Side comb plate mechanism of crusher and crusher

Abstract

The present invention provides a side comb plate mechanism of a crusher and a crusher, wherein the side comb plate mechanism comprises: a mounting portion, which is located on the inner wall of a crushing box of the crusher; the mounting portion has an inner wall adapted to the trajectory of the rotary operation of the cutter of the crusher, so that when the cutter of the crusher rotates, the inner wall of the mounting portion blocks the material from entering the corner of the crushing box; a plurality of comb plates are sequentially arranged on the inner wall of the mounting portion, and the gaps between the comb plates are suitable for accommodating the rotary operation of the cutter of the crusher. The side comb plate mechanism of the crusher and the crusher block the material from entering the corner of the crushing box through the inner wall of the side comb plate, effectively solving the problems of material accumulation and poor material discharge.

Description

Technical Field

[0001] The invention belongs to the technical field of crushers, and in particular relates to a side comb plate mechanism of a crusher and a crusher. Background Art

[0002] At present, the pretreatment of solid waste is usually completed by crushers, such as using rotary shear crushers to crush solid waste. Rotary shear crushers are usually composed of a crushing box, a cutter shaft, a cutter, and a drive mechanism. The material entering the crushing box of the crusher is grabbed by the cutter on the cutter shaft and enters between adjacent cutters. The material is sheared by the relative rotation between the cutters. The sheared material is discharged through the lower part of the crusher as the rotor continues to rotate.

[0003] When the crusher is running, the material is cut and torn by the crusher's cutter and carried to the bottom of the crusher by the cutter teeth. In order to reduce the material being brought back to the feed port again, the crusher is generally equipped with a comb plate to assist in cleaning the cutter and unloading. However, in the prior art, the comb plates are sequentially arranged on the inner wall of the crushing box of the crusher, and the cutter is located in the gap between adjacent comb plates. Since the cutter is rotating, its running trajectory is two intersecting circles, and the inner wall of the crushing box is a vertical plane. Therefore, the area passed by the cutter during rotation cannot cover the entire rectangular space inside the crushing box. The uncovered area will gradually accumulate material during the crushing process, mainly in the upper and lower areas of the comb plates. Figure 8 The figure shows an existing crusher, whose cavity wall of the crushing box is vertical. Because the rotation trajectory of the cutter cannot occupy the entire space between adjacent comb plates, there will be a gap at the corner of the inner wall of the crushing box (A in the figure), which is the space for accumulated materials. At the same time, due to the high rotation speed of the cutter, the accumulated materials cannot be automatically cleaned up by forward and reverse rotation, which is equivalent to storing some waste materials in the crusher for a long time. In addition, when processing some sticky and flexible materials, the problem will be more serious. This is because the flexible materials are piled up more tightly due to the extrusion of the cutter, and the repeated compression and rebound of the accumulated materials will consume part of the crushing torque and affect the effective working capacity of the equipment. In some cases, the materials that stick after the shutdown will stick to the cutter, resulting in the inability to start the machine again. Some materials will deteriorate and harden over time, and the cutter edge or tip may be damaged during the operation of the crusher. Summary of the invention

[0004] The technical problem solved by the present invention is to provide a side comb plate mechanism of a crusher and a crusher, which blocks materials from entering the corner of a crushing box through the inner wall of the side comb plate, thereby effectively solving the problems of material accumulation and poor discharge.

[0005] In order to solve the above problems, one aspect of the present invention provides a side comb plate mechanism of a crusher, comprising:

[0006] The mounting part is located on the inner wall of the crushing box of the crusher; the mounting part has an inner wall adapted to the trajectory of the rotary operation of the cutter of the crusher, so that when the cutter of the crusher rotates, the inner wall of the mounting part blocks the material from entering the corner of the crushing box;

[0007] A plurality of comb plates are sequentially arranged on the inner wall of the mounting portion, and the gaps between the comb plates are suitable for accommodating the rotary operation of the cutter of the crusher.

[0008] The inner wall of the mounting portion refers to the wall surface on the side close to the cutter shaft of the crusher.

[0009] Preferably, the cross section of the inner wall of the mounting portion is in the shape of an arc or a plurality of linear segments close to an arc; the center of the arc is located on the side where the comb plate is located.

[0010] Compared with the existing vertical wall, the inner wall of the arc-shaped or multi-segment linear cross-section close to the arc shape can be closer to the trajectory of the tool head when the tool rotates, so that the place where the crushing box can be filled with materials is basically covered by the rotating trajectory of the tool head, and there is no dead corner for accumulated materials, thus avoiding material accumulation and poor discharge.

[0011] The cross section refers to the cross section of the axis perpendicular to the cutter shaft. The arc shape here can be a concentric circle of the rotation trajectory of the crusher cutter head or not, as long as the cutter does not contact the inner wall surface during rotation. A polyline is a continuous line composed of several line segments or arcs. A polyline shape close to an arc shape refers to a polyline shape that can be fitted into an arc shape. As a preferred embodiment, the angle between any two connected line segments in the polyline is an obtuse angle, which can better prevent material accumulation.

[0012] Preferably, the circle where the arc shape is located is concentric with the rotation track of the head of the cutter of the crusher, and the radius of the circle where the arc shape is located is greater than the radius of the rotation track of the head of the cutter of the crusher;

[0013] The circle where the arc shape approached by the multi-segment line shape is located is concentric with the rotation trajectory of the head of the crusher tool, and the radius of the circle where the arc shape approached by the multi-segment line shape is located is larger than the radius of the rotation trajectory of the head of the crusher tool.

[0014] The inner wall of the installation part is selected to be a circle concentric with the tool rotation trajectory, so that the inner wall can be parallel to the tool trajectory, the cavity wall of the crushed material is more closely covered by the tool running trajectory, and there is no redundant space outside the trajectory, which is better to prevent material accumulation.

[0015] Preferably, the radius of the circle in which the arc-shaped shape lies is slightly larger than the radius of the rotation trajectory of the head of the crusher cutter;

[0016] The radius of the circle where the arc shape approached by the multiple linear segments lies is slightly larger than the radius of the rotation track of the head of the crusher cutter.

[0017] Preferably, the mounting portion is formed integrally with a crushing box of the crusher.

[0018] Preferably, the mounting portion comprises:

[0019] A wall plate, wherein the cross section of the wall plate is an arc shape or a multi-segment linear shape close to an arc shape; a plurality of the comb plates are arranged on the inner wall of the wall plate;

[0020] An upper cover plate is arranged at the top of the wall plate, the top of the comb plate is connected to the upper cover plate, and a gap suitable for accommodating the rotary operation of the cutter of the crusher is provided on the upper cover plate;

[0021] The lower cover plate is arranged at the bottom end of the wall plate, the bottom end of the comb plate is connected to the lower cover plate, and the lower cover plate is provided with a gap suitable for accommodating the rotary operation of the cutter of the crusher.

[0022] The wall plate constitutes the inner wall close to the cutter shaft, that is, it acts as the crushing chamber wall during operation; the upper and lower cover plates close the upper and lower spaces of the wall plate and comb plate, and there are no redundant grooves for accumulating materials.

[0023] In addition, the mounting portion may not be a plate-like structure, but may be a mounting block, and the cross section of the inner wall of the mounting block close to the knife shaft is an arc shape or a multi-segment linear shape close to an arc shape.

[0024] Preferably, the comb plate is connected to the upper cover plate and the lower cover plate by bolts.

[0025] Preferably, the mounting portion further comprises:

[0026] A mounting plate is arranged on a side of the wall plate away from the comb plate, and the mounting plate is suitable for being mounted on the inner wall of the crushing box of the crusher.

[0027] Preferably, there is a preset gap between the cutter of the crusher and the adjacent comb plate, so that the cutter of the crusher forms a shearing structure with the mounting portion or the adjacent comb plate.

[0028] Another aspect of the present invention provides a crusher, comprising:

[0029] Crushing box,

[0030] A cutter shaft is arranged in the crushing box;

[0031] A plurality of cutting tools are arranged on the cutting shaft;

[0032] A driving unit, used for driving the knife shaft to rotate;

[0033] The side comb plate mechanism of the above-mentioned crusher is arranged on the inner wall of the side wall of the crushing box, and the cutter is located in the gap between adjacent comb plates.

[0034] Among them, the crusher can be a rotary shearing crusher; there are at least two parallel cutter shafts; the cutter can be a single-headed cutter that rotates in one direction, or a double-headed cutter that rotates forward and reverse; the driving part provides rotary power, which can be a motor reducer, or a hydraulic motor directly driven, or a motor reducer in combination; the crushing box and the side comb plate mechanism can be manufactured separately and then connected together by bolts or other means, or the crushing box and the side comb plate mechanism can be directly integrated.

[0035] During operation, the rotation of the crusher's cutter shaft drives the cutter to bring the material into the crushing box, where it is crushed through a combination of squeezing, shearing and tearing. The inner wall of the mounting part of the side comb plate mechanism constitutes the wall of the crushing chamber, blocking the material from entering the corners of the crushing box that the cutter's rotation trajectory cannot reach, thereby preventing material accumulation. The side comb plate cleans the material on the cutter to prevent excess material from being brought back to the crushing surface for secondary crushing, and at the same time has a certain auxiliary crushing function.

[0036] Preferably, the mounting portion comprises:

[0037] A wall plate, wherein the cross section of the wall plate is an arc shape or a multi-segment linear shape close to an arc shape; a plurality of the comb plates are arranged on the inner wall of the wall plate;

[0038] An upper cover plate is arranged at the top of the wall plate, one end of the upper cover plate is connected to the top of the comb plate, and the other end is connected to the inner wall of the crushing box; a gap suitable for accommodating the rotary operation of the cutter of the crusher is provided on the upper cover plate; the upper cover plate covers the space between the wall plate and the inner wall of the crushing box;

[0039] A lower cover plate is arranged at the bottom end of the wall plate, one end of the lower cover plate is connected to the bottom end of the comb plate, and the other end is connected to the inner wall of the crushing box; a gap suitable for accommodating the rotary operation of the cutter of the crusher is provided on the lower cover plate; the lower cover plate covers the space between the wall plate and the inner wall of the crushing box.

[0040] Preferably, the surface of the cutter and / or the surface of the comb plate and / or the inner wall of the wall plate and / or the inner wall of the upper cover plate and / or the inner wall of the lower cover plate is provided with a non-stick material coating.

[0041] Further, the non-stick material coating may be a polytetrafluoroethylene coating.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] 1. The side comb plate mechanism and the crusher of the present invention, during operation, the cutter shaft of the crusher rotates to drive the cutter to bring the material into the crushing box, and the material is crushed by the combined effects of extrusion, shearing, tearing, etc. The inner wall of the mounting portion of the side comb plate mechanism constitutes the cavity wall of the crushing cavity, blocking the material from entering the corner of the crushing box that the cutter rotation trajectory cannot reach, and preventing material accumulation; and the side comb plate cleans the material on the cutter to prevent excess material from being brought back to the crushing surface for secondary crushing, and at the same time has a certain auxiliary crushing function;

[0044] 2. The side comb plate mechanism and crusher of the crusher of the present invention further configure the inner wall of the mounting portion of the side comb plate mechanism to be an arc-shaped or multi-segment linear cross-section inner wall close to an arc-shaped inner wall, which can be closer to the track of the cutter head when the cutter rotates than the existing vertical wall, so that the part of the crushing box that can be filled with materials is basically covered by the rotating track of the cutter head, and there is no dead corner where materials accumulate, thereby avoiding material accumulation and poor discharge;

[0045] 3. The side comb plate mechanism of the crusher of the present invention further sets the inner wall of the mounting part to be a circle concentric with the rotation track of the cutter, so that the inner wall and the cutter track are parallel, the cavity wall of the crushed material is more closely covered by the running track of the cutter, and there is no redundant space outside the track, which has a better effect of preventing material accumulation;

[0046] 4. The side comb plate mechanism of the crusher of the present invention is further composed of a wall plate, an upper cover plate, a lower cover plate, a mounting plate, and a comb plate. The wall plate constitutes the inner wall close to the cutter shaft, that is, it serves as the crushing chamber wall during operation; the upper and lower cover plates close the upper and lower spaces of the wall plate and the comb plate, and there are no excess grooves for accumulating materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a cross-sectional view of the crusher described in Example 1 of the present invention;

[0048] Figure 2 is a cross-sectional perspective view of the crusher according to Embodiment 1 of the present invention;

[0049] Figure 3 is a schematic structural diagram of a crusher according to Embodiment 1 of the present invention;

[0050] Figure 4 is a structural schematic diagram of the side comb plate mechanism in the crusher according to Example 1 of the present invention;

[0051] Figure 5 is a cross-sectional view of the side comb plate mechanism of the crusher according to Example 2 of the present invention;

[0052] Figure 6 is a cross-sectional view of another embodiment of a wall plate in the side combing plate mechanism described in Example 2 of the present invention;

[0053] Figure 7 is a cross-sectional view of another embodiment of a wall plate in the side combing plate mechanism described in Example 2 of the present invention;

[0054] Figure 8 It is a structural schematic diagram of a crusher in the prior art.

[0055] Among them: 1-crushing box; 2-knife shaft; 3-knife; 4-driving part; 5-side combing plate mechanism; 51-wall plate; 52-upper cover plate; 53-lower cover plate; 54-mounting plate; 55-combing plate. DETAILED DESCRIPTION

[0056] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solution of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] Example 1

[0058] like Figure 1 , 2 As shown in , 3, the crusher described in this embodiment includes:

[0059] Crushing box 1,

[0060] A cutter shaft 2 is arranged in the crushing box 1;

[0061] A plurality of cutting tools 3 are arranged on the cutting shaft 2;

[0062] A driving unit 4, used for driving the knife shaft 2 to rotate;

[0063] The side comb plate mechanism 5 of the crusher is arranged on the inner wall of the side wall of the crushing box 1, and comprises a mounting portion connected to the inner wall of the crushing box and a plurality of comb plates sequentially arranged on the inner wall of the mounting portion;

[0064] like Figure 4As shown, the mounting portion includes: a wall plate 51, an upper cover plate 52, a lower cover plate 53 and a mounting plate 54, the inner wall of the wall plate 51 is adapted to the trajectory of the rotation of the cutter 3 of the crusher, there is a predetermined gap between the inner wall of the wall plate 51 and the trajectory of the cutter 3, and the predetermined gap is constant along the trajectory of the rotation of the cutter 3, specifically, the cross section of the wall plate 51 is an arc shape, the center of the arc shape is located on the side close to the cutter shaft, the circle where the arc shape is located is a concentric circle with the rotation trajectory of the head of the crusher cutter, and the radius of the circle where the arc shape is located is slightly larger than the radius of the rotation trajectory of the head of the crusher cutter; the upper cover The plate 52 is arranged at the top end of the wall plate 51, one end of the upper cover plate is connected to the top end of the comb plate, and the other end is connected to the inner wall of the crushing box, and the upper cover plate covers the space between the wall plate and the inner wall of the crushing box; the lower cover plate 53 is arranged at the bottom end of the wall plate 51, one end of the lower cover plate is connected to the bottom end of the comb plate, and the other end is connected to the inner wall of the crushing box, and the lower cover plate covers the space between the wall plate and the inner wall of the crushing box; the mounting plate 54 is arranged on the side of the wall plate 51 away from the knife shaft, and is installed on the inner wall of the crushing box of the crusher through the mounting plate;

[0065] A plurality of comb plates 55 are arranged on the inner wall of the wall plate 51, the top end of the comb plate 55 is connected to the upper cover plate 52 by bolts, and the bottom end of the comb plate 55 is connected to the lower cover plate 53 by bolts, and the gap between the comb plates 55 is suitable for accommodating the rotary operation of the cutter of the crusher; the upper cover plate is provided with a gap suitable for accommodating the rotary operation of the cutter of the crusher; the lower cover plate is provided with a gap suitable for accommodating the rotary operation of the cutter of the crusher; the cutter 3 is located in the gap between adjacent comb plates.

[0066] The cutter shaft 2 may be a double cutter shaft arranged side by side, and a plurality of cutters 3 are sequentially mounted on the cutter shaft 2, and the cutters 3 on each cutter shaft 2 are arranged alternately with the cutters 3 on another cutter shaft 2, that is, the cutters 3 on the two cutter shafts are arranged crosswise, and when the solid waste enters the crusher, the cutters 3 shear and crush the solid waste. The surfaces of the cutters, the surfaces of the comb plates, the inner walls of the wall plates, the inner walls of the upper cover plates, and the inner walls of the lower cover plates are provided with a polytetrafluoroethylene coating.

[0067] In the crusher described in this embodiment, during operation, the drive unit drives the cutter shaft to rotate, drives the cutter, brings the material into the crushing box, and crushes the material through the combined effects of extrusion, shearing, tearing, etc. The wall plate of the side combing plate mechanism constitutes the arc-shaped cavity wall of the crushing chamber, which is parallel to the tool trajectory, and the inner diameter is slightly larger than the tool rotation diameter, and only an appropriate gap is reserved so that there is no redundant space outside the tool trajectory for material accumulation; the upper and lower cover plates cover the space between the wall plate and the inner wall of the crushing box as a whole, shielding the redundant grooves between the combing plate and the wall plate to prevent material accumulation; and the side combing plate cleans the material between the cutters to prevent excess material from being brought back to the crushing surface for secondary crushing, and at the same time has a certain auxiliary crushing function; the polytetrafluoroethylene coating on the surface of each structure can prevent sticky materials from adhering and assist in material discharge. Therefore, the crusher can effectively solve the problems of material accumulation and poor material discharge.

[0068] Example 2

[0069] This embodiment provides another implementation of the side combing plate mechanism.

[0070] The remaining structure of the side comb plate mechanism of the crusher is the same as that of Example 1, except that:

[0071] The cross section of the wall panel 51 is a multi-segment linear shape close to an arc shape, the center of the arc shape is located on the side where the comb plate is located, the circle where the arc shape is located is concentric with the rotation trajectory of the head of the crusher tool, and the radius of the circle where the arc shape is located is slightly larger than the radius of the rotation trajectory of the head of the crusher tool.

[0072] Specifically, the multi-segment line shape can be Figure 5 The three line segments shown are connected; Figure 6 The 4 line segments shown are connected; Figure 7 The five line segments shown are connected, etc. Specifically, the multi-segment line shape can be formed by continuous welding of multiple straight plates, or it can be directly realized by using a bent plate.

[0073] The side comb plate mechanism of this embodiment has a wall plate that is arranged as a multi-segment linear cross-section that is close to a circular arc. This can also reduce the redundant space outside the tool trajectory in the crushing box, reduce or avoid material accumulation, and solve the problems of material accumulation and poor discharge in the crusher. Compared with the arc cross-section of Example 1, the multi-segment linear cross-section has a slightly lower effect in reducing material accumulation, but its structure is simpler to manufacture.

[0074] Example 3

[0075] In this embodiment, the cutter 3 is a bidirectional cutter, and there is a preset gap between the cutter 3 and the adjacent comb plate 55, so that the cutter 3 of the crusher and the mounting part or the adjacent comb plate 55 form a shearing structure, that is, the cutter 3 is a movable cutter, and the comb plate 55 or the upper cover plate 52 and the lower cover plate 53 of the mounting part are stationary fixed cutters. Specifically, the top edge of the comb plate 55 or the side edges of the upper cover plate 52 and the lower cover plate 53 form a movable and fixed cutter shearing structure, which increases auxiliary crushing for the crusher and improves the crushing capacity of the crusher.

[0076] Example 4

[0077] In this embodiment, the mounting portion is formed integrally with the crushing box of the crusher. The mounting portion can be integrally formed with the crushing box. During manufacturing, the mounting portion and the crusher can be cast. Specifically, the wall panel and the crushing box can be integrated to further simplify the structure.

[0078] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A side comb plate mechanism of a crusher, characterized in that: include: The mounting portion is located on the inner wall of the crushing box of the crusher; the mounting portion has an inner wall adapted to the trajectory of the rotary operation of the cutter of the crusher, so that when the cutter of the crusher rotates, the inner wall of the mounting portion blocks the material from entering the corner of the crushing box; the cross section of the inner wall of the mounting portion is an arc shape or a multi-segment linear shape close to an arc shape; the center of the arc shape is located on the side where the comb plate is located; A plurality of comb plates are sequentially arranged on the inner wall of the mounting portion, and the gaps between the comb plates are suitable for accommodating the rotary operation of the cutter of the crusher.

2. The side comb plate mechanism of the crusher according to claim 1, characterized in that: The circle where the arc is located is a concentric circle with the rotation track of the head of the crusher cutter, and the radius of the circle where the arc is located is greater than the radius of the rotation track of the head of the crusher cutter; The circle where the arc shape approached by the multi-segment line shape is located is concentric with the rotation trajectory of the head of the crusher tool, and the radius of the circle where the arc shape approached by the multi-segment line shape is located is larger than the radius of the rotation trajectory of the head of the crusher tool.

3. The side comb plate mechanism of the crusher according to claim 1, characterized in that: The mounting portion is formed integrally with a crushing box of the crusher.

4. The side comb plate mechanism of the crusher according to claim 1, characterized in that: The mounting portion comprises: A wall plate, wherein the cross section of the wall plate is an arc shape or a multi-segment linear shape close to an arc shape; a plurality of the comb plates are arranged on the inner wall of the wall plate; An upper cover plate is arranged at the top of the wall plate, the top of the comb plate is connected to the upper cover plate, and a gap suitable for accommodating the rotary operation of the cutter of the crusher is provided on the upper cover plate; The lower cover plate is arranged at the bottom end of the wall plate, the bottom end of the comb plate is connected to the lower cover plate, and the lower cover plate is provided with a gap suitable for accommodating the rotary operation of the cutter of the crusher.

5. The side comb plate mechanism of the crusher according to claim 4, characterized in that: The comb plate is connected to the upper cover plate and the lower cover plate by bolts.

6. The side comb plate mechanism of the crusher according to claim 4, characterized in that: The installation part also includes: A mounting plate is arranged on a side of the wall plate away from the comb plate, and the mounting plate is suitable for being mounted on the inner wall of the crushing box of the crusher.

7. The side comb plate mechanism of the crusher according to claim 1, characterized in that: There is a preset gap between the cutter of the crusher and the adjacent comb plate, so that the cutter of the crusher and the mounting portion or the adjacent comb plate form a shearing structure.

8. A crusher, characterized in that: include: Crushing box, A cutter shaft is arranged in the crushing box; A plurality of cutting tools are arranged on the cutting shaft; A driving unit, used for driving the rotation of the knife shaft; The side comb plate mechanism of the crusher as described in any one of claims 1 to 7 is arranged on the inner wall of the side wall of the crushing box, and the cutter is located in the gap between adjacent comb plates.

9. The crusher according to claim 8, characterized in that The mounting portion comprises: An upper cover plate is arranged at the top of the wall plate, one end of the upper cover plate is connected to the top of the comb plate, and the other end is connected to the inner wall of the crushing box; a gap suitable for accommodating the rotary operation of the cutter of the crusher is provided on the upper cover plate; the upper cover plate covers the space between the wall plate and the inner wall of the crushing box; A lower cover plate is arranged at the bottom end of the wall plate, one end of the lower cover plate is connected to the bottom end of the comb plate, and the other end is connected to the inner wall of the crushing box; a gap suitable for accommodating the rotary operation of the cutter of the crusher is provided on the lower cover plate; the lower cover plate covers the space between the wall plate and the inner wall of the crushing box; The wall plate has a cross section that is an arc shape or a multi-segment linear shape close to an arc shape; and a plurality of comb plates are arranged on the inner wall of the wall plate.

10. The crusher according to claim 9, characterized in that: The surface of the cutter and / or the surface of the comb plate and / or the inner wall of the wall plate and / or the inner wall of the upper cover plate and / or the inner wall of the lower cover plate is provided with a non-stick material coating.

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