Finish rolling air-drop rack roller

Abstract

The invention discloses a finish rolling air-drop rack roller which comprises a roller body (1) and a rack used for supporting the roller body (1), the rack is composed of a rack base (2), a rack roller base and a roller shaft bearing seat (3), the rack roller base comprises a lower rack roller base (4) and an upper rack roller base (5), the lower rack roller base (4) is fixedly arranged on the rack base (1), and the upper rack roller base (5) is fixedly arranged on the rack base (1). The upper rack roller base (5) is matched with the lower rack roller base (4) in the mode that the upper rack roller base (5) can move in the direction perpendicular to the horizontal plane relative to the lower rack roller base (4), and the roller shaft bearing seat (3) is arranged on the upper rack roller base (5). And the roller shaft bearing seat (4) is used for supporting a roller body. According to the finish rolling air-drop rack roller, the degree of damage caused by the fact that strip steel impacts the roller surface can be reduced on the premise that the requirement for air passing of strip steel of different thicknesses is met.

Description

Technical Field

[0001] The present invention belongs to the technical field of hot strip rolling, and particularly relates to a finishing idle stand roll. Background Art

[0002] When a failure occurs in the stand drive device such as a transmission shaft, a gearbox, a large motor, etc., the machine can only be stopped to handle the failure, and the cycle of failure repair and troubleshooting is relatively long. In order to overcome the long downtime caused by this problem, a replacement scheme based on the idle stand has been established in the prior art. However, the existing idle stand rolls are likely to cause surface quality defects such as convex pits on the lower surface of the steel plate or scratch marks on the plate channel system. Moreover, due to the non-adjustable height, the specific idle setting position is generally established according to the thickness of the slab.

[0003] The utility model application with the application number: CN200920288928.9 discloses a "transition drive roller table device for the main drive failure of a hot continuous rolling mill", which includes a transition roller table and its drive. The two ends of two identical transition roller tables are parallelly installed on the same pair of transition roller brackets through their respective bearing seats; the same drive motors are installed at the same ends of the two transition roller tables. The roller diameters of the two roller tables are 250 - 300 mm, and the drive motors are installed on the working side, and the linear speed of the drive motors is the same as that of the previous stand of the hot continuous rolling mill. The total height of the transition roller table, the bearing seat, and the transition roller bracket is 10 - 15 mm, and the roll gap between the two transition roller tables is 70 - 90 mm.

[0004] The invention application with the application number: CN201310187496.3 discloses a "rolling method for idling setting of a rolling mill failure". During the rolling process of multiple stands of rolling mills, when one or more rolling mills fail, the normal operation of the failed rolling mill is simulated by a computer, so that the rolling mills without failures can operate normally.

[0005] The utility model application with the application number: CN2020201224072 discloses a "roll adding device for a rolling mill", which includes a roll feeding frame and a roll supporting frame respectively arranged on the left and right sides of the rolling mill. The two ends of the roll are provided with mounting blocks with a T-shaped cross-section. The roll feeding frame is a "U" - shaped frame, and a supporting plate that supports both sides of the mounting block is arranged on the roll feeding frame; the roll supporting frame is a "mouth" - shaped frame, and a moving seat and a first driving device for driving the moving seat to move up and down are arranged on the roll supporting frame. Two supporting plates that can move horizontally are arranged side by side on the moving seat. A supporting block and a second driving device for driving the supporting block to move up and down are arranged on the roll feeding frame in cooperation with the supporting plates; a moving mechanism for driving the roll to move along the supporting plate is arranged on the roll feeding frame. Summary of the Invention

[0006] To solve the above problems, the present invention provides a finishing idle stand roll, and its technical solution is as follows:

[0007] A finishing mill idle roll stand roll includes a roll body and a stand for supporting the roll body.

[0008] The stand is composed of a stand base, a stand roll base, and a roll shaft bearing seat.

[0009] The stand roll base includes a lower stand roll base and an upper stand roll base.

[0010] The lower stand roll base is fixedly provided on the stand base 1.

[0011] The upper stand roll base is adapted to the lower stand roll base in a manner that it can be displaced relative to the lower stand roll base in a direction perpendicular to the horizontal plane.

[0012] The roll shaft bearing seat is provided on the upper stand roll base.

[0013] The roll shaft bearing seat is used to support the roll body.

[0014] Furthermore,

[0015] A slide rail is provided on the upper end surface of the upper stand roll base, and the lower end surface of the roll shaft bearing seat is arranged in a form adapted to the slide rail.

[0016] On the upper stand roll base, a baffle is provided on the strip output side in a direction radially parallel to the roll body.

[0017] A spring is arranged horizontally between the baffle and the roll shaft bearing seat.

[0018] Furthermore,

[0019] The slide rail is composed of a slide rail horizontal part in the middle and slide rail inclined plane support parts on both sides of the slide rail horizontal part. Accordingly, the cross-section of the slide rail is arranged in an inverted triangle shape.

[0020] Accordingly, the lower end surface of the roll shaft bearing seat adapted to the chute is arranged in a dovetail groove shape.

[0021] Furthermore,

[0022] Through the arranged screw rod transmission mechanism cooperating with the arranged connecting rod mechanism, the upper stand roll base can be displaced relative to the lower stand roll base in a direction perpendicular to the horizontal plane.

[0023] Furthermore,

[0024] The screw rod transmission mechanism includes a first screw rod transmission mechanism arranged in the stand roll base and a second screw rod transmission mechanism arranged between the lower stand roll base and the upper stand roll base.

[0025] The first screw rod transmission mechanism cooperates with the connecting rod mechanism to establish a transmission.

[0026] The second lead screw drive mechanism is used to control the formation of a stable fit and support between the lower frame roll base and the upper frame roll base after the first lead screw drive mechanism and the link mechanism are in place.

[0027] Furthermore,

[0028] The lead screw of the first lead screw drive mechanism is arranged in the horizontal plane direction, and the nut member is driven to move left and right horizontally by driving the lead screw to rotate;

[0029] A rocker is hinged to the nut member, and the other end of the rocker is hinged to a fixed rod;

[0030] The fixed rod is fixedly connected to the upper frame roll base.

[0031] Furthermore,

[0032] The second lead screw drive mechanism includes a lower end fixed block structure and an upper end moving block structure;

[0033] The lower end fixed block structure includes: a bottom plate fixedly arranged on the lower frame roll base, and a cavity block and a slide rail member arranged side by side on the bottom plate;

[0034] A cavity that forms an acute angle with the horizontal direction is opened in the cavity block,

[0035] A screw rod is fixedly arranged in the cavity,

[0036] One end of the screw rod adapted to the corresponding part of the cavity is processed into a conical shape, and the other end of the screw rod extends from the inside of the cavity to the outside of the cavity;

[0037] A slider that can move along the slide rail is arranged on the slide rail member, and the slider is connected to a moving block;

[0038] A thread surface adapted to the thread of the screw rod is processed on the moving block;

[0039] The screw rod, the moving block and the slider form a thread pair, and the linear motion of the moving block and the slider is established by driving the screw rod to rotate.

[0040] Furthermore,

[0041] The second lead screw drive mechanisms arranged between the lower frame roll base and the upper frame roll base are a set of symmetrically arranged ones.

[0042] A finishing idle frame roll of the present invention, by combining the screw drive principle and the connecting rod mechanism drive, well establishes height adjustment in a narrow space. By forming a height-adjustable frame roll and cooperating with a buffer mechanism provided, the frame roll thus forms a friendly response to the passage of strip steel with different thicknesses, and reduces the degree of damage caused by the strip steel hitting the roll surface on the premise of satisfying the passage of strip steel with different thicknesses. The first screw drive mechanism cooperates with the connecting rod mechanism to form height adjustment of the roll body, while the second screw mechanism is used to ensure that the roll seat of the frame roll can form a stable support under different adjustment conditions. The two cooperate to finally form a response and stable support for different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is a schematic structural diagram of the present invention;

[0044] Figure 2 is Figure 1 a partially enlarged schematic diagram;

[0045] Figure 3 is Figure 1 a schematic diagram in a height adjustment state;

[0046] Figure 4 is a schematic structural diagram of the second screw drive mechanism in the present invention;

[0047] Figure 5 is Figure 4 a moving effect schematic diagram of

[0048] In the figure,

[0049] 1 - roll body;

[0050] 2 - frame base;

[0051] 3 - roll shaft bearing seat;

[0052] 4 - lower frame roll base;

[0053] 5 - upper frame roll base;

[0054] 6 - horizontal part of the slide rail;

[0055] 7 - inclined plane support part of the slide rail;

[0056] 8 - first screw drive mechanism;

[0057] 9 - second screw drive mechanism;

[0058] 10 - screw;

[0059] 11 - nut member;

[0060] 12 - rocker;

[0061] 13 - Fixed rod;

[0062] 14 - Cavity block;

[0063] 15 - Cavity;

[0064] 16 - Screw;

[0065] 17 - Movable block. Detailed implementation mode

[0066] Next, a finishing air - throwing machine stand roll of the present invention will be further specifically described according to the accompanying drawings of the specification and the specific working process.

[0067] As Figure 1 shown, a finishing air - throwing machine stand roll includes a roll body 1 and a frame for supporting the roll body 1. The frame is composed of a frame base 2, a frame roll base, and a roll shaft bearing seat 3. The frame roll base includes a lower frame roll base 4 and an upper frame roll base 5. The lower frame roll base 4 is fixedly arranged on the frame base 1. The upper frame roll base 5 is adapted to the lower frame roll base 4 in a manner that it can displace relative to the lower frame roll base 4 in a direction perpendicular to the horizontal plane. The roll shaft bearing seat 3 is arranged on the upper frame roll base 5; the roll shaft bearing seat 4 is used to support the roll body. By setting the upper frame roll base 5 to be displaceable relative to the lower frame roll base 4 in a direction perpendicular to the horizontal plane, the height adjustment in the height direction of the roll body is realized. In addition, a slide rail is provided on the upper end surface of the upper frame roll base 5, and the lower end surface of the roll shaft bearing seat 3 is arranged in a form adapted to the slide rail. The partial enlarged schematic diagram of this part is as Figure 2 shown; on the upper frame roll base 5, a baffle is arranged on the strip output side in a direction parallel to the radial direction of the roll body; a spring is arranged horizontally between the baffle and the roll shaft bearing seat 4. By setting the slide rail in cooperation with the spring, when the strip hits the roll body, the upper frame roll base 5 can undergo slight movement, thereby establishing a buffer for the impact of the strip, forming protection for the surface damage of the strip, and forming self - recovery after the impact through the self - recovery force of the spring. According to such a finishing air - throwing machine stand roll, through the height adjustment setting in cooperation with the impact buffer setting, it can serve the air - throwing of strips with different thicknesses well.

[0068] The above height adjustment setting is specifically achieved through the transmission established by combining the lead screw drive and the linkage mechanism. At the same time, considering the convenience of adjustment and the stability of the running of the frame rollers after adjustment, the height adjustment based on the cooperation of the first lead screw drive mechanism and the linkage mechanism, as well as the setting for ensuring the stability of the equipment after adjustment based on the second lead screw drive mechanism, are established. The first lead screw drive mechanism 8 cooperates with the linkage mechanism to establish the transmission; the second lead screw drive mechanism 9 is used to control the formation of a firm fit and support between the lower frame roller base 4 and the upper frame roller base 5 after the first lead screw drive mechanism 8 and the linkage mechanism act in place.

[0069] For the combined transmission part of the lead screw drive and the linkage mechanism, the lead screw drive is arranged in the horizontal direction, establishing a lead screw drive mechanism that converts the rotation of the screw pair into horizontal displacement. For the linkage mechanism part, the horizontal displacement of the nut member is used as the first transmission member, the rocker hinged to the nut member is used as the second transmission member, and the fixed rod hinged to the rocker is used as the third transmission member. By fixing the fixed rod on the upper frame roller base 5, the vertical displacement of the upper frame roller base can be achieved by driving the first lead screw mechanism, thereby realizing the height adjustment of the frame rollers. After adjusting the upper frame roller base, by adjusting the lower frame roller seat, the lower frame roller seat can form a stable support for the upper frame roller seat. And the second lead screw mechanism is used to achieve this purpose. Specifically, the second lead screw drive mechanism 9 includes a lower end fixed block structure and an upper end moving block structure; the lower end fixed block structure includes: a bottom plate fixed on the lower frame roller base 4 and a cavity block 14 and a slide rail member arranged side by side on the bottom plate; a cavity 15 that forms an acute angle with the horizontal direction is opened in the cavity block 14, a screw rod 16 is fixed in the cavity 15, one end of the screw rod 16 adapted to the corresponding part of the cavity is processed into a conical shape, and the other end of the screw rod 15 extends from the inside of the cavity to the outside of the cavity 15; a slide block that can move along the slide rail is arranged on the slide rail member, and the slide block is connected to a moving block 17; a thread surface adapted to the thread of the screw rod 15 is processed on the moving block 17; the screw rod 15, the moving block 17 and the slide block form a screw pair, and the linear motion of the moving block and the slide block is established by driving the screw rod to rotate, as Figure 4 shown. It should be noted that: the setting and principle of the first lead screw drive mechanism are the same as those of the second lead screw drive mechanism, except that the first lead screw drive mechanism converts the helix into horizontal displacement, so it is arranged in the horizontal direction, while the second lead screw drive mechanism needs to convert the helix into height displacement, so the screw rod is arranged at an acute angle with the horizontal plane, so as to establish supports at different heights on the premise of converting the screw rotation into linear displacement.

[0070] In order to form an effective stable support, the second lead screw drive mechanism is set as a group symmetrically arranged between the lower frame roller base 4 and the upper frame roller base 5.

[0071] There is a bolt connection passing through between the lower housing roll base 4 and the upper housing roll base 5. During height adjustment, (as Figure 3 shown in the height adjustment schematic diagram,) a smooth rod is placed in the corresponding screw hole, which is only used to form a horizontal limit and does not affect the displacement of the upper housing roll base 5 relative to the lower housing roll base. After the height adjustment is completed through the first lead screw drive mechanism in cooperation with the connecting rod mechanism, a firm adjustment based on the second lead screw drive mechanism is then carried out (as Figure 5 shown in the adjustment schematic diagram of the second lead screw drive mechanism). After the adjustment of the second lead screw drive mechanism is completed, the smooth rod placed in the screw hole is removed, and the lower housing roll base 4 and the upper housing roll base 5 are bolted together with bolt connectors.

Claims

1. A finishing air-spinning stand roll, comprising a roll body (1) and a stand for supporting the roll body (1), characterized in that: The stand is composed of a stand base (2), a stand roll base and a roll shaft bearing seat (3), The stand roll base includes a lower stand roll base (4) and an upper stand roll base (5), The lower stand roll base (4) is fixedly arranged on the stand base (1), The upper stand roll base (5) is adapted to the lower stand roll base (4) in such a way that it can be displaced relative to the lower stand roll base (4) in a direction perpendicular to the horizontal plane, The roll shaft bearing seat (3) is arranged on the upper stand roll base (5); The roll shaft bearing seat (4) is used to support the roll body.

2. The finishing air-spinning stand roll according to claim 1, characterized in that: A slide rail is arranged on the upper end surface of the upper stand roll base (5), and the lower end surface of the roll shaft bearing seat (3) is arranged in a form adapted to the slide rail; On the upper stand roll base (5), a baffle is arranged on the strip output side in the direction parallel to the radial direction of the roll body; A spring is arranged horizontally between the baffle and the roll shaft bearing seat (4).

3. The finishing air-spinning stand roll according to claim 2, characterized in that: The slide rail is composed of a slide rail horizontal part (6) in the middle and slide rail inclined plane support parts (7) on both sides of the slide rail horizontal part, and accordingly, the cross-section of the slide rail is arranged in an inverted triangle shape; Accordingly, the lower end surface of the roll shaft bearing seat (3) adapted to the chute is arranged in a dovetail groove shape.

4. The finishing air-spinning stand roll according to claim 1, characterized in that: Through the arranged screw rod transmission mechanism and the arranged connecting rod mechanism, the upper stand roll base (5) can be displaced relative to the lower stand roll base (4) in a direction perpendicular to the horizontal plane.

5. The finishing air-spinning stand roll according to claim 4, characterized in that: The screw rod transmission mechanism includes a first screw rod transmission mechanism (8) arranged in the stand roll base (5) and a second screw rod transmission mechanism (9) arranged between the lower stand roll base (4) and the upper stand roll base (5); The first screw rod transmission mechanism (8) is in transmission cooperation with the connecting rod mechanism; The second screw rod transmission mechanism (9) is used to control the formation of a stable adaptation and support between the lower stand roll base (4) and the upper stand roll base (5) after the first screw rod transmission mechanism (8) and the connecting rod mechanism act in place.

6. The finishing air-spinning stand roll according to claim 5, characterized in that: The screw rod (10) of the first screw rod transmission mechanism (8) is arranged along the horizontal plane direction, and the nut member (11) is driven to move left and right horizontally by driving the screw rod (10) to rotate; A rocker (12) is hinged on the nut member (11), and the other end of the rocker (12) is hinged to a fixed rod (13); The fixed rod (13) is fixedly connected to the upper stand roll base (5).

7. The finishing air-spinning stand roll according to claim 5, characterized in that: The second screw rod transmission mechanism (9) includes a lower end fixed block structure and an upper end moving block structure; The lower end fixing block structure includes: a bottom plate fixed on the lower frame roller base (4), and a cavity block (14) and a slide rail member arranged side by side on the bottom plate; A cavity (15) that forms an acute angle with the horizontal direction is provided in the cavity block (14), A screw rod (16) is fixedly arranged in the cavity (15), One end of the screw rod (16) adapted to the corresponding part of the cavity is processed into a conical shape, and the other end of the screw rod (15) extends from the inside of the cavity to the outside of the cavity (15); A slider that can move along the slide rail is arranged on the slide rail member, and the slider is connected to a moving block (17); A thread surface adapted to the thread of the screw rod (15) is formed on the moving block (17); The screw rod (15), the moving block (17) and the slider form a screw pair, and the linear motion of the moving block and the slider is established by driving the screw rod to rotate.

8. The finishing airframe roll according to claim 5, characterized in that: The second lead screw drive mechanism (9) arranged between the lower frame roller base (4) and the upper frame roller base (5) is a set of symmetrically arranged ones.

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