Center positioning bearing seat for rolled tube of copper tube blank

Abstract

The utility model discloses a central positioning bearing seat for a rolled tube of a copper tube blank. The central positioning bearing seat comprises a bearing block, a bearing outer ring is fixedly connected into the bearing block, a set of evenly-distributed upper roller grooves are formed in the inner side wall of the bearing outer ring, meanwhile, a bearing inner ring is rotationally connected to the inner side wall of the bearing outer ring, lower roller grooves corresponding to the upper roller grooves in number are formed in the outer surface of the bearing inner ring, and bearing rollers are rotationally connected into the upper roller grooves and the lower roller grooves. A first connecting block is fixedly connected to the upper end of the bearing block, a pipe blank is placed in the bearing inner ring, meanwhile, an external power source drives the pipe blank to rotate, then the pipe blank drives the bearing inner ring to rotate, and when the bearing inner ring rotates, sliding friction between the bearing roller and the bearing outer ring can be converted into rolling friction, so that the bearing effect is improved; meanwhile, when the pipe blank is placed in the bearing inner ring, the connecting rod can convert downward pulling force generated by the bearing block into work applied to the reset spring, and then a certain buffering effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing seats, in particular to a copper tube blank rolling tube center positioning bearing seat. Background Art

[0002] While extruding the tube billet, the rotating roller also drives the internal core rod to rotate. There is an auxiliary equipment bearing seat at the tail of the core rod, and two tapered roller bearings inside to assist the core rod in self-circulation. Because the core rod is too long, there is resistance during the rotation process and the rotation torque is inconsistent, resulting in a set of bearings inside the bearing seat being severely worn and broken, causing the core rod to break at this point during operation, and the pipe rolling mill to have an emergency shutdown. After the emergency shutdown, the tube billet will be stuck in the rotating roller, which will affect production efficiency and cost. Utility Model Content

[0003] The purpose of the utility model is to provide a copper tube billet rolling center positioning bearing seat to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A copper tube blank rolling tube center positioning bearing seat includes a bearing block; a bearing outer ring is fixedly connected to the bearing block, and a group of evenly distributed upper roller grooves are opened on the inner side wall of the bearing outer ring; at the same time, a bearing inner ring is rotatably connected to the inner side wall of the bearing outer ring, and lower roller grooves corresponding to the number of the upper roller grooves are opened on the outer surface of the bearing inner ring; load-bearing rollers are rotatably connected in the upper roller grooves and the lower roller grooves, and a first connecting block is fixedly connected to the upper end of the bearing block.

[0006] Furthermore, it includes a supporting frame; the lower end of the supporting frame is fixedly connected to an electro-hydraulic telescopic rod, the output end of the electro-hydraulic telescopic rod is provided with an extension rod, the lower end of the extension rod is fixedly connected to a second connecting block, and the second connecting block is slidably connected to the first connecting block.

[0007] Furthermore, the lower end of the first connecting block is fixedly connected to the upper connecting shell, the top wall of the upper connecting shell is fixedly connected to the receiving plate, the lower end of the receiving plate is fixedly connected to a group of first rotating rods, the lower end of the first rotating rods is rotatably connected to the connecting rod, and the bottom wall of the bearing block is fixedly connected to the lower connecting shell.

[0008] Furthermore, a group of limiting rods are fixedly connected to the bottom wall of the lower connecting shell, and a group of second rotating rods are slidably connected to the surface of the limiting rods. A return spring is arranged between the second rotating rods, and the return spring is slidably connected to the surface of the limiting rods. The connecting rod is rotated away from one end of the first rotating rod and is connected to the second rotating rod.

[0009] Furthermore, an anti-tensile spring is fixedly connected between the receiving plate and the receiving block, and the lower connecting shell is slidably connected in the upper connecting shell.

[0010] Furthermore, the inner side wall of the bearing inner ring is provided with two opposite clamping grooves.

[0011] By adopting the above technical solution,

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The anti-tensile component can provide an upward tensile force for the bearing block, thereby ensuring that the tube blank can be better supported when placed in the bearing block, thereby ensuring that the tube blank can be further processed;

[0014] 2. At the same time, since the tube blank is placed in the bearing block, the inner ring of the bearing is slidably connected to the outer ring of the bearing through the load-bearing roller. Then, under the action of the external rotating device, the tube blank can rotate on the inner wall of the inner ring of the bearing, and at the same time drive the inner ring of the bearing to rotate, thereby ensuring that a stable fixed point is provided for the tube blank when it rotates, thereby preventing excessive torque from causing an emergency stop of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a copper tube billet rolling center positioning bearing seat;

[0016] Figure 2 This is a schematic diagram of the overall structure of a bearing block in a central positioning bearing seat for copper tube blank rolling;

[0017] Figure 3 It is a schematic diagram of the front cross-sectional structure of a bearing block in a center positioning bearing seat for copper tube blank rolling;

[0018] Figure 4 It is a schematic diagram of the side cross-sectional structure of a bearing block in a center positioning bearing seat for copper tube blank rolling;

[0019] Figure 5 For a utility model Figure 3 A schematic diagram of the local enlarged structure at point A;

[0020] In the figure: 1. Carrying frame; 2. Electro-hydraulic telescopic rod; 3. Extension rod; 4. First connecting block; 5. Carrying block; 6. Bearing outer ring; 7. Bearing inner ring; 8. Second connecting block; 9. Load-bearing roller; 10. Upper roller groove; 11. Lower roller groove; 12. Connecting rod; 13. Upper connecting shell; 14. First rotating rod; 15. Adapter plate; 16. Anti-tensile spring; 17. Adapter block; 18. Lower connecting shell; 19. Limit rod; 20. Second rotating rod; 21. Return spring; 22. Snap-in groove. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0022] See also Figures 1 to 5 The utility model provides an embodiment of a copper tube blank rolling tube center positioning bearing seat, including a bearing block 5; a bearing outer ring 6 is fixedly connected to the bearing block 5, and a group of evenly distributed upper roller grooves 10 are opened on the inner side wall of the bearing outer ring 6. At the same time, the inner side wall of the bearing outer ring 6 is rotatably connected to the bearing inner ring 7, and the outer surface of the bearing inner ring 7 is provided with lower roller grooves 11 corresponding to the number of the upper roller grooves 10. Load-bearing rollers 9 are rotatably connected in the upper roller grooves 10 and the lower roller grooves 11. The upper end of the bearing block 5 is fixedly connected to the first connecting block 4, which is rolled between the lower roller groove 11 and the upper roller groove 10 through the load-bearing roller 9, thereby converting the sliding friction between the bearing outer ring 6 and the bearing inner ring 7 into rolling friction, thereby reducing its friction, thereby ensuring that the tube blank can reduce its work when driving the bearing inner ring 7 to rotate.

[0023] In the embodiment, it includes a carrier frame 1; the lower end of the carrier frame 1 is fixedly connected to an electro-hydraulic telescopic rod 2, the output end of the electro-hydraulic telescopic rod 2 is provided with an extension rod 3, the lower end of the extension rod 3 is fixedly connected to a second connecting block 8, the second connecting block 8 is slidably connected to the first connecting block 4, the lower end of the first connecting block 4 is fixedly connected to an upper connecting shell 13, the inner top wall of the upper connecting shell 13 is fixedly connected to a receiving plate 15, the lower end of the receiving plate 15 is fixedly connected to a group of first rotating rods 14, the lower end of the first rotating rod 14 is rotatably connected to the connecting rod 12, the inner bottom wall of the carrier block 5 is fixedly connected to the lower connecting shell 18, the inner bottom wall of the lower connecting shell 18 is fixedly connected to a group of limiting rods 19, and the surface of the limiting rod 19 is slidably connected to a group of second rotating rods 20, the second A return spring 21 is provided between the rotating rods 20. The return spring 21 is slidably connected to the surface of the limit rod 19. The connecting rod 12 is rotated away from the end of the first rotating rod 14 and connected to the second rotating rod 20. By rotating the two ends of the connecting rod 12 and connecting them to the second rotating rod 20 and the first rotating rod 14, when the lower connecting shell 18 slides in the upper connecting shell 13, the two second rotating rods 20 can slide along the direction of the limit rod 19, and the return spring 21 can be squeezed or stretched to do work. At the same time, the upper connecting shell 13 is connected to the extension rod 3, and the lower connecting shell 18 is connected to the first connecting block 4, thereby transmitting the downward pulling force generated by the bearing block 5 to the return spring 21, further providing stable supporting force for the tube blank.

[0024] In the embodiment, an anti-tensile spring 16 is fixedly connected between the receiving plate 15 and the receiving block 17, the lower connecting shell 18 is slidably connected in the upper connecting shell 13, and two opposing clamping grooves 22 are provided on the inner side wall of the bearing inner ring 7. The anti-tensile spring 16 is rollingly connected near both sides of the inside of the bearing block 5. When the bearing block 5 is tilted, the tilt angle can compress or stretch the anti-tensile spring 16, thereby ensuring that the bearing block 5 can always be corrected in the horizontal direction under the action of external force, and when the tube blank is placed on the inner surface of the bearing inner ring 7, it can be clamped at a suitable angle through the clamping groove 22, thereby better driving the bearing inner ring 7 to rotate, and further converting the friction force.

[0025] By placing the tube blank in the inner ring 7 of the bearing, and at the same time, an external power source drives the tube blank to rotate, and then the tube blank drives the inner ring 7 of the bearing to rotate, when the inner ring 7 of the bearing rotates, the load-bearing roller 9 can convert the sliding friction between it and the outer ring 6 of the bearing into rolling friction, thereby reducing the work it needs to do. At the same time, when the tube blank is placed on the inner ring 7 of the bearing, the connecting rod 12 can convert the downward pulling force generated by the support block 5 into work done on the reset spring 21, thereby having a certain buffering effect, ensuring the stability of the device during the continuous fixation of the tube blank. At the same time, an anti-tensile spring 16 is provided. Under the action of the anti-tensile spring 16, the support block 5 can be ensured to always tend to balance, thereby preventing the support block 5 from tilting.

[0026] The anti-tensile component can provide an upward tensile force to the bearing block 5, thereby ensuring that the tube blank can be better supported when placed in the bearing block 5, thereby ensuring that the tube blank can be further processed;

[0027] At the same time, since the tube blank is placed in the bearing block 5, the bearing inner ring 7 is slidably connected to the bearing outer ring 6 through the load-bearing roller 9. Then, under the action of the external rotating device, the tube blank can rotate on the inner wall of the bearing inner ring 7, and at the same time drive the bearing inner ring 7 to rotate, thereby ensuring that a stable fixed point is provided for the tube blank when it rotates, thereby preventing excessive torque from causing an emergency stop of the machine.

[0028] This specification is described in terms of implementation methods, but not every implementation method contains only one independent technical solution. This narrative style of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A copper tube billet rolling center positioning bearing seat, comprising a bearing block (5); characterized in that: The bearing block (5) is fixedly connected to the bearing outer ring (6), and the inner side wall of the bearing outer ring (6) is provided with a group of evenly distributed upper roller grooves (10). At the same time, the inner side wall of the bearing outer ring (6) is rotatably connected to the bearing inner ring (7). The outer surface of the bearing inner ring (7) is provided with lower roller grooves (11) corresponding to the number of the upper roller grooves (10). Load-bearing rollers (9) are rotatably connected in the upper roller grooves (10) and the lower roller grooves (11). The upper end of the bearing block (5) is fixedly connected to the first connecting block (4).

2. A copper tube billet rolling center positioning bearing seat according to claim 1, characterized in that: The invention also comprises a supporting frame (1); the lower end of the supporting frame (1) is fixedly connected to an electro-hydraulic telescopic rod (2); the output end of the electro-hydraulic telescopic rod (2) is provided with an extension rod (3); the lower end of the extension rod (3) is fixedly connected to a second connecting block (8); and the second connecting block (8) is slidably connected in the first connecting block (4).

3. The copper tube rolling center positioning bearing seat according to claim 1, characterized in that: The lower end of the first connecting block (4) is fixedly connected to an upper connecting shell (13), the inner top wall of the upper connecting shell (13) is fixedly connected to a receiving plate (15), the lower end of the receiving plate (15) is fixedly connected to a group of first rotating rods (14), the lower end of the first rotating rods (14) is rotatably connected to the connecting rod (12), and the inner bottom wall of the bearing block (5) is fixedly connected to the lower connecting shell (18).

4. A copper tube billet rolling center positioning bearing seat according to claim 3, characterized in that: A group of limiting rods (19) are fixedly connected to the inner bottom wall of the lower connecting shell (18); a group of second rotating rods (20) are slidably connected to the surface of the limiting rods (19); a return spring (21) is provided between the second rotating rods (20); the return spring (21) is slidably connected to the surface of the limiting rods (19); and the connecting rod (12) is rotatably connected to the second rotating rod (20) at one end away from the first rotating rod (14).

5. The copper tube blank rolling center positioning bearing seat according to claim 3, characterized in that: An anti-tension spring (16) is fixedly connected between the receiving plate (15) and the receiving block (17), and the lower connecting shell (18) is slidably connected in the upper connecting shell (13).

6. The copper tube blank rolling center positioning bearing seat according to claim 1, characterized in that: The inner side wall of the bearing inner ring (7) is provided with two opposite clamping grooves (22).

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