Logarithmic spiral blade double open blade pulverizer cutter

Abstract

The utility model discloses a logarithmic spiral line blade shape double open blade pulverizer cutter, including spindle, cutter, sword shaft and logarithmic spiral line blade shape double open blade cutter, spindle connection drive motor, and the both sides and intermediate installation have a plurality of cutter, the cutter is installed with a plurality of sword shaft through the opening round hole, the sword shaft is arranged and installed on the cutter on the spindle interval 90 degrees and is centrally symmetric, and the adjacent two logarithmic spiral line blade shape double open blade cutters are installed on the sword shaft in the circumferential direction, and are fixed by the spacer sleeve interval. The utility model device is simple, and the efficiency is higher, can keep in the cutting process slip cut angle invariable, can effectively solve the problem that the stress is uneven, and the cutter fluctuation is big in the process of smashing, to prolong the blade use time, improve the life.

Description

Technical Field

[0001] This utility model relates to the field of feed production equipment technology, specifically to a logarithmic spiral blade-shaped double-edged pulverizer blade. Background Technology

[0002] my country generates an average of 865 million tons of straw resources annually (including rice straw, corn straw, wheat straw, etc.). A large portion of this is used for animal feed, which can alleviate livestock feed shortages and reduce production costs. However, the straw needs to be chopped and crushed into different shapes and lengths to improve palatability for livestock. Therefore, the performance of straw crushers directly affects the development of straw utilization technology, and the core of a crusher's operation is its blades. Existing blades often suffer from problems such as easy wear, high energy consumption, and low efficiency. Utility Model Content

[0003] To address the above issues, a logarithmic spiral blade shape and open-blade structure design are adopted to improve crushing efficiency, reduce energy consumption, and optimize straw cutting effect, in order to meet the growing industrial demand for straw processing.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A logarithmic spiral double-edged pulverizer blade includes a main shaft, a cutter disc, a cutter shaft, and logarithmic spiral double-edged blades. The main shaft is connected to a drive motor, and several cutter discs are installed on both sides and in the middle. Several cutter shafts are installed on the cutter discs through circular holes. The cutter shafts are centrally symmetrically arranged on the cutter discs at 90-degree intervals on the main shaft. Adjacent logarithmic spiral double-edged blades are installed on the cutter shafts in the circumferential direction and are fixed at intervals by positioning sleeves.

[0005] Preferably, the spindle has a keyway on its circumference and one end is connected to a drive motor.

[0006] Preferably, the cutter head has a centrally symmetrical structure, with a large hole in the center to fit the main shaft, and four small holes along the circumference to fit the cutter shaft.

[0007] Preferably, pin holes are provided at both ends of the cutter shaft to connect pins.

[0008] Preferably, the cutting edge curve of the logarithmic spiral double-edged tool is a logarithmic spiral, and a double-edged angle is provided. All tools have the same thickness, the same cutting edge angle, and the same mounting dimensions, and are arranged symmetrically in four groups.

[0009] Preferably, the positioning sleeves are spaced apart between logarithmic spiral-shaped double-edged tools, and four sets are symmetrically arranged. The entire sleeves are tempered to enhance wear resistance.

[0010] Compared with existing technologies, the beneficial effects of this utility model are as follows: A keyway is provided on the circumference of the main shaft to facilitate torque transfer. By setting a centrally symmetrical non-circular cutter head on the main shaft, it can drive the logarithmic spiral double-edged cutter to rotate while ensuring strength and functionality, and simultaneously reducing mass to achieve weight reduction. Pin holes are opened at both ends of the cutter shaft to connect pins, ensuring the reliability of the working process. Using a logarithmic spiral double-edged cutter head reduces energy consumption during the crushing process and increases crushing efficiency. A positioning sleeve is provided between adjacent cutter heads to maintain the distance between them and prevent interference between the cutters during operation. This effectively improves the stability and reliability of the crusher's operation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 yes Figure 1 A front view of a logarithmic spiral double-edged cutting tool.

[0013] Figure 3 yes Figure 1 Top view of a logarithmic spiral double-edged cutting tool.

[0014] In the diagram: 1-spindle; 2-tool head; 3-tool shaft; 4-logarithmic spiral double-edged tool; 5-positioning sleeve. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-3 This utility model provides a technical solution: including a main spindle 1, a cutter head 2, a cutter shaft 3, and a logarithmic spiral double-edged cutting tool 4. The main spindle 1 is connected to a drive motor, and several cutter heads 2 are installed on both sides and in the middle. Several cutter shafts 3 are installed on the cutter head 2 through circular holes. The cutter shafts 3 are centrally symmetrically arranged on the cutter head 2 at 90-degree intervals on the main spindle 1. Two adjacent logarithmic spiral double-edged cutting tools 4 are installed on the cutter shafts in the circumferential direction and are fixed at intervals by positioning sleeves 5.

[0017] The main shaft 1 is used to connect to the drive motor, and several cutter heads 2 are installed on its two sides and in the middle. The circumference of the main shaft 1 may be provided with a keyway to drive the cutter heads 2 to rotate synchronously through a key connection.

[0018] The cutter head 2 has a centrally symmetrical structure, with a large hole in its center for mounting on the spindle 1, and four small circular holes evenly spaced along its circumference. The cutter shafts 3 are installed through these small circular holes, so that multiple cutter shafts 3 are arranged centrally symmetrically at 90-degree intervals around the spindle 1. Pin holes can be provided at both ends of the cutter shafts 3 for inserting pins for axial fixation.

[0019] The logarithmic spiral double-edged cutter 4 is the core component of this invention. Its cutting edge is designed as a logarithmic spiral, which helps reduce resistance and energy consumption during cutting. The logarithmic spiral double-edged cutter 4 has a through hole for passing through the cutter shaft 3. Multiple logarithmic spiral double-edged cutters 4 are sequentially mounted on the same cutter shaft 3 in the circumferential direction, and each cutter 4 has a double-edged angle. This double-edged design further reduces the cutting contact area and enhances the crushing effect on the material. All logarithmic spiral double-edged cutters 4 have the same thickness, cutting angle, and mounting dimensions, and are arranged in four groups symmetrically at the center.

[0020] The positioning sleeve 5 is fitted onto the cutter shaft 3 and spaced apart between adjacent logarithmic spiral double-edged cutters 4 to ensure a fixed clearance between the cutters and prevent interference during high-speed rotation. Four sets of positioning sleeves 5 are symmetrically arranged and can undergo overall tempering to improve their wear resistance and strength. The cutter disc 2, while maintaining structural strength, incorporates a lightweight design to remove some material, thereby reducing rotational load and improving overall machine efficiency.

[0021] Working principle: Before the start of work, the longer end of the main shaft 1 is connected to the drive motor for belt drive. The motor drives the main shaft 1 to rotate, and the main shaft 1 drives the cutter head 2 to rotate through the key connection. At the same time, the cutter shaft 3 rotates with the cutter head 2, thereby realizing the rotation of the logarithmic spiral double-edged cutter 4. The energy generated by the rotation is used to crush the straw. The spacer sleeve 5 ensures that the logarithmic spiral double-edged cutter 4 does not interfere.

[0022] The above specific structure is a detailed description of the preferred embodiment of the present utility model, but it does not limit the implementation method and protection scope of the present utility model. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A logarithmic spiral double-edged pulverizer blade, comprising a main shaft (1), a cutter disc (2), a cutter shaft (3), and a logarithmic spiral double-edged blade (4), wherein the main shaft (1) is connected to a drive motor, and a plurality of cutter discs (2) are mounted on both sides and in the middle; characterized in that: Several cutter shafts (3) are installed on the cutter disc through circular holes. The cutter shafts (3) are arranged symmetrically on the cutter disc (2) at 90-degree intervals on the main shaft. Two adjacent logarithmic spiral double-edged cutters (4) are installed on the cutter shafts (3) in the circumferential direction and are fixed at intervals by positioning sleeves (5).

2. The logarithmic spiral-shaped double-edged crusher blade according to claim 1, characterized in that: The main shaft (1) has a keyway on its circumference and is connected to a drive motor at one end.

3. The logarithmic spiral-shaped double-edged crusher blade according to claim 1, characterized in that: The cutter head (2) has a centrally symmetrical structure with a large hole in the middle to fit the spindle (1) and four small holes along the circumference to fit the cutter shaft (3).

4. The logarithmic spiral-shaped double-edged crusher blade according to claim 1, characterized in that: The cutter shaft (3) has pin holes at both ends for connecting pins.

5. The logarithmic spiral-shaped double-edged crusher blade according to claim 1, characterized in that: The cutting edge curve of the logarithmic spiral double-edged tool (4) is a logarithmic spiral, and a double-edged angle is provided.

6. A logarithmic spiral-shaped double-edged crusher blade according to claim 1 or 5, characterized in that: The logarithmic spiral double-edged cutting tool (4) has a through hole for fitting the cutting shaft (3).

7. A logarithmic spiral-shaped double-edged crusher blade according to claim 1 or 5, characterized in that: Each of the aforementioned logarithmic spiral double-edged cutting tools (4) has the same thickness, the same cutting angle, and the same mounting dimensions.

8. The logarithmic spiral-shaped double-edged crusher blade according to claim 1, characterized in that: The logarithmic spiral double-edged cutting tool (4) is arranged in a centrally symmetrical manner and has four sets.

9. A logarithmic spiral-shaped double-edged crusher blade according to claim 1, characterized in that: The positioning sleeves (5) are spaced apart between the logarithmic spiral double-edged cutting tools (4) and are arranged symmetrically in four groups, and are subjected to overall tempering treatment.

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