Lining plate for crusher and screening and crushing integrated equipment thereof

Abstract

The utility model relates to the technical field of machining, and particularly discloses a lining plate for a crusher and screening and crushing integrated equipment of the lining plate. The crusher includes a crushing chamber and a series of liners that overlie the crushing chamber. The crushing cavity extends inwards from the feeding port, the lining plate is arranged along the top of the crushing cavity, and three impact parts are arranged in the feeding port. The impact parts are provided with lining plates and can move on the top wall of the crusher. The section of the lining plate is in an isosceles trapezoid shape, and a lining plate gap with taper is formed. And a lining plate is also arranged on the side wall of the crushing cavity and consists of a lining plate main body and a mounting sleeve. The mounting sleeve is provided with a tapered outer ring, a mounting hole and a fixing spigot. The first counterattack part comprises a movable layer, a buffer layer and a lining plate layer, wherein the movable layer is provided with three movable plates. And the lining plate is fixed on the movable layer through the mounting holes. The design optimizes the structure of the crusher, and improves the performance and durability of the crusher.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing devices, in particular to a lining plate for a crusher and screening and crushing integrated equipment thereof. Background Art

[0002] The integrated crushing and screening machine is a device that combines the two processes of crushing and screening. It has the dual functions of crushing and screening, and can coarsely crush and coarsely screen the raw materials, thereby achieving the purpose of one-time processing and forming.

[0003] A liner for a crusher or screening equipment is mainly used on the inside of the crusher or screening equipment body to protect the equipment body from wear and collision of materials. The liner is wear-resistant and easy to replace. Conventional liners are usually made of high manganese steel, which has the characteristics of wear resistance and high hardness, but at the same time, high manganese steel is not easy to process and has poor welding performance. As a result, when fixing the high manganese steel liner, it can usually only be fixed to the equipment body by complex methods such as pulling the inclined surfaces against each other. Since the liner is usually manufactured by casting, the casting accuracy is poor, and sufficient installation gap must be left between two adjacent liner plates for smooth installation, which results in uneven gaps between all the liner plates inside the body. During the use of the equipment, a lot of materials will usually be stuck in the gaps of the liner, which will affect the crushing effect of the material after a period of use.

[0004] The patent "Crusher Liner" (publication number CN219631394U, hereinafter referred to as prior art 1) discloses a dynamic liner for a crusher. The dynamic liner is detachably connected to the main shaft of the cone crusher, and a pressure head is provided on the top. The pressure head is connected to the main shaft through a second long bolt. The upper part of the pressure head is hemispherical, and the lower part is truncated cone-shaped. The outer edge of the bottom fits with the top outer edges of the four bushing plates; four bushing plates are connected to the outer wall of the dynamic liner, and two adjacent bushing plates fit tightly. The convex surface of the bushing plate is provided with a plurality of truncated cone-shaped crushing protrusions to reduce the contact between the material and the bushing plate and extend the service life; the outer wall of the dynamic liner is provided with three groups of positioning slots arranged in a circular array, which are used to fix the position of the bushing plate for easy replacement. The connecting groove is connected to the positioning slot, and the bushing plate is fixed to the dynamic liner by the first long bolt; the liner of the prior art 1 is used in the cone crusher, which is only convenient to replace, and cannot better protect the machine from the impact of the crusher, and it is easy to get the material stuck; and the liner in the prior art 1 cannot disperse the impact force during the crushing process, so as to better protect the machine. Utility Model Content

[0005] In view of this, an embodiment of the utility model provides a liner for a crusher and an integrated screening and crushing device thereof, so as to solve the problems in the prior art that the liner is inconvenient to replace and easily jams the material, resulting in low crushing efficiency.

[0006] In the first aspect, an embodiment of the utility model provides a liner for a crusher, comprising a liner body and a mounting sleeve; the mounting sleeve is arranged in a truncated cone shape and the outer surface is provided with a certain inclination, and the inner wall of the mounting sleeve is arranged as a mounting hole; the mounting sleeve comprises a large end and a small end; the mounting sleeve is provided with a fixed stop on the side close to the small end; the fixed stop is arranged in a circular ring shape and is fixed on the outer surface of the side close to the small end; the cross-section of the liner body is arranged in an isosceles trapezoid; a preset interval is provided when the liner plates are installed in pairs; a liner gap is formed between the liner plates by the interval set when the liner plates are installed in pairs; the liner gap is formed into a "U"-shaped or "V"-shaped liner gap by the adjacent two sides of the two liner plates.

[0007] In the second aspect, a screening and crushing integrated device is provided, comprising a liner for a crusher as described above; the crusher comprises a crushing chamber and a plurality of liner plates covering the crushing chamber; the part of the crusher from the feed port to the inside is the crushing chamber; the liner plate is arranged along the top of the crushing chamber toward the discharge port; a first counterattack part, a second counterattack part and a third counterattack part are arranged in the crushing chamber; the first counterattack part, the second counterattack part and the third counterattack part are arranged from the feed port of the crusher to the discharge port; the first counterattack part, the second counterattack part and the third counterattack part are all arranged on the top wall of the crusher and movably assembled therewith; a plurality of liner plates evenly distributed are arranged on the counterattack surfaces of the first counterattack part, the second counterattack part and the third counterattack part; the liner plate is assembled by a side with a larger area in conjunction with the counterattack surface.

[0008] Preferably, lining plates are also provided on the side walls on both sides of the crushing chamber of the crusher.

[0009] Preferably, the first counterattack part includes a movable layer, a buffer layer and a lining layer; the movable layer includes three movable plates, and the three movable plates are arranged on the back of the buffer layer; the lining layer is arranged on the front of the buffer layer.

[0010] Preferably, the lining plate is fixed on the movable layer by passing through the buffer layer through a mounting hole provided in the fixed stop.

[0011] Preferably, only the buffer layer and the lining layer are provided on the side walls on both sides of the crushing chamber of the crusher; the lining is fixed to the side wall of the crusher by passing through the buffer layer through the mounting hole provided in the fixed stop.

[0012] Preferably, a connecting mechanism is provided at one end of the first impact part, and the connecting mechanism rotatably connects one end of the first impact part to the side wall of the crusher; a lifting mechanism is provided at the other end of the first impact part; the lifting mechanism includes two lifting rods arranged side by side and a connecting block connecting the lifting rods to the movable layer; the lifting rod passes through the body of the crusher and extends to the outside of the crusher and its position is limited by fasteners.

[0013] Preferably, at least three reinforcing ribs are provided on the backs of the three movable plates of the movable layer, and the reinforcing ribs fix the three movable plates in a certain arc.

[0014] Preferably, the connecting mechanism includes a swivel seat and a rotating shaft inside the swivel seat provided on both sides of the crusher; the rotating shaft passes through the three reinforcing ribs on the back of the active layer to limit the position, and the first counterattack part is rotatably connected relative to both sides of the crusher based on the rotating shaft.

[0015] Preferably, the first counterattack part, the second counterattack part and the third counterattack part are arranged in the same manner; the first counterattack part, the second counterattack part and the third counterattack part are arranged in the positions of the first counterattack part, the second counterattack part and the third counterattack part according to the different degrees of proximity to the crushing chamber.

[0016] The utility model provides a liner for a crusher and a screening and crushing integrated device thereof, which has the following beneficial effects:

[0017] The utility model can effectively guide and control the movement trajectory of materials during the crushing process by arranging multiple linings in the crushing chamber, thereby improving the crushing efficiency and the uniformity of the crushed materials. The wear resistance and durability of the crusher are enhanced by the arrangement of the linings. The arrangement of the linings can not only reduce the wear of the wall surface of the crushing chamber, but also disperse the impact force during the crushing process, reduce damage to the crusher structure, and thus extend the service life of the crusher. The linings also optimize the material distribution during the crushing process. The isosceles trapezoidal cross-section design of the linings and the coordination with the impact part form a tapered lining gap, which can more effectively adjust and control the distribution of materials in the crushing chamber, making it more uniform, and further improving the crushing efficiency and crushing quality.

[0018] In summary, the beneficial effects of this crusher liner structure include improved crushing efficiency and uniformity, enhanced wear resistance and durability, optimized material distribution, improved installation and maintenance convenience, and reduced vibration and noise, thereby improving the overall performance and reliability of the crusher. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for use in the embodiment of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the utility model.

[0020] Figure 1 It is a schematic diagram of the cross-sectional structure of a liner for a crusher and its integrated screening and crushing equipment;

[0021] Figure 2 It is a schematic diagram of the external structure of a liner for a crusher and its screening and crushing integrated equipment;

[0022] Figure 3 It is a partial schematic diagram of the internal structure of a liner plate for a crusher and its integrated screening and crushing equipment;

[0023] Figure 4 It is a schematic diagram of the installation and coordination of the connection mechanism of the liner plate for a crusher and its integrated screening and crushing equipment;

[0024] Figure 5 It is a schematic diagram of the installation and coordination of the liner for a crusher and its screening and crushing integrated equipment;

[0025] Parts and numbers in the picture:

[0026] 1-crusher, 11-crushing chamber, 12-feeding port, 13-discharging port, 14-top wall, 15-rotor, 16-hammer; 21-first counterattack part, 211-movable layer, 212-buffer layer, 213-lining layer, 214-movable plate, 215-lifting rod, 216-connecting block, 217-fastener, 218-swivel seat, 219-rotating shaft, 22-second counterattack part, 23-third counterattack part, 24-lining, 241-lining body, 242-mounting sleeve, 243-mounting hole, 244-fixing stop, 25-counterattack surface, 26-lining gap, 27-reinforcement rib, 28-large end, 29-small end. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model. Moreover, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the presence of other identical elements in the process, method, article or device including the elements. If there is no conflict, the embodiments of the utility model and the various features in the embodiments can be combined with each other, all within the scope of protection of the utility model.

[0028] Example 1

[0029] See also Figures 1 to 5The embodiment of the utility model provides a liner for a crusher and a screening and crushing integrated device thereof, comprising a crushing chamber 11 of a crusher 1 and a plurality of liner plates 24 covering the crushing chamber 11; the portion of the crusher 1 from the feed port 12 to the inside is the crushing chamber 11; the liner plates 24 are arranged along the top of the crushing chamber 11 to the discharge port 13; a rotor 15 is arranged in the crushing chamber 11, and a plurality of hammer heads 16 are arranged on the rotor 15, which are driven by the high-speed rotation of the rotor 15 to collide with the incoming material and then crush it; a first counterattack part 21, a second counterattack part 22 and a third counterattack part 23 are arranged in the crushing chamber; the first counterattack part 21, the second counterattack part 22 and the third counterattack part 23 are arranged from the feed port 12 of the crusher 1 to the discharge port 13 direction; the first counterattack part 21, the second counterattack part 22 and the third counterattack part 23 are all arranged on the top wall 14 of the crusher 1 and are movably assembled; since the overall depth of the crushing chamber 11 of the crusher 1 is not very deep, and it is difficult for the material to enter the crushing chamber 11 and contact the hammer 16 for many times, a plurality of counterattack parts are arranged, and the plurality of counterattack parts cover the entire crushing chamber 11 from the feed port 12 to the discharge port 13; after the material enters the crushing chamber 11 from the crushing chamber 11, it will generally be ejected onto the inner wall of the crusher 1 after colliding with the high-speed rotating hammer 16. At this time, through the arrangement of the first counterattack part 21, the second counterattack part 22 and the third counterattack part 23, the material can be impacted on the counterattack part and rebounded, and then crushed again, so that the crushing effect of the material is better.

[0030] The first counterattack part 21, the second counterattack part 22 and the third counterattack part 23 have a counterattack surface 25 close to the crushing chamber 11; the counterattack surfaces 25 of the first counterattack part 21, the second counterattack part 22 and the third counterattack part 23 are provided with a plurality of lining plates 24; the lining plates 24 are evenly distributed on the counterattack surfaces 25 of the first counterattack part 21, the second counterattack part 22 and the third counterattack part 23; the cross section of the lining plates 24 is isosceles trapezoidal, so that the lining plates 24 are assembled with the counterattack surface 25 by the side with a larger area; a tapered "U"-shaped, "V"-shaped or "trumpet-shaped" lining plate gap 26 is formed between the two lining plates 24; by setting The liner gap 26 has a specific shape so that the material will not be stuck in the liner gap 26 after colliding with the liner gap 26, which will affect the use status of the liner 24 and the processing efficiency of the machine; since the material collides with the impact part at high speed, the impact part will be severely worn, resulting in its replacement after damage, which will increase the cost a lot; therefore, a liner 24 is set to protect the impact part; by fixing the liner 24 with the following active layer 211 and buffer layer 212, it is installed on the impact part; since a large number of liner plates 24 are combined, when the liner plates 24 are damaged, only one or more liner plates 24 that need to be replaced need to be replaced.

[0031] The side walls of the crushing chamber 11 of the crusher 1 are also provided with lining plates 24; the lining plates 24 include a lining plate body 241 and a mounting sleeve 242; the mounting sleeve 242 includes a large end 28 and a small end 29; the mounting sleeve 242 is provided with a fixed stop 244 on a side close to the small end 29; the fixed stop 244 is arranged in a circular ring and fixed on the outer surface of a side close to the small end 29; the cross section of the lining plate body 241 is arranged in an isosceles trapezoid; the lining plates 24 are provided with a preset interval when installed; the lining plates 24 are provided with a lining plate gap 26 by the interval set when installed; the lining plate gap 26 is formed by the adjacent two sides of the two lining plates 24 to form a "trumpet" shaped lining plate gap 26. Since the material will inevitably collide with the side wall, the feed port 12 and the discharge port 13 of the crusher 1, the lining plates 24 are provided to protect the machine and increase the service life of the machine.

[0032] Furthermore, the first counterattack part 21 includes an active layer 211, a buffer layer 212 and a lining layer 213; the active layer 211 includes three active plates 214, and the three active plates 214 are arranged on the back of the buffer layer 212; the lining layer 213 is arranged on the front of the buffer layer 212; the lining 24 is fixed to the active layer 211 by passing through the buffer layer 212 through the mounting hole 243 arranged in the fixed stop 244. A connecting mechanism is provided at one end of the first counterattack part 21, and the connecting mechanism rotatably connects one end of the first counterattack part 21 to the side wall of the crusher 1; a lifting mechanism is provided at the other end of the first counterattack part 21; the lifting mechanism includes two lifting rods 215 arranged side by side and a connecting block 216 connecting the lifting rod 215 to the movable layer 211; the lifting rod 215 runs through the body of the crusher 1 and extends to the outside of the crusher 1 and its position is limited by a fastener 217; the buffer layer 212 is supported by a flexible material, and generally thicker rubber can be used; it can have a buffering and silent effect, and can also be set to a desired curvature.

[0033] At least three reinforcing ribs 27 are provided on the back of the three movable plates 214 of the movable layer 211, and the reinforcing ribs 27 fix the three movable plates 214 in a certain curvature; the three reinforcing ribs 27 are used to increase the strength of this part; the connecting mechanism includes a swivel seat 218 and a rotating shaft 219 in the swivel seat 218 provided on both sides of the crusher 1; the rotating shaft 219 passes through the three reinforcing ribs 27 on the back of the movable layer 211 to limit the position, and the first counter-attack part 21 is rotatably connected relative to the two sides of the crusher 1 based on the rotating shaft 219; the lifting rod 215 can be adjusted so that the counter-attack part can be rotated based on the swivel seat 218 through the rotating shaft 219, and after maintaining a predetermined angle, the lifting rod 215 is fastened by the fastener 217 and the thread on the lifting rod 215, and the lifting rod 215 is fastened to the chassis so that the counter-attack part maintains a preset curvature.

[0034] Only a buffer layer 212 and a lining layer 213 are provided on the side walls on both sides of the crushing chamber 11 of the crusher 1; the lining 24 is fixed to the side wall of the crusher 1 by passing through the buffer layer 212 through the mounting hole 243 provided in the fixed stop 244; since the lines at the side wall, the feed port 12 and the discharge port 13 of the crusher 1 are relatively fixed, unlike the crushing path in the crushing chamber 11 which is generally curved, there is no need to set the movable layer 211, and there is no need to set it to a specific shape or angle.

[0035] The first counterattack part 21, the second counterattack part 22 and the third counterattack part 23 are arranged in the same manner; the first counterattack part 21, the second counterattack part 22 and the third counterattack part 23 cover the crushing chamber 11 within the positions of the first counterattack part 21, the second counterattack part 22 and the third counterattack part 23 by different degrees of proximity to the crushing chamber 11.

[0036] Example 2

[0037] See also Figure 4 and Figure 5The embodiment of the utility model provides a liner for a crusher. The liner 24 is used for the crusher 1 or the screening equipment, and is mainly used on the inner side of the crusher 1 or the screening equipment body to protect the equipment body from wear and collision of materials. The liner 24 has the characteristics of wear resistance and easy replacement. Conventional liner 24 is usually made of high manganese steel. High manganese steel has the characteristics of wear resistance and high hardness, but at the same time, high manganese steel is not easy to process and has poor welding performance. As a result, when fixing the high manganese steel liner, it can usually only be fixed to the equipment body by complex methods such as pulling the inclined surfaces against each other. Since the liner 24 is usually manufactured by casting, the casting accuracy is poor, and sufficient installation gap must be left between two adjacent liner 24 to be successfully installed, which results in uneven gaps between all the liner 24 inside the body. During the use of the equipment, a lot of materials will usually be stuck in the gaps of the liner, which will affect the crushing effect of the materials after a period of use.

[0038] The main body of the liner 24 is made of high manganese steel, which has high wear resistance and hardness. The mounting sleeve 242 is made of ordinary steel and can be processed. The structure required for fixing the liner 24 is processed on the mounting sleeve 242, and threads are tapped or holes are opened. The outer ring of the mounting sleeve 242 and the inner hole of the liner 24 body are both tapered, and the outer ring of the mounting sleeve 242 also has a circle of fixed stoppers 244. In the process of producing the liner 24, the mounting sleeve 242 is first placed in the corresponding position of the mold, and then molten steel is poured in. After the molten steel solidifies, there will be several positions on the liner 24 that can be processed. At the mounting sleeve 242, the liner body 241 is made of high manganese steel and cannot be machined. At this time, threads can be tapped on the mounting sleeve 242, and the simplest way of bolting is used to fix the entire liner 24. Since the outer ring of the mounting sleeve 242 has a fixed stop 244, even if the mounting sleeve 242 and the liner body 241 are made of different materials and will not be completely fused, the mounting sleeve 242 will still produce relative movement with the liner 24. At the same time, the outer ring of the mounting sleeve 242 and the inner hole of the liner 24 body are both tapered. After the liner 24 is installed on the equipment body, as the bolts are tightened, the mounting sleeve 242 and the liner body 24 will fit more and more tightly. Even under the condition of long-term use of the mounting sleeve 242, after the fixed stop 244 of the small end 29 of the mounting sleeve 242 is worn out, the mounting sleeve 242 and the liner body 241 will still not move relative to each other.

[0039] The edges of the liner 24 are all tapered, and the entire liner 24 is an isosceles trapezoidal structure. When installed, the side with a larger area is close to the machine body, and the side with a smaller area faces the inside of the machine. After the liner 24 is installed, the edges of the two adjacent liner 24 are "trumpet-shaped". When the equipment is running, the material will not be stuck in the gap 26 between the two adjacent liner 24, so that the crushing effect of the material will never be affected.

[0040] Example 3

[0041] See also Figure 1 and Figure 2 The embodiment of the utility model provides a crusher liner machine screening integrated device. A crusher liner 24 machine screening integrated device has the following beneficial effects: the crushing efficiency and crushing uniformity of the crusher 1 are improved. By setting a plurality of liner plates 24 in the crushing chamber 11, the movement trajectory of the material during the crushing process can be effectively guided and controlled, thereby improving the crushing efficiency and the uniformity of the crushed material. The setting of the liner plate 24 enhances the wear resistance and durability of the crusher 1. The setting of the liner plate 24 can not only reduce the wear of the wall surface of the crushing chamber 11, but also disperse the impact force during the crushing process, reduce the damage to the structure of the crusher 1, and thus extend the service life of the crusher 1. The structure of the liner 24 optimizes the material distribution during the crushing process. The isosceles trapezoidal cross-section design of the liner 24 and the cooperation with the impact part form a tapered liner gap 26, which can more effectively adjust and control the distribution of materials in the crushing chamber 11, making it more uniform, and further improving the crushing efficiency and crushing quality; the convenience of installation and maintenance, the liner 24 is fixed by the installation sleeve 242, and the installation and replacement of the liner 24 are simpler and faster, which greatly saves the time cost of maintenance and replacement. The setting of the multi-layer impact part reduces vibration and noise. The setting and optimized design of the liner 24 can reduce vibration and noise during the operation of the crusher 1, improve the working environment, and improve the comfort of operation. In summary, the beneficial effects of the liner 24 structure of the crusher 1 include improving crushing efficiency and uniformity, enhancing wear resistance and durability, optimizing material distribution, improving installation and maintenance convenience, and reducing vibration and noise, thereby improving the overall performance and reliability of the crusher 1.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A liner for a crusher, characterized in that: It comprises a lining plate body (241) and a mounting sleeve (242); the mounting sleeve (242) is arranged in a truncated cone shape and has an outer surface with a certain inclination; the inner wall of the mounting sleeve (242) is arranged as a mounting hole (243); The mounting sleeve (242) comprises a large end (28) and a small end (29); the mounting sleeve (242) is provided with a fixed stopper (244) on a side close to the small end (29); the fixed stopper (244) is arranged in a circular ring and is fixed on an outer surface of a side close to the small end (29); The cross section of the lining plate body (241) is arranged in an isosceles trapezoidal shape; a preset interval is provided between two lining plates (24) when they are installed; a lining plate gap (26) is formed between two lining plates (24) by the interval provided when they are installed; the lining plate gap (26) is formed by two adjacent sides of the two lining plates (24) to form a "U"-shaped or "V"-shaped lining plate gap (26).

2. A screening and crushing integrated equipment, characterized in that: Comprising a liner for a crusher as claimed in claim 1; the crusher (1) comprises a crushing chamber (11) and a plurality of liner plates (24) covering the crushing chamber (11); the portion of the crusher (1) from a feed inlet (12) inward is the crushing chamber (11); the liner plates (24) are arranged along the top of the crushing chamber (11) toward a discharge port (13); A first impact part (21), a second impact part (22) and a third impact part (23) are provided in the crushing chamber (11); the first impact part (21), the second impact part (22) and the third impact part (23) are arranged from the feed port (12) of the crusher (1) in the direction of the discharge port (13); the first impact part (21), the second impact part (22) and the third impact part (23) are all arranged on the top wall (14) of the crusher (1) and are movably assembled therewith; A plurality of lining plates (24) are evenly distributed on the counterattack surfaces (25) of the first counterattack portion (21), the second counterattack portion (22) and the third counterattack portion (23); the lining plates (24) are assembled with the counterattack surface (25) by a side with a larger area.

3. The integrated screening and crushing equipment according to claim 2, characterized in that: Lining plates (24) are also provided on the side walls on both sides of the crushing chamber (11) of the crusher (1).

4. The integrated screening and crushing equipment according to claim 2, characterized in that: The first counterattack part (21) comprises an active layer (211), a buffer layer (212) and a lining layer (213); the active layer (211) comprises three active plates (214), and the three active plates (214) are arranged on the back of the buffer layer (212); the lining layer (213) is arranged on the front of the buffer layer (212).

5. The integrated screening and crushing equipment according to claim 4, characterized in that: The lining plate (24) is fixed to the movable layer (211) by passing through the buffer layer (212) via a mounting hole (243) provided in the fixing stop (244).

6. The integrated screening and crushing equipment according to claim 4, characterized in that: Only the buffer layer (212) and the lining layer (213) are provided on the side walls on both sides of the crushing chamber (11) of the crusher (1); the lining (24) is fixed to the side wall of the crusher (1) by passing through the buffer layer (212) via the mounting hole (243) provided in the fixing stop (244).

7. The integrated screening and crushing equipment according to claim 2, characterized in that: A connecting mechanism is provided at one end of the first impact part (21), and the connecting mechanism connects one end of the first impact part (21) to the side wall of the crusher (1) in a rotatable manner; a lifting mechanism is provided at the other end of the first impact part (21); the lifting mechanism comprises two lifting rods (215) arranged side by side and a connecting block (216) connecting the lifting rods (215) to the movable layer (211); the lifting rod (215) passes through the body of the crusher (1), extends to the outside of the crusher (1), and its position is limited by a fastener (217).

8. The integrated screening and crushing equipment according to claim 7, characterized in that: At least three reinforcing ribs (27) are provided on the backs of the three movable plates (214) of the movable layer (211), and the reinforcing ribs (27) fix the three movable plates (214) in a certain arc.

9. The integrated screening and crushing equipment according to claim 8, characterized in that: The connection mechanism comprises a rotating seat (218) arranged on both sides of the crusher (1) and a rotating shaft (219) in the rotating seat (218); the rotating shaft (219) passes through the three reinforcing ribs (27) on the back of the active layer (211) to limit the position, and the first counterattack part (21) is rotatably connected relative to the two sides of the crusher (1) based on the rotating shaft (219).

10. The integrated screening and crushing equipment according to any one of claims 2 to 9, characterized in that: The first counterattack part (21), the second counterattack part (22) and the third counterattack part (23) are arranged in the same manner; the first counterattack part (21), the second counterattack part (22) and the third counterattack part (23) are arranged to cover the crushing chamber (11) at different positions of the first counterattack part (21), the second counterattack part (22) and the third counterattack part (23) by varying the degree of proximity to the crushing chamber (11).

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