Detachable assembly type aluminum alloy roller

Abstract

The utility model relates to the technical field of rolling mills. A detachable assembly type aluminum alloy roller comprises a roller body, the roller body comprises a main roller body, an axial penetrating shaft hole is formed in the main roller body, a mounting groove is formed in one end of the main roller body in the axial direction, an annular lightening hole is formed in the other end of the main roller body in the axial direction, and the central axis of the annular lightening hole is parallel to the central axis of the main roller body; a Cr plating layer is electroplated on the inner wall of the shaft penetrating hole; the roller body further comprises a meshing transmission part, a hole which is in butt joint and communicated with the shaft penetrating hole is formed in the center of the meshing transmission part, and inner teeth used for being connected with the tooth-shaped structure on the transmission shaft in an inserted mode are arranged on the inner wall of the hole. And the meshing transmission part is embedded into the mounting groove and is detachably connected with the main roller body through bolts which are arranged in the circumferential direction. Partial disassembly and replacement of parts can be conveniently achieved, and the self weight is reduced through the combination of aluminum alloy materials and the annular lightening holes.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling mills, in particular to a roller. Background Art

[0002] In the production process of precision rolling mills, the rollers used for collecting and releasing materials are usually made of steel, such as 45 steel, 40Cr, etc. Although the rollers made of these materials have good mechanical properties, considering that most precision rolling mills are still manually operated, the rollers made of steel are heavy, difficult to operate, time-consuming and labor-intensive to use, affecting production efficiency.

[0003] In addition, existing rollers are often integrated structures, which are not convenient for partial replacement.

[0004] Currently, there is an urgent need for a roller structure that can reduce its own weight. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model provides a detachable assembled aluminum alloy roller, which solves at least one of the above technical problems.

[0006] The technical solution of the utility model is: a detachable assembled aluminum alloy roller, comprising a roller body, characterized in that the roller body comprises a main roller body, an axially penetrating through-axis hole is provided on the main roller body, a mounting groove is provided at one axial end of the main roller body, and a circular weight-reducing hole is provided at the other axial end of the main roller body, and the central axis of the circular weight-reducing hole is parallel to the central axis of the main roller body;

[0007] The sum of the axial length of the annular weight-reducing hole and the axial length of the mounting groove is smaller than the axial length of the main roller body;

[0008] The inner wall of the through-axis hole is electroplated with a Cr coating;

[0009] The roller body also includes a meshing transmission part, the meshing transmission part has a hole in the center thereof that is connected to the shaft hole, and the inner wall of the hole has internal teeth for plugging into the toothed structure on the transmission shaft;

[0010] The meshing transmission part is embedded in the mounting groove, and the meshing transmission part is detachably connected to the main roller body through circumferentially arranged bolts;

[0011] The main roller body and the meshing transmission part are both made of aluminum alloy.

[0012] The utility model optimizes the roller structure to facilitate partial disassembly and replacement of components, and reduces dead weight through the combination of aluminum alloy material and annular weight-reducing holes.

[0013] The detachable combination of the two parts facilitates the operation of different processing techniques. The Cr coating is arranged in the through-shaft hole to improve the strength of the connection with the transmission shaft.

[0014] Further preferably, the outer surface of the main roller body is covered with an aluminum oxide layer.

[0015] Improve wear resistance.

[0016] Further preferably, the axial length of the mounting groove is 1 / 8-1 / 7 of the axial length of the main roller body.

[0017] Further preferably, the axial length of the annular weight-reducing hole is 1 / 3-1 / 2 of the axial length of the main roller body.

[0018] Further preferably, the radial spacing between the inner side of the annular weight-reducing hole and the through-shaft hole is 10 mm to 15 mm;

[0019] The radial distance between the outer side of the annular weight-reducing hole and the outer wall of the main roller body is 10 mm-15 mm.

[0020] It is convenient to ensure the supporting strength.

[0021] Further preferably, the axial projection area of ​​the inner teeth is located at the periphery of the axial projection area of ​​the through-shaft hole;

[0022] The bottom of the installation groove is used as a limiting end surface for inserting the transmission shaft.

[0023] Further preferably, the main roller body is provided with a threaded hole for threadedly connecting the bolt;

[0024] There is a gap between the bottom of the threaded hole and the bottom of the annular weight-reducing hole.

[0025] Easy to ensure strength.

[0026] Beneficial effects:

[0027] The utility model reduces weight as much as possible and improves convenience of use while ensuring rigidity in use. The inner wall of the through-shaft hole is electroplated with a Cr coating to improve its wear resistance and corrosion resistance.

[0028] The overall weight of the utility model is 5.44kg, while the traditional 45 steel roller weighs 9.5kg, which is greatly reduced and has a significant weight reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A cross-sectional view of a specific embodiment 1 of the utility model;

[0030] Figure 2This is a structural schematic diagram of a specific embodiment 1 of the utility model;

[0031] Figure 3 This is a schematic structural diagram of a main roller body in a specific embodiment 1 of the utility model;

[0032] Figure 4 This is a structural schematic diagram of the meshing transmission part of the specific embodiment 1 of the utility model;

[0033] Figure 5 This is a cross-sectional view of specific embodiment 2 of the utility model.

[0034] In the figure: 1 is the main roller body, 2 is the meshing transmission part, 3 is the locking screw, 11 is the mounting groove, 12 is the shaft through hole, 13 is the circular ring-shaped weight reduction hole, and 21 is the internal tooth. DETAILED DESCRIPTION

[0035] See also Figures 1 to 4 , Specific embodiment 1, a detachable assembled aluminum alloy roller, including a roller body, the roller body includes a main roller body 1, an axial through-axis hole 12 is provided on the main roller body 1, an axial end of the main roller body 1 is provided with a mounting groove 11, and an annular weight-reducing hole 13 is provided at the other axial end of the main roller body 1, and the central axis of the annular weight-reducing hole 13 is parallel to the central axis of the main roller body 1; the sum of the axial length of the annular weight-reducing hole 13 and the axial length of the mounting groove 11 is less than the axial length of the main roller body 1; the inner wall of the through-axis hole 12 is electroplated with a Cr coating; the roller body also includes a meshing transmission part 2, a hole is provided in the center of the meshing transmission part 2 for docking and conducting with the through-axis hole 12, and the inner wall of the hole is provided with internal teeth 21 for plugging the toothed structure on the transmission shaft; the meshing transmission part 2 is embedded in the mounting groove 11, and the meshing transmission part 2 is detachably connected to the main roller body 1 through circumferentially arranged bolts; the main roller body and the meshing transmission part 2 are both made of aluminum alloy. The utility model optimizes the roller structure to facilitate partial disassembly and replacement of components, and reduces the dead weight through the combination of aluminum alloy material and annular weight-reducing holes. Through the detachable combination of two components, it is convenient to implement operations of different processing techniques. The Cr coating is provided in the shaft hole 12 to improve the strength of the connection with the transmission shaft.

[0036] The outer surface of the main roller body 1 is covered with an aluminum oxide layer. The wear resistance is improved. The axial length of the mounting groove 11 is 1 / 8-1 / 7 of the axial length of the main roller body 1. The axial length of the annular weight-reducing hole is 1 / 3-1 / 2 of the axial length of the main roller body 1. The axial length of the main roller body 1 is 165mm. The axial length of the annular weight-reducing hole is 65mm. The outer diameter of the annular weight-reducing hole is 128mm. The inner diameter of the annular weight-reducing hole is 65mm. The outer diameter of the main roller body 1 is 148mm. The axial length of the mounting groove 11 is 20mm.

[0037] The radial spacing between the inner side of the annular weight-reducing hole and the shaft-through hole is 10mm-15mm; the radial spacing between the outer side of the annular weight-reducing hole and the outer wall of the main roller body 1 is 10mm-15mm, so as to ensure the support strength.

[0038] The axial projection area of ​​the inner teeth 21 is located at the periphery of the axial projection area of ​​the through-shaft hole; the bottom of the mounting groove 11 is used as a limiting end surface for inserting the transmission shaft.

[0039] The main roller body 1 is provided with a threaded hole for threaded connection bolts; there is a gap between the bottom of the threaded hole and the bottom of the annular weight-reducing hole, so as to ensure strength. The threaded hole is an M10 screw hole, and the depth of the threaded hole is 30 mm. There are four threaded holes.

[0040] The meshing transmission part 2 is provided with a countersunk hole through which the bolt passes.

[0041] The inner diameter of the annular weight-reducing hole 13 is 65 mm, the outer diameter is 128 mm, and the depth is 65 mm. The rigidity is ensured while the weight is reduced as much as possible to improve the convenience of use.

[0042] The circularity diameter of the inner tooth 21 is 51 mm, the module of the inner tooth 21 is 1.5, the number of teeth is 34, the top circle diameter is 48 mm, and the root circle diameter is 55 mm.

[0043] The outer surface of the main roller body is used for winding the metal foil strip.

[0044] See also Figure 5 Specific embodiment 2, based on specific embodiment 1, threaded holes arranged at equal intervals in the circumferential direction are provided on the main roller body 1, and the threaded holes are used to threadably connect the locking screws 3 against the transmission shaft. The threaded holes are connected to the annular weight-reducing holes. There are preferably 2 or 3 threaded holes. A blind hole for embedding the head of the locking screw can be provided between the threaded holes and the annular weight-reducing holes.

[0045] The above are only preferred implementations of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A detachable assembled aluminum alloy roller, comprising a roller body, characterized in that: The roller body comprises a main roller body, an axially penetrating through-axis hole is provided on the main roller body, a mounting groove is provided at one axial end of the main roller body, and an annular weight-reducing hole is provided at the other axial end of the main roller body, and the central axis of the annular weight-reducing hole is parallel to the central axis of the main roller body; The sum of the axial length of the annular weight-reducing hole and the axial length of the mounting groove is smaller than the axial length of the main roller body; The inner wall of the through-axis hole is electroplated with a Cr coating; The roller body also includes a meshing transmission part, the meshing transmission part has a hole in the center thereof that is connected to the shaft hole, and the inner wall of the hole has internal teeth for plugging into the toothed structure on the transmission shaft; The meshing transmission part is embedded in the mounting groove, and the meshing transmission part is detachably connected to the main roller body through circumferentially arranged bolts; The main roller body and the meshing transmission part are both made of aluminum alloy.

2. The detachable assembled aluminum alloy roller according to claim 1, characterized in that: The outer surface of the main roller body is covered with an aluminum oxide layer.

3. The detachable assembled aluminum alloy roller according to claim 1, characterized in that: The axial length of the mounting groove is 1 / 8-1 / 7 of the axial length of the main roller body.

4. The detachable assembled aluminum alloy roller according to claim 1, characterized in that: The axial length of the annular weight-reducing hole is 1 / 3-1 / 2 of the axial length of the main roller body.

5. The detachable assembled aluminum alloy roller according to claim 1, characterized in that: The radial spacing between the inner side of the annular weight-reducing hole and the through-shaft hole is 10 mm to 15 mm; The radial distance between the outer side of the annular weight-reducing hole and the outer wall of the main roller body is 10 mm-15 mm.

6. The detachable assembled aluminum alloy roller according to claim 1, characterized in that: The axial projection area of ​​the inner teeth is located at the periphery of the axial projection area of ​​the through-shaft hole; The bottom of the installation groove is used as a limiting end surface for inserting the transmission shaft.

7. The detachable assembled aluminum alloy roller according to claim 1 is characterized in that: The main roller body is provided with a threaded hole for threaded connection with the bolt; There is a gap between the bottom of the threaded hole and the bottom of the annular weight-reducing hole.

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