Light high-strength pelletizing cutter head

Abstract

The utility model discloses a light type high-strength pelletizing cutter head which comprises a pelletizing cutter head body, an installation hole in the front-back direction is formed in the middle of the body, a circular-ring-shaped concave ring is arranged in the front side face of the body, and the axis of the concave ring coincides with the axis of the installation hole. And a plurality of lightening holes which are through front and back are formed in the concave ring. The front side face of the main body is cut to form the concave ring, and the lightening holes are formed in the main body in a front-back penetrating mode, so that the weight of the main body is reduced while normal work of the main body is guaranteed, and power consumption of the pelletizing motor is reduced.

Description

Technical Field

[0001] The utility model relates to the field of granulators, in particular to a light-type high-strength granulating cutter disc. Background Art

[0002] The pelletizer disc is one of the important components of a large-scale extrusion granulation unit. It is a carrier that installs and drives the pelletizer to move forward and backward in the axial direction and rotate along the axis to perform pelletizing. The rotation of the pelletizer disc is driven by the pelletizer motor to drive the disc shaft to rotate, and the disc shaft drives the disc to rotate. With the development of the economy and the increase in production capacity, the geometric dimensions of the underwater extrusion granulation unit have also increased accordingly, and the geometric dimensions of the pelletizer disc have also increased accordingly, resulting in the pelletizer disc used in the existing pelletizer being heavier, thereby increasing the workload of the pelletizer motor, increasing the consumption of electric energy, and increasing the production cost of the enterprise. Utility Model Content

[0003] The purpose of the utility model is to provide a lightweight and high-strength pelletizing disc, which forms a concave ring by cutting on the front side of the main body and opens a plurality of weight-reducing holes through the front and rear of the main body, thereby reducing the weight of the main body while ensuring the normal operation of the main body, thereby reducing the power consumption of the pelletizing motor.

[0004] The technical solution adopted by the present invention to solve the above problems is:

[0005] A lightweight, high-strength pelletizing disc comprises a pelletizing disc main body, a mounting hole in the front-to-back direction is provided in the middle of the main body, a circular recessed ring is provided in the front side surface of the main body, the axis of the recessed ring coincides with the axis of the mounting hole, and a plurality of weight-reducing holes are provided in the recessed ring that penetrates front to back.

[0006] In the above technical solution, preferably, the bottom surface of the recessed ring is in the shape of a truncated cone with a diameter gradually decreasing toward the rear, and the angle between the bottom surface of the recessed ring and the front side surface of the main body is 18°.

[0007] In the above technical solution, preferably, the weight-reducing holes include a plurality of first weight-reducing holes distributed at equal intervals around the circumference and a plurality of second weight-reducing holes distributed at equal intervals around the circumference, and both the first weight-reducing holes and the second weight-reducing holes are cylindrical.

[0008] In the above technical solution, preferably, the number of the first weight-reducing holes is the same as the number of the second weight-reducing holes, and the axes of the first weight-reducing holes, the second weight-reducing holes and the mounting holes are parallel to each other and located on the same plane.

[0009] In the above technical solution, preferably, the first weight-reducing hole is located between the second weight-reducing hole and the mounting hole, and the diameter of the first weight-reducing hole is smaller than the diameter of the second weight-reducing hole.

[0010] In the above technical solution, preferably, a plurality of circumferentially distributed fixing holes are provided on the front side edge of the main body, the pelletizer is installed by screwing bolts into the fixing holes, and the rear end of the mounting hole is set as a stepped countersunk hole.

[0011] Compared with the prior art, the present invention has the following advantages and effects:

[0012] The utility model forms a recessed ring by removing part of the volume on the front side of the main body, and at the same time opens a number of weight-reducing holes through the front and back of the main body, thereby achieving the purpose of reducing the weight of the main body while ensuring that the main body can work normally, thereby reducing the workload of the pelletizing motor when driving the main body to rotate, reducing the consumption of electric energy, and reducing the production cost of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of a lightweight and high-strength pelletizing cutter disc according to an embodiment of the present utility model.

[0014] Figure 2 yes Figure 1 Front view of .

[0015] Figure 3 yes Figure 1 Schematic diagram of the back structure.

[0016] Figure 4 yes Figure 1 Side cross-sectional view of .

[0017] Among them, the main body 1, the mounting hole 2, the recessed ring 3, the weight-reducing hole 4, the first weight-reducing hole 41, the second weight-reducing hole 42, and the fixing hole 5. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0019] See also Figure 1-Figure 4 The present embodiment provides a lightweight and high-strength pelletizing disc, comprising a pelletizing disc main body 1, wherein a mounting hole 2 in the front-to-back direction is provided in the middle of the main body 1, and a circular recessed ring 3 is provided in the front side surface of the main body 1, wherein the axis of the recessed ring 3 coincides with the axis of the mounting hole 2, and a plurality of weight-reducing holes 4 are provided in the recessed ring 3 which pass through in the front-to-back direction.

[0020] The utility model retains the mounting hole 2 in the middle position of the main body 1 for mounting the cutter disc shaft so as to realize the installation of the pelletizer disc to the pelletizer motor. At the same time, a recessed ring 3 is formed by removing part of the volume on the front side of the main body 1, and a plurality of weight-reducing holes 4 are opened through the main body 1 in the front and back. The purpose of reducing the weight of the main body 1 is achieved while ensuring that the main body 1 can work normally, thereby reducing the workload of the pelletizer motor when driving the main body 1 to rotate, reducing the consumption of electric energy, and reducing the production cost of the enterprise.

[0021] See also Figure 1 、 Figure 2 The weight-reducing holes 4 include a plurality of first weight-reducing holes 41 distributed at equal intervals around the circumference and a plurality of second weight-reducing holes 42 distributed at equal intervals around the circumference. Both the first weight-reducing holes 41 and the second weight-reducing holes 42 are cylindrical.

[0022] The first weight-reducing holes 41 and the second weight-reducing holes 42 are both distributed at equal intervals around the circumference, which can make the weight of the main body 1 change evenly in the circumferential direction with its rotation axis as the center, so that the center of gravity of the main body 1 can be located on its rotation axis, thereby ensuring the stability of the main body 1 during rotation, and reducing the risk of shaking of the main body 1 during high-speed rotation due to the offset of the center of gravity of the main body 1. At the same time, compared with weight-reducing holes 4 of other shapes, the cylindrical weight-reducing holes 4 can distribute the pressure more evenly to various parts of the weight-reducing holes 4 when under pressure, thereby improving the deformation resistance of the first weight-reducing holes 41 and the second weight-reducing holes 42, and ensuring the overall strength of the main body 1 while reducing weight through the first weight-reducing holes 41 and the second weight-reducing holes 42.

[0023] See also Figure 2 The number of the first weight-reducing holes 41 is the same as the number of the second weight-reducing holes 42 , and the axis of the first weight-reducing holes 41 , the axis of the second weight-reducing holes 42 and the axis of the mounting hole 2 are parallel to each other and located on the same plane.

[0024] When the present invention is manufactured, first, first, equal-spaced first weight-reducing holes 41 are drilled on the main body 1, and then, the positions of the mounting holes 2 and the first weight-reducing holes 41 are used for positioning to drill equal-spaced second weight-reducing holes 42. The number of the first weight-reducing holes 41 and the number of the second weight-reducing holes 42 are the same, and the positions of the first weight-reducing holes 41 and the second weight-reducing holes 42 correspond one to one, which makes it easy to design the sizes of the first weight-reducing holes 41 and the second weight-reducing holes 42 according to the size of the main body 1, thereby reducing the weight of the main body 1 as much as possible while ensuring the strength of the main body 1.

[0025] See also Figure 2 The first weight-reducing hole 41 is located between the second weight-reducing hole 42 and the mounting hole 2 , and the diameter of the first weight-reducing hole 41 is smaller than the diameter of the second weight-reducing hole 42 .

[0026] The first weight-reducing hole 41 is close to the mounting hole 2, and the second weight-reducing hole 42 is far away from the mounting hole 2. The length of the ring where the second weight-reducing hole 42 is located is greater than the length of the ring where the first weight-reducing hole 41 is located. The spacing between the first weight-reducing holes 41 is small. Therefore, the size of the first weight-reducing hole 41 is small, which can ensure that there is sufficient spacing between adjacent second weight-reducing holes 42 to maintain the strength of the main body 1; the size of the second weight-reducing hole 42 is large, which can reduce the spacing between adjacent second weight-reducing holes 42 and the spacing between the first weight-reducing hole 41 and the second weight-reducing hole 42 to achieve a greater reduction in the weight of the main body 1, thereby achieving the purpose of reducing the weight of the main body 1 as much as possible while ensuring the strength of the main body 1 to reduce the power consumption during operation.

[0027] See also Figure 1 、 Figure 3 The front side edge of the main body 1 is provided with a plurality of fixing holes 5 distributed in a circumference. The fixing holes 5 are used to install the pelletizer by screwing in bolts. The rear end of the mounting hole 2 is set as a stepped countersunk hole.

[0028] When the pelletizer is mounted to the main body 1 using bolts, the bolt is screwed into the rear end of the fixing hole 5 and then into the screw hole of the pelletizer. This positions the bolt head at the rear of the main body 1, preventing it from being located in front of the pelletizer and obstructing the pelletizer's cutting operation. The fixing hole 5 is a countersunk hole, allowing the bolt head to enter the hole. This prevents the bolt head from being exposed outside the main body 1 and subject to resistance from the cooling water when the pelletizer moves with the main body 1. This reduces the resistance of the cooling water and the risk of the bolt loosening due to the resistance of the cooling water, thus ensuring the stable operation of the present invention. Furthermore, compared to conventional cylindrical screw holes, the countersunk hole can remove more volume, further reducing the weight of the main body 1.

[0029] See also Figure 1 、 Figure 4 The bottom surface of the recessed ring 3 is in the shape of a truncated cone with a diameter gradually decreasing toward the rear, and the angle between the bottom surface of the recessed ring 3 and the front side surface of the main body 1 is 18°.

[0030] Since the rear side of the existing pelletizing cutter disc is usually in the shape of a cone with a diameter gradually decreasing backward, the present invention sets the bottom surface of the recessed ring 3 to be also in the shape of a cone, thereby being able to remove more volume of the main body 1 while ensuring the normal strength and function of the main body 1, thereby being able to reduce more weight of the main body 1 and achieving the purpose of reducing power energy consumption.

[0031] The above contents described in this specification are merely examples of the present invention. Those skilled in the art of the present invention may make various modifications, additions, or substitute similar methods to the specific embodiments described, as long as they do not deviate from the contents of this specification or exceed the scope defined by the claims, and shall fall within the scope of protection of the present invention.

Claims

1. A lightweight, high-strength pelletizing disc, characterized by: It includes a main body of a pelletizing knife disc, a mounting hole in the front-to-back direction is opened in the middle position of the main body, a circular recessed ring is provided in the front side surface of the main body, the axis of the recessed ring coincides with the axis of the mounting hole, and a plurality of weight-reducing holes are provided in the recessed ring.

2. The lightweight high-strength pelletizing cutter disc according to claim 1, characterized in that: The bottom surface of the recessed ring is in the shape of a truncated cone with a diameter gradually decreasing toward the rear, and the angle between the bottom surface of the recessed ring and the front side surface of the main body is 18°.

3. The lightweight high-strength pelletizing cutter disc according to claim 1, characterized in that: The weight-reducing holes include a plurality of first weight-reducing holes distributed at equal intervals around the circumference and a plurality of second weight-reducing holes distributed at equal intervals around the circumference. Both the first weight-reducing holes and the second weight-reducing holes are cylindrical.

4. The lightweight high-strength pelletizing cutter disc according to claim 3, characterized in that: The number of the first weight-reducing holes is the same as the number of the second weight-reducing holes. The axes of the first weight-reducing holes, the axes of the second weight-reducing holes, and the axes of the mounting holes are parallel to each other and located on the same plane.

5. The lightweight high-strength pelletizing cutter disc according to claim 3, characterized in that: The first weight-reducing hole is located between the second weight-reducing hole and the mounting hole, and the diameter of the first weight-reducing hole is smaller than the diameter of the second weight-reducing hole.

6. The lightweight and high-strength pelletizing cutter disc according to claim 1, characterized in that: A plurality of fixing holes distributed in a circumference are provided on the edge of the front side of the main body. The pelletizer is installed in the fixing holes by screwing bolts. The rear ends of the mounting holes are arranged as stepped countersunk holes.

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