Shredder knife replacement device

Abstract

A shredder knife replacement device is disclosed, comprising a knife dismantling electric winch trolley for separating a plurality of knives coupled to a shredder body from the shredder body, wherein the knife dismantling electric winch trolley comprises: a pair of clamps that press against each of the circumferences of a knife positioned at one end of the shaft among the plurality of knives surrounding the shaft of the shredder body; a pair of first chains extending from each of the pair of clamps; and a power means connected to the pair of first chains and generating an external force in a direction designated to pull the pair of first chains. In addition to this, various embodiments identified through this document are possible.

Description

Technology Field

[0001] The embodiments disclosed in this document relate to a shredder knife replacement device. Background Technology

[0002] Waste may include household waste, industrial waste, designated waste, medical waste, and radioactive waste. These wastes may be treated according to designated methods, such as recycling / chemical treatment, incineration, pyrolysis, landfilling, or solidification.

[0003] Among these, incineration can be classified as a chemical method as one of the intermediate treatment processes in the waste management system. Incineration can reduce the volume of waste by 95 to 99% compared to burying it in the ground, while also reducing its weight by 80 to 85%, and can also save landfill space, so it can be an effective and sustainable waste treatment method.

[0004] When waste is treated by the incineration method, it may undergo a crushing process before being incinerated in an incineration facility. For example, waste sorted at a waste sorting plant may undergo a first crushing process in which it is cut to 50 mm or less and a second crushing process in which it is cut to 30 mm or less.

[0005] Waste materials can cause damage to the shredder each time they undergo the shredding process. For example, the blades of the shredder's knives can wear down as they cut through solid waste. Worn-out knives can be replaced manually by an operator. The problem to be solved

[0006] When a worker replaces the shredder's knife manually, the worker may be exposed to dangerous situations. These dangerous situations may include risks of pinching, injury, and tipping. The risk of pinching may be, for example, the risk of the worker's body being caught by a support structure (e.g., a rail) while pulling out the shredder's body to replace the knife. The risk of injury may be, for example, the risk of the worker's hand being pinched by a hammer or injury to a part of the worker's body (e.g., an eye) by knife fragments when using a hammer to separate the shredder's knife from the shredder's body. The risk of tipping may be, for example, the risk of the worker losing balance when using a pipe to separate the shredder's knife from the shredder's body.

[0007] Moreover, the task of manually replacing the shredder's knife by a worker can take a considerable amount of time, despite involving various dangerous situations. For example, when using a support structure to pull out the shredder's main body, the friction with the floor surface can cause the work to take an excessive amount of time. This leads to a physical burden on the worker, which can further exacerbate the aforementioned dangerous situations.

[0008] In the various embodiments disclosed in this document, a shredder knife replacement device can be provided that reduces dependency on an operator when replacing a shredder knife and performs the replacement operation automatically. means of solving the problem

[0009] According to one embodiment, a shredder knife replacement device includes an electric winch trolley for dismantling knives for separating a plurality of knives coupled to a shredder body from the shredder body, and the electric winch trolley for dismantling knives may include: a pair of clamps for pressing each of the circumferences of a knife positioned at one end of the shaft among the plurality of knives surrounding the shaft of the shredder body; a pair of first chains extending from each of the pair of clamps; and a power means connected to the pair of first chains and generating an external force in a designated direction to pull the pair of first chains.

[0010] According to one embodiment, the pair of clamps can be moved in the designated direction in conjunction with the pair of first chains as the external force is generated.

[0011] According to one embodiment, the pair of first chains may have flexibility to correspond to the angle of deviation when both ends of a knife placed at one end are twisted at a specified angle around the shaft.

[0012] According to one embodiment, the electric winch trolley for knife dismantling may further include a pipe that is fitted and fixed around the circumference of one end portion positioned at a location corresponding to the designated direction among the two ends of the shaft.

[0013] According to one embodiment, the electric winch trolley for knife dismantling may be movable to correspond to the positions of the first arrangement and the first arrangement, when the shafts are arranged side by side on each of the two sides of the crusher body and the plurality of knives are arranged in a first arrangement and a second arrangement on each of the shafts arranged side by side.

[0014] According to one embodiment, the electric winch trolley for knife dismantling can move the position of the pair of clamps and the pair of first chains to correspond to the angle of misalignment when the alignment state of the pair of clamps and the pair of first chains is misaligned by a specified angle with respect to the axial direction of the shaft.

[0015] According to one embodiment, the shredder knife replacement device further includes a movable carriage for withdrawing the shredder body from the shredder installation space to the outside, and the movable carriage for withdrawing the body may include a lug having a specified size; a plurality of rollers arranged at specified intervals on the upper surface of the lug so that the shredder body can be placed on the upper surface of the lug; and a plurality of casters placed on the lower surface of the lug. Effects of the invention

[0016] A shredder knife replacement device according to various embodiments disclosed in this document can reduce the risk of pinching, injury, and tipping of a worker by reducing reliance on the worker and automatically replacing the shredder knife.

[0017] In addition, the shredder knife replacement device according to the various embodiments disclosed in this document can reduce the time required for replacement work by mechanizing or equipment-based replacement of the shredder knife.

[0018] In addition, the shredder knife replacement device according to the various embodiments disclosed in this document can reduce the number of workers by reducing the time required for the shredder knife replacement operation.

[0019] In addition to this, various effects that can be identified directly or indirectly through this document may be provided. Brief explanation of the drawing

[0020] FIG. 1a is a plan view showing the state in which an electric winch trolley for dismantling a knife of a shredder knife replacement device according to one embodiment is connected to the main body of the shredder. FIG. 2a is a plan view showing the state in which an electric winch trolley for dismantling a knife of a shredder knife replacement device according to one embodiment rotates according to the knife position. FIG. 2a is a plan view showing a movable trolley for pulling out the main body of a shredder knife replacement device according to one embodiment. FIG. 2b is a side view showing a movable trolley for pulling out the main body of a shredder knife replacement device according to one embodiment. Figure 3 is an image showing the separation of a knife using an electric winch trolley for knife dismantling of a shredder knife replacement device according to one embodiment. FIG. 4 is an image showing the main body being pulled out using a movable cart for pulling out the main body of a shredder knife replacement device according to one embodiment. In relation to the description of the drawings, the same reference number may be assigned to identical or corresponding components. Specific details for implementing the invention

[0021] Preferred embodiments according to the present invention will be described in detail below with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings. Instead, based on the principle that the inventor may appropriately define the concepts of terms to best describe his invention, they should be interpreted in a meaning and concept consistent with the technical spirit of the present invention.

[0022] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention; thus, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application.

[0023] FIG. 1a is a plan view showing the state in which an electric winch trolley for dismantling a knife of a shredder knife replacement device according to one embodiment is connected to the main body of a shredder. FIG. 2a is a plan view showing the state in which an electric winch trolley for dismantling a knife of a shredder knife replacement device according to one embodiment rotates according to the knife position.

[0024] According to one embodiment, the shredder knife replacement device may include an electric winch trolley (100) for knife dismantling to separate a plurality of knives (12a, 12b) coupled to the shredder body (10) from the shredder body (10). The shredder body (10) may be installed in a designated shredder installation space. A pair of shafts (11a, 11b) may be installed on each side of the shredder body (10). A plurality of knives (12a, 12b) may be arranged at designated intervals around each of the pair of shafts (11a, 11b).

[0025] According to one embodiment, the electric winch trolley (100) for dismantling a knife may include a pair of clamps (110a, 110b), a pair of first chains (120a, 120b), a power means (130), and a pipe (140).

[0026] According to one embodiment, a pair of clamps (110a, 110b) can press each of the circumferences of a knife positioned at one end of a shaft (11a or 11b) among a plurality of knives (12a, 12b). For example, the pair of clamps (110a, 110b) can press each of the circumferences of a knife using a 'C'-shaped clamp form. In one embodiment, the pair of clamps (110a, 110b) can be positioned to correspond to the position of knives (12a) according to a first arrangement or knives (12b) according to a second arrangement among a pair of shafts (11a, 11b).

[0027] According to one embodiment, a pair of first chains (120a, 120b) can move a pair of clamps (110a, 110b) in a designated direction. For example, a pair of first chains (120a, 120b) can move a pair of clamps (110a, 110b) in the direction in which an external force is generated as an external force is generated by a power means (130). In one embodiment, a pair of first chains (120a, 120b) may have flexibility to correspond to a twisted angle when both ends of a knife positioned at one end of a shaft (11a or 11b) among a plurality of knives (12a, 12b) are twisted at a designated angle around the shaft (11a or 11b). For example, a pair of first chains (120a, 120b) can move the clamps (110a or 110b) to correspond to a position of the knife that is tilted at a certain angle in a direction perpendicular to the axial direction (+x-axis direction) of the shaft (11a or 11b) by using a material having a length and / or elasticity corresponding to a specified tension between the pair of clamps (110a, 110b) and the power means (130).

[0028] According to one embodiment, the power means (130) can generate an external force in a designated direction to pull a pair of first chains (120a, 120b). For example, the power means (130) can pull a pair of first chains (120a, 120b) and a pair of clamps (110a, 110b) in the direction of the external force generation by generating an external force in a direction corresponding to the axial direction of a shaft (11a or 11b) while connected to a pair of first chains (120a, 120b).

[0029] According to one embodiment, the pipe (140) may be fitted and fixed to the end of a shaft (11a or 11b) connected to a pair of clamps (110a, 100b) of a pair of shafts (11a, 11b). For example, the pipe (140) may be fitted and fixed around the circumference of one end of the shaft (11a or 11b) positioned at a location corresponding to a designated direction. When the pair of first chains (120a, 120b) and the pair of clamps (110a, 110b) are moved in response to an external force generated by a power means (130), the movement of the shaft (11a or 11b) may be reduced.

[0030] According to one embodiment, the electric winch moving trolley (100) for knife dismantling can move the position of the pair of clamps (110a, 110b) and the pair of first chains (120a, 120b) to correspond to the angle of misalignment when the alignment of the pair of clamps (110a, 110b) and the pair of first chains (120a, 120b) is misaligned with respect to the axial direction of the shaft (11a or 11b). For example, the electric winch moving trolley (100) for knife dismantling can rotate the assembly set and / or the power means (130) by a specified angle (e.g., 90 degrees) around a rotation axis (150) positioned between the assembly set including the pair of clamps (110a, 110b) and the pair of first chains (120a, 120b) and the power means (130).

[0031] FIG. 2a is a plan view showing a movable cart for pulling out the main body of a shredder knife replacement device according to one embodiment. FIG. 2b is a side view showing a movable cart for pulling out the main body of a shredder knife replacement device according to one embodiment.

[0032] According to one embodiment, according to one embodiment, the shredder knife replacement device may further include a movable cart (200) for withdrawing the main body (10) from the shredder installation space to the outside.

[0033] According to one embodiment, the movable trolley (200) for pulling out the main body may include a lug (210), a plurality of rollers (220), and a plurality of casters (230).

[0034] According to one embodiment, the lug (210) may have a specified size. For example, the lug (210) may be a rectangular frame shape having a specified size corresponding to the area of ​​the shredder body (10).

[0035] According to one embodiment, a plurality of rollers (220) may be arranged at designated intervals on the upper surface of the lug (210) so that the crusher body (10) can be positioned on the upper surface of the lug (210). For example, the plurality of rollers (220) may be divided into a plurality of roller sets and aligned in each of the first, second, and third regions of the lug (210). The first to third regions may be regions divided in a direction perpendicular to the direction in which the crusher body (10) is withdrawn (+x-axis direction) (+y-axis direction).

[0036] According to one embodiment, a plurality of casters (230) may be placed on the lower surface of the lug (210). For example, a plurality of casters (230) may be placed at designated intervals on the edge portion of the lower surface of the lug (210). When the crusher body (10) is placed on a plurality of rollers (220), the plurality of casters (230) can move the lug (210).

[0037] Figure 3 is an image showing the separation of a knife using an electric winch trolley for knife dismantling of a shredder knife replacement device according to one embodiment.

[0038] According to one embodiment, an electric winch trolley (300) for knife dismantling (e.g., electric winch trolley (100) for knife dismantling) can separate the knives (12a, 12b) of the shredder body (10) from the shafts (11a, 11b) at an actual work site as shown in FIG. 3. At this time, the number of workers may be a minimum number of workers (e.g., 2 people) that is less than the number of workers required to separate the knives (12a, 12b) by hand.

[0039] FIG. 4 is an image showing the main body being pulled out using a movable cart for pulling out the main body of a shredder knife replacement device according to one embodiment.

[0040] According to one embodiment, a mobile cart (400) for extracting the main body (e.g., a mobile cart (200) for extracting the main body) can extract the main body (10) of the shredder from the shredder installation space to the outside at an actual work site as shown in FIG. 4. At this time, the number of workers may be a minimum number of workers (e.g., 2 people) that is less than the number of workers required to extract the main body (10) by hand.

[0041] As described above, although the present invention has been explained by limited embodiments and drawings, the present invention is not limited thereto, and it is obvious that various modifications and variations are possible within the scope of the technical spirit of the present invention and the equivalent scope of the claims described below by those skilled in the art to which the present invention belongs.

Claims

Claim 1 A shredder knife replacement device comprises an electric winch trolley for dismantling knives for separating a plurality of knives coupled to a shredder body from the shredder body, wherein the electric winch trolley for dismantling knives comprises: a pair of clamps that press against each of the circumferences of a knife positioned at one end of the shaft among the plurality of knives surrounding the shaft of the shredder body; a pair of first chains extending from each of the pair of clamps; a power means connected to the pair of first chains and generating an external force to pull the pair of first chains in a designated direction corresponding to the axial direction of the shaft; and a pipe fitted and fixed to the circumference of one end portion positioned at a location corresponding to the designated direction among the two ends of the shaft, and reducing the movement of the shaft when the pair of first chains and the pair of clamps move according to the external force generated by the power means. A shredder knife replacement device comprising an assembly set including the pair of clamps and the pair of first chains and a rotating shaft disposed between the power means, wherein the rotating shaft rotates the assembly set to correspond to the angle of misalignment when the alignment of the pair of clamps and the pair of first chains is misaligned by a specified angle with respect to the axial direction of the shaft. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 delete Claim 7 delete

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