A crusher rotor body of variable swing diameter

Abstract

The utility model relates to a kind of broken machine rotor body with variable rotary diameter, it is related to broken machine technical field, including rotating shaft and hammer head assembly being set in the rotating shaft around, and the hammer head assembly is connected between the rotating shaft by telescopic structure.This utility model can make broken machine according to the gap of the clearance of rotor body and broken machine crushing cavity to adjust broken material granularity, reach the substantial increase of broken machine production quantity.Meanwhile, due to the wear of hammer head, hammer head seat can be extended by oil cylinder at any time, the clearance of rotor body and broken machine crushing cavity can be automatically guaranteed, ensure that broken machine production quantity will not be reduced.Meanwhile, hammer head is replaced conveniently, maintenance time is short, and use and maintenance cost are low.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, and in particular to a crusher rotor with a variable rotation diameter. Background Technology

[0002] As a core piece of equipment in the building materials and aggregate industries, the rotor structure of crushers directly affects crushing efficiency and product quality. Traditional crushers (such as hammer crushers and impact crushers) use a fixed rotation diameter rotor design, with the hammers rigidly connected or bolted to the rotor frame. During operation, the hammers continuously collide and wear with the material, causing their working end faces to gradually shorten, thus reducing the effective rotation diameter of the rotor. This change leads to a gradual increase in the initial gap between the rotor and the crushing chamber, causing the following problems:

[0003] Decreased efficiency and output: Increased gaps result in insufficient residence time of materials in the crushing chamber, and some large particles are discharged without being fully crushed, requiring multiple cycles of processing; at the same time, uneven gaps will cause material flow turbulence, aggravate equipment vibration, and further reduce the energy efficiency ratio.

[0004] Product quality fluctuations: Increased gaps lead to uneven distribution of crushing force, resulting in a wider range of finished product particle size distribution, making it difficult to meet high standards.

[0005] High maintenance costs: To restore the initial clearance, frequent machine shutdowns are required to manually adjust the hammer head position or replace the hammer head with a new one. Utility Model Content

[0006] The purpose of this invention is to provide a crusher rotor with a variable rotation diameter to solve the problem of efficiency reduction caused by hammer wear, achieve automatic gap compensation, increase output and reduce maintenance costs.

[0007] This utility model is achieved by the following technical solution: a crusher rotor with a variable rotation diameter, characterized in that it includes a rotating shaft and a hammer assembly disposed around the rotating shaft, wherein the hammer assembly and the rotating shaft are connected by a telescopic structure.

[0008] Furthermore, the rotating shaft includes a main shaft and a rotor frame, with the rotor frame disposed outside the main shaft and connected to the hammer assembly.

[0009] Furthermore, the hammer assembly includes a hammer and a hammer base.

[0010] Furthermore, the telescopic structure includes a hydraulic cylinder.

[0011] Furthermore, the hydraulic cylinder is fixed to the rotating shaft by bolts, and the hammer assembly is connected to the telescopic rod of the hydraulic cylinder. The rotation diameter of the hammer assembly is adjusted by the extension or retraction of the hydraulic cylinder.

[0012] Furthermore, the hammerhead base is provided with a dovetail groove; the hammerhead mounting end is dovetail-shaped, which cooperates with the dovetail groove to connect the hammerhead to the hammerhead base.

[0013] Furthermore, the hammer assembly has multiple sets in both the axial and circumferential directions of the rotating shaft.

[0014] The variable rotation diameter crusher rotor body described in this utility model has the following advantages:

[0015] This invention uses a hydraulic cylinder to extend or retract, raising or lowering the hammer holder and hammer array, thereby changing the rotor's rotation diameter and adjusting the gap between the rotor and the crushing chamber. This invention allows the crusher to adjust the gap between the rotor and the crushing chamber according to the required particle size of the material to be crushed, significantly increasing crusher output. Simultaneously, due to hammer wear, the hydraulic cylinder can extend the hammer holder at any time, automatically maintaining the gap between the rotor and the crushing chamber, ensuring that crusher production does not decrease. Furthermore, hammer replacement is convenient, maintenance time is short, and operating and maintenance costs are low. Attached Figure Description

[0016] 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. 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 the structures shown in these drawings without creative effort.

[0017] Figure 1 A schematic diagram of a crusher rotor with a variable rotation diameter;

[0018] Figure 2 for Figure 1 Schematic diagram of the cross section along the AA direction;

[0019] In the diagram, 1-rotor frame, 2-hammer head seat, 3-hammer head, 4-oil cylinder, 5-main shaft, 6-Z-type expansion sleeve. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] like Figure 1 As shown, a crusher rotor with a variable rotation diameter includes a rotor frame 1, a hammer seat 2, hammers 3, a hydraulic cylinder 4, and a main shaft 5. The hammers 3 are mounted on the hammer seat 2, which is connected to the rotor frame 1 via the hydraulic cylinder 4. The main shaft 5 passes through the rotor frame 1.

[0023] By extending or retracting the hydraulic cylinder 4, the hammer head seat 2 and hammer head 3 are raised or lowered, thereby changing the rotation diameter of the rotor body.

[0024] The hammerhead base 2 is provided with a dovetail groove, and the mounting end of the hammerhead 3 is dovetail-shaped, which cooperates with the dovetail groove to connect the hammerhead 3 to the hammerhead base 2.

[0025] Z-shaped expansion sleeves 6 are provided at both ends of the rotor frame 1 where it connects to the main shaft 5, and the rotor frame 1 is connected to the main shaft 5 through the Z-shaped expansion sleeves 6.

[0026] The main shaft 5 is a hollow structure with several holes in the radial direction.

[0027] The rotor frame 1 is square in shape, but it is not limited to square; it can also be triangular to hexagonal.

[0028] The horizontal arrangement of the hammerhead 3 and the hammerhead base 2 can range from three rows to eight rows.

[0029] Each side of the rotor frame 1 is equipped with a row of hydraulic cylinders 4.

[0030] The length of the hammer head 3 can also be divided into multiple length segments.

[0031] This invention allows the crusher to adjust the gap between the rotor and the crushing chamber according to the required particle size of the material to be crushed, thereby significantly increasing the crusher's output. Simultaneously, due to wear on the hammers 3, the hammer seat 2 can be extended at any time via the hydraulic cylinder 4, automatically maintaining the gap between the rotor and the crushing chamber and ensuring that the crusher's production output does not decrease. Furthermore, hammer replacement is convenient, maintenance time is short, and operating and maintenance costs are low.

[0032] The above embodiments describe the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Modifications and variations made by those skilled in the art without departing from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A variable swing diameter crusher rotor body, characterised in that, It includes a rotating shaft and a hammer assembly disposed around the rotating shaft. The hammer assembly is connected to the rotating shaft by a telescopic structure. The telescopic structure includes a hydraulic cylinder (4). The hydraulic cylinder (4) is fixed to the rotating shaft by bolts. The hammer assembly is connected to the telescopic rod of the hydraulic cylinder (4). The rotation diameter of the hammer assembly is adjusted by the extension or retraction of the hydraulic cylinder.

2. A variable swing diameter crusher rotor body according to claim 1, characterised in that, The rotating shaft includes a main shaft (5) and a rotor frame (1). The rotor frame (1) is located outside the main shaft (5) and is connected to the hammer assembly.

3. A variable swing diameter crusher rotor body according to claim 1, characterised in that, The hammer assembly includes a hammer (3) and a hammer base (2).

4. A variable swing diameter crusher rotor body according to claim 3, characterised in that, The hammer head seat (2) is provided with a dovetail groove; the hammer head (3) is mounted at a dovetail shape, which cooperates with the dovetail groove to connect the hammer head (3) to the hammer head seat (2).

5. A variable swing diameter crusher rotor body as claimed in claim 1, characterised in that, The hammer assembly has multiple sets in both the axial and circumferential directions of the rotating shaft.

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