Engine cylinder cover forging and pressing machining device for automobile part machining

Abstract

The invention relates to the technical field of engine cylinder cover forging and pressing, and discloses an engine cylinder cover forging and pressing machining device for automobile part machining, which comprises a bottom plate and a shifting part, a forging press is arranged at the top of the bottom plate, the shifting part comprises a bent plate, the bottom of the bent plate is fixedly connected with the top of the bottom plate, and the bottom of the bent plate is fixedly connected with the bottom of the bottom plate. The end, away from the bottom plate, of the bent plate is fixedly connected with a fixing frame, and the bottom of the fixing frame is fixedly connected with a shifting ring. The shifting part is arranged above the forging press and lifts the clamping part through the adjusting part, so that when the clamping part clamps the automobile engine cylinder cover, the shifting part can be stressed and support the clamping part, and the situation that an operator exerts force to turn over the automobile engine cylinder cover is avoided; when the clamping component clamps and turns over the automobile engine cylinder cover, the clamping component is stressed to push the shifting component to move.

Description

Technical Field

[0001] The invention relates to the technical field of engine cylinder head forging, in particular to an engine cylinder head forging processing device used for processing automobile parts. Background Art

[0002] Forging is the combined name of forging and stamping. It is a forming method that uses a forging machine to apply pressure to a metal blank to cause it to undergo plastic deformation, thereby obtaining a product of the desired shape and size. Forging is the process of applying pressure to the blank through the hammer, anvil, punch, or die of a forging machine to cause it to undergo plastic deformation, thereby obtaining a product of the desired shape and size. During the forging process, the blank undergoes significant plastic deformation as a whole, and there is a large amount of plastic flow. Forging, rolling, drawing, etc. in the metallurgical industry are all plastic processes, but forging is mainly used to produce metal products.

[0003] During the forging process of the automobile engine cylinder head, the operator needs to use pliers to constantly flip the automobile engine cylinder head so that the forging machine can perform plastic processing on multiple surfaces of the automobile engine cylinder head. Using pliers to flip the automobile engine cylinder head will cause the operator to work hard, and the operator also needs to use a lot of force to clamp the automobile engine cylinder head for flipping, which makes it very laborious for the operator to flip the automobile engine cylinder head. Summary of the invention

[0004] The object of the present invention is to provide an engine cylinder head forging processing device for automobile parts processing to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is an engine cylinder head forging processing device for automobile parts processing, comprising a base plate, a forging machine is arranged on the top of the base plate, and further comprising:

[0007] A displacement component, the displacement component comprises a bent plate, the bottom of the bent plate is fixedly connected to the top of the bottom plate, one end of the bent plate away from the bottom plate is fixedly connected to a fixing frame, and the bottom of the fixing frame is fixedly connected to a displacement ring;

[0008] An adjusting component, the adjusting component comprises a limiting frame, an inner wall of the limiting frame is fixedly connected to a power device, an output end of the power device is fixedly connected to a rotating rod, and a surface of the rotating rod is fixedly connected to a groove disk;

[0009] The clamping component includes a shaft rod, a turntable is rotatably connected to the surface of the shaft rod, a clamping plate is fixedly connected to the surface of the turntable, a clamping block is fixedly connected to the end of the clamping plate away from the turntable, a force plate is fixedly connected to the end of the turntable away from the clamping plate, and a grip rod is fixedly connected to the end of the force plate away from the turntable.

[0010] Further, the displacement component comprises an annular groove, the annular groove is provided at the bottom of the displacement ring, an arc block is slidably connected to the inner wall of the annular groove, a through-hole plate is fixedly connected to the bottom of the arc block, and a slide plate is fixedly connected to the inner wall bottom of the through-hole plate;

[0011] The inner wall of the through-hole plate is slidably connected with a moving frame, the inner wall of the moving frame is rotatably connected with a rolling rod, and the end of the moving frame is fixedly connected with a rectangular frame.

[0012] Furthermore, one end of the bent plate away from the bottom plate extends to above the forging machine, the shift ring is located above the forging machine, the bottom of the arc block extends to the bottom outer end of the annular groove, and the end of the through-hole plate extends to the outer end of the arc block.

[0013] Furthermore, the top of the inner wall of the movable frame contacts the top of the inner wall of the slide plate, the bottom of the roller contacts the bottom of the inner wall of the slide plate, the end of the movable frame extends to the outer end of the through-hole plate, and the center of the rectangular frame is located below the through-hole plate.

[0014] Further, the adjustment component comprises a fixing plate, the top of the fixing plate is fixedly connected with a steel rope, the top of the steel rope is fixedly connected with the inner wall of the groove plate, and the bottom of the fixing plate is fixedly connected with a limit ring;

[0015] The inner wall of the limiting ring is provided with a circular groove, and the end of the limiting frame is fixedly connected to the surface of the rectangular frame.

[0016] Furthermore, the rotating rod is located below the through-hole plate, the groove plate is located below the rectangular frame, and the number of the limiting rings is two, and the two limiting rings are symmetrically arranged with the fixing plate as the center.

[0017] Further, the clamping component comprises a rotating ring, the inner wall of the rotating ring is rotatably connected to the inner wall of the circular groove, a cross fixing rod is fixedly connected to the inner wall of the rotating ring, a cross is fixedly connected to the surface of the cross fixing rod, a stabilizing ring is fixedly connected to the surface of the cross, and the bottom of the stabilizing ring is fixedly connected to the top of the shaft;

[0018] The center tooth of the rotating ring extends to the outer end of the circular groove, and the cross is located at the center of the surface of the cross fixing rod.

[0019] Furthermore, there are two turntables, which are arranged up and down, and there are two clamping plates, whose ends close to the turntable are close to each other, and whose ends away from the turntable are away from each other, and the stabilizing ring is located at the end where the two limit rings are close to each other.

[0020] The present invention has the following beneficial effects:

[0021] The present invention provides a displacement component above the forging machine, and the displacement component hoists the clamping component through the adjusting component, so that when the clamping component clamps the automobile engine cylinder head, the displacement component can be subjected to force and support the clamping component, thereby avoiding the operator from exerting force when flipping the automobile engine cylinder head. When the clamping component clamps and flips the automobile engine cylinder head, the force exerted on the clamping component will push the displacement component to move. The position of the clamping component is adjusted by the displacement component, thereby improving the convenience of the clamping component in flipping the automobile engine cylinder head. The adjusting component can adjust the height of the clamping component, and at the same time, the clamping component can push the automobile engine cylinder head to rotate with the adjusting component as a fulcrum, thereby reducing the labor intensity of the operator when forging and flipping the automobile engine cylinder head.

[0022] The circular arc block of the present invention can slide inside the circular ring groove, so that the clamping component can rotate around the forging machine inside the circular ring groove, so that the angle can be adjusted when the clamping component flips the automobile engine cylinder head, and the moving frame can slide inside the through-hole plate, and the clamping component can adjust the distance between the clamping component and the forging machine through the moving frame, so that the operator can better use the clamping component to flip the automobile engine cylinder head. The circular arc block is slidably connected to the inner wall of the circular ring groove to support the clamping component, and the operator can reduce the force used when using the clamping component to clamp the automobile engine cylinder head.

[0023] The invention starts a power device to drive the rotating rod to rotate, and the rotating rod drives the groove disk to reel in and release the steel rope when rotating, and the height of the clamping component is adjusted by using the steel rope. When an operator uses the clamping component to clamp the automobile engine cylinder head, the clamping component rotates with the limiting ring as a fulcrum, so that the operator can easily clamp the automobile engine cylinder head through the limiting ring, thereby reducing the labor intensity of the operator's operation.

[0024] The operator of the present invention pushes the gripping rod to move closer to each other, and the force-bearing plate rotates on the surface of the shaft rod as the gripping rod pushes the turntable, so that the clamping plate can push the clamping blocks to move closer to each other and clamp and fix the cylinder head of the automobile engine; when the gripping rod is pushed to move upward, the shaft rod will push the cross to rotate through the stabilizing ring, and at this time the clamping block will move downward through the movement of the gripping rod, thereby improving the convenience of the clamping block when in use; when the cross rotates, it will push the rotating ring to rotate inside the circular groove, and the circular groove is used to support the stabilizing ring, thereby improving the stability of the clamping block when in use.

[0025] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below. 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 creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the bottom plate structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the overall structure of the displacement component of the present invention;

[0030] Figure 4 Another structural schematic diagram of the displacement component of the present invention;

[0031] Figure 5 It is a schematic diagram of the cross-sectional structure of the through-hole plate of the present invention;

[0032] Figure 6 It is a schematic diagram of the overall structure of the adjusting component of the present invention;

[0033] Figure 7 It is a schematic diagram of the overall structure of the clamping component of the present invention;

[0034] Figure 8 Another structural schematic diagram of the clamping component of the present invention.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] In the figure: 1, bottom plate; 2, forging machine; 3, shifting part; 4, adjusting part; 5, clamping part; 10, fixed frame; 11, bending plate; 12, shifting ring; 13, circular ring groove; 14, rectangular frame; 15, arc block; 16, slide plate; 17, through-hole plate; 18, moving frame; 19, rolling rod; 20, limiting frame; 21, rotating rod; 22, power device; 23, groove plate; 24, steel rope; 25, fixed plate; 26, limiting ring; 27, circular groove; 30, turntable; 31, clamping plate; 32, force plate; 33, grip rod; 34, clamping block; 35, cross fixing rod; 36, rotating ring; 37, shaft rod; 38, stabilizing ring; 39, cross. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-Figure 8 As shown, the present invention is an engine cylinder head forging processing device for automobile parts processing, comprising a base plate 1, a forging machine 2 is arranged on the top of the base plate 1, and further comprising:

[0039] The displacement component 3 includes a bent plate 11, the bottom of the bent plate 11 is fixedly connected to the top of the bottom plate 1, one end of the bent plate 11 away from the bottom plate 1 is fixedly connected to a fixing frame 10, and the bottom of the fixing frame 10 is fixedly connected to a displacement ring 12;

[0040] The adjusting component 4 includes a limiting frame 20, the inner wall of the limiting frame 20 is fixedly connected to a power device 22, the output end of the power device 22 is fixedly connected to a rotating rod 21, and the surface of the rotating rod 21 is fixedly connected to a groove plate 23;

[0041] The clamping component 5 includes a shaft 37, the surface of the shaft 37 is rotatably connected to the turntable 30, the surface of the turntable 30 is fixedly connected to the clamping plate 31, the end of the clamping plate 31 away from the turntable 30 is fixedly connected to the clamping block 34, and the end of the turntable 30 away from the clamping plate 31 is fixedly connected to the force plate 32. The present invention is provided with a displacement component 3 above the forging machine 2, and the displacement component 3 hoists the clamping component 5 through the adjusting component 4, so that when the clamping component 5 clamps the automobile engine cylinder head, the displacement component 3 can be stressed and support the clamping component 5, so as to avoid the operator from causing damage to the automobile engine cylinder head. The degree of force applied when the engine cylinder head is flipped. When the clamping component 5 clamps and flips the automobile engine cylinder head, the force applied to the clamping component 5 will push the displacement component 3 to move. The position of the clamping component 5 is adjusted by the displacement component 3 to improve the convenience of the clamping component 5 when flipping the automobile engine cylinder head. The adjusting component 4 can adjust the height of the clamping component 5. At the same time, the clamping component 5 can push the automobile engine cylinder head to rotate with the adjusting component 4 as a fulcrum, thereby reducing the labor of the operator when forging and flipping the automobile engine cylinder head. The end of the force plate 32 away from the turntable 30 is fixedly connected to a grip rod 33.

[0042] The displacement component 3 includes an annular groove 13, which is provided at the bottom of the displacement ring 12, an arc block 15 is slidably connected to the inner wall of the annular groove 13, a through-hole plate 17 is fixedly connected to the bottom of the arc block 15, and a slide plate 16 is fixedly connected to the bottom of the inner wall of the through-hole plate 17;

[0043] The inner wall of the through-hole plate 17 is slidably connected to a moving frame 18 , the inner wall of the moving frame 18 is rotatably connected to a roller 19 , and the end of the moving frame 18 is fixedly connected to the rectangular frame 14 .

[0044] The end of the bent plate 11 away from the base plate 1 extends to the top of the forging press 2. The arc block 15 of the present invention can slide inside the annular groove 13, so that the clamping component 5 can rotate around the forging press 2 inside the annular groove 13, so that the angle can be adjusted when the clamping component 5 flips the automobile engine cylinder head, and the movable frame 18 can slide inside the through-hole plate 17. The clamping component 5 can adjust the distance between it and the forging press 2 through the movable frame 18, so that the operator can better use the clamping component 5 to flip the automobile engine cylinder head. The sliding connection between the arc block 15 and the inner wall of the annular groove 13 will support the clamping component 5, and the operator can reduce the force when using the clamping component 5 to clamp the automobile engine cylinder head. The shift ring 12 is located above the forging press 2, and the bottom of the arc block 15 extends to the bottom outer end of the annular groove 13, and the end of the through-hole plate 17 extends to the outer end of the arc block 15.

[0045] The top of the inner wall of the movable frame 18 contacts the top of the inner wall of the slide plate 16, the bottom of the roller 19 contacts the bottom of the inner wall of the slide plate 16, the end of the movable frame 18 extends to the outer end of the through-hole plate 17, and the center of the rectangular frame 14 is located below the through-hole plate 17.

[0046] The adjusting component 4 includes a fixing plate 25, a steel rope 24 is fixedly connected to the top of the fixing plate 25, the top of the steel rope 24 is fixedly connected to the inner wall of the groove plate 23, and a limiting ring 26 is fixedly connected to the bottom of the fixing plate 25;

[0047] A circular groove 27 is formed on the inner wall of the limiting ring 26 , and the end of the limiting frame 20 is fixedly connected to the surface of the rectangular frame 14 .

[0048] The rotating rod 21 is located below the through-hole plate 17, and the groove disk 23 is located below the rectangular frame 14. The starting power device 22 of the present invention drives the rotating rod 21 to rotate. When the rotating rod 21 rotates, it drives the groove disk 23 to reel in and release the steel rope 24. The steel rope 24 is used to adjust the height of the clamping component 5. When the operator uses the clamping component 5 to clamp the automobile engine cylinder head, the clamping component 5 rotates with the limit ring 26 as the fulcrum, so that the operator can easily clamp the automobile engine cylinder head through the limit ring 26, thereby reducing the labor intensity of the operator's operation. There are two limit rings 26, and the two limit rings 26 are symmetrically arranged with the fixed plate 25 as the center.

[0049] The clamping component 5 includes a rotating ring 36, the inner wall of the rotating ring 36 is rotatably connected to the inner wall of the circular groove 27, a cross fixing rod 35 is fixedly connected to the inner wall of the rotating ring 36, a cross 39 is fixedly connected to the surface of the cross fixing rod 35, a stabilizing ring 38 is fixedly connected to the surface of the cross 39, and the bottom of the stabilizing ring 38 is fixedly connected to the top of the shaft 37;

[0050] The center tooth of the rotating ring 36 extends to the outer end of the circular groove 27 , and the cross 39 is located at the center of the surface of the cross fixing rod 35 .

[0051] There are two turntables 30, which are arranged up and down. The operator of the present invention pushes the gripping rod 33 to move closer to each other, and the force plate 32 rotates on the surface of the shaft 37 as the gripping rod 33 pushes the turntable 30, so that the clamping plate 31 can push the clamping block 34 to move closer to each other and clamp and fix the cylinder head of the automobile engine. When the gripping rod 33 is pushed to move upward, the shaft 37 will push the cross 39 to rotate through the stabilizing ring 38. At this time, the clamping block 34 will move downward through the movement of the gripping rod 33, thereby improving the convenience of the clamping block 34 when in use. When the cross 39 rotates, it will push the rotating ring 36 to rotate inside the circular groove 27, and the circular groove 27 is used to support the stabilizing ring 38, thereby improving the stability of the clamping block 34 when in use. There are two clamping plates 31, and the ends of the two clamping plates 31 close to the turntable 30 are close to each other, and the ends of the two clamping plates 31 away from the turntable 30 are away from each other. The stabilizing ring 38 is located at the ends of the two limit rings 26 close to each other.

[0052] When in use, a displacement component 3 is arranged above the forging machine 2. The displacement component 3 hoists the clamping component 5 through the adjusting component 4, so that when the clamping component 5 clamps the automobile engine cylinder head, the displacement component 3 can be subjected to force and support the clamping component 5, thereby avoiding the operator from exerting force when flipping the automobile engine cylinder head. When the clamping component 5 clamps and flips the automobile engine cylinder head, the force on the clamping component 5 will push the displacement component 3 to move. The position of the clamping component 5 is adjusted by the displacement component 3 to improve the convenience of the clamping component 5 when flipping the automobile engine cylinder head. The adjusting component 4 can adjust the height of the clamping component 5, and at the same time When the cylinder head of the automobile engine is turned, the clamping component 5 can use the adjusting component 4 as a fulcrum to push the cylinder head of the automobile engine to rotate, thereby reducing the labor intensity of the operator when forging and flipping the cylinder head of the automobile engine. The arc block 15 can slide inside the annular groove 13, so that the clamping component 5 can rotate around the forging press 2 inside the annular groove 13, so that the angle can be adjusted when the clamping component 5 flips the cylinder head of the automobile engine. The moving frame 18 can slide inside the through-hole plate 17, and the distance between the clamping component 5 and the forging press 2 can be adjusted by the moving frame 18, so that the operator can better use the clamping component 5 to flip the cylinder head of the automobile engine. The arc block 15 and the arc block 18 can be adjusted to the distance between the clamping component 5 and the forging press 2. The inner wall sliding connection of the annular groove 13 supports the clamping component 5. The operator can reduce the force used when using the clamping component 5 to clamp the automobile engine cylinder head. The power device 22 is started to drive the rotating rod 21 to rotate. When the rotating rod 21 rotates, it drives the groove disk 23 to reel and release the steel rope 24. The height of the clamping component 5 is adjusted by the steel rope 24. When the operator uses the clamping component 5 to clamp the automobile engine cylinder head, the clamping component 5 rotates with the limit ring 26 as the fulcrum, so that the operator can easily clamp the automobile engine cylinder head through the limit ring 26, reducing the labor intensity of the operator's operation. The operator pushes the gripping rod 33 move closer to each other, and the force-bearing plate 32 rotates on the surface of the shaft 37 as the handle 33 pushes the turntable 30, so that the clamping plate 31 can push the clamping block 34 to move closer to each other and clamp and fix the automobile engine cylinder head. When the handle 33 is pushed to move upward, the shaft 37 will push the cross 39 to rotate through the stabilizing ring 38. At this time, the clamping block 34 will move downward through the movement of the handle 33, thereby improving the convenience of the clamping block 34 when in use. When the cross 39 rotates, it will push the rotating ring 36 to rotate inside the circular groove 27, and the circular groove 27 is used to support the stabilizing ring 38, thereby improving the stability of the clamping block 34 when in use.

[0053] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An engine cylinder head forging device for automobile parts processing, comprising a base plate (1), a forging machine (2) is arranged on the top of the base plate (1), characterized in that: Also includes: A displacement component (3), the displacement component (3) comprising a bent plate (11), the bottom of the bent plate (11) being fixedly connected to the top of the bottom plate (1), one end of the bent plate (11) away from the bottom plate (1) being fixedly connected to a fixing frame (10), and the bottom of the fixing frame (10) being fixedly connected to a displacement ring (12); An adjusting component (4), the adjusting component (4) comprising a limiting frame (20), the inner wall of the limiting frame (20) being fixedly connected to a power device (22), the output end of the power device (22) being fixedly connected to a rotating rod (21), and the surface of the rotating rod (21) being fixedly connected to a groove disk (23); A clamping component (5), the clamping component (5) comprising a shaft (37), the surface of the shaft (37) being rotatably connected to a turntable (30), the surface of the turntable (30) being fixedly connected to a clamping plate (31), the end of the clamping plate (31) away from the turntable (30) being fixedly connected to a clamping block (34), the end of the turntable (30) away from the clamping plate (31) being fixedly connected to a force-bearing plate (32), and the end of the force-bearing plate (32) away from the turntable (30) being fixedly connected to a gripping rod (33).

2. The engine cylinder head forging processing device for automobile parts processing according to claim 1 is characterized in that: The displacement component (3) comprises an annular groove (13), the annular groove (13) is arranged at the bottom of the displacement ring (12), the inner wall of the annular groove (13) is slidably connected to a circular arc block (15), the bottom of the circular arc block (15) is fixedly connected to a through-hole plate (17), and the bottom of the inner wall of the through-hole plate (17) is fixedly connected to a slide groove plate (16); The inner wall of the through-hole plate (17) is slidably connected to a moving frame (18), the inner wall of the moving frame (18) is rotatably connected to a roller (19), and the end of the moving frame (18) is fixedly connected to a rectangular frame (14).

3. The engine cylinder head forging processing device for automobile parts processing according to claim 2 is characterized in that: One end of the bent plate (11) away from the base plate (1) extends to the top of the forging machine (2), the shift ring (12) is located above the forging machine (2), the bottom of the arc block (15) extends to the bottom outer end of the annular groove (13), and the end of the through-hole plate (17) extends to the outer end of the arc block (15).

4. The engine cylinder head forging device for automobile parts processing according to claim 3 is characterized in that: The top of the inner wall of the movable frame (18) contacts the top of the inner wall of the slide plate (16), the bottom of the rolling rod (19) contacts the bottom of the inner wall of the slide plate (16), the end of the movable frame (18) extends to the outer end of the through-hole plate (17), and the center of the rectangular frame (14) is located below the through-hole plate (17).

5. The engine cylinder head forging device for automobile parts processing according to claim 4, characterized in that: The adjusting component (4) comprises a fixing plate (25), the top of the fixing plate (25) is fixedly connected with a steel rope (24), the top of the steel rope (24) is fixedly connected to the inner wall of the groove plate (23), and the bottom of the fixing plate (25) is fixedly connected with a limiting ring (26); The inner wall of the limiting ring (26) is provided with a circular groove (27), and the end of the limiting frame (20) is fixedly connected to the surface of the rectangular frame (14).

6. The engine cylinder head forging device for automobile parts processing according to claim 5, characterized in that: The rotating rod (21) is located below the through-hole plate (17), the groove plate (23) is located below the rectangular frame (14), and there are two limit rings (26), which are symmetrically arranged with the fixed plate (25) as the center.

7. The engine cylinder head forging device for automobile parts processing according to claim 6, characterized in that: The clamping component (5) comprises a rotating ring (36), the inner wall of the rotating ring (36) is rotatably connected to the inner wall of the circular groove (27), the inner wall of the rotating ring (36) is fixedly connected to a cross fixing rod (35), the surface of the cross fixing rod (35) is fixedly connected to a cross (39), the surface of the cross (39) is fixedly connected to a stabilizing ring (38), and the bottom of the stabilizing ring (38) is fixedly connected to the top of the shaft rod (37); The central tooth of the rotating ring (36) extends to the outer end of the circular groove (27), and the cross (39) is located at the center of the surface of the cross fixing rod (35).

8. The engine cylinder head forging device for automobile parts processing according to claim 7, characterized in that: There are two rotating disks (30), which are arranged up and down. There are two clamping plates (31), whose ends close to the rotating disk (30) are arranged close to each other, and whose ends away from the rotating disk (30) are arranged away from each other. The stabilizing ring (38) is located at the ends of the two limiting rings (26) close to each other.

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