A coupling for continuous rolling mill

Abstract

The present invention is applicable to the technical field of couplings, and provides a coupling for a continuous rolling mill, comprising a plum blossom pad and a first metal claw plate and a second metal claw plate matched therewith; further comprising a protective part; the protective part comprises fixed rings arranged in parallel with each other; a protective tube is rotatably arranged between the two fixed rings; an avoidance groove is provided on the outer peripheral side of the protective tube, and spiral grooves are symmetrically provided on the inner peripheral side of the protective tube on both sides of the avoidance groove; an ear plate is fixed on the inner peripheral side of the fixed ring; a guide part is fixed between the two ear plates; sleeves are fixed on the sides of the first metal claw plate and the second metal claw plate; an annular groove is provided on the outer peripheral side of the sleeve; a support part is rotatably matched with the annular groove; the device drives the spiral groove inside the protective tube to rotate, thereby driving the two support parts to approach or move away synchronously, thereby realizing the closing or separation of the first metal claw plate and the second metal claw plate. This process does not require the coupling to be disassembled and removed from the driving shaft and the driven shaft, thereby improving work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of couplings, and more particularly to a coupling for a continuous rolling mill. Background Art

[0002] Steel rolling machinery and equipment, especially the main shaft coupling of the main machine of the continuous rolling mill in the continuous rolling tube unit, mostly adopts gear coupling and plum blossom coupling. Among them, the plum blossom coupling is a very commonly used coupling, also called claw coupling, which is composed of two metal claw plates and an elastomer. The plum blossom coupling uses a plum blossom-shaped elastic element placed between the two half coupling claws to achieve the connection of the two half couplings. The plum blossom coupling is driven by extrusion and has the characteristics of compensating the relative displacement of the two shafts, small radial size, simple structure, no lubrication, high load-bearing capacity, and easy maintenance.

[0003] After long-term use and several compression deformations, the plum blossom pad in the plum blossom coupling will have cracks on its surface. In severe cases, the plum blossom elastomer will break, and the plum blossom pad needs to be replaced in time. However, in the prior art, it is necessary to remove the two ends of the plum blossom coupling from the driving shaft and the driven shaft respectively, take out the damaged plum blossom pad, and replace it with a new one. The disassembly and installation process of the plum blossom coupling is relatively cumbersome, affecting production efficiency. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a coupling for a continuous rolling mill, which drives the spiral groove inside the protective tube to rotate, thereby driving the two supporting parts to move closer or farther away synchronously, thereby realizing the closing or separation of the first metal claw plate and the second metal claw plate. This process does not require the coupling to be disassembled and removed from the driving shaft and the driven shaft, and the installation and disassembly of the plum blossom pad can be completed, thereby improving work efficiency.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A coupling for a continuous rolling mill comprises a plum blossom washer and a first metal claw plate and a second metal claw plate matched therewith; it also comprises a protective portion arranged coaxially with the first metal claw plate and the second metal claw plate; the protective portion comprises fixed rings arranged parallel to each other; a protective tube is rotatably arranged between the two fixed rings; an avoidance groove is provided on the outer peripheral side surface of the protective tube, and spiral grooves are symmetrically provided on both sides of the avoidance groove on the inner peripheral side surface; an ear plate is fixed to the inner peripheral side surface of the fixed ring; and a guide portion is fixed between the two ear plates.

[0007] Sleeves are fixed on the sides of the first metal claw plate and the second metal claw plate; an annular groove is provided on the outer peripheral side of the sleeve; and a supporting part is rotatably matched with the annular groove.

[0008] The support part includes a support ring rotating in an annular groove; a support rod and a T-shaped plate are fixed to the circumferential side of the support ring in sequence; a ball head is fixed to the bottom end of the support rod and is slidably matched with the spiral groove; and the T-shaped plate is slidably matched with the guide part.

[0009] The present invention is further configured as follows: a sliding groove is provided on the inner circumferential side of the sleeve; a driving shaft and a driven shaft are slidingly arranged inside the two sleeves respectively; a clamping groove is provided on the outer circumferential side of the driving shaft and the driven shaft; a positioning pin plate is clamped in the clamping groove; and the positioning pin plate is slidingly matched with the corresponding sliding groove.

[0010] The present invention is further configured as follows: a gear ring is symmetrically fixed to the outer peripheral side of the protection tube; a mounting plate is fixed to the outer peripheral side of the fixing ring; a rotating shaft is rotatably arranged between the two mounting plates; and gears meshing with corresponding gear rings are symmetrically fixed to the rotating shaft.

[0011] The present invention is further configured as follows: a plurality of positioning holes are evenly opened on the side of the mounting plate; a first fixed plate is fixed to one end of the rotating shaft; a reset spring is fixed to the side of the first fixed plate; a second fixed plate is fixed to the end of the reset spring; a plurality of positioning rods are evenly fixed to the side of the second fixed plate and are slidably arranged on the side of the first fixed plate; the positioning rods are plugged into and matched with the positioning holes.

[0012] The present invention is further configured as follows: a curved surface installation cavity communicating with one end of the avoidance groove is provided inside the protection tube; and a rotating part is slidably provided inside the curved surface installation cavity.

[0013] The rotating part includes an arc-shaped baffle rotatably arranged in the curved surface mounting cavity; a plurality of ventilation holes are evenly opened on the outer peripheral side surface of the arc-shaped baffle; a plurality of arc-shaped springs are evenly fixed on one end of the arc-shaped baffle; the other end of the arc-shaped spring is fixed on the bottom surface of the curved surface mounting cavity; a handle is fixed on the side of the arc-shaped baffle away from the arc-shaped spring.

[0014] The present invention is further configured as follows: guide holes are symmetrically opened on the side of the ear plate; the guide part includes a connecting plate; and guide rods that are symmetrically fixed on the side of the connecting plate and slideably cooperate with the guide holes.

[0015] The side surface of the T-shaped plate is symmetrically provided with sliding holes which are slidably matched with the guide rod; the end of the guide rod is threadedly connected with a fastening nut.

[0016] The present invention is further configured as follows: a plurality of first teeth claws and a plurality of second teeth claws are fixed to the other opposite sides of the first metal claw plate and the second metal claw plate respectively; the plum blossom pad includes an elastic ring; a plurality of elastomers are evenly fixed to the outer peripheral side of the elastic ring; and a plug-in column that is plugged into and matched with the elastic ring is fixed to the side of the second metal claw plate.

[0017] The first tooth claw and the second tooth claw are meshed with each other; the elastic body is located in the gap between the first tooth claw and the second tooth claw.

[0018] The present invention is further configured as follows: a plurality of ejection holes are evenly opened on the side of the second metal claw disk; an extension ring coaxial with the second metal claw disk is fixed on the side of the second metal claw disk; and a retaining ring is fixed on the end of the extension ring.

[0019] An ejector is slidably arranged on the inner wall of the extension ring; the ejector comprises a slip ring slidably arranged between the extension ring and the sleeve; a plurality of ejector rods plug-fitted with corresponding ejector holes are evenly fixed on the side of the slip ring; a connecting spring sleeved on the corresponding ejector rod is fixed between the slip ring and the second metal claw plate.

[0020] The present invention is further configured as follows: a mounting ring coaxial with the fixing ring is arranged inside the fixing ring; a connecting plate is symmetrically fixed between the mounting ring and the fixing ring; a resist rod is symmetrically fixed on the side of the mounting ring; and a number of exhaust fan blades are evenly fixed on the outer peripheral side of the corresponding sleeve on the first metal claw plate.

[0021] The advantages of the present invention are:

[0022] 1. The present invention drives the spiral groove inside the protective tube to rotate, thereby driving the two supporting parts to move closer or farther away synchronously, thereby realizing the closing or separation of the first metal claw plate and the second metal claw plate. In this process, there is no need to disassemble and remove the coupling from the driving shaft and the driven shaft, and the installation and disassembly of the plum blossom pad can be completed, thereby improving work efficiency.

[0023] 2. The present invention arranges the protective tube and the arc-shaped baffle plate so that the rotating parts of the coupling are placed inside the protective tube and the arc-shaped baffle plate, thereby achieving a protective effect and preventing the coupling claws from breaking and flying out due to a malfunction, thereby improving the safety of operation.

[0024] 3. In the present invention, when the first metal claw plate and the second metal claw plate are separated from each other, the push rod shields the slip ring. During the continuous separation of the two claw plates, the slip ring is squeezed by the push rod, so that the push rod pushes the plum blossom pad out of the second metal claw plate, thereby improving the disassembly efficiency of the plum blossom pad in the coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a coupling for a continuous rolling mill according to the present invention.

[0026] Figure 2 It is a schematic structural diagram of the protection part of the present invention.

[0027] Figure 3 It is a schematic structural diagram of the protection part of the present invention from the right side viewing angle.

[0028] Figure 4It is a schematic structural diagram of the first metal claw plate of the present invention.

[0029] Figure 5 It is a schematic structural diagram of the second metal claw plate of the present invention.

[0030] Figure 6 It is a schematic structural diagram of the second metal claw plate of the present invention from another angle.

[0031] Figure 7 It is a schematic structural diagram of the plum blossom pad of the present invention.

[0032] Figure 8 It is a structural schematic diagram of the guide part of the present invention.

[0033] Fig. 9 It is a schematic structural diagram of the support portion of the present invention.

[0034] Fig.10 It is a schematic structural diagram of the drive shaft of the present invention.

[0035] Fig.11 It is a schematic structural diagram of the rotating part of the present invention.

[0036] Fig.12 It is a schematic structural diagram of the ejector of the present invention.

[0037] Fig.13 It is a structural schematic diagram of the second metal claw plate and the ejector assembly of the present invention.

[0038] Fig.14 It is a structural schematic diagram of the plum blossom pad replacement state of the present invention.

[0039] Fig.15 It is a schematic diagram of the structure of the present invention in use.

[0040] In the figure: 1, plum blossom pad; 2, first metal claw plate; 3, second metal claw plate; 4, protective part; 5, fixing ring; 6, protective tube; 7, avoidance groove; 8, spiral groove; 9, ear plate; 10, guide part; 11, sleeve; 12, annular groove; 13, support part; 14, support ring; 15, support rod; 16, T-shaped plate; 17, ball head; 18, slide groove; 19, driving shaft; 20, driven shaft; 21, slot; 22, positioning pin plate; 23, gear ring; 24, mounting plate; 25, rotating shaft; 26, gear; 27, positioning hole; 28, first fixing plate; 29, reset spring; 30, the first fixing plate; 31, the second fixing plate; 32, the second fixing plate; 33, the second fixing plate; 34, the second fixing plate; 35, the second fixing plate; 36, the second fixing plate; 37, the second fixing plate; 38, the first fixing plate; 39, the second fixing plate; 40, the second fixing plate; 41, the second fixing plate; 42, the second fixing plate; 43, the second fixing plate; 44, the second fixing plate; 45, the second fixing plate; 46, the second fixing plate; 47, the second fixing plate; 48, the second fixing plate; 49, the second fixing plate; 50, the second fixing plate; 51, the second fixing plate; 52, the second fixing plate; 53, the second fixing plate; 54, the second fixing plate; 55, the second fixing plate; 56, the second fixing plate; 57, the second fixing plate; 58, the second fixing plate; 59, the second fixing plate; 60, the second fixing plate; 61, the second fixing plate; 62, the second fixing plate; 63, the second fixing Two fixed plates; 31. Positioning rod; 32. Curved mounting cavity; 33. Rotating part; 34. Arc baffle; 35. Ventilation hole; 36. Arc spring; 37. Handle; 38. Guide hole; 39. Connecting plate; 40. Guide rod; 41. Sliding hole; 42. Fastening nut; 43. First tooth claw; 44. Second tooth claw; 45. Elastic collar; 46. Elastomer; 47. Insert column; 48. Ejection hole; 49. Extension ring; 50. Baffle ring; 51. Ejector; 52. Sliding ring; 53. Ejector rod; 54. Connecting spring; 55. Mounting ring; 56. Connecting plate; 57. Retaining rod; 58. Exhaust fan blade. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0043] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0044] For example, see Figure 1-15 , the present invention provides the following technical solutions:

[0045] A coupling for a continuous rolling mill, specifically, comprises a plum blossom pad 1 and a first metal claw plate 2 and a second metal claw plate 3 adapted thereto; further comprises a protective portion 4 coaxially arranged with the first metal claw plate 2 and the second metal claw plate 3; the protective portion 4 comprises a fixing ring 5 arranged parallel to each other; a protective tube 6 is rotatably arranged between the two fixing rings 5; an avoidance groove 7 is provided on the outer peripheral side of the protective tube 6, and spiral grooves 8 are symmetrically provided on the inner peripheral side of the protective tube 6 on both sides of the avoidance groove 7; an ear plate is fixed to the inner peripheral side of the fixing ring 5 9; a guide portion 10 is fixed between the two ear plates 9; sleeves 11 are fixed to the sides of the first metal claw plate 2 and the second metal claw plate 3; an annular groove 12 is provided on the outer peripheral side of the sleeve 11; the annular groove 12 is rotatably matched with a support portion 13; the support portion 13 includes a support ring 14 that rotates in the annular groove 12; a support rod 15 and a T-shaped plate 16 are fixed to the peripheral side of the support ring 14 in sequence; a ball head 17 that slides with the spiral groove 8 is fixed to the bottom end of the support rod 15; the T-shaped plate 16 slides with the guide portion 10.

[0046] Working principle of the first embodiment:

[0047] The first metal claw plate 2 and the second metal claw plate 3 are symmetrically and coaxially arranged inside the protective tube 6 in the protective part. The spiral groove 8 inside the protective tube 6 is driven to rotate by rotating, thereby driving the two ball heads 17 to slide along the corresponding spiral grooves 8, and then driving the two support parts 13 to move closer or farther away synchronously, thereby realizing the closing or separation of the first metal claw plate 2 and the second metal claw plate 3. In this process, there is no need to disassemble and remove the coupling from the driving end and the driven end, and the installation and disassembly of the plum blossom pad 1 can be completed, thereby improving work efficiency.

[0048] For example 2, please refer to Figure 1-15 The second embodiment makes the following improvements on the basis of the first embodiment. Specifically, a slide groove 18 is provided on the inner side of the sleeve 11; a driving shaft 19 and a driven shaft 20 are slidably arranged inside the two sleeves 11 respectively; a clamping groove 21 is provided on the outer side of the driving shaft 19 and the driven shaft 20; a positioning pin plate 22 is clamped in the clamping groove 21; the positioning pin plate 22 is slidably matched with the corresponding slide groove 18.

[0049] Gear rings 23 are symmetrically fixed to the outer peripheral side of the protection tube 6; mounting plates 24 are fixed to the outer peripheral side of the fixing ring 5; a rotating shaft 25 is rotatably arranged between the two mounting plates 24; gears 26 meshing with the corresponding gear rings 23 are symmetrically fixed to the rotating shaft 25.

[0050] A plurality of positioning holes 27 are evenly arranged on the side of the mounting plate 24; a first fixing plate 28 is fixed to one end of the rotating shaft 25; a return spring 29 is fixed to the side of the first fixing plate 28; a second fixing plate 30 is fixed to the end of the return spring 29; a plurality of positioning rods 31 are evenly fixed to the side of the second fixing plate 30 and are slidably arranged on the side of the first fixing plate 28; the positioning rods 31 are plugged into and matched with the positioning holes 27.

[0051] A curved mounting cavity 32 connected to one end of the avoidance groove 7 is provided inside the protective tube 6; a rotating portion 33 is slidably provided inside the curved mounting cavity 32; the rotating portion 33 includes an arc-shaped baffle plate 34 rotatably provided in the curved mounting cavity 32; a plurality of ventilation holes 35 are evenly provided on the outer peripheral side surface of the arc-shaped baffle plate 34; a plurality of arc-shaped springs 36 are evenly fixed on one end of the arc-shaped baffle plate 34; the other end of the arc-shaped spring 36 is fixed to the inner bottom surface of the curved mounting cavity 32; a handle 37 is fixed to the side of the arc-shaped baffle plate 34 away from the arc-shaped spring 36.

[0052] The side of the ear plate 9 is symmetrically provided with guide holes 38; the guide part 10 includes a connecting plate 39; the side of the connecting plate 39 is symmetrically fixed with guide rods 40 that slide with the guide holes 38; the side of the T-shaped plate 16 is symmetrically provided with sliding holes 41 that slide with the guide rods 40; the end of the guide rod 40 is screwed with a fastening nut 42.

[0053] A plurality of first teeth claws 43 and a second teeth claw 44 are fixed to the other opposite sides of the first metal claw plate 2 and the second metal claw plate 3 respectively; the plum blossom pad 1 includes an elastic ring 45; a plurality of elastomers 46 are evenly fixed to the outer peripheral side of the elastic ring 45; a plug-in column 47 which is plugged into the elastic ring 45 is fixed to the side of the second metal claw plate 3; the first teeth claw and the second teeth claw are meshed with each other; the elastomer 46 is located in the gap between the first teeth claw 43 and the second teeth claw 44.

[0054] Working principle of the second embodiment:

[0055] First, slide the two guide rods 40 into the sliding holes 41 on the side of the T-shaped plate on the two support parts 13, and then insert the two guide rods 40 into the two guide holes 38 on the side of the ear plate 9, tighten the fastening nuts, complete the installation of the two groups of support parts 13 and the guide part 10, and at the same time, complete the fixed installation between the guide part 10 and the two ear plates 9; by respectively inserting the two groups of positioning pin plates 22 into the grooves 21 on the outer peripheral sides of the driving shaft 19 and the driven shaft 20, and sliding the positioning pin plates 22 on the driving shaft 19 and the driven shaft 20 along the corresponding sliding grooves 18 into the corresponding sleeves 11, and fixing the mounting plate 24 at the corresponding mounting position by tightening the bolts, the assembly of the coupling with the driving shaft 19 and the driven shaft 20 is completed.

[0056] The assembly process of the plum blossom pad 1 is as follows: pull the second fixed plate 30 outward to pull the positioning rod 31 out of the corresponding positioning hole 27, the reset spring 29 is stretched, and the restriction on the protective tube 6 is released. The first fixed plate 28 is rotated to drive the rotating shaft 25 and the two gears 26 to rotate, thereby driving the protective tube 6 to rotate, and then driving the two spiral grooves 8 to rotate, so that the ball heads 17 on the two support parts 13 slide close to each other along the corresponding spiral grooves 8, and the elastic ring 45 on the plum blossom pad 1 is sleeved in the plug column 47. The first metal claw plate 2 and the second metal claw plate 3 are close to each other until the first tooth claw 43 and the second tooth claw 44 are meshed with each other, and the elastomer 46 is located in the gap between the first tooth claw 43 and the second tooth claw 44. At this time, the positioning rod 31 is just coaxially arranged with the corresponding positioning hole 27.

[0057] After completing the assembly of the plum blossom pad 1, release the hand holding the second fixed plate 30, and under the elastic reset force of the reset spring 29, drive each group of positioning rods 31 to be inserted into the corresponding positioning holes 27 to limit the protection tube 6 and prevent the protection tube 6 from rotating.

[0058] Disassembly process of plum blossom pad 1: stop the driving end to prevent the driving shaft 19 from rotating, pull the second fixed disk 30 outward, so that the positioning rod 31 is pulled out from the corresponding positioning hole 27, the reset spring 29 is stretched, and the restriction on the protective tube 6 is released, and the first fixed disk 28 is rotated in the opposite direction, so that the ball heads 17 on the two supporting parts 13 slide away along the corresponding spiral grooves 8, so that the first metal claw disk 2 and the second metal claw disk 3 are separated, so that the plum blossom pad 1 is exposed.

[0059] Rotate and open the arc baffle 34 so that the avoidance groove 7 is opened, and the elastic ring 45 on the plum blossom pad 1 is sleeved on the plug post 47 on the second metal claw plate 3, and the damaged plum blossom pad 1 can be removed from the plug post 47. During this process, the sleeve 11 on the first metal claw plate 2 and the second metal claw plate 3 slide along the locating pin plate 22 on the drive shaft 19 and the locating pin plate 22 on the driven shaft 20 respectively. During the installation and disassembly process of the plum blossom pad 1, there is no need to remove the coupling from the drive shaft 19 and the driven shaft 20, and the installation and disassembly of the plum blossom pad 1 can be completed, thereby improving work efficiency.

[0060] For example 3, please refer to Figure 1-15 , this third embodiment makes the following improvements on the basis of the second embodiment. Specifically, a plurality of ejection holes 48 are evenly opened on the side of the second metal claw disk 3; an extension ring 49 coaxial with the second metal claw disk 3 is fixed on the side; a retaining ring 50 is fixed on the end of the extension ring 49; an ejection piece 51 is slidably provided on the inner wall of the extension ring 49; the ejection piece 51 includes a slip ring 52 slidably provided between the extension ring 49 and the sleeve 11; a plurality of ejector rods 53 plug-fitted with the corresponding ejection holes 48 are evenly fixed on the side of the slip ring 52; a connecting spring 54 sleeved on the corresponding ejector rod 53 is fixed between the slip ring 52 and the second metal claw disk 3.

[0061] A mounting ring 55 coaxial with the fixing ring 5 is arranged inside the fixing ring 5; a connecting plate 56 is symmetrically fixed between the mounting ring 55 and the fixing ring 5; a stopper 57 is symmetrically fixed on the side of the mounting ring 55; and a plurality of exhaust fan blades 58 are evenly fixed on the outer peripheral side of the corresponding sleeve 11 on the first metal claw plate 2.

[0062] Working principle of the third embodiment:

[0063] The ball heads 17 on the two support parts 13 slide away along the corresponding spiral grooves 8, so that the first metal claw plate 2 and the second metal claw plate 3 are separated. During this process, the slip ring 52 is squeezed by the push rod 57, so that the push rod 53 pushes the plum blossom pad 1 out of the plug column 47 on the second metal claw plate 3, thereby improving the disassembly efficiency of the plum blossom pad 1 in the coupling.

[0064] By controlling the start-up drive shaft 19 to drive the first metal claw plate 2 and the second metal claw plate 3 to rotate synchronously, the drive shaft 19 and the driven shaft 20 in different mechanisms are firmly connected, so that the drive shaft 19 and the driven shaft 20 can rotate together and can transmit motion and torque; the sleeve 11 on the first metal claw plate 2 drives the exhaust fan blades 58 to rotate during the rotation process, dissipates heat to the transmission structure inside the protective tube 6, and improves the service life of the coupling. Through the setting of the protective tube 6 and the arc-shaped baffle 34, the rotating parts of the coupling are placed inside it, which plays a protective effect, prevents the coupling claws from breaking and flying out due to failure, and improves the safety of operation.

[0065] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0066] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0067] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0069] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A coupling for a continuous rolling mill, comprising a plum blossom washer (1) and a first metal claw plate (2) and a second metal claw plate (3) adapted thereto; Features: It also includes a protection part (4) arranged coaxially with the first metal claw plate (2) and the second metal claw plate (3); the protection part (4) includes fixing rings (5) arranged parallel to each other; a protection tube (6) is rotatably arranged between the two fixing rings (5); an avoidance groove (7) is provided on the outer peripheral side of the protection tube (6), and spiral grooves (8) are symmetrically provided on the inner peripheral side of the protection tube (6) on both sides of the avoidance groove (7); an ear plate (9) is fixed to the inner peripheral side of the fixing ring (5); and a guide part (10) is fixed between the two ear plates (9); The first metal claw plate (2) and the second metal claw plate (3) are both fixed with sleeves (11) on their sides; an annular groove (12) is provided on the outer peripheral side of the sleeve (11); and a support portion (13) is rotatably engaged with the annular groove (12); The support portion (13) comprises a support ring (14) which rotates in the annular groove (12); a support rod (15) and a T-shaped plate (16) are fixed in sequence on the circumferential side of the support ring (14); a ball head (17) which is slidably engaged with the spiral groove (8) is fixed at the bottom end of the support rod (15); the T-shaped plate (16) is slidably engaged with the guide portion (10); The inner side surface of the sleeve (11) is provided with a slide groove (18); a driving shaft (19) and a driven shaft (20) are slidably arranged inside the two sleeves (11) respectively; a clamping groove (21) is provided on the outer side surface of the driving shaft (19) and the driven shaft (20); a positioning pin plate (22) is clamped in the clamping groove (21); the positioning pin plate (22) is slidably matched with the corresponding slide groove (18); A gear ring (23) is symmetrically fixed to the outer peripheral side of the protection tube (6); a mounting plate (24) is fixed to the outer peripheral side of the fixing ring (5); a rotating shaft (25) is rotatably arranged between the two mounting plates (24); and gears (26) meshing with corresponding gear rings (23) are symmetrically fixed to the rotating shaft (25); A plurality of positioning holes (27) are evenly formed on the side of the mounting plate (24); a first fixing plate (28) is fixed to one end of the rotating shaft (25); a return spring (29) is fixed to the side of the first fixing plate (28); a second fixing plate (30) is fixed to the end of the return spring (29); a plurality of positioning rods (31) are evenly fixed to the side of the second fixing plate (30) and are slidably arranged on the side of the first fixing plate (28); the positioning rods (31) are plug-fitted into the positioning holes (27); The protective tube (6) is provided with a curved surface installation cavity (32) in communication with one end of the avoidance groove (7); a rotating portion (33) is slidably provided in the curved surface installation cavity (32); the rotating portion (33) comprises an arc-shaped baffle (34) rotatably provided in the curved surface installation cavity (32); a plurality of ventilation holes (35) are evenly provided on the outer peripheral side surface of the arc-shaped baffle (34); a plurality of arc-shaped springs (36) are evenly fixed to one end of the arc-shaped baffle (34); the other end of the arc-shaped spring (36) is fixed to the inner bottom surface of the curved surface installation cavity (32); a handle (37) is fixed to the side of the arc-shaped baffle (34) away from the arc-shaped spring (36); The side surface of the ear plate (9) is symmetrically provided with guide holes (38); the guide portion (10) comprises a connecting plate (39); guide rods (40) slidably matched with the guide holes (38) are symmetrically fixed to the side surface of the connecting plate (39); sliding holes (41) slidably matched with the guide rods (40) are symmetrically provided on the side surface of the T-shaped plate (16); and a fastening nut (42) is screwed to the end of the guide rod (40); A plurality of ejection holes (48) are evenly arranged on the side of the second metal claw disk (3); an extension ring (49) coaxial with the second metal claw disk (3) is fixed on the side of the second metal claw disk (3); a retaining ring (50) is fixed at the end of the extension ring (49); an ejection member (51) is slidably arranged on the inner wall of the extension ring (49); the ejection member (51) comprises a slip ring (52) slidably arranged between the extension ring (49) and the sleeve (11); a plurality of ejector rods (53) pluggably engaged with corresponding ejection holes (48) are evenly fixed on the side of the slip ring (52); and a connecting spring (54) sleeved on the corresponding ejector rod (53) is fixed between the slip ring (52) and the second metal claw disk (3).

2. A coupling for a continuous rolling mill according to claim 1, Features: A plurality of first tooth claws (43) and a second tooth claw (44) are fixed to the other opposite sides of the first metal claw plate (2) and the second metal claw plate (3); the plum blossom pad (1) comprises an elastic sleeve (45); a plurality of elastic bodies (46) are evenly fixed to the outer peripheral side of the elastic sleeve (45); a plug post (47) pluggably matched with the elastic sleeve (45) is fixed to the side of the second metal claw plate (3); The first tooth claw and the second tooth claw are meshed with each other; the elastic body (46) is located in the gap between the first tooth claw (43) and the second tooth claw (44).

3. A coupling for a continuous rolling mill according to claim 2, Features: A mounting ring (55) coaxial with the fixing ring (5) is arranged inside the fixing ring (5); a connecting plate (56) is symmetrically fixed between the mounting ring (55) and the fixing ring (5); a stopper (57) is symmetrically fixed on the side of the mounting ring (55); and a plurality of exhaust fan blades (58) are evenly fixed on the outer peripheral side of the corresponding sleeve (11) on the first metal claw plate (2).

Images