An adjustable pipe diameter reducing device

Abstract

The utility model discloses an adjustable pipe diameter reducing device, frame has the first guide rail and second guide rail of inclination setting, roll mechanism, roll mechanism is used for reducing round pipe material, and roll mechanism includes first roll assembly and second roll assembly, and first roll assembly includes first roller pair, and the first power source of drive first roller pair rotation, and second roll assembly includes second roller pair, and the second power source of drive second roller pair rotation, and first roller pair sets up in first guide rail, and second roller pair sets up in second guide rail, adjusting mechanism includes first adjusting bolt and second adjusting bolt, and the end of first adjusting bolt is connected with second roller pair rotation, and the end of second adjusting bolt is connected with first roller pair rotation, and second adjusting bolt rotates, the utility model can adjust the position between roller pair, improve the concentricity of arc surface center between multiple groups of roller pair, reduce the bending of round pipe material after pipe diameter reduction.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe processing equipment, and in particular to an adjustable pipe diameter reduction device. Background Technology

[0002] Pipe diameter reduction technology is an important process in the field of metal plastic processing and is widely used in the processing of various pipes, such as electric heating tubes, building structural tubes, heat exchanger finned tubes, etc. Existing pipe diameter reduction devices have multiple sets of roller pairs, which progressively compress the round pipe through multiple sets of rollers.

[0003] However, the concentricity accuracy of the arc-shaped surfaces between existing multiple roller pairs is low. When processing round tubes, the offset of the arc-shaped surfaces causes the tube axis to bend in a spiral shape, which makes it difficult to meet the product's usage requirements. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an adjustable pipe diameter reduction device, which can adjust the position between roller pairs, improve the concentricity of the arc-shaped surfaces between multiple roller pairs, and reduce the bending of the round pipe after the pipe diameter is reduced.

[0005] An adjustable pipe diameter reduction device according to an embodiment of the present invention includes: a frame having an inclined first guide rail and a second guide rail arranged at a 90° angle; a roller pressing mechanism for reducing round pipes, the roller pressing mechanism including a first roller pressing assembly and a second roller pressing assembly, the first roller pressing assembly and the second roller pressing assembly being arranged along the moving path of the round pipe, the first roller pressing assembly including a first roller pair and a first power source for driving the first roller pair to rotate, the second roller pressing assembly including a second roller pair and a second power source for driving the second roller pair to rotate, the first roller pair being disposed on the first guide rail, and the second roller pair being disposed on the second guide rail; and an adjustment mechanism including a first adjusting bolt and a second adjusting bolt threadedly connected to the frame, the end of the first adjusting bolt being rotatably connected to the second roller pair, the first adjusting bolt rotating to move the second roller pair along the second guide rail, the end of the second adjusting bolt being rotatably connected to the first roller pair, the second adjusting bolt rotating to move the first roller pair along the first guide rail.

[0006] An adjustable pipe diameter reduction device according to an embodiment of the present invention has at least the following beneficial effects: 1. This utility model, by setting a first guide rail and a second guide rail, forming a 90° angle between them, with a first roller pair positioned on the first guide rail and a second roller pair positioned on the second guide rail, ensures that both the first and second roller pairs are inclined, and that the angles formed by the first and second roller pairs with the vertical plane are both 45°. This arrangement results in a more balanced force on the first and second roller pairs, with equal torque in all directions, making it suitable for processing large-diameter pipes. It ensures precise cylindricity of the shrunken round pipe with minimal deformation. In addition, by setting a first adjusting bolt and a second adjusting bolt, the first adjusting bolt can be rotated in both directions to move the second roller pair along the second guide rail, and the second adjusting bolt can be rotated in both directions to move the first roller pair along the first guide rail. Thus, by adjusting the relative position between the second roller pair and the first roller pair, the concentricity of the arc surface center between the second roller pair and the first roller pair can be accurately corrected, thereby improving the concentricity of the arc surface center between the second roller pair and the first roller pair, reducing the bending that occurs after the diameter of the round tube is reduced, and improving the yield of the round tube diameter reduction process.

[0007] According to an embodiment of the present invention, an adjustable pipe diameter reduction device has bearing housings at both ends of the first roller pair, and the bearing housings have a first sidewall on the side near the first guide rail, and the first sidewall is provided with a first guide groove that matches the first guide rail.

[0008] According to an embodiment of the present invention, an adjustable pipe diameter reduction device is provided, wherein the bearing housing has a second sidewall, the second sidewall is disposed near the second adjusting bolt and perpendicular to the first sidewall, and the end of the second adjusting bolt is used to abut against the second sidewall.

[0009] According to an embodiment of the present invention, an adjustable pipe diameter reduction device is provided with a frame having locking bolts, which are threadedly connected to the second side wall to fix the first roller pair to the frame.

[0010] According to an embodiment of the present invention, an adjustable pipe diameter reduction device is provided, wherein the first power source and the first roller pair are connected by a universal coupling.

[0011] According to an embodiment of the present invention, an adjustable pipe diameter reduction device is provided, wherein the first power source includes a gearbox and a motor that drives the gearbox to output power, the gearbox has a first output shaft and a second output shaft, the first roller pair has a first shaft and a second shaft, the first output shaft is drivenly connected to the first shaft, and the second output shaft is drivenly connected to the second shaft.

[0012] According to an embodiment of the present invention, an adjustable pipe diameter reduction device is provided, wherein the first output shaft has a first gear set, the second output shaft has a second gear set, and the first gear set and the second gear set mesh and drive each other.

[0013] According to an embodiment of the present invention, an adjustable pipe diameter reduction device is provided, wherein the frame includes a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are arranged opposite to each other, a first inclined plate and a second inclined plate are connected between the first vertical plate and the second vertical plate, the first inclined plate and the second inclined plate are arranged at 90° apart, the first guide rail is installed on the first inclined plate, and the second guide rail is installed on the second inclined plate.

[0014] According to an embodiment of the present invention, an adjustable pipe diameter reduction device is provided in which the first vertical plate is provided with a feed inlet and a plurality of guide wheels distributed circumferentially along the feed inlet, the plurality of guide wheels clamping and conveying round pipes.

[0015] According to an embodiment of the present invention, an adjustable pipe diameter reduction device is provided in which the second vertical plate is provided with a discharge port and a guide pipe that cooperates with the discharge port, and a round pipe is accommodated inside the guide pipe.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an adjustable pipe diameter reduction device according to an embodiment of the present invention; Figure 2 for Figure 1 A cross-sectional view of an adjustable pipe diameter reduction device is shown. Figure 3 for Figure 2 A partial view of an adjustable pipe diameter reduction device is shown. Figure 4 for Figure 1 A schematic diagram of the roller pressing mechanism of an adjustable pipe diameter reduction device is shown. Figure 5 for Figure 1 A partial view of the roller pressing mechanism of an adjustable pipe diameter reduction device is shown; Figure 6 for Figure 5 A schematic diagram of the structure of the first roller pair of an adjustable pipe diameter reduction device is shown. Figure 7 for Figure 5 A schematic diagram of the guide wheel of an adjustable pipe diameter reduction device is shown.

[0019] Reference numerals: Frame 100, First guide rail 110, Second guide rail 120, First roller pressing assembly 130, Second roller pressing assembly 140, First roller pair 150, First power source 160, Second roller pair 170, Second power source 180, First adjusting bolt 190, Second adjusting bolt 200, Bearing housing 210, First side wall 220, Second side wall 230, Locking bolt 240, Universal coupling 250, Gearbox 260, Motor 270, First shaft 280, Second shaft 290, First gear set 300, Second gear set 310, First vertical plate 320, Second vertical plate 330, First inclined plate 340, Second inclined plate 350, Feed inlet 360, Guide wheel 370, Guide tube 380, First guide groove 390. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] An adjustable pipe diameter reduction device according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0025] Reference Figure 1 The present invention aims to provide an embodiment of an adjustable pipe diameter reduction device.

[0026] An adjustable pipe diameter reduction device according to an embodiment of the present invention includes a frame 100, a roller pressing mechanism and an adjustment mechanism.

[0027] The frame 100 has a first guide rail 110 and a second guide rail 120 that are inclined and arranged at a 90° angle between them.

[0028] The roller pressing mechanism is used to reduce the diameter of the round tube. The roller pressing mechanism includes a first roller pressing assembly 130 and a second roller pressing assembly 140. The first roller pressing assembly 130 and the second roller pressing assembly 140 are arranged along the moving path of the round tube. The first roller pressing assembly 130 includes a first roller pair 150 and a first power source 160 that drives the first roller pair 150 to rotate. The second roller pressing assembly 140 includes a second roller pair 170 and a second power source 180 that drives the second roller pair 170 to rotate. The first roller pair 150 is disposed on a first guide rail 110 and the second roller pair 170 is disposed on a second guide rail 120.

[0029] The adjustment mechanism includes a first adjusting bolt 190 and a second adjusting bolt 200 that are threadedly connected to the frame 100. The end of the first adjusting bolt 190 is rotatably connected to the second roller pair 170. The first adjusting bolt 190 rotates to move the second roller pair 170 along the second guide rail 120. The end of the second adjusting bolt 200 is rotatably connected to the first roller pair 150. The second adjusting bolt 200 rotates to move the first roller pair 150 along the first guide rail 110.

[0030] Understandably, this invention, by setting a first guide rail 110 and a second guide rail 120, forming a 90° angle between them, with a first roller pair 150 positioned on the first guide rail 110 and a second roller pair 170 positioned on the second guide rail 120, ensures that both the first roller pair 150 and the second roller pair 170 are inclined, and that the angles formed by the first roller pair 150 and the second roller pair 170 with the vertical plane are both 45°. This arrangement results in a more balanced force on the first roller pair 150 and the second rollers, with equal torque in all directions. This arrangement is suitable for processing large-diameter pipes, ensuring accurate cylindricity and minimal deformation of the shrunken round pipe. In addition, by setting a first adjusting bolt 190 and a second adjusting bolt 200, the first adjusting bolt 190 can rotate in both directions to move the second roller pair 170 along the second guide rail 120, and the second adjusting bolt 200 can rotate in both directions to move the first roller pair 150 along the first guide rail 110. Thus, by adjusting the relative position between the second roller pair 170 and the first roller pair 150, the concentricity of the arc surface center between the second roller pair 170 and the first roller pair 150 can be accurately corrected, thereby improving the concentricity of the arc surface center between the second roller pair 170 and the first roller pair 150, reducing the bending that occurs after the diameter of the round tube is reduced, and improving the yield of the round tube diameter reduction process.

[0031] In some embodiments of this utility model, multiple first roller pressing assemblies 130 and second roller pressing assemblies 140 are provided, and multiple first roller pressing assemblies 130 and second roller pressing assemblies 140 are arranged alternately along the moving path of the circular tube.

[0032] In some embodiments of this utility model, reference is made to Figure 3 , Figure 5 and Figure 6 The first roller pair 150 has bearing housings 210 at both ends. The bearing housing 210 has a first sidewall 220 on the side near the first guide rail 110. The first sidewall 220 is provided with a first guide groove 390 that matches the first guide rail 110.

[0033] It is understood that by setting up a bearing housing 210 in this embodiment, the bearing housing 210 can support the first roller pair 150, making the first roller pair 150 less prone to wear and improving the accuracy of the first roller pair 150 rolling the round tube.

[0034] Furthermore, by utilizing the precise fit between the first guide groove 390 and the first guide rail 110, the first roller pair 150 moves along the first guide rail 110 without lateral offset, thereby improving the adjustment accuracy.

[0035] It should be noted that the two ends of the second roller pair 170 also have bearing housings 210. The bearing housing 210 has a first sidewall 220 on the side near the first guide rail 110. The first sidewall 220 is provided with a guide groove that matches the second guide rail 120. The attached figure does not show this.

[0036] In some embodiments of this utility model, reference is made to Figure 3 , Figure 5 and Figure 6 The bearing housing 210 has a second sidewall 230, which is located near the second adjusting bolt 200 and perpendicular to the first sidewall 220. The end of the second adjusting bolt 200 is used to abut against the second sidewall 230.

[0037] It is understandable that the end face abutment design of the second side wall 230 and the second adjusting bolt 200 directly converts the rotation of the second adjusting bolt 200 into linear displacement, and the second adjusting bolt 200 can accurately adjust the displacement of the first roller pair 150.

[0038] It should be noted that the end of the first adjusting bolt 190 can abut against the second side wall 230 of the bearing housing 210 of the second roller pair 170 to adjust the position of the second roller pair 170.

[0039] In some embodiments of this utility model, the frame 100 is provided with locking bolts 240, which are threadedly connected to the second side wall 230 so that the first roller pair 150 is fixed to the frame 100.

[0040] Specifically, the first inclined plate 340 and the second inclined plate 350 of the frame 100 are provided with through holes. There is a large gap between the through holes and the locking bolt 240. During adjustment, the locking bolt 240 is loosened, the bearing housing 210 moves, and the locking bolt 240 can follow the bearing housing 210 to make a small displacement. After adjustment, the locking bolt 240 is tightened so that the bearing housing 210 is fixed on the frame 100.

[0041] In some embodiments of this utility model, the first power source 160 and the first roller pair 150 are connected by a universal coupling 250.

[0042] Understandably, by setting up a universal coupling 250, the first power source 160 and the first roller pair 150 are connected by the universal coupling 250. The first power source 160 drives the universal coupling 250, thereby driving the first roller pair 150 to roll. When the position of the first roller pair 150 is adjusted, the hinge position of the universal coupling 250 can be straightened or folded to ensure that the first roller pair 150 can be adjusted smoothly.

[0043] It should be noted that the second power source 180 and the second roller pair 170 can also be connected by a universal coupling 250.

[0044] In some embodiments of this utility model, reference is made to Figure 1 and Figure 2 The first power source 160 includes a reduction gearbox 260 and a motor 270 that drives the reduction gearbox 260 to output power. The reduction gearbox 260 has a first output shaft and a second output shaft. The first roller pair 150 has a first shaft 280 and a second shaft 290. The first output shaft is driven by the first shaft 280, and the second output shaft is driven by the second shaft 290. Specifically, the first output shaft has a first gear set 300, and the second output shaft has a second gear set 310. The first gear set 300 and the second gear set 310 mesh and drive each other.

[0045] Understandably, the dual-output shaft reducer 260 drives the two rollers to rotate synchronously in opposite directions, which can be used in conjunction with gear transmission to improve the speed consistency between the first roller and the second roller.

[0046] In some embodiments of this utility model, the frame 100 includes a first upright plate 320 and a second upright plate 330, which are arranged opposite to each other. A first inclined plate 340 and a second inclined plate 350 are connected between the first upright plate 320 and the second upright plate 330. The first inclined plate 340 and the second inclined plate 350 are arranged at 90° to each other. A first guide rail 110 is installed on the first inclined plate 340, and a second guide rail 120 is installed on the second inclined plate 350.

[0047] It is understandable that the angles formed by the first inclined plate 340 and the second inclined plate 350 with the vertical plane can both be 45°, so that the first inclined plate 340 and the second inclined plate 350 support the first roller pair 150 and the second roller pair 170 respectively, ensuring that the first roller pair 150 and the second roller pair 170 are symmetrically arranged about the vertical plane.

[0048] In some embodiments of this utility model, reference is made to Figure 7 The first vertical plate 320 is provided with a feed inlet 360 and multiple guide wheels 370 distributed circumferentially along the feed inlet 360. The multiple guide wheels 370 clamp and convey the round pipe.

[0049] Understandably, using multiple guide wheels 370 to clamp and convey the round pipe allows the round pipe to accurately enter the first roller pair 150 and the second roller pair 170, reducing the rate of damage to the pipe end face.

[0050] In some embodiments of this utility model, reference is made to Figure 4 The second vertical plate 330 is provided with a discharge port and a guide tube 380 that cooperates with the discharge port. The guide tube 380 contains a round tube. After the diameter of the round tube is reduced, the guide tube 380 supports the round tube, reducing the bending deformation of the round tube.

[0051] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An adjustable pipe diameter reduction device, characterized in that, include: The frame (100) has a first guide rail (110) and a second guide rail (120) that are inclined and arranged at 90° between the first guide rail (110) and the second guide rail (120); A rolling mechanism for reducing round tubes, the rolling mechanism including a first rolling assembly (130) and a second rolling assembly (140), the first rolling assembly (130) and the second rolling assembly (140) being arranged along the moving path of the round tube, the first rolling assembly (130) including a first roller pair (150) and a first power source (160) driving the first roller pair (150) to rotate, the second rolling assembly (140) including a second roller pair (170) and a second power source (180) driving the second roller pair (170) to rotate, the first roller pair (150) being disposed on the first guide rail (110), and the second roller pair (170) being disposed on the second guide rail (120); The adjustment mechanism includes a first adjusting bolt (190) and a second adjusting bolt (200) threadedly connected to the frame (100). The end of the first adjusting bolt (190) is rotatably connected to the second roller pair (170). The first adjusting bolt (190) rotates to move the second roller pair (170) along the second guide rail (120). The end of the second adjusting bolt (200) is rotatably connected to the first roller pair (150). The second adjusting bolt (200) rotates to move the first roller pair (150) along the first guide rail (110).

2. The adjustable pipe diameter reduction device according to claim 1, characterized in that, The first roller pair (150) has bearing housings (210) at both ends. The bearing housing (210) has a first sidewall (220) on the side near the first guide rail (110). The first sidewall (220) is provided with a first guide groove (390) that matches the first guide rail (110).

3. The adjustable pipe diameter reduction device according to claim 2, characterized in that, The bearing housing (210) has a second sidewall (230) which is located near the second adjusting bolt (200) and perpendicular to the first sidewall (220). The end of the second adjusting bolt (200) is used to abut against the second sidewall (230).

4. The adjustable pipe diameter reduction device according to claim 3, characterized in that, The frame (100) is provided with locking bolts (240), which are threaded to the second sidewall (230) to fix the first roller pair (150) to the frame (100).

5. The adjustable pipe diameter reduction device according to claim 1, characterized in that, The first power source (160) and the first roller pair (150) are connected by a universal coupling (250).

6. The adjustable pipe diameter reduction device according to claim 1, characterized in that, The first power source (160) includes a gearbox (260) and a motor (270) that drives the gearbox (260) to output power. The gearbox (260) has a first output shaft and a second output shaft. The first roller pair (150) has a first shaft (280) and a second shaft (290). The first output shaft is connected to the first shaft (280) in a transmission connection, and the second output shaft is connected to the second shaft (290) in a transmission connection.

7. The adjustable pipe diameter reduction device according to claim 6, characterized in that, The first output shaft has a first gear set (300), and the second output shaft has a second gear set (310), and the first gear set (300) and the second gear set (310) mesh and drive each other.

8. The adjustable pipe diameter reduction device according to claim 1, characterized in that, The frame (100) includes a first upright plate (320) and a second upright plate (330), which are arranged opposite to each other. A first inclined plate (340) and a second inclined plate (350) are connected between the first upright plate (320) and the second upright plate (330). The first inclined plate (340) and the second inclined plate (350) are arranged at 90° to each other. A first guide rail (110) is installed on the first inclined plate (340), and a second guide rail (120) is installed on the second inclined plate (350).

9. An adjustable pipe diameter reduction device according to claim 8, characterized in that, The first upright plate (320) is provided with a feed inlet (360) and a plurality of guide wheels (370) distributed circumferentially along the feed inlet (360), and the plurality of guide wheels (370) clamp and convey the round pipe.

10. An adjustable pipe diameter reduction device according to claim 8, characterized in that, The second vertical plate (330) is provided with a discharge port and a guide tube (380) that cooperates with the discharge port, and a round tube is accommodated inside the guide tube (380).

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