A cutter shaft drum of a stone crusher

Abstract

This utility model discloses a cutter shaft roller for a stone crusher, including a cutter shaft, cutter heads, output gears, side plate assemblies, intermediate shaft assemblies, and connecting shaft assemblies. The cutter shaft includes a cutter shaft tube with cutter seats evenly arranged on it, and cutter heads disposed within the cutter seats. Each cutter head includes a mounting post with a conical cutter cone at its top, the cone being inlaid with a hard alloy in a pointed cone structure. Shaft heads are located on the left and right sides of the cutter shaft tube, and output gears are respectively mounted on the left and right shaft heads. The side plate assemblies are respectively fitted onto the left and right shaft heads of the cutter shaft tube. The intermediate shaft assembly and connecting shaft assembly are both mounted on the side plate assemblies, and the intermediate shaft assembly is connected to the connecting shaft assembly and the output gears for transmission. The cutter heads of this utility model are made of ultra-high strength wear-resistant steel with hard alloy inlaid at the top, providing superior crushing capabilities for materials such as stones and construction waste. The cutter heads are not easily damaged and have a long service life.

Description

Technical Field

[0001] This utility model relates to the field of stone crusher technology, specifically to a cutter shaft roller for a stone crusher. Background Technology

[0002] For a long time, rocks in the land have restricted the expansion of arable land and caused crop failures. During plowing and harvesting, the presence of rocks in the fields often causes plowshares to break and blades to be damaged. During sowing, fertilization, and pesticide spraying, the rocks result in uneven distribution of seeds, fertilizers, and pesticides, affecting crop growth. To remove rocks from the fields, stone pickers are used to collect the rocks and push them outside the fields; however, this method is inefficient and occupies land. Using a stone crusher can directly crush rocks in the field, which is beneficial for mechanized work, does not reduce the soil layer thickness, does not occupy land, and does not affect crop growth. However, existing stone crushers have easily worn cutter shafts, rollers, and cutter heads, and use a single drive, resulting in poor transmission stability. Utility Model Content

[0003] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a cutter shaft roller for a stone crusher.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a cutter shaft roller for a stone crusher, comprising a cutter shaft, cutter heads, output gears, side plate assemblies, intermediate shaft assemblies, and connecting shaft assemblies. Its innovation lies in the following: the cutter shaft includes a cutter shaft tube, on which cutter holders are evenly arranged, and cutter heads are disposed within the cutter holders; the cutter head includes a mounting post, the top of which is provided with a tapered cutter cone, the tapered cutter cone being inlaid with a hard alloy, the hard alloy being a pointed cone structure; shaft heads are provided on the left and right sides of the cutter shaft tube, and output gears are respectively disposed on the left and right shaft heads; the side plate assemblies are respectively fitted onto the left and right shaft heads of the cutter shaft tube; the intermediate shaft assembly and the connecting shaft assembly are both disposed on the side plate assemblies, and the intermediate shaft assembly is respectively connected to the connecting shaft assembly and the output gears for transmission.

[0005] Furthermore, the tool holder is arranged in a spiral.

[0006] Furthermore, the cutter head is integrally formed and made of ultra-high strength wear-resistant steel.

[0007] Furthermore, the side plate assembly includes a side plate with multiple mounting holes, which correspond to the intermediate shaft assembly, the connecting shaft assembly, and the output gear, respectively. A bearing seat is provided in the mounting hole of the output gear, and a bearing is provided in the bearing seat. An oil seal is provided on one side of the bearing, and a gear spacer is provided on the other side. An anti-winding seat is sleeved on the outside of the bearing seat.

[0008] Furthermore, the intermediate shaft assembly includes an intermediate shaft, an outer bearing is sleeved on the outer surface of the intermediate shaft, an intermediate gear is sleeved on the outer surface of the outer bearing, and the intermediate gear is meshed and transmitted with the output gear and the connecting shaft assembly respectively.

[0009] Furthermore, the connecting shaft assembly includes a connecting shaft, one end of which is sleeved with an input gear, which meshes with an intermediate gear for transmission. Rotary bearings are provided on the left and right sides of the connecting shaft, and a connecting shaft tube is provided between the rotary bearings.

[0010] The beneficial effects of this utility model after adopting the above structure are as follows:

[0011] The blade of this utility model is made of ultra-high strength wear-resistant steel and inlaid with hard alloy at the top, which has a strong crushing ability for materials such as stones and construction waste. The blade is not easy to be damaged and has a long service life.

[0012] This utility model adopts a dual-connecting shaft assembly and dual-side gear drive, which ensures stable and reliable transmission.

[0013] This utility model adopts a thickened cutter shaft tube, resulting in a high-strength cutter shaft drum; the cutter holder is arranged in a spiral pattern, which improves crushing efficiency, enhances material flow, and features a compact structure and strong adaptability.

[0014] This utility model has anti-winding seats welded on the side plates to prevent flexible materials such as iron wires, ropes, wires and branches from getting tangled on the shaft, which could cause equipment failure. The anti-winding seats are also strong and prevent stones and rubble from impacting normal operation.

[0015] This invention allows for product diversification by changing the length of the roller and the number of cutters. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the cutter shaft in this utility model;

[0018] Figure 3 This is a schematic diagram of the cutter head in this utility model;

[0019] Figure 4 This is a cross-sectional view of the side panel assembly in this utility model;

[0020] Figure 5 This is a schematic diagram of the intermediate shaft assembly in this utility model;

[0021] Figure 6 This is a schematic diagram of the connecting shaft assembly in this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Tool shaft, 11. Tool shaft tube, 12. Tool holder, 13. Shaft head, 2. Tool head, 21. Mounting post, 22. Tool taper, 23. Carbide, 3. Output gear, 4. Side plate assembly, 41. Side plate, 42. Bearing housing, 43. Bearing, 44. Oil seal, 45. Gear spacer, 46. Anti-winding seat, 5. Intermediate shaft assembly, 51. Intermediate shaft, 52. Outer bearing, 53. Intermediate gear, 6. Connecting shaft assembly, 61. Connecting shaft, 62. Input gear, 63. Rotary bearing, 64. Connecting shaft tube. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model.

[0026] See Figure 1-3 A cutter shaft roller for a stone crusher includes a cutter shaft 1, a cutter head 2, an output gear 3, a side plate assembly 4, an intermediate shaft assembly 5, and a connecting shaft assembly 6. The cutter shaft 1 includes a cutter shaft tube 11, on which cutter holders 12 are evenly arranged, and cutter heads 2 are disposed within the cutter holders 12. The cutter head 2 includes a mounting post 21, and a tapered cutter cone portion 22 is provided at the top of the mounting post 21. A hard alloy 23 is inlaid inside the cutter cone portion 22, and the hard alloy has a pointed cone structure. Shaft heads 13 are provided on the left and right sides of the cutter shaft tube 11, and output gears 3 are respectively provided on the left and right shaft heads. The side plate assembly 4 is respectively sleeved on the left and right shaft heads of the cutter shaft tube 11. The intermediate shaft assembly 5 and the connecting shaft assembly 6 are both disposed on the side plate assembly 4, and the intermediate shaft assembly 5 is connected to the connecting shaft assembly 6 and the output gear 3 respectively. Specifically, the connecting shaft assembly 6 is externally driven, and drives the cutter shaft 1 and the cutter head 2 to rotate through the intermediate shaft assembly 5 and the output gear 3. The top of the cutter head 2 is inlaid with hard alloy 23, which has a strong crushing ability for materials such as stones and construction waste. The cutter head is not easily damaged and has a long service life. There is one connecting shaft assembly on each side, and the transmission is stable and reliable. The cutter shaft is bolted to the two side plate assemblies 4, which is simple and convenient to install.

[0027] In this embodiment, the cutter holder 12 is arranged in a spiral. The spiral arrangement of the cutter holder 12 improves crushing efficiency, enhances material flow, and provides a compact structure with strong adaptability.

[0028] In this embodiment, the cutter head 2 is integrally formed and made of ultra-high strength wear-resistant steel. The ultra-high strength wear-resistant steel has a yield strength greater than 1180MPa, a tensile strength greater than 1380MPa, sufficient toughness, high specific strength and yield strength ratio, as well as good weldability and formability.

[0029] See Figure 4 The side plate assembly 4 includes a side plate 41 with multiple mounting holes corresponding to the intermediate shaft assembly, connecting shaft assembly, and output gear. A bearing seat 42 is installed within the mounting hole of the output gear, and a bearing 43 is installed within the bearing seat 42. An oil seal 44 is installed on one side of the bearing 43, and a gear spacer 45 is installed on the other side. An anti-winding seat 46 is fitted onto the outside of the bearing seat 42. The anti-winding seat 46 prevents flexible materials such as wires, ropes, electrical wires, and branches from tangling around the shaft, thus avoiding equipment malfunctions. The anti-winding seat is also strong enough to prevent impacts from stones and rubble from affecting normal operation.

[0030] See Figure 5 The intermediate shaft assembly 5 includes an intermediate shaft 51, an outer bearing 52 is sleeved on the outer surface of the intermediate shaft 51, an intermediate gear 53 is sleeved on the outer surface of the outer bearing 52, and the intermediate gear 53 is meshed and connected to the output gear 3 and the connecting shaft assembly 6 respectively.

[0031] See Figure 6 The connecting shaft assembly 6 includes a connecting shaft 61, one end of which is sleeved with an input gear 62. The input gear 62 meshes with an intermediate gear 53 for transmission. Rotary bearings 63 are provided on both sides of the connecting shaft 61, and a connecting shaft tube 64 is provided between the rotary bearings 63. The gearbox output shaft drives the connecting shaft 61 and the input gear 62 to rotate. The input gear 62 drives the intermediate gear 53 to rotate. The intermediate gear 53 drives the output gear 3 to rotate. The output gear 3 drives the cutter shaft 1 and the cutter head 2 to rotate for stone crushing operations. The double connecting shaft assembly 6 adopts double-sided gear drive, which ensures stable and reliable transmission.

[0032] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A cutterhead drum of a rock breaker comprising a cutter shaft, a cutter head, an output gear, a side plate assembly, an intermediate shaft assembly and a connecting shaft assembly, characterized in that: The cutter shaft includes a cutter shaft tube, on which cutter holders are evenly arranged, and cutter heads are disposed within the cutter holders. Each cutter head includes a mounting post, and a tapered cutter cone is provided at the top of the mounting post. A cemented carbide is inlaid inside the tapered cutter cone, and the cemented carbide has a pointed cone structure. Shaft heads are provided on the left and right sides of the cutter shaft tube, and output gears are respectively provided on the left and right shaft heads. Side plate assemblies are respectively fitted onto the left and right shaft heads of the cutter shaft tube. The intermediate shaft assembly and the connecting shaft assembly are both disposed on the side plate assemblies, and the intermediate shaft assembly is connected to the connecting shaft assembly and the output gears for transmission.

2. A cutterhead drum for a stone crusher as claimed in claim 1, characterized in that: The tool holders are arranged in a spiral.

3. A cutterhead drum for a stone crusher as claimed in claim 1, characterized in that: The cutter head is integrally formed and made of ultra-high strength wear-resistant steel.

4. The cutterhead drum of a lithotripter according to claim 1, characterized in that: The side plate assembly includes a side plate with multiple mounting holes, which correspond to the intermediate shaft assembly, the connecting shaft assembly, and the output gear, respectively. A bearing seat is provided in the mounting hole of the output gear, and a bearing is provided in the bearing seat. An oil seal is provided on one side of the bearing, and a gear spacer is provided on the other side. An anti-winding seat is sleeved on the outside of the bearing seat.

5. The cutterhead drum of a lithotripter according to claim 1, characterized in that: The intermediate shaft assembly includes an intermediate shaft, an outer bearing is sleeved on the outer surface of the intermediate shaft, an intermediate gear is sleeved on the outer surface of the outer bearing, and the intermediate gear is meshed and connected to the output gear and the connecting shaft assembly for transmission.

6. A cutterhead drum for a lithotripter according to claim 5, characterised in that: The connecting shaft assembly includes a connecting shaft, one end of which is sleeved with an input gear, which meshes with an intermediate gear for transmission. Rotary bearings are provided on the left and right sides of the connecting shaft, and a connecting shaft tube is provided between the rotary bearings.

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