Rolling mill chain adjusting mechanism

Abstract

The utility model discloses a rolling mill chain adjusting mechanism which solves the technical problem that in the prior art, a chain is too loose, so that maintenance spends much time, and economic losses are caused. The rolling mill chain adjusting mechanism comprises a supporting piece, a rotating shaft and a rotating wheel. A strip-shaped hole is formed in the supporting piece. The rotating shaft is arranged at one end of the supporting piece and is perpendicular to the supporting piece. The rotating wheel is rotatably arranged on the rotating shaft, and an annular groove used for containing a chain is formed in the outer ring wall of the rotating wheel. The sagging degree of the chain can be greatly reduced, so that the length of the meshing position of the chain and the chain wheel can be kept within a certain range, and stable meshing of the chain and the chain wheel is guaranteed; and the rolling mill chain adjusting mechanism can be rapidly installed at the preset position, the installation time is short, and the situation that the chain is too loose can be relieved without long-time shutdown operation.

Description

Technical Field

[0001] The present application belongs to the technical field of chain transmission equipment, and specifically relates to a rolling mill chain adjustment mechanism. Background Art

[0002] Rolling mills, widely used in the metallurgical industry, often utilize chain drives. Chain drives primarily consist of a motor, reducer, sprocket, and chain. While simple in structure and highly efficient, the chain can become loose and slip over time due to prolonged, high-load operation and seasonal thermal expansion and contraction. This is commonly referred to in the industry as "chain slack."

[0003] A loose chain has a great impact on the rolling mill equipment itself and production. Its hazards include the following aspects:

[0004] 1. Increased wear. A chain that is too loose will cause the chain to swing, which will increase the friction between the chain and the gears and accelerate the wear of the chain.

[0005] 2. Increase the failure rate. A chain that is too loose may cause the chain to fall off or break, causing the machine to malfunction and even cause an accident.

[0006] 3. Affecting product quality: A loose chain causes the rolling mill's pressing force on the steel to fluctuate, resulting in uneven thickness of the produced plates.

[0007] However, there are multiple chains in the rolling mill, and stopping the mill for maintenance of a single chain will consume a lot of time and cause great economic losses. Summary of the Invention

[0008] In order to solve the current technical problem that maintenance caused by a loose chain will take a long time and cause economic losses, the present application provides a rolling mill chain adjustment mechanism.

[0009] In a first aspect of the present application, a rolling mill chain adjustment mechanism is provided, comprising:

[0010] A support member, wherein the support member is provided with a strip-shaped hole;

[0011] A rotating shaft is provided at one end of the support member, and the rotating shaft is provided perpendicular to the support member;

[0012] The rotating wheel is rotatably arranged on the rotating shaft, and the outer ring wall of the rotating wheel is provided with an annular groove for accommodating the chain.

[0013] In some embodiments, the support member is columnar.

[0014] In some embodiments, the length direction of the strip-shaped hole is parallel to the length direction of the support member.

[0015] In some embodiments, the support member is further provided with a plurality of positioning holes along its length direction, and the plurality of positioning holes are all connected to the strip-shaped hole.

[0016] In some embodiments, the positioning hole is connected to the strip-shaped hole through a connecting hole, and the angle between the direction of the connecting hole and the length direction of the strip-shaped hole is an acute angle.

[0017] In some embodiments, the support member is provided with two groups of positioning holes connected to the strip-shaped hole through a connecting hole, the two groups of positioning holes are respectively located on both sides of the strip-shaped hole, and the directions of the two groups of connecting holes are consistent.

[0018] In some embodiments, the length of the rotating shaft is greater than the length of the rotating wheel so that the distance between the rotating wheel and the support member is adjustable.

[0019] In some embodiments, an external thread is provided at one end of the rotating shaft close to the support member, an adjustment block is sleeved on the rotating shaft, the adjustment block is provided with a coaxially arranged through hole and an internal thread, the internal thread is threadedly connected to the external thread of the rotating shaft, the through hole is located at the end of the adjustment block away from the support member, and the inner diameter of the through hole is larger than the diameter of the rotating shaft.

[0020] In some embodiments, a plug is detachably provided at one end of the rotating shaft away from the support member.

[0021] In some embodiments, a rib is provided between the support member and the rotating shaft.

[0022] The rolling mill chain adjustment mechanism provided according to one or more embodiments of the present application can significantly reduce the sagging of the chain, so that the length of the meshing point between the chain and the sprocket can be maintained within a certain range, ensuring stable meshing of the chain and the sprocket; and the rolling mill chain adjustment mechanism can be quickly installed in a preset position, with a short installation time, and the situation of the chain being too loose can be alleviated without long-term shutdown operations; and the height of the runner is adjustable compared to the chain, and can be adapted to chains with different degrees of looseness or the height of the runner can be adjusted again after a period of time, so that the rolling mill chain adjustment mechanism can have a better adjustment effect on the chain sagging during a longer rolling mill service life, thereby ensuring stable operation of the rolling mill during the service life and reducing the failure rate of the rolling mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a rolling mill chain adjustment mechanism in one or more embodiments of the present application is shown.

[0024] Figure 2 Shown Figure 1 Middle AA section view.

[0025] Figure 3 Shown Figure 1 Usage status structure diagram.

[0026] Figure 4 A schematic structural diagram of a rolling mill chain adjustment mechanism in one or more embodiments of the present application is shown.

[0027] Figure 5 Shown Figure 4 Middle BB section view.

[0028] Figure 6 Shown Figure 4 Another diagram of the usage state structure.

[0029] Explanation of the reference numerals: 1-sprocket, 2-chain, 3-support member, 31-bar hole, 32-positioning hole, 33-communication hole, 34-connecting hole, 4-rotating shaft, 5-rotating wheel, 51-annular groove, 6-adjusting block, 61-through hole, 7-plug, 8-screw. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to understand the present application more clearly, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of this application.

[0031] See also Figure 1-6 In a first embodiment of the present application, a rolling mill chain 2 adjustment mechanism is provided, comprising a support member 3, a rotating shaft 4, and a runner 5. The rotating shaft 4 is disposed at one end of the support member 3 and is disposed perpendicular to the support member 3. The runner 5 is rotatably disposed on the rotating shaft 4. The outer ring wall of the runner 5 is provided with an annular groove 51 for accommodating the chain 2.

[0032] Due to the characteristics of the chain 2, the axis of the rotating shaft 4 of the sprocket 1 of the rolling mill is set horizontally, so that even if the chain 2 appears to be "too loose", the chain 2 is not likely to fall off from the sprocket 1.

[0033] The support member 3 is a basic component supporting the rotating shaft 4 and the rotating wheel 5. A strip-shaped hole 31 is provided on the support member 3. By providing a screw 8 and passing the bolt through the strip-shaped hole 31 and connecting it with a pre-set screw hole, the support member 3 can be set at a preset position. The preset position can be located at a position on the rolling mill or at a suitable position on an additional bracket. The pre-set screw hole is a screw hole pre-drilled at the preset position. To accommodate the chain 2 at different positions on the rolling mill, the rolling mill or bracket can have multiple preset positions.

[0034] The rotating shaft 4 is perpendicular to the support 3, and the runner 5 is rotatably set on the rotating shaft 4. When the support 3 is installed on the side wall of the rolling mill, the moving path of the chain 2 is perpendicular to the rotating shaft 4. This makes it possible for the annular groove 51 to limit the chain 2 when part of the chain 2 is placed in the annular groove 51, so that the chain 2 can maintain contact with the runner 5, and the runner 5 will not affect the movement of the chain 2. Even if there is friction between the chain 2 and the runner 5, the friction force will only drive the runner 5 to rotate, and will not affect the movement of the chain 2.

[0035] The position between the strip hole 31 and the screw 8 can be changed, which can greatly reduce the difficulty of installing the rolling mill chain 2 adjustment mechanism, so that the support 3 can be smoothly set on the rolling mill without affecting the operation of other mechanisms on the rolling mill, and by adjusting the position of the strip hole 31 and the preset screw hole, the relative position between the wheel 5 and the chain 2 can also be changed, so that the rolling mill chain 2 adjustment mechanism can cope with chains 2 of various specifications.

[0036] See also Figure 1-Figure 3 When using the rolling mill chain 2 adjustment mechanism, after installing the support member 3 in the preset position, the chain 2 of the next layer is placed in the annular groove 51 at the top of the runner 5, which is equivalent to the rolling mill chain 2 adjustment mechanism lifting the chain 2. Compared with the chain 2 of the next layer, which sags due to the chain 2 being too loose and causes the length of the chain 2 meshing with the sprocket 1 to become shorter, the rolling mill chain 2 adjustment mechanism can greatly slow down the sagging degree of the chain 2, thereby making the length of the meshing portion of the chain 2 and the sprocket 1 remain within a certain range, ensuring the stability of the chain 2 and the sprocket 1. Fixed engagement; and the rolling mill chain 2 adjustment mechanism can be quickly installed in the preset position, the installation time is short, and the situation of the chain 2 being too loose can be alleviated without long-term shutdown operations; and the height of the runner 5 is adjustable compared to the chain 2, which can be adapted to different degrees of chain 2 that is too loose or the height of the runner 5 can be adjusted again after a period of time, so that the rolling mill chain 2 adjustment mechanism can have a better adjustment effect on the sagging of the chain 2 within a longer rolling mill service life, thereby ensuring the stable operation of the rolling mill within the service life and reducing the failure rate of the rolling mill.

[0037] In some embodiments, the support member 3 may be plate-shaped, with a plurality of connection holes 34 provided on the plate-shaped support member 3. Screws 8 are connected to the rolling mill sidewall or an additional bracket through the connection holes 34, thereby improving the stability of the rolling mill chain 2 adjustment mechanism and the support member 3's ability to support the rotating shaft 4. The connection holes 34 are also strip-shaped holes 31. Of course, in some implementations, the support member 3 may be columnar. A columnar support member 3 is narrower, requiring less stringent installation requirements. Furthermore, a columnar support member 3 is thicker, providing greater support for the rotating shaft 4.

[0038] In some embodiments, see Figure 1The length direction of the strip hole 31 is parallel to the length direction of the support member 3, so that a longer strip hole 31 can be set on the columnar support member 3 of the same width, thereby increasing the height adjustment range of the rolling mill chain 2 adjustment mechanism and improving the adaptability of the rolling mill chain 2 adjustment mechanism.

[0039] See also Figure 4 and Figure 5 In some embodiments, the support member 3 is further provided with a plurality of positioning holes 32 along its length, and the plurality of positioning holes 32 are all connected to the strip-shaped hole 31. During use of the rolling mill, the screws 8 may become loose, causing the relative position between the support member 3 and the screws 8 to change. Therefore, by providing a plurality of positioning holes 32, when the support member 3 is installed, the screws 8 are matched with the positioning holes 32. Therefore, during use, even if the screws 8 become loose, the relative position between the support member 3 and the screws 8 will not change, thereby reducing the failure rate.

[0040] In some embodiments, the positioning hole 32 is connected to the strip-shaped hole 31 through the connecting hole 33 , and the angle between the direction of the connecting hole 33 and the length direction of the strip-shaped hole 31 is an acute angle.

[0041] It can be understood that when the screw 8 sets the support member 3 in the preset position, the opening of the strip hole 31 faces the lower side. When the screw 8 is loosened, under the action of gravity, the screw 8 will maintain contact with the positioning hole 32 and will not be able to move to the strip hole 31. The adjustment mechanism of the rolling mill chain 2 will remain set in the preset position, further improving the safety of the adjustment mechanism of the rolling mill chain 2 when in use.

[0042] When installing the rolling mill chain 2 adjustment mechanism, considering the limitations of the installation position, sometimes the support member 3 is located below the runner 5. It should be noted that the below is not directly below. Figure 6 In some embodiments, the support member 3 is provided with two groups of positioning holes 32 that communicate with the strip-shaped hole 31 through a connecting hole 33. The two groups of positioning holes 32 are located on either side of the strip-shaped hole 31, and the two groups of connecting holes 33 have the same orientation. This allows the support member 3 to be positioned below the rotating wheel 5. Even if the screw 8 becomes loose, gravity allows the screw 8 to maintain contact with the positioning holes 32 for a period of time. However, as the operation time increases, the tightness of the connection between the screw 8 and the preset position decreases, and there is a risk that the support member 3 may rotate around the screw 8. Therefore, a plurality of connecting holes 34 may be provided on the support member 3. The support member 3 is further locked in the preset position by the engagement of bolts with the connecting holes 34, so that when the support member 3 is positioned below the rotating wheel 5, the connection between the support member 3 and the preset position is even tighter.

[0043] In some embodiments, the length of the rotating shaft 4 is greater than the length of the rotating wheel 5 so that the distance between the rotating wheel 5 and the support member 3 is adjustable, thereby further improving the adaptability of the adjustment mechanism of the rolling mill chain 2.

[0044] Specifically, see Figure 4 and Figure 5 In some embodiments, an external thread is provided at one end of the rotating shaft 4 close to the support member 3, and an adjustment block 6 is sleeved on the rotating shaft 4. The adjustment block 6 is provided with a coaxial through hole 61 and an internal thread, and the internal thread is threadedly connected to the external thread of the rotating shaft 4. The through hole 61 is located at the end of the adjusting block 6 away from the support member 3, and the inner diameter of the through hole 61 is larger than the diameter of the rotating shaft 4. During use, the position of the adjusting block 6 on the rotating shaft 4 can be changed by rotating the adjusting block 6 clockwise or counterclockwise, that is, the distance between the rotating wheel 5 and the support member 3 is changed.

[0045] In some embodiments, a plug 7 is detachably provided at one end of the rotating shaft 4 away from the supporting member 3 , so that the rotating wheel 5 can remain located on the rotating shaft 4 .

[0046] In some embodiments, a rib plate is provided between the support member 3 and the rotating shaft 4 to improve the tightness of the connection between the rotating shaft 4 and the support member 3, improve the strength of the entire high rolling mill chain 2 adjustment mechanism, reduce the possibility of deformation of the high rolling mill chain 2 adjustment mechanism during long-term use, and improve the service life of the rolling mill chain 2 adjustment mechanism.

[0047] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0048] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0049] In this application, unless otherwise specified or limited, the terms "connect," "fix," etc. should be understood broadly. For example, "fix" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0050] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0051] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A rolling mill chain adjustment mechanism, characterized in that: include: A support member, wherein the support member is provided with a strip-shaped hole; A rotating shaft is provided at one end of the support member, and the rotating shaft is provided perpendicular to the support member; The rotating wheel is rotatably arranged on the rotating shaft, and the outer ring wall of the rotating wheel is provided with an annular groove for accommodating the chain.

2. The rolling mill chain adjustment mechanism according to claim 1, characterized in that: The supporting member is column-shaped.

3. The rolling mill chain adjustment mechanism according to claim 2, characterized in that: The length direction of the strip-shaped hole is parallel to the length direction of the support member.

4. The rolling mill chain adjustment mechanism according to claim 1, characterized in that: The support member is further provided with a plurality of positioning holes along its length direction, and the plurality of positioning holes are all communicated with the strip-shaped hole.

5. The rolling mill chain adjustment mechanism according to claim 4, characterized in that: The positioning hole is connected to the strip-shaped hole through a connecting hole, and an angle between the direction of the connecting hole and the length direction of the strip-shaped hole is an acute angle.

6. The rolling mill chain adjustment mechanism according to claim 5, characterized in that: The support member is provided with two groups of positioning holes connected with the strip-shaped hole through a communicating hole. The two groups of positioning holes are respectively located on both sides of the strip-shaped hole, and the directions of the two groups of communicating holes are consistent.

7. The rolling mill chain adjustment mechanism according to claim 1, characterized in that: The length of the rotating shaft is greater than the length of the rotating wheel so that the distance between the rotating wheel and the supporting member is adjustable.

8. The rolling mill chain adjustment mechanism according to claim 7, characterized in that: An external thread is provided at one end of the rotating shaft close to the support member, an adjustment block is sleeved on the rotating shaft, the adjustment block is provided with a coaxial through hole and an internal thread, the internal thread is threadedly connected to the external thread of the rotating shaft, the through hole is located at the end of the adjusting block away from the support member, and the inner diameter of the through hole is larger than the diameter of the rotating shaft.

9. The rolling mill chain adjustment mechanism according to any one of claims 1 to 8, characterized in that: A plug is detachably provided on one end of the rotating shaft away from the supporting member.

10. The rolling mill chain adjustment mechanism according to any one of claims 1 to 8, characterized in that: A rib plate is provided between the support member and the rotating shaft.

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