Old roller replacing device

Abstract

The utility model relates to an old roller replacing device which comprises an old roller box arranged on a roller replacing vehicle body, a roller bearing table provided with at least one carrier roller groove in the table top, a bearing table lifting driving mechanism and an old roller transferring mechanism, and one carrier roller groove is located in the end, close to the old roller box, of the roller bearing table; the old roller transferring mechanism comprises a shifting rod and a rotation driving unit used for driving the shifting rod to rotate. The end, away from the old roller box, of the carrier roller groove serves as a reference notch end, the transverse distance between the rotating shaft of the deflector rod and any reference notch end is smaller than the rotating radius of the deflector rod, and the transverse direction is the horizontal direction perpendicular to the axial direction of the roller. According to the utility model, the old roller box and the old roller transferring mechanism are arranged on the roller replacing vehicle body, so that the old roller can be transferred among the roller equipment, the roller bearing table and the roller box, the operation is convenient and quick, the reliability is high, the old roller dismounting process does not depend on a crown block, and the roller replacing waiting time and the unit downtime are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical equipment, and particularly relates to a device for replacing old rollers. Background Art

[0002] In metal strip rolling mills, various rollers need to be replaced and repaired regularly, and overhead cranes are often required for transportation. If the waiting time for the overhead crane or the unit downtime is too long when changing rolls, or the roll changing process is inconvenient, it will affect the unit's output and increase the labor intensity of workers. Utility Model Content

[0003] The utility model relates to a device for replacing old rollers, which can at least solve some defects of the prior art.

[0004] The utility model relates to a device for replacing old rollers, comprising a roller-changing vehicle body, on which are provided an old roller box, a roller placing platform, a lifting drive mechanism for driving the roller placing platform to move up and down between a roller-changing station and a roller-handover station, and an old roller transfer mechanism for transferring the rollers on the roller placing platform at the roller-handover station to the old roller box.

[0005] The roller supporting platform is provided with at least one roller support groove suitable for supporting the roller, and one roller support groove is located at one end of the roller supporting platform close to the old roller box;

[0006] The old roller transfer mechanism includes a shift rod and a rotation drive unit for driving the shift rod to rotate; taking the end of the roller groove away from the old roller box as the reference slot end, the lateral distance between the rotating shaft of the shift rod and any reference slot end is smaller than the rotation radius of the shift rod, wherein the lateral direction is the horizontal direction perpendicular to the axial direction of the roller.

[0007] As one of the implementation modes, a plurality of the shifting rods are provided, and the shifting rods are sequentially spaced apart along the longitudinal direction, where the longitudinal direction is a horizontal direction parallel to the axial direction of the roller.

[0008] As one of the implementation modes, each of the shifting rods is connected in series to a synchronization link, and the synchronization link is connected to the rotation drive unit.

[0009] As one of the embodiments, the roller supporting platform includes a platform body and multiple supporting seats, each supporting seat is arranged in sequence on the top of the platform body along the longitudinal direction, and each supporting seat is respectively provided with the roller groove, and the longitudinal direction is a horizontal direction parallel to the roller axis.

[0010] As one of the implementation modes, there are a plurality of the shifting rods, and the shifting rods are arranged in sequence and spaced apart in the longitudinal direction and are distributed between the receiving seats.

[0011] As one of the implementation modes, the roller groove is a V-shaped groove or an arc-shaped groove.

[0012] As one of the implementation modes, the bottom of the used roller box has a slope from a side close to the roller supporting platform to a side away from the roller supporting platform.

[0013] As one of the implementation modes, the old roller box is detachably arranged on the roller changing vehicle body.

[0014] As one of the implementation modes, the top of the old roller box is open, and a detachable baffle is provided on the side of the old roller box facing the roller supporting platform.

[0015] As one of the implementation modes, the roller-changing vehicle body is provided with traveling wheels and a traveling drive mechanism.

[0016] The present invention has at least the following beneficial effects: in the present invention, an old roller box and an old roller transfer mechanism are arranged on the roller changing vehicle body, which can complete the handover and transfer of the old roller between the roller equipment-roller placement platform-roller box, and the operation is convenient, fast and reliable. The old roller disassembly process does not rely on the overhead crane, saving the waiting time for roller changing and the unit downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the arrangement of the old roller box and the old roller transfer mechanism on the roller changing vehicle;

[0019] Figure 2 for Figure 1 Side view of;

[0020] Figure 3 for Figure 2 Sectional view along AA;

[0021] Figure 4 for Figure 1 Top view of . DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1-Figure 4 An embodiment of the utility model provides a used roller replacement device, including a roller changing vehicle body 1, on which is provided an old roller box 2, a roller placing platform 4, a lifting drive mechanism 41 for driving the roller placing platform 4 to rise and fall between a roller changing station and a roller handover station, and an old roller transfer mechanism for transferring the roller on the roller placing platform 4 at the roller handover station to the old roller box 2.

[0024] The surface of the roller supporting platform 4 is provided with at least one roller supporting groove 43 suitable for supporting rollers, and one roller supporting groove 43 is located at one end of the roller supporting platform 4 close to the old roller box 2 .

[0025] like Figure 1-Figure 4 The old roller transfer mechanism includes a shift rod 71 and a second rotation drive unit 72 for driving the shift rod 71 to rotate; taking the end of the roller groove 43 away from the old roller roller box 2 as the reference slot end, the lateral distance between the rotating axis of the shift rod 71 and any reference slot end is smaller than the rotation radius of the shift rod 71, wherein the lateral direction is the horizontal direction perpendicular to the roller axis.

[0026] The second rotation drive unit 72 may include an automatic drive device such as a motor, or may be driven by a handwheel.

[0027] In this embodiment, Figure 1-Figure 4 The roller support platform 4 is provided with a plurality of roller grooves 43, which are arranged in a connected manner in a transverse direction. Based on this solution, the roller support platform 4 can cache multiple rollers, not only multiple old rollers, but also one or more new rollers, which can improve the efficiency and flexibility of the roller replacement operation, including but not limited to:

[0028] Multiple new rollers can be placed on the roller support platform 4, and then the roller support platform 4 is lifted to the roller changing station, so that multiple new rollers can be installed at one time;

[0029] Multiple old rollers can be removed at one time and placed on the roller holding platform 4, and then the roller holding platform 4 is lowered to the roller handover station, and each old roller is placed in the old roller box 2;

[0030] At the roll changing station, the old roll can be removed to the roll supporting platform 4, and then the new roll on the roll supporting platform 4 can be installed on the corresponding equipment (such as a rolling mill), so the old roll removal and new roll installation operations can be completed at the same time.

[0031] The above-mentioned roller grooves 43 are preferably V-shaped grooves or arc-shaped grooves; the roller grooves 43 are preferably shallow grooves to facilitate the rollers to flow between the roller grooves 43.

[0032] In one embodiment, the roller supporting platform 4 includes a platform body and a plurality of supporting seats, and the supporting seats are arranged on the top of the platform body in sequence along the longitudinal direction, and the above-mentioned roller groove 43 is respectively provided on each supporting seat; this structure can not only reduce the weight of the roller supporting platform 4, but also facilitate the arrangement and movement of the old roller transfer mechanism.

[0033] Preferably, a plurality of levers 71 are provided, each lever 71 being spaced apart longitudinally. Each lever 71 is preferably driven by the same rotary drive device. For example, each lever 71 is serially connected to a synchronous connecting rod, which is connected to the second rotary drive unit 72. For the structure with multiple receiving seats, each lever 71 is preferably interspersed and distributed between the receiving seats.

[0034] Since the lateral distance between the rotating shaft of the shift lever 71 and any reference slot end is limited to be smaller than the rotation radius of the shift lever 71, when there are multiple roller grooves 43 distributed laterally, the shift lever 71 can cover each roller groove 43. When the shift lever 71 rotates in the set direction, the rollers on the roller supporting platform 4 can flow between the roller grooves 43, thereby facilitating the smooth delivery of the old rollers into the old roller box 2.

[0035] The vehicle body 1 is preferably provided with traveling wheels 11 , and more preferably provided with a traveling drive mechanism 12 , so that the vehicle body 1 can travel on its own.

[0036] Under the action of the lifting drive mechanism 41, the roller support platform 4 has a roller changing station and a roller handover station. The roller changing operation and the roller handover operation are performed at different heights, and the two operations do not interfere with each other, which can ensure operating space and ensure operational safety. Among them, preferably, the roller changing station is located above the roller handover station.

[0037] In one embodiment, a lifting frame 42 is provided on the vehicle body 1, and the roller support platform 4 is slidably mounted on the lifting frame 42. The lifting drive mechanism 41 can be arranged on the vehicle body 1 or mounted on the lifting frame 42. Preferably, two door-shaped frames are provided on the vehicle body 1 to constitute the aforementioned lifting frame 42; lifting guide rails are provided on the door-shaped frames, and the roller support platform 4 slides along the lifting guide rails to ensure smooth lifting motion.

[0038] The lifting drive mechanism 41 includes but is not limited to linear drive devices such as air cylinders and hydraulic cylinders.

[0039] The used roller box 2 is preferably open at the top to facilitate the placement and removal of rollers. Preferably, a removable baffle 8 is provided on the side of the used roller box 2 facing the roller support platform 4. When the baffle 8 is removed, rollers can be allowed to enter and exit from this side. For example, rollers on the roller support platform 4 can enter the used roller box 2 through this side. When the baffle 8 is installed, the rollers can be prevented from falling out of the used roller box 2, thereby facilitating operations such as lifting the used roller box 2.

[0040] The bottom of the used roller box 2 preferably adopts a frame structure, for example, including a plurality of used roller supporting rods 21 arranged in sequence and spaced apart along the longitudinal direction. This structure can reduce the weight of the used roller box 2.

[0041] Therefore, when the old roller box 2 is detachably set on the vehicle body 1, the production convenience can be improved. For example, after collecting several old rollers in the old roller box 2, they can be lifted off the vehicle body 1 together. This can prevent the rollers from being lifted on the vehicle body 1, which is safer and more convenient.

[0042] Preferably, the bottom of the used roller box 2 has a slope from the side close to the roller supporting platform 4 to the side away from the roller supporting platform 4, and the old rollers can automatically enter the used roller box 2 by their own weight.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for replacing old rollers, comprising a roller-changing vehicle body, characterized in that: The roll changing vehicle body is provided with a used roll box, a roll placing platform, a lifting drive mechanism for driving the roll placing platform to move up and down between the roll changing station and the roll handover station, and an old roll transfer mechanism for transferring the rolls on the roll placing platform at the roll handover station to the used roll box. The roller supporting platform is provided with at least one roller support groove suitable for supporting the roller, and one roller support groove is located at one end of the roller supporting platform close to the old roller box; The old roller transfer mechanism includes a shifting rod and a rotation driving unit for driving the shifting rod to rotate; Taking the end of the roller groove away from the old roller box as the reference slot end, the lateral distance between the rotating shaft of the shift rod and any reference slot end is smaller than the rotation radius of the shift rod, wherein the lateral direction is the horizontal direction perpendicular to the roller axis.

2. The old roller replacement device according to claim 1, characterized in that: There are multiple shifting rods, and the shifting rods are arranged in sequence and spaced apart along the longitudinal direction, and the longitudinal direction is a horizontal direction parallel to the axial direction of the roller.

3. The old roller replacement device according to claim 2, characterized in that: Each of the shifting rods is connected in series to a synchronous connecting rod, and the synchronous connecting rod is connected to the rotation driving unit.

4. The old roller replacement device according to claim 1, characterized in that: The roller supporting platform includes a platform body and a plurality of supporting seats, each supporting seat is arranged on the top of the platform body in sequence along the longitudinal direction, and each supporting seat is provided with the roller groove, and the longitudinal direction is the horizontal direction parallel to the roller axis.

5. The old roller replacement device according to claim 3, characterized in that: There are multiple shifting rods, and the shifting rods are arranged in sequence and spaced apart along the longitudinal direction and are distributed between the receiving seats.

6. The old roller replacement device according to claim 1, characterized in that: The roller groove is a V-shaped groove or an arc-shaped groove.

7. The old roller replacement device according to claim 1, characterized in that: The bottom of the used roller box has a slope from a side close to the roller placing platform to a side away from the roller placing platform.

8. The old roller replacement device according to claim 1, characterized in that: The old roller box is detachably arranged on the roller changing vehicle body.

9. The old roller replacement device according to claim 1, characterized in that: The top of the old roller box is open, and a detachable baffle is provided on one side of the old roller box facing the roller supporting platform.

10. The old roller replacement device according to claim 1, characterized in that: The roller changing vehicle body is provided with traveling wheels and a traveling drive mechanism.

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