CN-224218962-U - Lightweight hammer, crushing mechanism and straw crusher

Abstract

The utility model relates to the technical field of straw crushing, in particular to a lightweight hammer sheet, a crushing mechanism and a straw crusher, wherein the lightweight hammer sheet comprises a body, a first mounting hole is formed in the body, the body is provided with a group of two long sides which are symmetrically arranged, the two long sides are connected through two short sides which are symmetrically arranged, the whole long side is in a concave arc shape, crushing saw teeth are arranged at the position, close to the short sides, of the long sides, on one hand, the long sides of the hammer sheet are designed according to a concave curve, the weight of the whole structure is reduced while the sufficient width of a crushing end is ensured, the weight of the lightweight hammer sheet is reduced, and on the other hand, due to the fact that the saw teeth edges are arranged at the tail ends of the long sides, the cutting function on the straw can be increased when the hammer sheet collides with the straw, and the crushing effect of the crusher is finally improved.

Inventors

• Yong kai
• YANG YA
• ZUO LIMING
• WANG ZHENGBING
• Yuan Zhihuan

Assignees

• 芜湖职业技术学院

Dates

Publication Date

20260512

Application Date

20250409

Claims (4)

1. 1. The light hammer is characterized by comprising a body, wherein a first mounting hole is formed in the body, the body is provided with a group of two long sides which are symmetrically arranged, the two long sides are connected through two short sides which are symmetrically arranged, the whole long side is in a concave arc shape, and crushing saw teeth are arranged at positions, close to the short sides, of the long sides; The two first mounting holes are symmetrically arranged on the central lines of the two long sides; wherein the tooth spacing of the crushing saw teeth is gradually changed, and the tooth spacing gradually increases towards the short side direction; The length of the long side is 180+/-10 mm, the length of the short side is 35+/-5 mm, and the radius of the arc is 300+/-10 mm.
2. 2. The utility model provides a crushing mechanism, its characterized in that includes main shaft and a plurality of axle sleeve, interval fixed mounting has a plurality of hammer grillages on the main shaft, be provided with a plurality of centrosymmetric second mounting holes on the hammer grillage, axle sleeve fixed mounting is in the second mounting hole, rotates on the axle sleeve in the middle of every two hammer grillages and installs the lightweight hammer, the lightweight hammer is claim 1.
3. 3. The shredder mechanism of claim 2, wherein 9 hammer ledges are fixedly mounted on the spindle at intervals, and 4 centrally symmetrical second mounting holes are formed in the hammer ledges.
4. 4. A straw pulverizer, characterized in that the straw pulverizer has a pulverizing mechanism according to claim 2.

Description

Lightweight hammer, crushing mechanism and straw crusher Technical Field The utility model relates to the technical field of straw crushing, in particular to a lightweight hammer, a crushing mechanism and a straw crusher. Background The hammer is one of the core components of the straw pulverizer, is approximately of a cuboid structure with a certain thickness, is rotatably arranged on the shaft sleeve, and when in operation, the shaft sleeve drives the hammer to rotate, and the hammer swings around the shaft sleeve under the action of self gravity in the rotation process, so that the generated impact force is utilized to pulverize the straw entering the working cavity of the pulverizer. Currently, the common structure of the hammer sheet in the market is a standard rectangular structure, and the structure optimization research of a few hammer sheets is only reflected in the improvement of the performance of the hammer sheets, and is not more comprehensively considered in the aspects of structure light weight and energy saving and efficiency improvement. Disclosure of Invention In view of the above, the present utility model aims to provide a lightweight hammer, a crushing mechanism and a straw crusher, so as to optimize the hammer and improve energy efficiency. With the above object in view, as a first aspect of the present utility model, there is provided a lightweight hammer comprising a body, wherein a first mounting hole is formed in the body, the body has a set of two long sides symmetrically arranged, the two long sides are connected by two short sides symmetrically arranged, the long sides are integrally in a concave arc shape, and crushing saw teeth are arranged at positions of the long sides close to the short sides. As an alternative embodiment, two first mounting holes are provided, and the two first mounting holes are symmetrically arranged on the central lines of the two long sides. As an alternative embodiment, the tooth pitch of the crushing saw teeth is gradually changed, and the tooth pitch gradually increases toward the short side direction. As an alternative embodiment, the length of the long side is 180±10mm, the length of the short side is 35±5mm, and the radius of the arc is 300±10mm. As a second aspect of the present utility model, there is provided a pulverizing mechanism, including a main shaft and a plurality of shaft sleeves, wherein a plurality of hammer frames are fixedly mounted on the main shaft at intervals, a plurality of second mounting holes with central symmetry are provided on the hammer frames, the shaft sleeves are fixedly mounted in the second mounting holes, and a lightweight hammer is rotatably mounted on the shaft sleeve in the middle of each two hammer frames, and is the lightweight hammer described above. As an alternative implementation mode, 9 hammer plate frames are fixedly installed on the main shaft at intervals, and 4 second installation holes which are symmetrical in center are formed in the hammer plate frames. As a third aspect of the present utility model, there is provided a straw pulverizer having the pulverizing mechanism as described above. Compared with the traditional pulverizer hammer, the hammer has the advantages that the hammer is obviously optimized in light weight and pulverizing performance, on one hand, the long side of the hammer is designed according to the concave curve, the weight of the whole structure is reduced while the sufficient width of the pulverizing end is ensured, and the light weight is realized, and on the other hand, due to the fact that the sawtooth edge is arranged at the tail end of the long side, the cutting function on the straw can be increased when the hammer collides with the straw, and the pulverizing effect of the pulverizer is finally improved. Drawings In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only of the utility model and that other drawings can be obtained from them without inventive effort for a person skilled in the art. FIG. 1 is a schematic view of a comminution mechanism according to an embodiment of the present utility model; FIG. 2 is a side view of a shredder mechanism according to an embodiment of the present utility model; fig. 3 is a schematic view of a hammer according to an embodiment of the present utility model. Marked in the figure as: 10. The main shaft, 20, the shaft sleeve, 30, the hammer sheet, 31, the body, 32, the long side, 33, the short side, 34, the first mounting hole, 35, the broken saw teeth, 40 and the hammer plate frame. Detailed Description The present utility model will be further described in detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present utility model more apparent. It