Guide wheel mechanism not prone to abrasion

Abstract

The utility model discloses a wear-resistant guide wheel mechanism, which belongs to the technical field of steel strip cold rolling and comprises a bottom plate, a synchronous lifting mechanism is mounted at the top of a transverse plate body of the bottom plate, two guide wheels are mounted on the left side and the right side of the top of the synchronous lifting mechanism respectively, and guide wheel wear-resistant mechanisms are mounted on the two guide wheels. The guide wheel anti-abrasion mechanism comprises guide wheel protection assemblies and a quick dismounting and mounting assembly, the multiple guide wheel protection assemblies are installed on the outer side of each guide wheel, the quick dismounting and mounting assembly is installed on the top of each guide wheel, and the guide wheel protection assemblies are connected with the quick dismounting and mounting assemblies. The steel belt can be prevented from being in direct contact with the surface of the guide wheel through the guide wheel protection assembly, so that the service life of the guide wheel is prolonged, and the guide wheel protection assembly can be fixed and unlocked through the quick disassembly and assembly assembly; the two guide wheels can simultaneously lift up and down at a constant speed through the synchronous lifting mechanism, and notches of the guide wheels caused by long-time point-line contact between the guide wheels and the side face of the steel belt are avoided.

Description

Technical Field

[0001] This utility model relates to the field of cold rolling technology of steel strip, specifically to a guide wheel mechanism that is not easily worn. Background Technology

[0002] Cold-rolled steel strip is obtained by further rolling hot-rolled steel strip at room temperature. It has good surface quality, high dimensional accuracy, and good mechanical and technological properties.

[0003] Chinese patent CN202861002U discloses a cold-rolled steel strip guiding mechanism, including two guiding units disposed on both sides of the rolled steel strip. Each guiding unit includes a base and a cover plate mounted on the base. The base has at least one receiving groove for mounting guide wheels. The guide wheels are connected between the base and the cover plate via a rotating shaft, and bearings are installed at the connections between the rotating shaft and both the base and the cover plate. Both ends of the base have oblong holes. However, this device still has the following problems:

[0004] The side guide wheel and the steel belt have a relatively fixed contact position, which can easily cause wear at the contact position of the guide wheel, affecting the accuracy of the side limit during use.

[0005] Based on this, the present invention designs a wear-resistant guide wheel mechanism to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a guide wheel mechanism that is not easily worn.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A wear-resistant guide wheel mechanism includes a base plate. A synchronous lifting mechanism for controlling the up-and-down movement of the guide wheels is installed on the top of the horizontal plate of the base plate. Two symmetrical guide wheels are installed on the left and right sides of the top of the synchronous lifting mechanism. Each guide wheel is equipped with a guide wheel anti-wear mechanism to extend its service life. The guide wheel anti-wear mechanism includes a guide wheel protection component for protecting the guide wheel and a quick-release component for quickly replacing the guide wheel protection component. Multiple guide wheel protection components are installed on the outer side of each guide wheel, and a quick-release component is installed on the top of the guide wheel. The guide wheel protection component is connected to the quick-release component.

[0009] Furthermore, the synchronous lifting mechanism includes a drive assembly and a lifting assembly. The drive assembly and the lifting assembly are installed on the top of the horizontal plate of the base plate, and the two lifting assemblies are symmetrically installed on the left and right sides of the drive assembly.

[0010] Furthermore, the drive assembly includes a motor, a T-shaped reducer, and lead screws. The T-shaped reducer is fixedly installed at the top center of the horizontal plate of the base plate. The motor is fixedly installed at the front end of the T-shaped reducer, and the output end of the motor is fixedly connected to the input end of the T-shaped reducer. Two lead screws are respectively arranged on both sides of the T-shaped reducer, and the output end of the T-shaped reducer is fixedly connected to the end of the two lead screws that are close to each other. The ends of the two lead screws that are opposite to each other are respectively connected to two lifting components.

[0011] Furthermore, the lifting assembly includes a pushing wedge, a horizontal guide rail, a lifting wedge, and a vertical guide rail. The opposite ends of two lead screws are respectively inserted into the internal threads of the two pushing wedges. The two horizontal guide rails are fixedly installed on the top left and right sides of the horizontal plate of the base plate. The bottom of the two pushing wedges is respectively limited and slidably connected to the two horizontal guide rails. The two vertical guide rails are symmetrically fixedly installed on the inner sidewalls of the two vertical plates of the base plate. The opposite ends of the two lifting wedges are respectively limited and slidably connected to the two vertical guide rails. The top inclined surface of the pushing wedge on the same side is limited and slidably connected to the bottom inclined surface of the lifting wedge. Two guide wheels are rotatably installed on the top of the two lifting wedges.

[0012] Furthermore, the guide wheel protection assembly includes slots and protective plates. Multiple slots are provided on the outer ring of the top edge of the guide wheel, and protrusions on the inner side of multiple protective plates are respectively inserted into multiple slots. The slots are non-through slots.

[0013] Furthermore, multiple slots are evenly distributed in a circular pattern at equal intervals on the top of the guide wheel.

[0014] Furthermore, the outer side of the protective plate is coated with a wear-resistant material, and the inner side of the protective plate that is in contact with the guide wheel is made of rubber.

[0015] Furthermore, the quick-release assembly includes a fixing ring, fixing blocks, a sliding groove, a sliding baffle, and a return spring. The fixing ring is fixedly installed at the top center of the guide wheel, and multiple fixing blocks are fixedly installed at the top edge of the guide wheel. The multiple fixing blocks are distributed at equal intervals around the top of the guide wheel. A through sliding groove is provided in the center of the fixing block, and a sliding baffle is slidably connected within the sliding groove. The outer end of the return spring is fixedly connected to the inner end of the sliding baffle, and the inner end of the return spring is fixedly connected to the outer wall of the fixing ring. The bottom surface of the sliding baffle is slidably connected to the top surface of the protective plate, and the outer end of the sliding baffle can slide to cover the top opening of the slot.

[0016] Compared with the prior art, the advantages of this utility model are as follows:

[0017] In this invention, the steel strip enters the rolling mill section after being drawn from the feed roller. Two guide rollers limit the steel strip on both sides, ensuring that the steel strip moves in a relatively centered position during rolling. A guide roller protection component on the guide rollers prevents direct contact between the steel strip and the guide roller surface, thus extending the service life of the guide rollers. A quick-release assembly allows for fixing and unlocking of the guide roller protection component. When the guide roller protection component becomes worn, it can be released using the quick-release assembly, and the worn component can be removed. A synchronous lifting mechanism allows the two guide rollers to move up and down simultaneously at a uniform speed, preventing prolonged point-line contact between the guide rollers and the side of the steel strip, which could cause notches on the guide rollers. This further extends the service life of the guide rollers and ensures limiting accuracy, guaranteeing accurate centering of the steel strip. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of a wear-resistant guide wheel mechanism according to the present invention;

[0020] Figure 2 This is a front view of a wear-resistant guide wheel mechanism according to the present invention;

[0021] Figure 3 This is an exploded perspective view of a wear-resistant guide wheel mechanism according to the present invention.

[0022] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0023] The labels in the diagram represent:

[0024] 1. Base plate; 2. Guide wheel; 3. Guide wheel anti-wear mechanism; 31. Guide wheel protection assembly; 311. Slot; 312. Protective plate; 32. Quick disassembly assembly; 321. Fixing ring; 322. Fixing block; 323. Sliding groove; 324. Sliding baffle; 325. Return spring; 4. Synchronous lifting mechanism; 41. Motor; 42. T-type reducer; 43. Lead screw; 44. Push wedge; 45. Horizontal guide rail; 46. Lifting wedge; 47. Vertical guide rail. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0027] In some embodiments, please refer to the accompanying drawings. Figures 1-4 A wear-resistant guide wheel mechanism includes a base plate 1. A synchronous lifting mechanism 4 for controlling the up-and-down movement of guide wheels 2 is installed on the top of the horizontal plate of the base plate 1. Two symmetrical guide wheels 2 are installed on the left and right sides of the top of the synchronous lifting mechanism 4. Each guide wheel 2 is equipped with a guide wheel anti-wear mechanism 3 to extend the service life of the guide wheel 2. The guide wheel anti-wear mechanism 3 includes a guide wheel protection component 31 for protecting the guide wheel 2 and a quick-release component 32 for quickly replacing the guide wheel protection component 31. Multiple guide wheel protection components 31 are installed on the outer side of each guide wheel 2. The quick-release component 32 is installed on the top of the guide wheel 2, and the guide wheel protection component 31 is connected to the quick-release component 32.

[0028] In this invention, the steel strip enters the rolling mill section after being drawn out from the feed roller. Two guide rollers 2 limit the two sides of the steel strip, ensuring that the steel strip moves in a relatively centered position during rolling. The guide roller protection component 31 set on the guide roller 2 can prevent the steel strip from directly contacting the surface of the guide roller 2, thereby extending the service life of the guide roller 2. The guide roller protection component 31 can be fixed and unlocked by the quick-release component 32. When the guide roller protection component 31 is worn, it can be unlocked by the quick-release component 32 and the worn guide roller protection component 31 can be removed. The synchronous lifting mechanism 4 allows the two guide rollers 2 to move up and down at a uniform speed simultaneously, avoiding prolonged point-line contact between the guide rollers 2 and the side of the steel strip, which could cause notches in the guide rollers 2. This improves the service life of the guide rollers 2 and ensures the limiting accuracy, guaranteeing the accurate centering of the steel strip.

[0029] In some embodiments, the synchronous lifting mechanism 4 includes a drive assembly and a lifting assembly. The drive assembly and the lifting assembly are mounted on the top of the horizontal plate of the base plate 1, and the two lifting assemblies are symmetrically mounted on the left and right sides of the drive assembly.

[0030] Specifically, the drive assembly includes a motor 41, a T-type reducer 42, and lead screws 43. The T-type reducer 42 is fixedly installed on the top of the transverse plate of the base plate 1. The motor 41 is fixedly installed at the front end of the T-type reducer 42, and the output end of the motor 41 is fixedly connected to the input end of the T-type reducer 42. The two lead screws 43 are respectively located on both sides of the T-type reducer 42, and the output end of the T-type reducer 42 is fixedly connected to the end of the two lead screws 43 that is close to each other. The ends of the two lead screws 43 that are opposite to each other are respectively connected to two lifting assemblies.

[0031] The lifting assembly includes a push wedge 44, a horizontal guide rail 45, a lifting wedge 46, and a vertical guide rail 47. The threads on the two lead screws 43 are in opposite directions, and the opposite ends of the two lead screws 43 are respectively inserted into the internal threads of the two push wedges 44. The two horizontal guide rails 45 are respectively fixedly installed on the top left and right sides of the horizontal plate of the base plate 1. The bottom of the two push wedges 44 is respectively limited and slidably connected to the two horizontal guide rails 45. The two vertical guide rails 47 are symmetrically fixedly installed on the inner side walls of the two vertical plates of the base plate 1. The opposite ends of the two lifting wedges 46 are respectively limited and slidably connected to the two vertical guide rails 47. The top inclined surface of the push wedge 44 on the same side is limited and slidably connected to the bottom inclined surface of the lifting wedge 46. The two guide wheels 2 are respectively rotatably installed on the top of the two lifting wedges 46.

[0032] In this invention, when the two guide wheels 2 limit the two sides of the steel strip, the motor 41 drives the T-type reducer 42 to rotate, causing the lead screws 43 on both sides of the T-type reducer 42 to rotate simultaneously. The two pushing wedges 44 move in opposite directions along the horizontal guide rail 45 on the same side, and during the movement of the pushing wedges 44, they push the lifting wedges 46 to move upward along the vertical guide rail 47, so that the two guide wheels 2 rise at a constant speed. After the two guide wheels 2 have been running for a period of time, the motor 41 drives the two pushing wedges 44 to move in a closer direction, and the two lifting wedges 46 move downward, so that the two guide wheels 2 descend at a constant speed. Repeating the above operation avoids the outer side of the guide wheel 2 from being in direct point-to-line contact with the side of the steel strip for a long time, which would cause the guide wheel 2 to develop a notch.

[0033] In some embodiments, the guide wheel protection assembly 31 includes slots 311 and protective plates 312. Multiple slots 311 are provided on the top edge of the guide wheel 2. The multiple slots 311 are evenly distributed in a circumferentially spaced manner on the top of the guide wheel 2. Multiple protective plates 312 are sequentially contacted and connected to the outer circumferential wall of the guide wheel 2. The protrusions provided on the inner side of the multiple protective plates 312 are respectively inserted into the multiple slots 311. The outer side of the protective plates 312 is coated with a wear-resistant coating. The inner side of the protective plates 312 that is in contact with the guide wheel 2 is made of rubber. 311 is a non-through groove. One side of the slot 311 extends through to the outer circumferential wall of the guide wheel 2.

[0034] The quick-release assembly 32 includes a fixing ring 321, a fixing block 322, a sliding groove 323, a sliding baffle 324, and a return spring 325. The fixing ring 321 is fixedly installed at the top center of the guide wheel 2. Multiple fixing blocks 322 are fixedly installed at the top edge of the guide wheel 2, and the multiple fixing blocks 322 are distributed circumferentially at equal intervals on the top of the guide wheel 2. A through sliding groove 323 is provided in the middle of the fixing block 322. The sliding baffle 324 is slidably connected to the sliding groove 323. The outer end of the return spring 325 is fixedly connected to the inner end of the sliding baffle 324. The inner end of the return spring 325 is fixedly connected to the outer wall of the fixing ring 321. The bottom surface of the sliding baffle 324 is slidably connected to the top surface of the protective plate 312. The outer end of the sliding baffle 324 can slide to cover the top opening of the slot 311.

[0035] In this invention, after the steel strip is drawn out from the feed roller, it enters the rolling mill section. The protective plates 312 on the two guide rollers 2 contact the side of the steel strip, thereby preventing the surface of the guide rollers 2 from directly contacting the side of the steel strip, thus improving the service life of the guide rollers 2. When the protective plate 312 is worn, it is only necessary to pull the sliding baffle 324 corresponding to the worn protective plate 312 inward, so that the sliding baffle 324 compresses the return spring 325 inward until the sliding baffle 324 leaves the top opening of the slot 311. At this time, the sliding baffle 324 releases the restriction on the top of the protective plate 312. Then, the protective plate 312 is pulled out upward, and a new protective plate 312 is installed.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wear-resistant guide wheel mechanism, comprising a base plate (1), characterized in that: The top of the horizontal plate of the base plate (1) is equipped with a synchronous lifting mechanism (4) for controlling the up and down movement of the guide wheel (2). Two symmetrical guide wheels (2) are installed on the left and right sides of the top of the synchronous lifting mechanism (4). Both guide wheels (2) are equipped with a guide wheel anti-wear mechanism (3) for improving the service life of the guide wheel (2). The guide wheel anti-wear mechanism (3) includes a guide wheel protection component (31) for protecting the guide wheel (2) and a quick-release component (32) for quickly replacing the guide wheel protection component (31). Multiple guide wheel protection components (31) are installed on the outside of each guide wheel (2). The quick-release component (32) is installed on the top of the guide wheel (2), and the guide wheel protection component (31) is connected to the quick-release component (32).

2. The wear-resistant guide wheel mechanism according to claim 1, characterized in that, The synchronous lifting mechanism (4) includes a drive assembly and a lifting assembly. The drive assembly and the lifting assembly are installed on the top of the horizontal plate of the base plate (1), and the two lifting assemblies are symmetrically installed on the left and right sides of the drive assembly.

3. The wear-resistant guide wheel mechanism according to claim 2, characterized in that, The drive assembly includes a motor (41), a T-type reducer (42), and lead screws (43). The T-type reducer (42) is fixedly installed at the top center of the horizontal plate of the base plate (1). The motor (41) is fixedly installed at the front end of the T-type reducer (42), and the output end of the motor (41) is fixedly connected to the input end of the T-type reducer (42). Two lead screws (43) are respectively located on both sides of the T-type reducer (42), and the output end of the T-type reducer (42) is fixedly connected to the end of the two lead screws (43) that are close to each other. The ends of the two lead screws (43) that are opposite to each other are respectively connected to two lifting assemblies.

4. The wear-resistant guide wheel mechanism according to claim 3, characterized in that, The lifting assembly includes a push wedge (44), a horizontal guide rail (45), a lifting wedge (46), and a vertical guide rail (47). The opposite ends of two lead screws (43) are respectively inserted into the internal threads of the two push wedges (44). The two horizontal guide rails (45) are respectively fixedly installed on the top left and right sides of the horizontal plate of the base plate (1). The bottom of the two push wedges (44) is respectively limited and slidably connected to the two horizontal guide rails (45). The two vertical guide rails (47) are symmetrically fixedly installed on the inner sidewalls of the two vertical plates of the base plate (1). The opposite ends of the two lifting wedges (46) are respectively limited and slidably connected to the two vertical guide rails (47). The top inclined surface of the push wedge (44) on the same side is limited and slidably connected to the bottom inclined surface of the lifting wedge (46). The two guide wheels (2) are respectively rotatably installed on the top of the two lifting wedges (46).

5. The wear-resistant guide wheel mechanism according to claim 4, characterized in that, The guide wheel protection assembly (31) includes a slot (311) and a protective plate (312). The top edge of the guide wheel (2) is provided with multiple slots (311). The protrusions on the inner side of the multiple protective plates (312) are respectively inserted into the multiple slots (311). The slots (311) are non-through slots.

6. The wear-resistant guide wheel mechanism according to claim 5, characterized in that, Multiple slots (311) are evenly distributed in a circular pattern at equal intervals on the top of the guide wheel (2).

7. The wear-resistant guide wheel mechanism according to claim 6, characterized in that, The outer side of the protective plate (312) is coated with a wear-resistant coating, and the inner side of the protective plate (312) that is in contact with the guide wheel (2) is made of rubber.

8. The wear-resistant guide wheel mechanism according to claim 7, characterized in that, The quick-release assembly (32) includes a fixing ring (321), fixing blocks (322), a sliding groove (323), a sliding baffle (324), and a return spring (325). The fixing ring (321) is fixedly installed at the top center of the guide wheel (2), and multiple fixing blocks (322) are fixedly installed at the top edge of the guide wheel (2). The multiple fixing blocks (322) are evenly distributed in a circle on the top of the guide wheel (2), and a through-hole is provided in the middle of the fixing block (322). The sliding groove (323) has a sliding baffle (324) that is slidably connected to it. The outer end of the return spring (325) is fixedly connected to the inner end of the sliding baffle (324). The inner end of the return spring (325) is fixedly connected to the outer wall of the fixing ring (321). The bottom surface of the sliding baffle (324) is slidably connected to the top surface of the protective plate (312). The outer end of the sliding baffle (324) can slide and block the top opening of the slot (311).

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