Adjustable installation structure of inside lining plate of crushing chamber

Abstract

The application provides a breakage cavity internal lining plate adjustable mounting structure which comprises a chamber, a chamber door, a first counterattack plate, a second counterattack plate and a connecting rod. The chamber is internally rotatably provided with a hammer head, and the chamber door is hingedly arranged on one side or the opposite side of the chamber. The first counterattack plate and the second counterattack plate are installed on the inner side of the chamber door from top to bottom. The guide rod is fixedly installed on the inner wall of the chamber door and is used for guiding the moving direction of the connecting rod. When the chamber door needs to be opened for maintenance of the lining plate or the hammer head in the later period, the second counterattack plate is first retracted through the pushing assembly. In the retraction process, the second counterattack plate is flipped at the bottom end in the direction away from the hammer head through the guidance of the connecting rod, and the storage can be completed within the effective stroke of the second counterattack plate, the internal adjustment space is saved, and the overall occupied space of the crusher is reduced.

Description

Technical Field

[0001] This invention belongs to the field of crusher technology, specifically relating to an adjustable installation structure for the internal liner of a crushing chamber. Background Technology

[0002] The working principle of a hammer crusher is based on rotating hammers and liners mounted on the inner wall of the crushing chamber. The material is crushed by the rotation of the hammers and the action of the liner. The size of the crushed particles is typically adjusted by changing the gap between the bottom liner and the hammers. Therefore, the liner on the inner wall of the crushing chamber has an adjustable function, moving closer to or further away from the hammers. During use, both the hammers and the liner will experience wear. To facilitate maintenance, the side of the crushing chamber with the liner is usually designed as an openable door, providing sufficient operating space for later maintenance.

[0003] Because the gap between the bottom liner and the hammer is small when the crushing chamber door is opened directly, the liner is prone to interfering with the hammer. It is necessary to adjust the liner away from the hammer in advance so that the liner can avoid the hammer when the door is opened. Therefore, sufficient adjustment space needs to be designed inside the crushing chamber to avoid the adjustment of the liner, which increases the overall space of the crusher and the area occupied on site. Summary of the Invention

[0004] This invention provides an adjustable installation structure for the internal liner of the crushing chamber, which aims to solve the problem in the prior art where the hammer crusher increases in size and area due to the need to easily open the chamber door.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide an adjustable installation structure for the internal liner of the crushing chamber, comprising: A compartment, wherein a hammer is rotatably mounted inside the compartment; The door is hinged at the bottom to the compartment. The first counterattack plate is hinged at its top to the compartment door; The second counter-attack plate is connected at its top to the bottom of the first counter-attack plate, and a pushing component is installed on the door to drive the second counter-attack plate to move closer to or away from the hammer. A connecting rod is connected in the middle to the bottom end of the second counterattack plate. A guide rod for guiding the movement of the connecting rod is installed on the side wall of the compartment door. The guide rod is inclined downward in a direction away from the hammer head.

[0006] In one possible implementation, the top of the second counter-attack plate extends to the side of the first counter-attack plate away from the hammer head, and an elastic element is provided between the first and second counter-attack plates to pull the top of the second counter-attack plate against the side wall of the first counter-attack plate.

[0007] In one possible implementation, the connecting rod includes: A sliding rod, wherein the guide rod is provided with a groove for guiding the sliding rod to slide; A pivot sleeve, one end of which is pivotally connected to the sliding rod; A support rod is inserted inside the pivot sleeve, and the bottom of the second counterattack plate is hinged to the support rod.

[0008] In one possible implementation, the bottom end of the guide rod is hinged to the side wall of the compartment door, and the compartment door is also provided with an adjustment assembly for adjusting the swing angle of the guide rod.

[0009] In one possible implementation, the regulating component includes: The gear is rotatably mounted on the side wall of the compartment door and is fixedly connected to the bottom end of the guide rod; The rack is slidably disposed on the side wall of the compartment door and meshes with the gear. An adjusting screw is rotatably mounted on the bin door and threadedly connected to the gear rack, used to drive the gear rack to move on the bin door.

[0010] In one possible implementation, a buffer is also installed on the side wall of the compartment door, with the fixed end and the buffer end of the buffer connected to the adjusting screw and the compartment door, respectively.

[0011] In one possible implementation, both the buffer and the rack are provided with threaded holes for mounting the adjusting screw, and the two threaded holes have opposite directions of rotation.

[0012] In one possible implementation, the pushing component includes: The connector is hinged to the middle of the second counterattack plate; The push screw has one end inserted into the connector and is rotatably disposed inside the connector; A drive nut is rotatably mounted on the compartment door and threadedly connected to the push screw.

[0013] In one possible implementation, the push screw has an anti-rotation edge at its center, and the compartment door has a limiting surface that slides with the anti-rotation edge.

[0014] In one possible implementation, the buffer includes: The cylinder body, on which the adjusting screw is mounted; A piston rod extends through the cylinder body, with both ends of the piston rod fixedly mounted on the outer wall of the compartment door. A piston is located in the middle of the piston rod, and in the free state, the piston is located in the middle of the cylinder body.

[0015] The solution shown in this application embodiment, compared with the prior art, features a chamber with a hammer rotating inside. A chamber door is hinged to one or the opposite side of the chamber and opened or closed by a hydraulic cylinder. A first impact plate and a second impact plate are installed from top to bottom on the inner side of the chamber door. A liner is installed on the first and second impact plates, and a connecting rod is connected to the bottom of the second impact plate. The two ends of the connecting rod are slidably mounted on the opposite inner walls of the chamber door, and a guide rod is fixedly installed on the inner wall of the chamber door to guide the movement of the connecting rod. When the chamber door needs to be opened for maintenance of the liner or hammer, the second impact plate is first retracted by pushing the assembly. During retraction, the bottom of the second impact plate flips away from the hammer, guided by the connecting rod. This retraction and flipping effectively avoids interference between the bottom of the second impact plate and the hammer, allowing for storage within the effective stroke of the second impact plate, saving internal adjustment space and reducing the overall space occupied by the crusher. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the adjustable installation structure of the internal liner of the crushing chamber provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the installation structure of the first and second impact plates provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of the connecting rod and adjusting assembly provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the connection structure between the push screw and the second counterattack plate provided in an embodiment of the present invention; Figure 5 A schematic diagram of the connection structure between the push screw and the second counter-attack plate provided in another embodiment of the present invention; Figure 6 A schematic diagram of the mounting structure of the push screw and the drive nut provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the buffer in its free state according to an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Compartment; 2. Compartment door; 3. First impact plate; 31. Elastic element; 4. Second impact plate; 5. Pushing assembly; 51. Connecting element; 52. Pushing screw; 53. Drive nut; 6. Guide rod; 7. Connecting rod; 71. Sliding rod; 72. Pivot sleeve; 73. Support rod; 8. Adjusting assembly; 81. Gear; 82. Gear rack; 83. Adjusting screw; 84. Buffer element; 841. Cylinder body; 842. Piston rod. Detailed Implementation

[0018] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0019] Please refer to the following: Figures 1 to 7 The adjustable installation structure of the crushing chamber liner provided by the present invention will now be described. The adjustable installation structure of the crushing chamber liner includes a chamber 1, a chamber door 2, a first impact plate 3, a second impact plate 4, and a connecting rod 7. A hammer is rotatably mounted inside the chamber 1; the bottom end of the chamber door 2 is hinged to the chamber 1; the top end of the first impact plate 3 is hinged to the chamber door 2; the top end of the second impact plate 4 is connected to the bottom of the first impact plate 3; a pushing assembly 5 is installed on the chamber door 2 to drive the second impact plate 4 to move closer to or away from the hammer; the middle part of the connecting rod 7 is connected to the bottom end of the second impact plate 4; a guide rod 6 is installed on the side wall of the chamber door 2 to guide the movement of the connecting rod 7, and the guide rod 6 is inclined downward in the direction away from the hammer.

[0020] The adjustable installation structure of the crushing chamber liner provided in this embodiment, compared with the prior art, features a chamber 1 with a hammer rotating inside it. A chamber door 2 is hinged to one or the opposite side of the chamber 1, and the chamber door 2 is opened or closed by a hydraulic cylinder. A first impact plate 3 and a second impact plate 4 are installed from top to bottom on the inner side of the chamber door 2. The liner is installed on the first impact plate 3 and the second impact plate 4, and a connecting rod 7 is connected to the bottom end of the second impact plate 4. The two ends of the connecting rod 7 are slidably mounted on the opposite inner walls of the chamber door 2, and a guide rod 6 is fixedly installed on the inner wall of the chamber door 2 to guide the movement direction of the connecting rod 7. When the liner or hammer needs to be maintained later and the hopper door 2 is opened, the second impact plate 4 is first retracted by pushing component 5. During the retraction process, the bottom end of the second impact plate 4 is flipped away from the hammer by the guide of connecting rod 7. The retraction and flipping of the second impact plate 4 can effectively avoid interference between the bottom end of the second impact plate 4 and the hammer. It can be stored within the effective stroke of the second impact plate 4, saving internal adjustment space and thus reducing the overall space occupied by the crusher.

[0021] Specifically, in this embodiment, the second counter-attack plate 4 is an arc-shaped structure, and the liner is detachably installed on the inner wall of the arc-shaped structure.

[0022] Specifically, in this embodiment, a guide groove for guiding the connecting rod 7 is provided on the outer side wall of the guide rod 6. The length direction of the guide groove is set along the length direction of the guide rod 6. The end of the connecting rod 7 is limited inside the guide groove and can only slide along the length direction of the guide groove.

[0023] In some embodiments, the first counter-attack plate 3 and the second counter-attack plate 4 can be adopted as follows: Figure 2 The structure shown. See also Figure 2 The top of the second impact plate 4 extends to the side of the first impact plate 3 away from the hammer head, and an elastic element 31 is provided between the first impact plate 3 and the second impact plate 4 to pull the top of the second impact plate 4 against the side wall of the first impact plate 3. The top of the first impact plate 3 is hinged to the chamber plate, and the middle of the second impact plate 4 is hinged to the drive end of the push assembly 5. The top of the second impact plate 4 extends to the side of the first impact plate 3 away from the hammer head. The elastic element 31 is a tension spring, located on the side of the first impact plate 3 and the second impact plate 4 away from the hammer head, and also on the side of the hinge axis of the first impact plate 3 and the second impact plate 4 away from the hammer head. By pulling the first impact plate 3 and the second impact plate 4 with the elastic element 31, the top of the second impact plate 4 can abut against the first impact plate 3.

[0024] Specifically, in this embodiment, a plurality of stiffeners are provided on the first counterattack plate 3. The stiffeners are arranged at intervals along the axial direction of the hammer head, and the stiffeners are all hinged to the door 2.

[0025] Specifically, in this embodiment, the top end of the second impact plate 4 abuts against the bottom of the first impact plate 3 along its entire length to prevent material from flowing out from the gap between the first impact plate 3 and the second impact plate 4.

[0026] In some embodiments, the connecting rod 7 described above can be as follows: Figure 3 The structure shown. See also Figure 3The connecting rod 7 includes a sliding rod 71, a pivot sleeve 72, and a support rod 73. A guide rod 6 has a groove for guiding the sliding rod 71; one end of the pivot sleeve 72 is pivotally connected to the sliding rod 71; the support rod 73 is inserted inside the pivot sleeve 72, and the bottom of the second counter-attack plate 4 is hinged to the support rod 73. The sliding rod 71 is slidably disposed inside the guide rod 6. A limiting plate is provided on the guide rod 6 to restrict the sliding rod 71 to slide only along the length of the guide rod 6. The end of the pivot sleeve 72 has a spherical structure and is pivotally connected to the end of the sliding rod 71. The other end of the pivot sleeve 72 is inserted into the support rod 73, which is hinged to the bottom end of the second counter-attack plate 4. The end of the support rod 73 is slidably disposed inside the pivot sleeve 72 along its axial direction. When the overall angle of the connecting rod 7 changes, the length of the connecting rod 7 needs to change. By sliding the support rod 73 inside the pivot sleeve 72, the length of the connecting rod 7 can be adaptively changed.

[0027] Specifically, by changing the angle between the support rod 73 and the sliding rod 71, the angle of the second counterattack plate 4 can be adjusted. The adjustment of the angle of the second counterattack plate 4 can be applied to the adjustment of the gap between multiple parts of the second counterattack plate 4 and the hammer head.

[0028] Specifically, in this embodiment, the distance between the second impact plate 4 and the hammer head can be adjusted by pushing component 5, and the bottom end of the second impact plate 4 can be adjusted to be more parallel to the axis of the hammer head by tilting the connecting rod 7, ensuring the uniformity of the gap. During the process of pushing component 5 pushing the second impact plate 4 towards the hammer head, the middle part of the second impact plate 4 moves towards the hammer head, and the connecting rod 7 at the bottom end of the second impact plate 4 tilts upwards under the guidance of the guide rod 6, thereby causing the second impact plate 4 as a whole to move towards the hammer head, and the gap between the bottom end of the second impact plate 4 and the hammer head gradually decreases.

[0029] In some embodiments, the guide rod 6 described above can be as follows: Figure 2 , Figure 3 The structure shown. See also... Figure 2 , Figure 3 The bottom end of the guide rod 6 is hinged to the side wall of the door 2. The door 2 is also equipped with an adjustment assembly 8 for adjusting the swing angle of the guide rod 6. The bottom end of the guide rod 6 is hinged to the side wall of the door 2, and the axis of the hinge shaft of the guide rod 6 on the door 2 is parallel to the axis of the hammer.

[0030] Specifically, in this embodiment, guide rods 6 are hinged to the two opposite side walls of the door 2 along the hammer head axis, and the two guide rods 6 are coaxially arranged on the hinge axis of the door 2. An adjustment component 8 for adjusting the flipping angle is also independently provided. By adjusting the angle of one side of the guide rod 6, the height position of one side of the connecting rod 7 can be adjusted, thereby adjusting the gap between the lower ends of the second counterattack plate 4 and the hammer head.

[0031] Specifically, the second counter-attack plate 4 is translated horizontally and perpendicular to the hammer head by the pushing component 5. Combined with the end structure of the connecting rod 7, the pivot sleeve 72 is pivotally connected to the end of the sliding rod 71, thereby tilting the connecting rod 7 to adjust the angle of the second counter-attack plate 4.

[0032] In some embodiments, the adjustment component 8 described above may employ, for example... Figure 3 The structure shown. See also Figure 3 The adjusting assembly 8 includes a gear 81, a rack 82, and an adjusting screw 83. The gear 81 is rotatably mounted on the side wall of the compartment door 2 and fixedly connected to the bottom end of the guide rod 6. The rack 82 is slidably mounted on the side wall of the compartment door 2 and meshes with the gear 81. The adjusting screw 83 is rotatably mounted on the compartment door 2 and threadedly connected to the rack 82, used to drive the rack 82 to move on the compartment door 2. The gear 81 and the guide rod 6 are fixedly connected via a hinge shaft, and the gear 81 and the hinge shaft are coaxial. When the gear 81 rotates, it can drive the guide rod 6 to swing together.

[0033] Specifically, in this embodiment, the rack 82 is slidably disposed on the outer wall of the compartment door 2 along its length and meshes with the gear 81. Thus, when the rack 82 moves, it can drive the gear 81 to rotate. An adjusting screw 83 is also rotatably disposed on the side wall of the compartment door 2. An extension with a threaded hole extends from the middle of the rack 82. The adjusting screw 83 is threadedly connected to the threaded hole, thereby adjusting the position of the rack 82 by rotating the adjusting screw 83.

[0034] Preferably, in this embodiment, a nut for abutting against the end face of the extension is also threaded onto the adjusting screw 83, thereby improving the stability of the relative position between the adjusting screw 83 and the rack 82.

[0035] In some embodiments, the aforementioned rack 82 may be as follows: Figure 3 , Figure 7 The structure shown. See also... Figure 3 , Figure 7A buffer component 84 is also installed on the side wall of the compartment door 2. The fixed end and the buffer end of the buffer component 84 are respectively connected to the adjusting screw 83 and the compartment door 2. The adjusting screw 83 is installed on the buffer component 84. When the first counter-attack plate 3 and the second counter-attack plate 4 experience greater internal resistance, they will flip outward. The buffer component 84 can play a buffering and protective role, avoiding damage to various components caused by greater resistance.

[0036] Specifically, in this embodiment, when a larger stone moves to the bottom of the first counterattack plate 3, causing the first counterattack plate 3 to experience greater resistance, the bottom of the first counterattack plate 3 flips outward, thereby causing the second counterattack plate 4 to flip outward. When the resistance reaches a certain force, the second counterattack plate 4 will drive the guide rod 6 to flip upward. At this time, the gear 81 drives the rack 82 to move, the rack 82 drives the adjusting screw 83 to move, and the buffer 84 plays a certain buffering role.

[0037] Specifically, in this embodiment, when the enlarged stone moves to the bottom of the second impact plate 4, the resistance of the second impact plate 4 increases, the second impact plate 4 swings downward, and drives the guide rod 6 to swing downward. At this time, the gear 81 drives the rack 82 to move, the rack 82 drives the adjusting screw 83 to move, and the buffer 84 plays a certain buffering role.

[0038] In some embodiments, the buffer 84 described above may be as follows: Figure 3 , Figure 7 The structure shown. See also... Figure 3 , Figure 7 Both the buffer element 84 and the rack 82 are provided with threaded holes for installing the adjusting screw 83, and the two threaded holes have opposite directions of rotation. The driving end of the buffer element 84 is fixedly installed on the outer wall of the door 2, and a connecting block is fixedly installed on the fixed end of the buffer element 84. The adjusting screw 83 is provided with two threaded sections with opposite directions of rotation. The two threaded sections are respectively threaded to the connecting block and the rack 82, so that the relative position of the rack 82 and the fixed part of the buffer element 84 can be quickly adjusted by rotating the adjusting screw 83.

[0039] In some embodiments, the aforementioned actuating component 5 may employ, for example... Figure 2 , Figure 4 and Figure 6 The structure shown. See also... Figure 2 , Figure 4 and Figure 6The pushing assembly 5 includes a connector 51, a pushing screw 52, ​​and a drive nut 53. The connector 51 is hinged to the middle of the second impact plate 4; one end of the pushing screw 52 is inserted into the connector 51 and rotatably disposed within it; the drive nut 53 is rotatably disposed on the door 2 and threadedly connected to the pushing screw 52. The connector 51 is hinged to the middle of the second impact plate 4, and the axis of the hinge shaft of the connector 51 is arranged parallel to the axis of the hammer. A sleeve is provided at the other end of the connector 51, and the end of the pushing screw 52 is installed inside the sleeve and can rotate within it. This allows the second impact plate 4 to rotate relative to the pushing screw 52 about the axis of the pushing screw 52, ​​accommodating the adjustment of the height at both ends of the connecting rod 7.

[0040] Under normal conditions, the hinge shaft of the guide rod 6 on the door 2 and the hinge shaft of the connecting piece 51 on the second impact plate 4, combined with the connecting rod 7, form a stable triangular structure, thereby maintaining the stability of the positions of the first impact plate 3 and the second impact plate 4, achieving a good technical effect in crushing materials. When material jamming or increased resistance occurs, the force exerted on the guide rod 6 by the connecting rod 7 increases. When the force can overcome the initial resistance of the buffer 84, the guide rod 6 swings, causing the position of the connecting rod 7 inside the guide rod 6 to change. This causes the second impact plate 4 to flip about the hinge shaft of the connecting piece 51, which can buffer the flipping and prevent material jamming.

[0041] Specifically, in this embodiment, the buffer 84 is a nitrogen cylinder or a hydraulic cylinder.

[0042] Specifically, in this embodiment, a limiting part with an outer diameter larger than the pushing screw 52 is provided at the end of the pushing screw 52, ​​and plugs for preventing the limiting part from disengaging from the ends of the sleeve of the connecting member 51 are provided at both ends of the sleeve.

[0043] Specifically, in this embodiment, a rib is provided in the middle of the second counterattack plate 4, and a slot for installing the rib is provided on the connector 51, with the rib slidably disposed inside the slot. This allows the second counterattack plate 4 to be rotated and adjusted relative to the connector 51 only along the pitch angle.

[0044] Among some possible implementations, see [link to relevant documentation]. Figure 5 This application also provides an embodiment in which a connecting sleeve is hinged to the connecting member 51, and the axis of the hinge shaft of the connecting sleeve on the connecting member 51 is arranged in the vertical direction. Two tightening members are also threadedly connected to the connecting member 51 for abutting against the outer wall of the connecting sleeve. The tightening members abut against the two outer walls of the connecting sleeve along the direction of the hammer head axis, respectively, for adjusting the rotation angle of the connecting sleeve relative to the connecting member 51.

[0045] Specifically, in this embodiment, two wing plates are fixedly installed on the connector 51, and the two wing plates are arranged parallel to each other at intervals along the axis of the hammer head. The connecting sleeve is located between the two wing plates, and a clearance is provided between the two wing plates to prevent the connecting sleeve from rotating on the clamping member. This allows the connecting sleeve to rotate horizontally between the two wing plates and be limited by the two clamping members.

[0046] Specifically, the bottom end of the second impact plate 4 is inclined downwards or is arc-shaped. The connecting sleeve can rotate relative to the connecting member 51, allowing adjustment of the horizontal angle of the second impact plate 4. Furthermore, the two ends of the connecting rod 7 are pivotally connected to the sliding rod 71 via pivot sleeves 72, enabling adjustment of the horizontal angle of the second impact plate 4. Combined with the rotating push screw 52 in the pushing assembly 5, which is located inside the connecting sleeve, this allows the top of the second impact plate 4 to effectively abut against the first impact plate 3, while simultaneously adjusting the gap between the bottom end of the second impact plate 4 and the hammer head.

[0047] In some embodiments, the aforementioned push screw 52 may be adopted as follows: Figure 6 The structure shown. See also Figure 6 An anti-rotation edge is provided in the middle of the push screw 52, ​​and a limiting surface is provided on the door 2 to slide in conjunction with the anti-rotation edge. An installation sleeve is fixedly installed on the outer wall of the door 2. The inner hole of the installation sleeve is provided with a limiting surface. An anti-rotation edge is provided in the middle of the push screw 52. The anti-rotation edge slides in conjunction with the limiting surface, so that the push screw 52 can only slide along the length direction of the push screw 52 on the door 2, preventing the screw from rotating on the door 2 and affecting the adjustment of the screw position.

[0048] Specifically, in this embodiment, a fixing sleeve is fixedly installed on the side wall of the door 2, and a drive nut 53 is rotatably disposed at one end of the fixing sleeve, while a pushing screw 52 slides and engages with the other end of the fixing sleeve. The structure is simple and facilitates the installation of the drive nut 53 and the pushing screw 52.

[0049] In some embodiments, the buffer 84 described above may be as follows: Figure 7 The structure shown. See also Figure 7The buffer component 84 includes a cylinder 841 and a piston rod 842. An adjusting screw 83 is mounted on the cylinder 841. The piston rod 842 extends through the cylinder 841, with both ends fixedly mounted on the outer wall of the compartment door 2. A piston is located in the middle of the piston rod 842; in the free state, the piston is located in the middle of the cylinder 841. Both ends of the piston rod 842 are located outside the cylinder 841 and are fixedly mounted on the outer wall of the compartment door 2 via a fixing seat. The cylinder 841 is slidably mounted in the middle of the piston rod 842, and a piston is fixedly mounted in the middle of the piston rod 842 and slidably mounted inside the cylinder 841. In the free state, the piston is located in the middle of the cylinder 841, and both ends of the piston inside the cylinder 841 are filled with buffer medium. When the first counter-attack plate 3 and the second counter-attack plate 4 experience significant external resistance, the piston rod 842 moves relative to the cylinder 841 to achieve a buffering effect.

[0050] Specifically, in this embodiment, sealing rings that are sealed to the piston rod 842 are provided at both ends of the cylinder body 841. The specific installation structure of the sealing rings adopts the prior art and will not be described here.

[0051] Specifically, in this embodiment, the toothed rods 82 on both sides of the door 2 are connected to the outer wall of the door 2 by buffer members 84, so that both ends of the connecting rod 7 can be buffered.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable mounting structure for the internal liner of a crushing chamber, characterized in that, include: A compartment (1) is provided with a hammer that is rotatably mounted inside the compartment (1); The bottom end of the door (2) is hinged to the compartment (1); The first counterattack plate (3) is hinged at the top to the door (2); The second counterattack plate (4) is connected at the top to the bottom of the first counterattack plate (3), and the door (2) is equipped with a push assembly (5) for driving the second counterattack plate (4) to move closer to or away from the hammer. The connecting rod (7) is connected in the middle to the bottom end of the second counterattack plate (4). The opposite side walls of the compartment door (2) are equipped with guide rods (6) for guiding the movement of the connecting rod (7). The guide rods (6) are inclined downward in the direction away from the hammer head. The top of the second counter-attack plate (4) extends to the side of the first counter-attack plate (3) away from the hammer head, and an elastic element (31) for pulling the top of the second counter-attack plate (4) against the side wall of the first counter-attack plate (3) is provided between the first counter-attack plate (3) and the second counter-attack plate (4). The connecting rod (7) includes: The sliding rod (71) is provided with a groove on the guide rod (6) for guiding the sliding rod (71) to slide; The pivot sleeve (72) has a ball-shaped structure at one end, and one end of the pivot sleeve (72) is pivotally connected to the sliding rod (71); A support rod (73) is inserted inside the pivot sleeve (72), and the bottom of the second counterattack plate (4) is hinged to the support rod (73); The bottom end of the guide rod (6) is hinged to the side wall of the door (2), and the door (2) is also provided with an adjustment component (8) for adjusting the swing angle of the guide rod (6); The adjustment component (8) includes: Gear (81) is rotatably mounted on the side wall of the door (2) and is fixedly connected to the bottom end of the guide rod (6); The rack (82) is slidably disposed on the side wall of the door (2) and meshes with the gear (81); An adjusting screw (83) is rotatably mounted on the door (2) and threadedly connected to the rack (82) to drive the rack (82) to move on the door (2). The adjusting screw (83) is provided with two threaded sections with opposite directions. A buffer (84) is also installed on the side wall of the door (2). The driving end of the buffer (84) is connected to the door (2). A connecting block is fixedly installed on the fixed end of the buffer (84). The two threaded parts on the adjusting screw (83) are respectively threaded to the connecting block and the toothed rod (82). Both the connecting block and the toothed rod (82) are provided with threaded holes for installing the adjusting screw (83), and the two threaded holes have opposite directions of rotation.

2. The adjustable mounting structure for the internal liner of the crushing chamber as described in claim 1, characterized in that, The actuation component (5) includes: The connector (51) is hinged to the middle of the second counterattack plate (4); The push screw (52) is inserted into the connector (51) at one end and is rotatably disposed inside the connector (51); The drive nut (53) is rotatably mounted on the door (2) and threadedly connected to the push screw (52).

3. The adjustable mounting structure for the internal liner of the crushing chamber as described in claim 2, characterized in that, The push screw (52) is provided with an anti-rotation edge in the middle, and the door (2) is provided with a limiting surface that slides with the anti-rotation edge.

4. The adjustable mounting structure for the internal liner of the crushing chamber as described in claim 1, characterized in that, The buffer (84) includes: The cylinder body (841) is on which the adjusting screw (83) is mounted; A piston rod (842) is provided through the cylinder body (841). Both ends of the piston rod (842) are fixedly installed on the outer side wall of the door (2). A piston is provided in the middle of the piston rod (842). In the free state, the piston is located in the middle of the cylinder body (841).

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