Openable and closable roller cutter assembly for crusher

Abstract

The roller cutter assembly capable of being opened and closed comprises a movable cutter roller set, a fixed cutter set and an opening and closing control part, the movable cutter roller set comprises a movable cutter roller shaft and a plurality of movable cutter holders, the movable cutter roller shaft is rotationally connected into an operation bin, the movable cutter holders are connected to the surface of the movable cutter roller shaft, and one end of each movable cutter holder is connected with a movable cutter block; the fixed cutter set comprises fixed cutter holders arranged on the two sides of the movable cutter roller shaft respectively and fixed cutter sawteeth connected to one ends of the fixed cutter holders, and the fixed cutter sawteeth are meshed with cutting edges of the movable cutter blocks. The opening and closing control part comprises a rotating plate and a driving part, the two ends of the rotating plate are a rotatable rotating end and a connecting end respectively, the side face of the connecting end is connected with any fixed cutter base, and the driving part is connected to the other side face of the connecting end and used for pulling the connecting end to move in the direction close to or away from the movable cutter roller shaft. By arranging the opening and closing control part, the fixed cutter holder and the screen on the side can be controlled to synchronously move in the direction close to or away from the movable cutter roller shaft, and then clamped materials can be automatically removed and can smoothly pass through the movable cutter roller shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of pulverizing equipment, in particular to an openable and closable roller cutter assembly for a pulverizer. Background Art

[0002] When using a horizontal crusher to crush iron filings, it is inevitable that large pieces of material that cannot be crushed will cause the crushing tool to get stuck. In this case, the large pieces of material need to be removed in time. For example, in the patent with the publication number CN204523130U and the name "High-efficiency roller crusher for automobile non-metallic waste", it is disclosed that "the body part is mainly composed of a frame, a working bottom plate fixed on the working horizontal surface formed by the frame, and a tool mounting plate, etc., and the tool assembly part is mainly composed of a knife roller and two rows of serrated knife plates located outside the knife roller and spaced apart from each other, one row of which is fixed on the above-mentioned tool mounting plate, and the other row is fixed on the edge of the above-mentioned feeding port". In this scheme, the two rows of serrated knife plates are fixed and cannot be moved. When the material is stuck, the equipment is usually stopped and the staff enters the working bin to take out the large pieces of material. This operation method not only affects the operation effect, but also brings certain safety risks to the staff. Utility Model Content

[0003] The purpose of the utility model is to provide an openable and closable roller cutter assembly for a pulverizer, which can solve the technical problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an openable and closable roller cutter assembly for a pulverizer, comprising: a moving cutter roller group, a fixed cutter group and an opening and closing control part, the moving cutter roller group comprising a moving cutter roller shaft rotatably connected to the pulverizer working chamber, and a plurality of moving cutter seats connected to the surface of the moving cutter roller shaft, one end of the moving cutter seat being connected to a moving cutter block; the fixed cutter group comprising fixed cutter seats respectively arranged on both sides of the moving cutter roller shaft and fixed cutter serrations connected to one end of the fixed cutter seats, the fixed cutter serrations being engaged with the blade of the moving cutter block; the opening and closing control part comprising a rotating plate and a driving member, the two ends of the rotating plate being a rotatable rotating end and a connecting end respectively, the side surface of the connecting end being connected to any of the fixed cutter seats, and the driving member being connected to the other side surface of the connecting end, and being used for pulling the connecting end to move in a direction close to or away from the moving cutter roller shaft.

[0005] In one embodiment, the opening and closing control unit further includes a rotating shaft fixedly connected to the rotating end, the rotating shaft is rotatably connected between vertical plates used to enclose the business warehouse, and the rotating shaft is used to provide support and rotation support for the rotating plate.

[0006] In one embodiment, the driving member includes a fixed square bracket and a driving cylinder, the corresponding sides of the square bracket and the connecting end are respectively fixed with supports, and the fixed end and the output end of the driving cylinder are respectively hinged to the two supports.

[0007] In one embodiment, the movable knife block is detachably connected to one end of the movable knife seat to facilitate replacement due to wear.

[0008] In one embodiment, the movable blade block is constructed as a rectangular block structure, and any corner of the rectangular block is a blade. When the blade at any corner is worn, the movable blade block can be rotated to continue to be used.

[0009] In one embodiment, the openable and closable roller knife assembly also includes a screen group arranged below the movable knife roller group, and the screen group includes two groups of screens connected to each other, one of which is fixedly connected to the bottom side of the connecting end and opens and closes synchronously with the fixed knife teeth on this side to facilitate the passage of stuck materials.

[0010] On the other hand, the utility model also provides a technical solution for a pulverizer, comprising the closable roller cutter assembly described in any of the above solutions.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the openable and closable roller cutter assembly for the crusher provided by the utility model can control the fixed cutter seat and the screen on one side to move synchronously toward or away from the movable cutter roller shaft by setting an opening and closing control part that can control the opening and closing of the fixed cutter seat and the screen on this side, thereby automatically clearing the stuck material and allowing it to pass smoothly, effectively improving the working efficiency and avoiding the safety hazards caused by the staff cleaning the stuck material. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the overall structure of an openable and closable roller cutter assembly for a pulverizer provided by an embodiment of the utility model;

[0013] Figure 2 A top view of an openable and closable roller cutter assembly for a pulverizer provided by an embodiment of the utility model;

[0014] Figure 3 for Figure 2 Cross-sectional view in the BB direction;

[0015] Figure 4 It is a partial structural schematic diagram of an embodiment of the utility model;

[0016] Figure 5 It is a schematic diagram of the structure of the rotating plate in the embodiment of the utility model.

[0017] The meaning of each number in the figure is:

[0018] 1. Moving knife roller group; 11. Moving knife roller shaft; 12. Moving knife seat; 13. Moving knife block; 2. Fixed knife group; 21. Fixed knife seat; 22. Fixed knife saw teeth; 3. Screen group; 31. First screen; 32. Second screen; 33. Screen mounting plate; 4. Opening and closing control unit; 41. Rotating plate; 411. Rotating end; 412. Connecting end; 42. Square bracket; 43. Driving cylinder; 44. Support; 45. Rotating shaft; 5. Vertical plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] See also Figure 1-Figure 4 The present embodiment discloses a closable roller cutter assembly for a pulverizer, comprising a rotatable movable roller cutter group 1, a fixed blade group 2 and a screen group 3. The movable roller cutter group 1 and the fixed blade group 2 cooperate to implement the pulverizing operation. Both are arranged in the working bin of the pulverizer. The screen group 3 is arranged below the movable roller cutter group 1 to screen the pulverized material.

[0022] Specifically, Figure 4 As shown, the movable knife roller group 1 includes a movable knife roller shaft 11, and a movable knife block 13 connected to the surface of the movable knife roller shaft 11 through a movable knife seat 12, wherein the movable knife roller shaft 11 is rotatably connected in the working chamber, and the surface of the movable knife roller shaft 11 is provided with a plurality of grooves for embedding the movable knife seat 12, the movable knife seat 12 is fixedly welded in the grooves, and the movable knife block 13 is detachably connected to one end of the movable knife seat 12 by a screw, so as to facilitate replacement due to wear.

[0023] The fixed blade assembly 2 includes fixed blade seats 21 respectively arranged on both sides of the movable blade roller shaft 11 and fixed blade serrations 22 connected to one end of the fixed blade seats 21, and the two are preferably connected in one piece to ensure the stable arrangement of the fixed blade serrations 22. In this embodiment, the fixed blade serrations 22 and the blades of the movable blade block 13 are engaged to play a crushing role. Correspondingly, the movable blade block 13 is preferably a rectangular block structure, and any corner of the rectangular block is a blade. When the blade of any corner is worn, it only needs to loosen the screw and rotate the angle of the movable blade block 13 to continue to use it.

[0024] It is understandable that the fixed blade seat 21 should have a length matching that of the movable blade roller shaft 11 so that the arranged fixed blade serrations 22 can respectively mesh with the fixed blade blocks.

[0025] In this embodiment, the closable roller cutter assembly further comprises an opening and closing control unit 4 connected to any fixed cutter seat 21, and the opening and closing control unit 4 is used to pull the fixed cutter seat 21 to flip and open. Specifically, the opening and closing control unit 4 comprises a rotating plate 41 arranged in an inclined manner, see Figure 5 The two ends of the rotating plate 41 are a rotating end 411 and a connecting end 412, respectively. The rotating end 411 is positioned upward, and the connecting end 412 is positioned downward and faces the movable knife roller shaft 11. The opening and closing control unit 4 further includes a rotating shaft 45 fixedly connected to the rotating end 411. The rotating shaft 45 is rotatably connected between the vertical plates 5 used to enclose the working bin through a bearing, and is used to provide support and rotation support for the rotating plate 41. The rotating end 411 is constructed as an arc structure that matches the rotating shaft 45. The rotating end 411 and the rotating shaft 45 can be connected by bolts, or by a fixed connection method such as welding. The connecting end 412 is used to connect the corresponding fixed knife seat 21, and the corresponding fixed knife seat 21 is fixedly connected to the side of the connecting end 412 of the rotating plate 41 by bolts.

[0026] See also Figure 3 , the opening and closing control unit 4 also includes a driving member for pulling the rotating plate 41 to perform opening and closing movements, and the driving member is arranged on the other side of the connecting end 412 of the rotating plate 41. In this embodiment, the driving member includes a square bracket 42 and a driving cylinder 43. The square bracket 42 is used to connect the driving cylinder 43, and a simple structure such as square steel can be used. The square bracket 42 is fixedly connected between the vertical plates 5 used to enclose the working warehouse, and is parallel to the rotating shaft 45. The corresponding sides of the square bracket 42 and the connecting end 412 of the rotating plate 41 are respectively fixed with supports 44, and the fixed end and the output end of the driving cylinder 43 are respectively hinged to the two supports 44. Furthermore, the connecting end 412 of the rotating plate 41 can be pulled to move in a direction close to or away from the movable knife roller shaft 11 by the extension and contraction of the driving cylinder 43. In other embodiments not shown, the driving cylinder 43 can also be replaced by a driving structure such as a cylinder or a linear electric cylinder.

[0027] In the initial operating state, the piston rod of the driving cylinder 43 is in an extended state. At this time, the connecting end 412 of the rotating plate 41 and the fixed knife serration 22 are both facing and close to the movable knife roller shaft 11; when material jamming occurs, the piston rod of the driving cylinder 43 retracts, driving the connecting end 412 of the rotating plate 41 and the fixed knife serration 22 to flip in a direction away from the movable knife roller shaft 11. At this time, a larger gap appears between the fixed knife serration 22 and the movable knife roller shaft 11, allowing the stuck material to pass through, and the stuck material passes through.

[0028] The fixed knife seat 21 on the other side can be connected to the working chamber plate on the corresponding side. The connection structure belongs to the prior art and will not be described in detail here.

[0029] It can be understood that the opening and closing control part 4 should correspond to one side of the material guiding or pushing mechanism of the pulverizer, so that the large pieces of material first enter the position of the fixed knife teeth 22 on this side.

[0030] like Figure 3 As shown, in this embodiment, the screen group 3 includes a first screen 31 and a second screen 32 connected to each other. The first screen 31 is fixedly connected to the bottom side of the connection end 412 of the rotating plate 41 through a screen mounting plate 33. When the fixed knife saw teeth 22 move, the first screen 31 on this side moves synchronously, so that large pieces of material pass through the screen at the same time. The upper end of the second screen 32 is connected between the two vertical plates 5 through a mounting column. The connection method can be fixed connection or rotating connection, which can be selected according to actual needs.

[0031] The closable roller cutter assembly for a pulverizer provided in this embodiment can automatically clear stuck materials and allow them to pass smoothly by providing an opening and closing control unit 4 that can control the opening and closing of a fixed cutter seat 21 and a screen on one side, thereby effectively improving operating efficiency and avoiding safety hazards caused by workers cleaning stuck materials.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A closable roller cutter assembly for a pulverizer, characterized in that: include: The movable blade roller assembly (1) comprises a movable blade roller shaft (11) rotatably connected to the working chamber of the pulverizer, and a plurality of movable blade seats (12) connected to the surface of the movable blade roller shaft (11), wherein one end of the movable blade seat (12) is connected to a movable blade block (13); The fixed knife group (2) comprises fixed knife seats (21) respectively arranged on both sides of the movable knife roller shaft (11) and fixed knife teeth (22) connected to one end of the fixed knife seats (21), wherein the fixed knife teeth (22) are meshed with the blade of the movable knife block (13); The opening and closing control part (4) comprises a rotating plate (41) and a driving member, wherein the two ends of the rotating plate (41) are respectively a rotatable rotating end (411) and a connecting end (412), the side surface of the connecting end (412) is connected to any one of the fixed knife seats (21), and the driving member is connected to the other side surface of the connecting end (412) and is used for pulling the connecting end (412) to move in a direction close to or away from the movable knife roller shaft (11).

2. The closable roller cutter assembly for a pulverizer according to claim 1, characterized in that: The opening and closing control part (4) further comprises a rotating shaft (45) fixedly connected to the rotating end (411), and the rotating shaft (45) is rotatably connected between the vertical plates (5) used to enclose the business warehouse.

3. The closable roller cutter assembly for a pulverizer according to claim 1, characterized in that: The driving member comprises a fixedly arranged square bracket (42) and a driving oil cylinder (43); corresponding sides of the square bracket (42) and the connecting end (412) are respectively fixedly provided with supports (44); the fixed end and the output end of the driving oil cylinder (43) are respectively hinged to the two supports (44).

4. The closable roller cutter assembly for a pulverizer according to claim 1, characterized in that: The movable knife block (13) is detachably connected to one end of the movable knife seat (12).

5. The closable roller cutter assembly for a pulverizer according to claim 4, characterized in that: The movable blade block (13) is constructed as a rectangular block structure.

6. The closable roller cutter assembly for a pulverizer according to claim 1, characterized in that: The closable roller blade assembly further comprises a screen group (3) arranged below the movable blade roller group (1), wherein the screen group (3) comprises two groups of screens connected to each other, one of which is fixedly connected to the bottom side of the connecting end (412).

7. A pulverizer, characterized in that: The invention comprises the closable roller cutter assembly as described in any one of claims 1 to 6.

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