# US 11,298,705 B2 · Crushing apparatus for crushing matertal to be crushed > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,298,705 B2 - Document ID: US11298705B2 - Status: Granted - Kind: B2 - Application number: 16/483,108 - Filed: 2018-01-19 - Published: 2020-01-23 - Granted: 2022-04-12 - Earliest claimed: 2017-02-27 - Assignees: Doppstadt Familienholding GmbH - Applicants: Doppstadt Familienholding GmbH - Inventors: Ferdinand Doppstadt - Web page: https://patentgrep.com/patent/US11298705B2 ## CPC - B02C 18/24: Drives - B02C 18/0084: {specially adapted for disintegrating garbage, waste or sewage} - B02C 18/06: with rotating knives - B02C 18/145: {with knives spaced axially and circumferentially on the periphery of a cylindrical rotor unit} - B02C 18/16: Details - B02C 2018/164: {Prevention of jamming and/or overload} - B02C: CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN ({household tools and machines for pulverising foodstuffs, e.g. coffee and spice mills A47J42/00; pharmaceutical mortars A61J3/02; mechanical processing of refuse and garbage B03B9/06; dressing mould materials by grinding B22C5/04}; obtaining metallic powder by crushing, grinding or milling B22F9/04; {recovery of plastics by disintegrating B29B17/00; crushing raw materials in starch making C08B30/02; beaters for papermaking D21D1/02; crushing devices specially for transport in mines E21F13/002; slag crushing devices F23J1/00; fuel milling devices in combustion apparatus F23K1/00; household devices for crushing coal F24B15/02; ice disintegrating devices F25C5/02}) ## Abstract The invention relates to a crushing apparatus (1) for crushing material to be crushed, especially for use in the field of recycling and waste processing, with at least one crushing roller (2) that can rotate about an axis of rotation (3), at least one drive device (4) for driving the crushing roller (2), and a frame (5) for supporting and mounting the crushing roller (2) and the drive device (4). According to the invention, it is provided that the crushing roller (2) and the drive device (4) form a common assembly connected to at least one damping device (16), which is frictionally and/or elastically mounted in or on the frame (5). ## Claims ### Claim 1 A crushing apparatus configured to crush a material including at least one crushing roller that can rotate about an axis of rotation, at least one motor adapted to drive the crushing roller, and a frame to hold and support the crushing roller and the motor, wherein the crushing roller and the motor are supported by at least one damping device, the at least one damping device at least partially circumferentially surrounds the motor, the at least one damping device is mounted in or on the frame, the damping device is configured for movement of the crushing roller in one or more of an axial direction and in a radial direction of the axis of rotation, and the damping device includes a flexible damper arranged in a corresponding receptable of the frame. ### Claim 2 (depends on 1) The crushing apparatus according to claim 1, wherein the crushing roller is dampened on both sides. ### Claim 3 (depends on 1) The crushing apparatus according to claim 1, wherein the damper is circular. ### Claim 4 (depends on 1) The crushing apparatus according to claim 1, wherein the damping device comprises one or more of on its outer side and the receptacle comprises on its inner side facing toward the damper, a surface with an increased coefficient of friction greater than 0.4. ### Claim 5 (depends on 1) The crushing apparatus according to one claim 1, wherein the damper has a positive-locking connection to the receptacle, and the damper comprises on its outer side one or more of indentations and protrusions for engagement with corresponding indentations and/or protrusions on the inner side of the receptacle facing toward the damper. ### Claim 6 (depends on 1) The crushing apparatus according to claim 1, wherein the rigidity of the damper is automatically adjustable. ### Claim 7 (depends on 1) The crushing apparatus according to claim 1, wherein the damper is a hollow body which can be filled with a medium. ### Claim 8 (depends on 7) The crushing apparatus according to claim 7, wherein a measuring device is provided for measuring a pressure of the medium which is coupled to a control device, and the control device is coupled to one or more of a signal device, a disconnection device of the motor, and a filling device configured to fill or empty the hollow body. ### Claim 9 (depends on 1) The crushing apparatus according to claim 1, wherein a connector is provided for the connection of the damper to the motor, wherein the connector comprises a flange plate for a torsionally rigid connection to the motor and a hollow cylindrical fastening area connected to the flange plate for the connection to the damper. ### Claim 10 (depends on 9) The crushing apparatus according to claim 9, wherein at least one fixation device is connected to one or more of the connector, the fastening area, and the flange plate in locking, torsionally rigid, manner, for the securing of at least the damping device. ### Claim 11 (depends on 1) The crushing apparatus according to claim 1, wherein to limit the axial and/or radial deflection movement of the crushing roller at least one end stop is provided. ### Claim 12 (depends on 11) The crushing apparatus according to claim 11, wherein the end stop comprises a cylindrical end stop element and a corresponding hollow cylindrical or cup-shaped section for the engagement of the end stop element, wherein the end stop element is fastened on the inside to a supporting plate which is secured to the frame. ### Claim 13 (depends on 1) The crushing apparatus of claim 1, wherein the at least one motor comprises a gearless motor. ### Claim 14 (depends on 13) The crushing apparatus according to claim 13, wherein the gearless motor is a hydraulic motor, a radial piston motor, or an electric motor. ### Claim 15 (depends on 14) The crushing apparatus according to claim 14, wherein the motor is associated with a hydraulic pump device for the hydraulic motor, wherein the motor is associated with a control device for the rotary speed setting of the crushing roller by controlling the oil flow supplied via the hydraulic pump device. ### Claim 16 A crushing apparatus comprising: a crushing roller configured to rotate about an axis of rotation; at least one motor adapted to support and drive the crushing roller; a frame to hold and support the crushing roller and the at least one motor; and a damping device to isolate and decouple the at least one crushing roller and the at least one motor from the frame, wherein: the at least one motor is supported in the frame by the damping device, the damping device at least partially circumferentially surrounds the at least one motor, the damping device is mounted to the frame, the damping device is configured to allow movement of the crushing roller and the at least one motor in one or more of an axial direction and in a radial direction relative to the axis of rotation, and the damping device includes a flexible damper. ### Claim 17 (depends on 16) The apparatus of claim 16, wherein the flexible damper is a ring or is circular. ### Claim 18 (depends on 17) The apparatus of claim 17, wherein the ring is attached to a seat of the frame. ### Claim 19 (depends on 16) The apparatus of claim 16, wherein a rigidity of the flexible damper is adjustable.