An extrusion crusher

Abstract

The utility model relates to a kind of extrusion crusher belongs to the technical field of crusher, especially to a kind of extrusion crusher.The utility model provides a kind of extrusion crusher with convenient ore inlet size adjustment.The utility model includes frame 1, rotary shaft 2, rotatable eccentricity's roll 3 being arranged on rotary shaft 2, upper rotating body 4, lower rotating body 5, rotating shaft 6, connecting rod 7 and adjusting device 8 for the eccentric load adjustment of lower rotating body 5, it is characterized in that frame 1 is provided with rotating shaft 6, rotary shaft 2 and adjusting device 8, upper rotating body 4 lower end is connected with the upper end of lower rotating body 5 by rotating shaft 6, lower rotating body 5 lower part is connected with the adjustment drive output end of adjusting device 8, connecting rod 7 upper end is connected with the upper end of upper rotating body 4, and connecting rod 7 lower end is connected with frame 1;Connecting rod 7 is detachable piece or telescopic piece.

Description

Technical Field

[0001] This invention belongs to the field of crusher technology, and particularly relates to a compression crusher. Background Technology

[0002] For ore crushing, primary crushing is essential. Currently, the main crushing equipment available for primary crushing in hard rock mines is the jaw crusher and the gyratory crusher. For large-scale hard rock mines, the gyratory crusher is essentially the only option. However, the structural principle of the gyratory crusher leads to several inherent and difficult-to-solve problems: 1. The equipment is tall and has a large dynamic load, resulting in high investment in civil engineering foundations and a long construction period. 2. There are many types of spare parts, making maintenance and repair difficult and causing long downtime. 3. The feed inlet has a short crushing stroke and is prone to clogging, requiring frequent handling by the crushing arm. 4. The equipment is difficult to design and manufacture, resulting in high procurement costs. Therefore, the gyratory crusher is currently the only choice for large-scale hard rock mines, forcing users to accept its inherent problems.

[0003] The "guide element 5" described in the CN201380056927 patent for an eccentric roller crusher is a single, integral component fixed to the frame. During liner replacement, this entire component needs to be removed, requiring significant lifting capacity, which is unacceptable in confined working spaces. Secondly, this rigid connection fails to effectively protect the equipment when handling hard, difficult-to-crush materials, potentially leading to substantial losses. Furthermore, any changes to the inlet require replacing the entire "guide element 5," resulting in increased costs and workload.

[0004] In the CN201380068691 patent for a roller crusher, a method of using a hydraulic cylinder to lift a "wedge" is employed to change the equipment's discharge opening and protect the equipment when passing through difficult-to-crush materials. The shortcomings of this structure are: 1. The up-and-down movement of the "wedge" requires commands from the electrical control system, with the hydraulic system executing the corresponding actions. However, the sudden increase in load caused by difficult-to-crush materials entering the crushing chamber is instantaneous. The response speed of the entire control and execution protection action cannot match the speed of the load increase, inevitably leading to cumulative equipment damage. 2. If the angle of the "wedge" is small, it will self-lock, and its downward protection action will be hindered by friction, resulting in a delayed action. If the angle is increased, eliminating the self-lock, the main components of the equipment will still bear a large proportion of the instantaneous sudden load, inevitably causing damage to related components. Therefore, regardless of the design of the wedge angle, it cannot provide timely protection. 3. When the equipment is crushing ore, material imbalance is unavoidable. This is especially serious for equipment with a wider width. As a result, the lifting force required on both sides of the wedge is different in the width direction. This structure will inevitably cause the wedge to rise and fall unevenly when crushing ore with an imbalance in a wide equipment, affecting the operation of the equipment and even causing the adjustment and protection actions to be blocked. Summary of the Invention

[0005] The present invention addresses the above-mentioned problems by providing a compression crusher that facilitates adjustment of the ore inlet size.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: the present invention includes a frame 1, a rotary shaft 2, a rotatable eccentrically mounted roller 3 on the rotary shaft 2, an upper rotating body 4, a lower rotating body 5, a rotating shaft 6, a connecting rod 7, and an adjustment device 8 for adjusting the eccentric load of the lower rotating body 5. The frame 1 is characterized by having a rotating shaft 6, a rotary shaft 2, and an adjustment device 8. The lower end of the upper rotating body 4 is connected to the upper end of the lower rotating body 5 via the rotating shaft 6. The lower part of the lower rotating body 5 is shaft-connected to the adjustment drive output end of the adjustment device 8. The upper end of the connecting rod 7 is shaft-connected to the upper end of the upper rotating body 4, and the lower end of the connecting rod 7 is shaft-connected to the frame 1. The connecting rod 7 is a detachable or telescopic component.

[0007] As a preferred embodiment, the rotary shaft 2 of the present invention includes an eccentric shaft 2-2, a first flywheel 2-1, a second flywheel 2-5, a first bearing 2-3, and a second bearing 2-4. The second bearing 2-4 is arranged on both sides of the middle part of the eccentric shaft 2-2, and the roller 3 is connected to the eccentric shaft 2-2 through the second bearing 2-4. The first bearing 2-3 is arranged on the eccentric shaft 2-2 outside the second bearing 2-4. The first flywheel 2-1 is arranged at one end of the eccentric shaft 2-2, and the second flywheel 2-5 is arranged at the other end of the eccentric shaft 2-2.

[0008] As another preferred embodiment, the rotary shaft 2 of the present invention is provided with a bearing seat plate 2-31, and the bearing seat plate 2-31 is mounted on the eccentric shaft 2-2 on the rotary shaft 2 via a first bearing 2-3 on the rotary shaft 2. The bearing seat plate 2-31 is provided with a pin hole 2-32 and a threaded hole 2-33.

[0009] As another preferred embodiment, the pin hole 2-32 of the present invention is provided at the end of the bearing seat plate 2-31, and the threaded holes 2-33 are evenly distributed around the rotating shaft 2.

[0010] As another preferred embodiment, the frame 1 of the present invention includes a first side plate 1-1 and a second side plate 1-2. The upper part of the first side plate 1-1 and the upper part of the second side plate 1-2 are connected by a connecting beam 1-3. The inner front part of the first side plate 1-1 and the second side plate 1-2 is a base plate 1-31, and the outer side of the base plate 1-31 is an auxiliary plate 1-32. The base plate 1-31 is provided with a light hole 1-34 corresponding to the threaded hole 2-33 on the bearing seat plate 2-31 on the rotating shaft 2. The auxiliary plate 1-32 is provided with a pin hole 1-33 corresponding to the pin hole 2-32. The bearing seat plate 2-31 is placed between the base plate 1-31 and the auxiliary plate 1-32.

[0011] As another preferred embodiment, the rotating shaft 6 of the present invention includes a central cylinder 6-2, and the two ends of the central cylinder 6-2 are end cylinders 6-1, the diameter of the end cylinders 6-1 being smaller than the diameter of the central cylinder 6-2.

[0012] As another preferred embodiment, the first side plate 1-1 is provided with a first connecting section 1-11 on the upper part, and the second side plate 1-2 is provided with a second connecting section 1-12 on the upper part. The first connecting section 1-11 and the second connecting section 1-12 are provided with holes 1-13 that are adapted to the end cylinder 6-1 of the rotating shaft 6.

[0013] As another preferred embodiment, the first connecting segment 1-11 and the second connecting segment 1-12 of the present invention are connected to the side plate of the frame 1 by bolt assembly 1-17.

[0014] As another preferred embodiment, the bolt connection holes of the first connecting segment 1-11 and the second connecting segment 1-12 to the side plate of the frame 1 are elongated holes. The lower end faces of the first connecting segment 1-11 and the second connecting segment 1-12 are connected to the upper end face of the side frame 1 by bolt assembly 1-17. A gasket 1-16 is provided between the lower end faces of the first connecting segment 1-11 and the second connecting segment 1-12 and the upper end face of the side plate of the frame 1.

[0015] As another preferred embodiment, the upper rotating body 4 of the present invention is provided with an upper wear-resistant liner 4-2 on its inner side.

[0016] As another preferred embodiment, the lower rotating body 5 of the present invention is provided with a lower wear-resistant liner 5-2 on its inner side.

[0017] As another preferred embodiment, the roller 3 of the present invention is provided with a roller wear-resistant liner 3-1.

[0018] As another preferred embodiment, the surface of the wear-resistant roller liner 3-1 of the present invention is serrated.

[0019] As another preferred embodiment, the roller 3 of the present invention has an inlet 10 between the upper part of the roller 3 near the upper rotating body 4 and the upper end of the upper rotating body 4, and an outlet 11 between the lower part of the roller 3 near the lower rotating body 5 and the lower end of the lower rotating body 5; the inlet 10 is larger than the outlet 11 and gradually transitions in an arc shape.

[0020] As another preferred embodiment, the upper wear-resistant liner 4-2 and the lower wear-resistant liner 5-2 of the present invention form an arc-shaped crushing wall.

[0021] As another preferred embodiment, the lower end of the upper rotating body 4 of the present invention is provided with an upper rotating body hole 4-3 corresponding to the middle cylinder 6-2 of the rotating shaft 6; the upper wear-resistant liner 4-2 on the upper rotating body 4 is connected to the upper rotating body 4 through an upper bolt assembly 4-4.

[0022] As another preferred embodiment, the lower rotating body 5 of the present invention is provided with a lower rotating body hole 5-1 corresponding to the middle cylinder 6-2 of the rotating shaft 6 at its upper end; the lower wear-resistant liner 5-2 on the lower rotating body 5 is connected to the lower rotating body 5 through a lower bolt assembly 5-3.

[0023] As another preferred embodiment, the upper end of the connecting rod 7 of the present invention is provided with an upper connecting rod hole 7-2 corresponding to the extension sections 4-1 on both sides of the upper end of the upper rotating body 4; the lower end of the connecting rod 7 is provided with a lower connecting rod hole 7-1 corresponding to the frame hole 1-18 at the front upper end of the frame 1.

[0024] As another preferred embodiment, the adjustment device 8 of the present invention includes a rotating shaft 8-1, a pressure rod 8-2 and an adjustment rod 8-3. The rotating shaft hole 8-13 provided in the rotating shaft 8-1 is adapted to the side plate hole 1-14 provided on the rear part of the side plate of the frame 1. The pin passes through the rotating shaft hole 8-13 and the side plate hole 1-14.

[0025] A rear convex arm 8-12 is provided on the rear side of the rotating shaft 8-1, and a lower convex arm 8-11 is provided at the lower end of the rotating shaft 8-1. The rear end of the pressure rod 8-2 is hinged to the lower convex arm 8-11 by a pin, and the front end of the pressure rod 8-2 is hinged to the lower hole 5-4 of the lower rotating body 5 by a pin. The lower end of the adjusting rod 8-3 is hinged to the rear convex arm 8-12 by a pin, and the upper end of the adjusting rod 8-3 is hinged to the hinge hole 1-15 provided at the rear end of the frame 1 by a pin.

[0026] Secondly, the connecting rod 7 described in this invention is a mechanical tie rod structure or a hydraulic cylinder tie rod structure.

[0027] In addition, the adjusting rod 8-3 of the present invention adopts a hydraulic cylinder + accumulator combination structure, or a spring rod structure, or a mechanical rod structure that will break when the load is exceeded.

[0028] The beneficial effects of this invention.

[0029] The upper rotating body 4 of this invention is rotatably connected to the rotating shaft 6 at its lower end. The upper end of the upper rotating body 4 is connected to the frame 1 by a connecting rod 7, which is a detachable or telescopic component. The gap between the upper end of the upper rotating body 4 and the roller 3 on the rotating shaft 2 serves as the equipment inlet and also as the opening of the arc-shaped crushing chamber. This structure enables the following functions: 1. When the size of the inlet needs adjustment, it can be achieved by changing the length of the connecting rod 7, resulting in low replacement cost and convenient replacement. 2. When large, difficult-to-crush materials enter, to prevent damage to the main components of the equipment, the connecting rod 7 can be made into a mechanical tie rod that breaks upon reaching a predetermined load, or a hydraulic cylinder tie rod can be used. When the pressure reaches a predetermined value, a retraction alarm is triggered, thereby enabling pre-treatment of difficult-to-crush materials. 3. When replacing the wear-resistant liners on the upper rotating body 4 and the lower rotating body 5, the connecting rod 7 can be removed, and the upper rotating body 4 can be rotated along the rotating shaft 6 at a certain angle, exposing the liners on the upper rotating body 4 and the lower rotating body 5 for easy hoisting and replacement. The disassembly of the connecting rod 7, the rotation of the upper rotating body 4 along the rotating shaft 6, and the replacement of the wear-resistant liners all require relatively small lifting weights and have similar requirements. This greatly facilitates maintenance and repair, and increases the equipment's adaptability to on-site conditions.

[0030] This invention relates to primary crushing equipment, which can replace gyratory crushers and serve as an ideal solution for primary crushing in large-scale hard rock mines. It addresses the inherent problems of current primary crushing systems using gyratory crushers. It reduces users' investment in primary crushing systems, shortens the construction period, and lowers the difficulty and operating costs of subsequent maintenance, making it a superior solution in the field of primary crushing for hard rock mines. Attached Figure Description

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The scope of protection of the present invention is not limited to the following description.

[0032] Appendix Figure 1 This is a schematic diagram of the extrusion crusher structure of the present invention.

[0033] Appendix Figure 2 This is a schematic cross-sectional view of the rotating body of the present invention.

[0034] Appendix Figure 3 This is a schematic diagram of the rotating body structure of the present invention.

[0035] Appendix Figure 4 This is a schematic diagram of the frame structure of the present invention.

[0036] Appendix Figure 5 This is a schematic diagram of the structure of the regulating device of the present invention.

[0037] Appendix Figure 6 This is a schematic diagram of the upper rotating body of the present invention.

[0038] Appendix Figure 7 This is a schematic diagram of the structure of the lower rotating body of the present invention.

[0039] Appendix Figure 8 This is a schematic diagram of the rotating shaft structure of the present invention.

[0040] Appendix Figure 9 This is a schematic diagram of the connecting rod of the present invention.

[0041] Appendix Figure 10 A schematic diagram of the pre-screening device structure for this invention.

[0042] Appendix Figure 11 This is a schematic diagram of the screening device of the present invention.

[0043] Appendix Figure 12 This is a schematic diagram of the lap frame structure of the present invention.

[0044] Appendix Figure 13 This is a schematic diagram of the screening frame of the present invention.

[0045] Appendix Figure 14 This is a schematic diagram of the auxiliary screening device of the present invention.

[0046] Appendix Figure 15 This is a schematic diagram showing the connection relationship between the screening device and the auxiliary screening device of the present invention.

[0047] Appendix Figure 16 This is a schematic diagram of the assembly of the screening device, auxiliary screening device and frame of the present invention.

[0048] Explanation of the serial numbers in the attached diagram:

[0049] Frame 1, First connecting section 1-11, Side plate hole 1-14, Hinge hole 1-15, Shim 1-16, Bolt assembly 1-17, Frame hole 1-18, Base plate 1-31, Auxiliary plate 1-32, Pin hole 1-33, Smooth hole 1-34, Rotary shaft 2, First flywheel 2-1, Eccentric shaft 2-2, First bearing 2-3, Second bearing 2-4, Second flywheel 2-5, Bearing seat plate 2-31, Pin hole 2-32, Threaded hole 2-33, Roller 3, Roller wear-resistant liner 3-1, Upper rotating body 4, Extension section 4-1, Upper wear-resistant liner 4-2, Upper rotating body hole 4-3, Upper bolt assembly 4-4, Lower rotating body 5, Lower rotating body hole 5-1, Lower wear-resistant liner 5-2, Lower bolt assembly 5-3, Lower rotating body lower hole 5-4, Rotating shaft 6 6-1 end cylinder, 6-2 middle cylinder, 7 connecting rod, 7-1 lower hole of connecting rod, 7-2 upper hole of connecting rod, 8 adjusting device, 8-1 rotating shaft, 8-2 pressure rod, 8-3 adjusting rod, 8-11 lower convex arm, 8-12 rear convex arm, 8-13 rotating shaft hole, 10 inlet, 11 outlet, 3-1-1 serrated groove, 1-22 support, 1-21 support, 30 arc-shaped crushing wall, 40 screening device, 40-1 overlapping frame, 40-2 screening frame, 40-2 screen bar, 40-11 opening groove, 40-21 snap-fit ​​frame, 40-22 screen bar, 40-31 extension bar, 40-32 hinge hole, 40-51 slot, 40-61 beam, 50 auxiliary screening device, 50 auxiliary screening rod, 50-11 support roller, 50-3 connecting arm. Detailed Implementation

[0050] like Figure 1 As shown, the present invention includes a frame 1, a rotary shaft 2, a rotatable eccentric roller 3 mounted on the rotary shaft 2, an upper rotating body 4, a lower rotating body 5, a rotating shaft 6, a connecting rod 7, and an adjustment device 8 for adjusting the eccentric load of the lower rotating body 5. The frame 1 is provided with the rotating shaft 6, the rotary shaft 2, and the adjustment device 8. The lower end of the upper rotating body 4 is connected to the upper end of the lower rotating body 5 through the rotating shaft 6. The lower part of the lower rotating body 5 is shaft-connected to the adjustment drive output end of the adjustment device 8. The upper end of the connecting rod 7 is shaft-connected to the upper end of the upper rotating body 4, and the lower end of the connecting rod 7 is shaft-connected to the frame 1. The connecting rod 7 is a detachable or telescopic component.

[0051] The rotating shaft 2 includes an eccentric shaft 2-2, a first flywheel 2-1, a second flywheel 2-5, a first bearing 2-3, and a second bearing 2-4. The second bearing 2-4 is arranged on both sides of the middle part of the eccentric shaft 2-2, and the roller 3 is connected to the eccentric shaft 2-2 through the second bearing 2-4. The first bearing 2-3 is arranged on the eccentric shaft 2-2 outside the second bearing 2-4. The first flywheel 2-1 is arranged at one end of the eccentric shaft 2-2, and the second flywheel 2-5 is arranged at the other end of the eccentric shaft 2-2.

[0052] When the eccentric shaft 2-2 rotates, the roller 3, under the positioning action of the second bearing 2-4, will rotate around the rotation center line of the eccentric shaft 2-2 with a certain eccentric distance as the radius.

[0053] All rotating components on the rotary shaft 2 share the same rotation axis (i.e., the rotation axis of the first flywheel 2-1 and the second flywheel 2-5). The belt drives the first flywheel 2-1 to rotate.

[0054] All rotating parts on the rotary shaft 2 are on the same rotary axis. Any unbalanced mass can be completely balanced by adding or removing counterweights on the first flywheel 2-1 and the second flywheel 2-5, thereby controlling the dynamic load of the equipment to a very low level and reducing the strength requirements of the foundation civil engineering.

[0055] The plane formed by the axis of the rotating shaft 6 and the axis of the rotary shaft 2, and the horizontal plane containing the axis of the rotary shaft 2, have an angle of less than 45°.

[0056] The plane formed by the axis of the rotating shaft 8-1 and the axis of the rotary shaft 2, and the horizontal plane containing the axis of the rotary shaft 2, have an angle of less than 20°.

[0057] The rotary shaft 2 is provided with a bearing seat plate 2-31. The bearing seat plate 2-31 is mounted on the eccentric shaft 2-2 on the rotary shaft 2 via the first bearing 2-3 on the rotary shaft 2. The bearing seat plate 2-31 is provided with a pin hole 2-32 and a threaded hole 2-33.

[0058] The pin hole 2-32 is located at the end of the bearing seat plate 2-31, and the threaded holes 2-33 are evenly distributed around the rotating shaft 2.

[0059] The frame 1 includes a first side plate 1-1 and a second side plate 1-2. The upper part of the first side plate 1-1 and the upper part of the second side plate 1-2 are connected by a connecting beam 1-3. The inner front part of the first side plate 1-1 and the second side plate 1-2 is a base plate 1-31, and the outer side of the base plate 1-31 is an auxiliary plate 1-32. The base plate 1-31 has a smooth hole 1-34 corresponding to the threaded hole 2-33 on the bearing seat plate 2-31 on the rotating shaft 2. The auxiliary plate 1-32 has a pin hole 1-33 corresponding to the pin hole 2-32. The bearing seat plate 2-31 is placed between the base plate 1-31 and the auxiliary plate 1-32. The bearing seat plate 2-31 and the base plate 1-31 are connected by bolts.

[0060] The number of pin holes 2-32 on each side of the bearing seat plate 2-31 on the rotating shaft 2 is the same as the number of pin holes 1-33 provided on each side plate of the frame 1. When the bearing seat plate 2-31 is placed between the base plate 1-31 and the auxiliary plate 1-32, pins are inserted for connection and fixation. Then, the bearing seat plate 2-31 and the base plate 1-31 are connected and fastened using threaded holes 2-33, smooth holes 1-34 and bolt assemblies.

[0061] The rotating shaft 6 includes a central cylinder 6-2, and two end cylinders 6-1 at both ends of the central cylinder 6-2. The diameter of the end cylinders 6-1 is smaller than the diameter of the central cylinder 6-2.

[0062] The upper rotating body 4 and the lower rotating body 5 are connected by a rotating shaft 6 to form a whole and are installed in the frame 1.

[0063] The first side plate 1-1 is provided with a first connecting section 1-11 on its upper part, and the second side plate 1-2 is provided with a second connecting section 1-12 on its upper part. The first connecting section 1-11 and the second connecting section 1-12 are provided with holes 1-13 that are adapted to the end cylinder 6-1 of the rotating shaft 6.

[0064] The first connecting section 1-11 and the second connecting section 1-12 are connected to the side plate of the frame 1 by bolt assembly 1-17.

[0065] The bolt connection holes of the first connecting segment 1-11 and the second connecting segment 1-12 to the side plate of the frame 1 are elongated holes. The lower end faces of the first connecting segment 1-11 and the second connecting segment 1-12 are connected to the upper end face of the side plate of the frame 1 by bolt assembly 1-17. A gasket 1-16 is provided between the lower end faces of the first connecting segment 1-11 and the second connecting segment 1-12 and the upper end face of the side plate of the frame 1.

[0066] The bolt holes corresponding to the bolt assembly 1-17 connecting the first connecting section 1-11, the second connecting section 1-12 and the side plate are set as elongated holes. At the same time, the gaskets at the mating surface 1-16 are added or removed to change the position of the first connecting section 1-11 and the second connecting section 1-12 relative to the first side plate 1-1 and the second side plate 1-2. This changes the position of the arc-shaped crushing wall relative to the roller wear-resistant liner 3-1, thereby changing the shape of the arc-shaped crushing chamber to adapt to the working conditions.

[0067] The upper rotating body 4 is provided with an upper wear-resistant liner 4-2 on its inner side.

[0068] The lower rotating body 5 is provided with a lower wear-resistant liner 5-2 on its inner side.

[0069] The roller 3 is provided with a roller wear-resistant liner 3-1.

[0070] The upper wear-resistant liner 4-2, the lower wear-resistant liner 5-2, and the roller wear-resistant liner 3-1 can be made of wear-resistant materials such as high manganese steel, wear-resistant alloy steel, and composite materials. They are assembled on relevant parts and can be replaced individually after wear. The vulnerable parts are small in size, easy to replace, and have low requirements for on-site lifting capacity.

[0071] The surface of the wear-resistant roller liner 3-1 is serrated.

[0072] The surface of the wear-resistant roller liner 3-1 is serrated, which easily causes bending and breakage of materials, or creates localized high compressive stress concentrations, making the material a source of cracks and facilitating breakage. The upper wear-resistant liner 4-2 and the lower wear-resistant liner 5-2 do not have serrations on their surfaces because the serrated liner on both sides can easily generate axial forces when extruding ore, thus affecting the service life of the main bearing and other components of the equipment.

[0073] The lower wear-resistant liner 5-2 on the lower rotating body 5 and the upper wear-resistant liner 4-2 on the upper rotating body 4 form an integral arc-shaped crushing wall, which together with the surface of the roller 3 on the rotating shaft 2 forms an arc-shaped crushing chamber with a large inlet and a small outlet.

[0074] When the rotary shaft 2 rotates, it drives the eccentric and rotatable roller 3 on it to rotate. The wear-resistant liner 3-1 on the roller 3 moves closer to and away from the arc-shaped crushing wall at a certain amplitude and periodically, thereby continuously squeezing the ore entering the crushing chamber.

[0075] The upper part of the roller 3 near the upper rotating body 4 is the inlet 10 between the upper part of the roller 3 and the upper end of the upper rotating body 4, and the lower part of the roller 3 near the lower rotating body 5 is the outlet 11 between the lower part of the roller 3 and the lower end of the lower rotating body 5; the inlet 10 is larger than the outlet 11 and gradually transitions in an arc shape.

[0076] like Figure 1 As shown, the inlet size 10 of the crushing chamber is the distance G between the uppermost part of the upper wear-resistant liner 4-2 and the surface of the roller wear-resistant liner 3-1, and the outlet size of the crushing chamber is the distance H between the lowermost part of the lower wear-resistant liner 5-2 and the surface of the roller wear-resistant liner 3-1.

[0077] The adjustment of the inlet dimension G can be achieved by changing the length of the connecting rod 7, which is lower in cost and more convenient to operate compared to existing technologies. Alternatively, the connecting rod 7 can be configured as a hydraulic cylinder to adjust the inlet size and simultaneously collect the precise crushing force required for crushing large materials of varying hardness entering the inlet.

[0078] The outlet size H can be adjusted by changing the length of the adjusting rod 8-3. The adjusting rod 8-3 can be a combination of a hydraulic cylinder and an accumulator to provide the crushing force required for crushing the ore. When refractory materials enter the crushing chamber, the accumulator provides rapid buffering to protect the relevant components. The retraction of the hydraulic cylinder drives the rotating shaft 8-1 to rotate, which in turn causes the pressure rod 8-2 to rotate the lower rotating body 5 along the rotating shaft 6 by a certain angle, increasing the distance H and thus discharging the refractory materials. Afterward, the extension of the hydraulic cylinder reduces the distance H, restoring the original discharge outlet size and achieving overload protection and release.

[0079] The crushing equipment of this invention has wider adaptability, smoother adjustment of the discharge port, more timely iron protection, and more convenient maintenance and repair; thus, its operating efficiency is significantly improved.

[0080] The upper wear-resistant liner 4-2 and the lower wear-resistant liner 5-2 form an arc-shaped crushing wall.

[0081] The lower end of the upper rotating body 4 is provided with an upper rotating body hole 4-3 corresponding to the middle cylinder 6-2 of the rotating shaft 6; the upper wear-resistant liner 4-2 on the upper rotating body 4 is connected to the upper rotating body 4 through the upper bolt assembly 4-4.

[0082] The lower rotating body 5 has a lower rotating body hole 5-1 at its upper end corresponding to the middle cylinder 6-2 of the rotating shaft 6; the lower wear-resistant liner 5-2 on the lower rotating body 5 is connected to the lower rotating body 5 through the lower bolt assembly 5-3.

[0083] The upper end of the connecting rod 7 is provided with an upper connecting rod hole 7-2 corresponding to the extension sections 4-1 on both sides of the upper end of the upper rotating body 4; the lower end of the connecting rod 7 is provided with a lower connecting rod hole 7-1 corresponding to the frame hole 1-18 at the front upper end of the frame 1 (the pin passes through the frame hole 1-18 and the lower connecting rod hole 7-1), and the lower end of the connecting rod 7 can rotate around the pin.

[0084] The extension section 4-1 provided on the upper rotating body 4 can be formed by a through shaft passing through the upper part of the upper rotating body 4, with a section exposed at each end. The upper rotating body 4 can be a whole or formed by multiple individual units arranged side by side.

[0085] The adjustment device 8 includes a rotating shaft 8-1, a pressure rod 8-2 and an adjustment rod 8-3. The rotating shaft hole 8-13 provided in the rotating shaft 8-1 is adapted to the side plate hole 1-14 provided on the rear part of the side plate of the frame 1. The pin passes through the rotating shaft hole 8-13 and the side plate hole 1-14.

[0086] A rear convex arm 8-12 is provided on the rear side of the rotating shaft 8-1, and a lower convex arm 8-11 is provided at the lower end of the rotating shaft 8-1. The rear end of the pressure rod 8-2 is hinged to the lower convex arm 8-11 by a pin, and the front end of the pressure rod 8-2 is hinged to the lower hole 5-4 of the lower rotating body 5 by a pin. The lower end of the adjusting rod 8-3 is hinged to the rear convex arm 8-12 by a pin, and the upper end of the adjusting rod 8-3 is hinged to the hinge hole 1-15 provided at the rear end of the frame 1 by a pin.

[0087] The lower rotating body 5 can be one or more, and the number of lower convex arms 8-11 and pressure rods 8-2 matches that number.

[0088] The lower rotating body 5 can be a single unit or composed of multiple units arranged side by side, all of which are rotatably connected to the rotating shaft 6.

[0089] The upper part of the lower rotating body 5 is rotatably connected to the rotating shaft 6, and its lower part is rotatably connected to the pressure rod 8-2. The other end of the pressure rod 8-2 is rotatably connected to the lower protruding arm 8-11 of the rotating shaft 8-1 of the adjusting device 8. The rear protruding arm 8-12 of the rotating shaft 8-1 of the adjusting device 8 is connected to the two side plates of the frame 1 through adjusting rods 8-3, and all connection points are rotatable. When the material is unevenly loaded, the lower rotating body 5 maintains a stable shape and does not tilt, relying on the torsional stiffness of the rotating shaft of the adjusting device 8, thereby stabilizing the load on the components and the crushing effect. Especially when the width of the lower rotating body 5 is large, or when multiple lower rotating bodies 5 are arranged side by side, the shape of the entire crushing chamber remains fixed, regardless of whether it is evenly loaded or unevenly loaded. In addition, when difficult-to-crush materials enter between the surface of the roller 3 on the rotating shaft 2 and the lower rotating body 5, a large load will be instantly transmitted to the adjusting rod 8-3, relying on the function of the adjusting rod 8-3 to protect the equipment in time or release the difficult-to-crush materials.

[0090] like Figure 5 As shown, an adjusting rod 8-3 can be installed on each side of the rotating shaft 8-1. There can be two adjusting rods 8-3 and two rear convex arms 8-12. One end of each adjusting rod 8-3 is rotatably connected to one of the two rear convex arms 8-12, and the other end of each adjusting rod 8-3 is rotatably connected to holes 1-15 in side plates 1-1 and 1-2, respectively. The number of lower convex arms 8-11 is the same as that of the pressure rods 8-2, and there can be two or more of them.

[0091] The rotating shaft 8-1 is rotatably connected to the frame 1. The rotating shaft hole 8-13 in the rotating shaft 8-1 is adapted to the side plate hole 1-14 on the side plate of the frame 1. It can be connected by two pins passing through them respectively; or by a long pin passing through the hole 8-13 in the rotating shaft 8-1 and the side plate hole 1-14 on the first side plate 1-1 and the second side plate 1-2.

[0092] When the equipment is large and requires a wide width, multiple upper rotating bodies 4 and lower rotating bodies 5 can be installed on the rotating shaft 6. The number of lower convex arms 8-11 and pressure rods 8-2 should correspond accordingly, reducing the weight of the large components. For example, a large lower rotating body 5 can be divided into several smaller lower rotating bodies 5, all connected to the rotating shaft 6; similarly, a large upper rotating body 4 can be divided into several smaller upper rotating bodies 4, all connected to the rotating shaft 6.

[0093] The connecting rod 7 can be configured as a mechanical tie rod structure or a hydraulic cylinder tie rod structure. Both mechanical tie rod and hydraulic cylinder tie rod structures are existing designs.

[0094] The adjusting rod 8-3 adopts a combination structure of hydraulic cylinder and accumulator.

[0095] The adjusting rod 8-3 can also be configured as a spring rod structure or a mechanical rod structure that will break when a certain load is exceeded.

[0096] Hydraulic cylinder + accumulator combination structure, spring rod structure, and mechanical rod structure that fails due to overload are all existing structures, and those skilled in the art can understand their specific construction without any doubt.

[0097] The present invention can be equipped with a screening device 40, which is mounted on the frame 1. The roller 3 and the arc-shaped crushing wall 30 form a crushing channel. The screening device 40 is located on the side of the inlet 10 of the crushing channel. The screening device 40 includes an overlapping frame 40-1 and a screening frame 40-2. The screening frame 40-2 is located on the upper end of the overlapping frame 40-1. The rear end of the overlapping frame 40-1 is hinged to the upper support 1-22 of the frame 1. The front end of the overlapping frame 40-1 overlaps the roller 3. The screening frame 40-2 is provided with screen holes.

[0098] The screening device 40 of the present invention includes an overlapping frame 40-1 and a screening frame 40-2. The screening frame 40-2 can be replaced with a suitable one according to the size of the material to be screened and the required strength of the screening frame 40-2. The equipment is highly adaptable.

[0099] The front end of the overlapping frame 40-1 of the present invention overlaps with the roller 3, so that the screening device 40 can jump with the roller 3, thereby improving the screening effect.

[0100] This invention integrates a pre-screening function within the equipment body, significantly increasing the processing capacity of the crushing equipment. This invention can replace gyratory crushers as an ideal solution for primary crushing in large-scale hard rock mines. It solves the inherent problems of current primary crushing systems using gyratory crushers. It reduces users' investment in primary crushing systems, shortens the construction period, and lowers the difficulty and operating costs of subsequent maintenance, making it a superior solution in the field of primary crushing for hard rock mines.

[0101] It also includes an auxiliary screening device 50 for the vibrating screening device 40, which significantly improves the equipment's adaptability to working conditions.

[0102] When the eccentric shaft 2-2 rotates, it drives the roller 3 to make a circular jump around the rotation center of the eccentric shaft 2-2.

[0103] The outer end section of the wear-resistant roller liner 3-1 is a sawtooth groove 3-1-1 with an arc-shaped bottom.

[0104] The wear-resistant liner 3-1 on the roller 3 of the rotating shaft 2, together with the arc-shaped crushing wall 30, forms a crushing chamber with a large inlet and a small outlet. During the rotation of the eccentric shaft 2-2, the wear-resistant liner 3-1 on it periodically approaches and moves away from the arc-shaped crushing wall 30, thereby subjecting the ore to multiple compression crushing processes from the moment it enters the crushing chamber until it is discharged from the crushing chamber.

[0105] The rear end of the overlapping frame 40-1 is hinged to the upper support 1-22 of the frame 1, so that the overlapping frame 40-1 can rotate along the hinge point.

[0106] The front end of the overlapping frame 40-1 is provided with multiple extension strips 40-31, which correspond to the serrated grooves 3-1-1 on the wear-resistant liner 3-1 of the roller 3 on the rotating shaft 2. The front ends of the extension strips 40-31 are placed in the serrated grooves 3-1-1.

[0107] The spacing between adjacent extension strips 40-31 is the spacing D of the serrated grooves 3-1-1 (e.g., Figure 2 The dimensions of the groove 3-1-1 are one or more times the number of grooves shown. When the groove 3-1-1 is designed to be large, the extension strips 40-31 are also allowed to be large and have high strength. The number of extension strips 40-31 can be reduced to less than the number of grooves. In this case, the spacing of the extension strips 40-31 is no longer equal to the spacing of the serrated groove 3-1-1, but may be twice or more than twice the groove spacing.

[0108] When screening small-sized materials, existing methods require widening the screen bars to reduce the gaps between them, which reduces the overall screen opening rate and decreases screening efficiency. Conversely, when screening large-sized materials, the screen bars need to be narrowed to increase the gaps between them, which weakens the screen bars and can even lead to bending or other malfunctions. In this invention, the spacing of the extension bars 40-31 on the overlapping frame 40-1 corresponds to the spacing of the serrated grooves 3-1-1, either one-to-one or in multiples. This allows the extension bars 40-31 to overlap within the serrated grooves 3-1-1, enabling the screening device to move with the roller 3. Furthermore, when the screen bars 40-22 are set on the screening frame 40-2, it is no longer necessary to consider matching the dimensions and spacing of the serrated grooves 3-1-1. The size and quantity only need to be designed and determined based on the size of the material to be screened and the required strength of the screen bars. For example, roller 3 has a width of 2000mm, and the serrated grooves 3-1-1 are spaced 150mm apart. The equipment requires a pre-screening aperture of 150mm. In this case, the existing finger-shaped screen bars, whose spacing needs to correspond to the grooves on the roller body, cannot achieve a spacing of 150mm (screen bar width is 0mm). Therefore, the spacing needs to be set to at least 300mm, the screen bar width is set to 150mm, the spacing is 300mm, and the gap (screen aperture) between adjacent finger-shaped screen bars is 150mm. At this time, the screen surface opening rate is 46%. Using the structure of this invention, the spacing of the screen bars 40-22 on the screening frame 40-2 no longer needs to correspond to the 150mm spacing of the serrated grooves 3-1-1. It can be determined to be 80mm based on the strength requirements of the screen bar width, and the gap (screen hole) between adjacent screen bars is 150mm. At this time, the spacing of the screen bars is 230mm, and the screen surface opening rate is 60%. Compared with the 46% of the existing technology, the opening rate is increased by 30%. The larger screen surface opening rate corresponds to higher screening efficiency and larger equipment processing capacity.

[0109] The overlapping frame 40-1 is provided with an opening slot 40-11, and beams 40-61 are provided in the middle and on both sides of the opening slot 40-11. The screening frame 40-2 is provided with a snap-fit ​​frame 40-21 corresponding to the opening slot 40-11, and the snap-fit ​​frame 40-21 is placed within the opening slot 40-11. The screening frame 40-2 is provided with a slot 40-51 corresponding to the beam 40-61. In the direction of material movement, the opening slot 40-11 engages with the snap-fit ​​frame 40-21 for positioning. In the direction of material movement, the slot 40-51 matches the beam 40-61 for positioning.

[0110] The overlapping frame 40-1 and the screening frame 40-2 are combined into one unit through the opening groove 40-11 and the snap-fit ​​frame 40-21 to form the screening device 40.

[0111] The rear portion 40-31-1 of the extension strip 40-31 is trapezoidal, the front portion 40-31-2 is rectangular, and the front cross-section 40-31-3 of the extension strip 40-31 is trapezoidal. The trapezoidal front cross-section 40-31-3 of the extension strip 40-31 adapts well to the serrated groove 3-1-1. The rectangular front portion 40-31-2 of the extension strip matches the dimensions of the serrated groove 3-1-1 and can be embedded within it. The trapezoidal rear portion 40-31-1 of the extension strip 40-31, positioned away from the serrated groove 3-1-1, is not limited by the groove's dimensions, increasing width and improving structural strength.

[0112] The rear end of the overlapping frame 40-1 is provided with a hinge hole 40-32.

[0113] Multiple screen bars 40-22 are evenly distributed on the screening frame 40-2, and the screen bars 40-22 are screen holes; the screen bars 40-22 are set in a stepped shape with progressively decreasing height along the material running direction.

[0114] It is set to a stepped shape with progressively decreasing dimensions to increase the tumbling of materials and facilitate the downward movement of fine particles through the sieve holes.

[0115] The lower middle part of the screen bar 40-22 is a vertical support plate 40-22-1. The vertical support plates 40-22-1 in the same vertical row are an integral vertical support plate, and each vertical support plate is connected by a horizontal connecting plate 40-22-2.

[0116] The auxiliary screening device 50 includes an auxiliary rotating shaft 50-1 and an auxiliary screening rod 50-2. The auxiliary rotating shaft 50-1 is rotatably mounted on the side plate of the frame 1. A support roller 50-11 is provided on the part of the auxiliary rotating shaft 50-1 located inside the frame 1. The support roller 50-11 contacts and supports the lower part of the overlapping frame 40-1 of the screening device 40.

[0117] The part of the auxiliary rotating shaft 50-1 located on the outside of the side plate of the frame 1 is connected to one end of the connecting arm 50-3. The other end of the connecting arm 50-3 is hinged to one end of the auxiliary screening rod 50-2. The other end of the auxiliary screening rod 50-2 is hinged to the support 1-21 on the outside of the side plate of the frame 1.

[0118] The auxiliary screening rod 50-2 is a mechanical spring rod, or a hydraulic spring rod composed of a hydraulic cylinder and an accumulator, or a hydraulic cylinder + excitation hydraulic system.

[0119] The hydraulic spring rod, hydraulic cylinder and accumulator combination forming the hydraulic spring rod, hydraulic cylinder + excitation hydraulic system are all existing structures, and those skilled in the art can understand the specific construction of the structure without any doubt.

[0120] Mechanical spring rod: By using a spring as damping, the difficulty of compressing the rod in the length direction is increased.

[0121] The hydraulic spring rod, which combines a hydraulic cylinder and an accumulator, connects the oil pressure chamber of the hydraulic cylinder with the accumulator to form a hydraulic spring mechanism. When the hydraulic cylinder is compressed, the oil inside it retreats into the accumulator, compressing the gas inside the accumulator. The volume of the enclosed gas decreases, the pressure increases, and it generates a reverse pushing effect on the oil, thereby increasing the thrust of the hydraulic cylinder and making the hydraulic spring rod less susceptible to compression.

[0122] Hydraulic cylinder + vibration hydraulic system refers to a hydraulic cylinder equipped with a high-frequency vibration hydraulic system. The high-frequency reversing valve controls the hydraulic cylinder to extend and retract at high frequency, thereby driving the pre-screening device to vibrate at high frequency, so that the material is screened more thoroughly.

[0123] For some low-hardness ores containing a large amount of fine particles, the auxiliary screening rod 50-2 can be configured as a hydraulic cylinder + vibrating hydraulic system. A high-frequency reversing valve controls the high-frequency extension and retraction of the hydraulic cylinder, thereby driving the pre-screening device to also vibrate at high frequency and intensity, allowing for more thorough material screening. Compared to existing screening devices that only move with the roller 3, the vibration intensity of this invention can be significantly increased and can be controlled and adjusted. This ensures that qualified materials are fully pre-screened, preventing them from entering the crushing chamber and occupying the crusher's crushing capacity, thus increasing the overall processing capacity of the equipment.

[0124] The auxiliary screening rod 50-2 is set as a mechanical spring rod, or a hydraulic spring rod composed of a hydraulic cylinder and an accumulator, as damping, so that the screening device 40 can maintain a stable vibration state with the rotating shaft 2 under material pressure.

[0125] The auxiliary screening rod 50-2 can be set as a spring rod to offset part of the weight of the overlapping frame 40-1 and the screening frame 40-2 as a whole, so that the overlapping frame 40-1, the screening frame 40-2 and the material above them vibrate with the drum 1-1 of the rotating shaft 2.

[0126] The auxiliary screening rod 50-2 can be set as a hydraulic cylinder. Through the controllable frequency and amplitude extension and retraction of the hydraulic cylinder, the overlapping frame 40-1, the screening frame 40-2 and the material above it are rotated back and forth along the support 1-22, which enhances the screening effect.

[0127] The auxiliary screening rod 50-2 is configured as a hydraulic cylinder + a specific hydraulic system. Relying on the pump valve action of the hydraulic system, the hydraulic cylinder generates extension and contraction at a predetermined frequency and amplitude, thereby causing the screening device 40 and the material on it to vibrate periodically. For minerals that are difficult to screen, high-intensity pre-screening is performed.

Claims

1. A compression crusher, comprising a frame, a rotating shaft, a rotatable, eccentrically mounted roller on the rotating shaft, an upper rotating body, a lower rotating body, a first rotating shaft, a connecting rod, and an adjusting device for adjusting the eccentric load of the lower rotating body, characterized in that... The frame is equipped with a first rotating shaft, a rotary shaft, and an adjustment device. The lower end of the upper rotating body is connected to the upper end of the lower rotating body through the first rotating shaft. The lower part of the lower rotating body is connected to the adjustment drive output end of the adjustment device. The upper end of the connecting rod is connected to the upper end of the upper rotating body, and the lower end of the connecting rod is connected to the frame shaft. The connecting rod is a detachable or telescopic component. The inlet is located between the upper part of the roller near the upper rotating body and the upper end of the upper rotating body, while the outlet is located between the lower part of the roller near the lower rotating body and the lower end of the lower rotating body; the inlet is larger than the outlet and gradually transitions in an arc shape. The upper rotating body is provided with an upper wear-resistant liner, the lower rotating body is provided with a lower wear-resistant liner, and the roller is provided with a roller wear-resistant liner. The upper and lower wear-resistant liners form an arc-shaped crushing wall. The connecting rod is a mechanical tie rod structure or a hydraulic cylinder tie rod structure; The gap between the upper end of the upper rotating body and the roller on the rotating shaft serves as the equipment inlet and the opening of the arc-shaped crushing chamber. When the size of the inlet needs to be adjusted, it is achieved by changing the length of the connecting rod. When large, difficult-to-crush materials enter, the connecting rod is made into a mechanical tie rod that breaks under a predetermined load, or a hydraulic cylinder tie rod is used. When the pressure reaches a predetermined value, a retraction alarm is triggered to achieve early treatment of difficult-to-crush materials. When replacing the wear-resistant liners on the upper and lower rotating bodies, the connecting rod is removed, and the entire upper rotating body is rotated along the first rotating shaft at a certain angle, so that the liners on the upper and lower rotating bodies are exposed. All rotating parts on the rotating shaft are on the same rotating axis, and are balanced by adding or removing counterweights on the first and second flywheels; The upper part of the lower rotating body is rotatably connected to the first rotating shaft, and its lower part is rotatably connected to the pressure rod. The other end of the pressure rod is rotatably connected to the lower convex arm of the rotating shaft of the adjusting device. The rear convex arm of the rotating shaft of the adjusting device is connected to the two side plates of the frame through adjusting rods, and all connection points are rotatable. When the material is unevenly loaded, the lower rotating body maintains a stable shape and does not tilt, relying on the torsional stiffness of the rotating shaft of the adjusting device, thus stabilizing the load on the parts and the crushing effect. Multiple lower rotating bodies are arranged side by side, and the shape of the entire crushing chamber remains fixed regardless of whether it is evenly loaded or unevenly loaded. When difficult-to-crush materials enter between the roller surface on the rotating shaft and the lower rotating body, a large load is instantly transmitted to the adjusting rod, which provides timely protection for the equipment or releases the difficult-to-crush materials. A screening device is installed on the frame. The roller and the arc-shaped crushing wall form a crushing channel. The screening device is located on the side of the inlet of the crushing channel. The screening device includes an overlapping frame and a screening frame. The screening frame is located on the upper end of the overlapping frame. The rear end of the overlapping frame is hinged to the upper support of the frame. The front end of the overlapping frame overlaps the roller. Screen holes are provided on the screening frame. The front end of the overlapping frame is provided with multiple extension strips, which correspond to the serrated grooves on the wear-resistant liner of the roller on the rotating shaft; the front end of the extension strip is placed in the serrated groove. The overlapping frame is provided with an opening slot, and beams are provided in the middle and on both sides of the opening slot. The screening frame is provided with a snap-fit ​​frame corresponding to the opening slot, and the snap-fit ​​frame is placed in the opening slot. The screening frame is provided with a slot corresponding to the beam. In the direction of material movement, the opening slot snaps into the snap-fit ​​frame for positioning. In the direction of material movement, the slot matches the beam for positioning. It also includes auxiliary screening devices for vibrating screening devices; The auxiliary screening device includes an auxiliary rotating shaft and an auxiliary screening rod. The auxiliary rotating shaft is rotatably mounted on the side plate of the frame. A support roller is provided on the part of the auxiliary rotating shaft located inside the frame. The support roller contacts and supports the lower part of the overlapping frame of the screening device. The part of the auxiliary rotating shaft located on the outside of the side plate of the frame is connected to one end of the connecting arm, the other end of the connecting arm is hinged to one end of the auxiliary screening rod, and the other end of the auxiliary screening rod is hinged to the support on the outside of the side plate of the frame.

2. The extrusion crusher according to claim 1, characterized in that... The rotary shaft includes an eccentric shaft, a first flywheel, a second flywheel, a first bearing, and a second bearing. The second bearing is provided on both sides of the middle part of the eccentric shaft, and the roller is connected to the eccentric shaft through the second bearing. The first bearing is provided on the eccentric shaft outside the second bearing. The first flywheel is provided at one end of the eccentric shaft, and the second flywheel is provided at the other end of the eccentric shaft.

3. The extrusion crusher according to claim 1, characterized in that... A bearing seat plate is provided on the rotating shaft. The bearing seat plate is mounted on the eccentric shaft on the rotating shaft through the first bearing on the rotating shaft. The bearing seat plate is provided with a first pin hole and a threaded hole.

4. The compression crusher according to claim 1, characterized in that... The frame includes a first side plate and a second side plate. The upper part of the first side plate and the upper part of the second side plate are connected by a connecting beam. The inner front part of the first side plate and the second side plate is a base plate, and the outer side of the base plate is an auxiliary plate. The base plate is provided with a smooth hole corresponding to the threaded hole on the bearing seat plate on the rotating shaft. The auxiliary plate is provided with a second pin hole corresponding to the first pin hole. The bearing seat plate is placed between the base plate and the auxiliary plate.

5. The extrusion crusher according to claim 4, characterized in that... The upper part of the first side plate is provided with a first connecting section, and the upper part of the second side plate is provided with a second connecting section. The first connecting section and the second connecting section are provided with holes that are adapted to the end cylinder of the first rotating shaft.

6. The extrusion crusher according to claim 5, characterized in that... The bolt holes of the first and second connecting sections to the side plate of the frame are elongated holes. The lower end faces of the first and second connecting sections are connected to the upper end face of the side plate of the frame by bolt assemblies. A gasket is provided between the lower end faces of the first and second connecting sections and the upper end face of the side plate of the frame.

7. The extrusion crusher according to claim 1, characterized in that... The lower end of the upper rotating body is provided with an upper rotating body hole corresponding to the middle cylinder of the first rotating shaft; the upper wear-resistant liner on the upper rotating body is connected to the upper rotating body through an upper bolt assembly; The lower rotating body has a hole at its upper end corresponding to the middle cylinder of the first rotating shaft; the lower wear-resistant liner on the lower rotating body is connected to the lower rotating body by a lower bolt assembly.

8. The extrusion crusher according to claim 1, characterized in that... The upper end of the connecting rod is provided with an upper connecting rod hole corresponding to the extension sections on both sides of the upper end of the upper rotating body; the lower end of the connecting rod is provided with a lower connecting rod hole corresponding to the frame hole at the upper front end of the frame.

9. A compression crusher according to claim 1, characterized in that... The adjustment device includes a second rotating shaft, a pressure rod, and an adjustment rod. The rotating shaft hole provided in the second rotating shaft is adapted to the side plate hole provided on the rear part of the side plate of the frame. The pin passes through the rotating shaft hole and the side plate hole. A rear convex arm is provided on the rear side of the second rotating shaft, and a lower convex arm is provided at the lower end of the second rotating shaft. The rear end of the pressure rod is hinged to the lower convex arm by a pin, and the front end of the pressure rod is hinged to the lower hole of the lower rotating body by a pin. The lower end of the adjusting rod is hinged to the rear convex arm by a pin, and the upper end of the adjusting rod is hinged to the hinge hole provided at the rear end of the frame by a pin.

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