Hydraulic grass shredder

CN224605320UActive Publication Date: 2026-08-07CHINA UNITED EQUIP GRP ANYANG MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA UNITED EQUIP GRP ANYANG MASCH CO LTD
Filing Date
2025-08-29
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0002]在造纸行业,水力碎草机通过水力进行草料的输送,通过高速旋转的切割刀具将草料粉碎,而只靠切割刀具进行草料的粉碎,效率有待进一步提高

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Abstract

The utility model provides a kind of hydraulic grass crusher, including spherical shell, the bottom in spherical shell is provided with motor-driven cutting tool, horizontal cutting line is arranged along vertical spacing in spherical shell, horizontal cutting line is arranged along circumferential staggered, horizontal cutting line is arranged along the radial of the cross section circle, and the end of horizontal cutting line is detachably connected with spherical shell by connecting assembly. The utility model is provided with horizontal cutting line, and the cutting of forage covers the middle and edge of spherical shell, improves the efficiency of forage cutting, and horizontal cutting line is detachably connected, which is convenient for subsequent replacement.
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Description

Technical Field

[0001] This utility model relates to the field of papermaking technology, and in particular to a hydraulic straw shredder. Background Technology

[0002] In the papermaking industry, hydraulic straw shredders use water power to transport straw, and then use high-speed rotating cutting blades to shred the straw. However, relying solely on cutting blades for shredding has efficiency issues that need further improvement. In existing technology, to improve shredding efficiency, cutting blades are welded and fixed to the inner wall of the spherical shell of the hydraulic straw shredder. These blades primarily cut the straw near the inner wall of the spherical shell. However, when the inner diameter of the spherical shell is large, such as 90 mm... 3 60m 3 The efficiency improvement effect of the sphere is limited, and the subsequent wear of the cutting blades makes replacement inconvenient. Utility Model Content

[0003] This utility model proposes a hydraulic grass shredder. By setting horizontal cutting lines, the grass cutting covers the middle and edges of the spherical shell, improving the efficiency of grass cutting. Moreover, the horizontal cutting lines can be detached and connected for easy replacement later.

[0004] The technical solution of this utility model is implemented as follows: a water-powered grass shredder includes a spherical shell, a motor-driven cutting blade is provided at the bottom inside the spherical shell, horizontal cutting lines are arranged vertically at intervals inside the spherical shell, the horizontal cutting lines are staggered circumferentially, the horizontal cutting lines are arranged radially along the cross-sectional circle, and the ends of the horizontal cutting lines are detachably connected to the spherical shell through connecting components.

[0005] Furthermore, the connecting assembly includes a connecting seat, which is fixed to the inner wall of the spherical shell. The connecting seat is provided with a connecting groove, the end of the horizontal cutting line passes through the connecting groove, and a limiting member is provided.

[0006] Furthermore, the connecting groove is a circular through hole, and both ends of the horizontal cutting line are fixed with screws, and the limiting components are all lock nuts screwed onto the screws.

[0007] Furthermore, the connecting groove is an inlet groove with its opening facing upwards. A horizontal connecting groove is provided on one side of the inlet groove, and a retaining groove is provided at the end of the horizontal connecting groove away from the inlet groove. The bottom of the retaining groove is lower than the horizontal connecting groove.

[0008] Furthermore, the limiting component at one end of the horizontal cutting line is a fixed block, and the other end is fixed with a screw rod, with the limiting component being a locking nut screwed onto the screw rod.

[0009] Furthermore, the upper end of the spherical shell is provided with a feed inlet and a water inlet, and the bottom of the spherical shell is provided with a discharge outlet, which is connected to the grass chip pump.

[0010] Furthermore, a sieve plate is installed inside the spherical shell between the cutting tool and the discharge port.

[0011] The beneficial effects of this utility model are: This invention improves the efficiency of grass cutting by setting a horizontal cutting line to cover the middle and edge of the spherical shell; moreover, the horizontal cutting line is detachably connected to the spherical shell, which facilitates subsequent replacement.

[0012] The connecting component of this utility model has a simple structure. It only requires the horizontal cutting line to pass through the connecting groove and the limiting member to prevent it from leaving the connecting groove, which facilitates the installation and removal of the horizontal cutting line. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in 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.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cross-section of a spherical shell. Figure 3 for Figure 1 A magnified view of part A in the image; Figure 4 for Figure 1 A magnified view of part B in the image; Figure 5 This is a schematic diagram of the connecting groove structure in Example 1; Figure 6 This is a schematic diagram of the connecting groove structure in Example 2.

[0015] 1. Spherical shell, 2. Rotating shaft, 3. Motor, 4. Cutting tool, 5. Horizontal cutting line, 6. Connecting assembly, 7. Connecting seat, 8. Inlet groove, 9. Horizontal connecting groove, 10. Slot, 11. Fixing block, 12. Locking nut, 13. Feed inlet, 14. Water inlet, 15. Discharge outlet, 16. Screen plate, 17. Circular through hole. Detailed Implementation

[0016] 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.

[0017] Example 1 like Figure 1 As shown, a water-powered grass shredder includes a spherical shell 1. The bottom of the spherical shell 1 is connected to a rotating shaft 2 via a bearing. The rotating shaft 2 is driven to rotate by a motor 3. A cutting blade 4 is fixed on the rotating shaft 2. This part of the structure belongs to the current technology.

[0018] like Figure 1-5 As shown, horizontal cutting lines 5 are vertically spaced within the spherical shell 1, staggered circumferentially, and radially arranged along the cross-sectional circle of the spherical shell 1. The ends of the horizontal cutting lines 5 are detachably connected to the spherical shell 1 via a connecting assembly 6. The connecting assembly 6 includes a connecting seat 7, which is welded and fixed to the inner wall of the spherical shell 1. The connecting seat 7 has a connecting groove, which is an upward-opening inlet groove 8. A horizontal connecting groove 9 is provided on one side of the inlet groove 8, extending along the rotation direction of the cutting tool 4. Figure 5 (in the direction of the middle arrow), a slot 10 is provided at the end of the horizontal connecting groove 9 away from the inlet groove 8, and the bottom of the slot 10 is lower than the horizontal connecting groove 9.

[0019] The end of the horizontal cutting line 5 enters the slot 10 through the inlet groove 8 and the horizontal connecting groove 9. One end of the horizontal cutting line 5 is fixed with a fixing block 11, the outer diameter of which is larger than that of the slot 10. The other end of the horizontal cutting line 5 is fixed with a screw rod, and a locking nut 12 is screwed onto the screw rod. The tension of the horizontal cutting line 5 is adjusted by the locking nut 12. When the horizontal cutting line 5 needs to be replaced, the locking nut 12 can be removed.

[0020] The upper end of the spherical shell 1 is provided with a feed inlet 13 and a water inlet 14, and the bottom of the spherical shell 1 is provided with a discharge outlet 15, which is connected to the grass chip pump. A screen plate 16 is fixed inside the spherical shell 1 between the cutting blade 4 and the discharge outlet 15.

[0021] Forage enters the spherical shell 1 through inlet 13, and water enters through inlet 14. When the cutting blade 4 is driven by motor 3 to rotate at high speed, it cuts the forage into grass chips. The grass chips are screened by sieve plate 16, and the grass chips that pass through sieve plate 16 are discharged through outlet 15 and grass chip pump. When the cutting blade 4 rotates at high speed, it also drives the water and forage inside the spherical shell 1 to rotate at high speed. When the grass chips rotate at high speed and hit the horizontal cutting line 5, they are cut off, which improves the cutting efficiency of the forage.

[0022] Example 2 This embodiment is basically the same as Embodiment 1, except that: Figure 3 and 6 As shown, the connecting groove is a circular through hole 17. Both ends of the horizontal cutting line 5 are fixed with screws. After the screws pass through the connecting groove on the same side, they are screwed with locking nuts 12. The horizontal cutting line 5 can be removed by removing the locking nuts 12. The horizontal cutting line 5 is a metal wire that can be wound up, making it easy to load and unload without space restrictions.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic grass shredder, comprising a spherical shell, wherein a motor-driven cutting blade is disposed at the bottom of the spherical shell, characterized in that: The spherical shell has horizontal cutting lines spaced vertically inside. The horizontal cutting lines are staggered circumferentially and are arranged radially along the cross-sectional circle. The ends of the horizontal cutting lines are detachably connected to the spherical shell through connecting components.

2. The hydraulic grass shredder according to claim 1, characterized in that: The connecting assembly includes a connecting seat, which is fixed to the inner wall of the spherical shell. The connecting seat is provided with a connecting groove, the end of the horizontal cutting line passes through the connecting groove, and a limiting member is provided.

3. A hydraulic grass shredder according to claim 1, characterized in that: The connecting groove is a circular through hole, and both ends of the horizontal cutting line are fixed with screws. The limiting parts are all lock nuts screwed onto the screws.

4. A hydraulic grass shredder according to claim 1, characterized in that: The connecting groove is an inlet groove with its opening facing upwards. A horizontal connecting groove is provided on one side of the inlet groove. The horizontal connecting groove extends along the rotation direction of the cutting tool. A retaining groove is provided at the end of the horizontal connecting groove away from the inlet groove. The bottom of the retaining groove is lower than the horizontal connecting groove.

5. A hydraulic grass shredder according to claim 4, characterized in that: The limiting component at one end of the horizontal cutting line is a fixed block, and the other end is fixed with a screw rod. The limiting component is a lock nut screwed onto the screw rod.

6. A hydraulic grass shredder according to claim 1, characterized in that: The upper end of the spherical shell is provided with a feed inlet and a water inlet, and the bottom of the spherical shell is provided with a discharge outlet, which is connected to the grass chip pump.

7. A hydraulic grass shredder according to claim 6, characterized in that: A sieve plate is installed inside the spherical shell between the cutting tool and the discharge port.