleeve, wherein the two ends of the adjusting screw sleeve are provided with internal threads in opposite directions; At least two load screws; The chain is mounted on the mounting base. The external threads of the first screw and the second screw have opposite directions of rotation. The first screw and the second screw are respectively inserted into both ends of the adjusting sleeve. The external threads of the first screw and the second screw respectively engage with the internal threads at both ends of the adjusting sleeve. The load screw passes through the connecting hole and is mounted on the tray. The mounting base has mounting holes. The chain includes a pin and two chain plates. The pin passes through the mounting holes to connect the two chain plates. The bridge frame is U-shaped. The central convex part of the U-shape is the mounting base. Each of the two wing platforms of the U-shape is equipped with... A set of connecting holes, each set including at least one connecting hole; a first nut is fitted on the first screw, the first nut tightening the first nut and the adjusting sleeve; a second nut is fitted on the second screw, the second nut tightening the second nut and the adjusting sleeve; a locking nut is fitted on the load screw, the locking nut locking the load screw to the tray; a first screw hole is provided at the bottom of the cable tray; the first screw is a double-ended screw, one end of the first screw is tightened into the first screw hole; the second screw is a double-ended screw, one end of the second screw is tightened into the tray.

2. The chain tension adjustment and anti-breakage protection device according to claim 1, characterized in that, The load screw includes a smooth section and a threaded section. The smooth section slides into the mounting hole, and the threaded section is tightened onto the tray.

3. A chain tensioning method for the chain tensioning adjustment and anti-breakage protection device according to claim 1, characterized in that, Including the following steps: S1. The chain is installed on the mounting bracket of the cable tray; S2. The first and second screws of the cable tray are screwed into both ends of the adjusting sleeve; S3. The load screw passes through the connecting hole of the cable tray and is screwed into the threaded hole of the tray; S4. Rotate the adjusting sleeve to adjust the chain to the required tension range for assembly. S5. Adjust the tightness of the load screw so that the load screw can bear the load of the tension chain.

4. The chain tensioning method according to claim 3, characterized in that, It also includes the following steps: After the chain relaxes during normal operation, rotate the adjusting sleeve to tighten the chain to the tension range required for assembly, and continue to screw the load screw into the tray so that the load screw bears the load of the tensioned chain.

5. A chain tensioning method according to claim 3, characterized in that, It also includes the steps of: before S4, screwing the first screw into the first screw hole and screwing the second screw into the second screw hole of the tray.

6. A chain tensioning method according to claim 3, characterized in that, It also includes the step of: after S4, tightening the first nut and the second nut to lock the positions of the adjusting sleeve, the first screw and the second screw.

7. A chain tensioning method according to claim 3, characterized in that, It also includes the step of: after S5, locking the load screw to the tray with a lock nut.

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