Iron ore crusher

Abstract

The utility model relates to an iron ore crusher, and belongs to the technical field of iron ore processing equipment. The device comprises a rack, a fixed jaw plate, a movable jaw plate, a driving mechanism and a pushing assembly, wherein the fixed jaw plate is fixedly connected with the rack; the movable jaw plate and the fixed jaw plate are oppositely arranged, a crushing space is formed between the jaw plate and the fixed jaw plate, and the movable jaw plate is matched with the fixed jaw plate and used for crushing iron ore; the driving mechanism is arranged on the rack, the driving mechanism is in transmission connection with the movable jaw plate, and the driving mechanism is used for driving the movable jaw plate to move so that the movable jaw plate can be matched with the fixed jaw plate to crush iron ore; the pushing assembly comprises a jacking part, the fixed end of the jacking part is connected with the rack, the telescopic end of the jacking part can stretch into the crushing space, and the telescopic end of the jacking part stretches upwards in an inclined mode. The iron ore crushing device has the effect of solving the problem that iron ore is easily clamped in the crushing space.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of iron ore processing equipment, in particular to an iron ore crusher. BACKGROUND

[0002] The iron ore crusher is one of the indispensable important equipment in the process of mining and processing. With the continuous development of industrial production, the application range of the iron ore crusher is continuously expanding, and its performance and efficiency are directly related to the cost control and product quality of the entire production process.

[0003] At present, the traditional iron ore crusher mainly drives the moving jaw plate to move through the driving mechanism, so that the moving jaw plate and the fixed jaw plate interact to realize the crushing of the ore. This design is simple and reliable, and shows good stability and durability in actual application.

[0004] However, in actual use, especially when processing large ore blocks, due to the irregular shape and hardness difference of the ore, the phenomenon of iron ore being stuck in the crushing space often occurs, which causes the equipment to stop for maintenance and seriously affects the production efficiency. Therefore, how to effectively reduce the risk of the stone being stuck in the crushing space has become a technical problem to be solved.

[0005] In the above related technology, the iron ore is prone to be stuck in the crushing space. CONTENT OF THE INVENTION

[0006] In order to improve the problem that the iron ore is prone to be stuck in the crushing space, the present application provides an iron ore crusher.

[0007] The iron ore crusher provided by the present application adopts the following technical scheme:

[0008] An iron ore crusher comprises: a rack; a fixed jaw plate fixedly connected to the rack; a moving jaw plate oppositely arranged with the fixed jaw plate, a crushing space formed between the jaw plate and the fixed jaw plate, the moving jaw plate cooperating with the fixed jaw plate for crushing iron ore; a driving mechanism provided on the rack, the driving mechanism drivingly connected to the moving jaw plate, the driving mechanism driving the moving jaw plate to move so as to enable the moving jaw plate to cooperate with the fixed jaw plate to crush the iron ore; and a pushing assembly comprising a jacking member, the fixed end of the jacking member connected to the rack, the telescopic end of the jacking member capable of extending into the crushing space, and the telescopic end of the jacking member telescoping upwardly and obliquely.

[0009] By adopting the above technical scheme, the stone can be effectively prevented from being stuck in the crushing space; the telescopic end of the jacking member extends obliquely upwardly into the crushing space, and when the stone is stuck, the jacking member can lift the stuck stone, so as to make it escape from the stuck state, thereby ensuring the smooth progress of the crushing process.

[0010] Optionally, the pushing assembly comprises a pushing member, the pushing member is arranged above the jacking member, a fixed end of the pushing member is connected to the rack, and a telescopic end of the pushing member can extend into the crushing space and horizontally telescopically extend.

[0011] By adopting the above technical scheme, when the stone is stuck in the crushing space, the pushing member can horizontally extend into the crushing space to push the stuck stone from the side, thereby effectively reducing the risk of stone being stuck, improving the crushing efficiency and the stability of the equipment operation.

[0012] Optionally, an included angle between a telescopic direction of the telescopic end of the jacking member and a telescopic direction of the telescopic end of the pushing member is greater than 0° and less than 60°.

[0013] By adopting the above technical scheme, the included angle between the telescopic direction of the telescopic end of the jacking member and the telescopic direction of the telescopic end of the pushing member is greater than 0° and less than 60°, which can effectively avoid the stone being stuck in the crushing space. Specifically, the angle design enables the jacking member and the pushing member to work cooperatively and apply force from different directions, thereby reducing the risk of the stone being stuck due to force from a single direction, improving the crushing efficiency and the stability of the equipment operation.

[0014] Optionally, an end of the telescopic end of the jacking member is a flat surface, and an end of the telescopic end of the pushing member is a flat surface.

[0015] By adopting the above technical scheme, the flat surface design of the end of the telescopic end of the jacking member and the flat surface design of the end of the telescopic end of the pushing member enable the jacking member and the pushing member to more stably contact the stone when extending into the crushing space, thereby effectively improving the pushing efficiency and reducing the risk of the stone being stuck in the crushing space.

[0016] Optionally, the end of the telescopic end of the jacking member and the end of the telescopic end of the pushing member are both provided with a non-slip pad.

[0017] By adopting the above technical scheme, the end of the telescopic end of the jacking member and the end of the telescopic end of the pushing member are both provided with a non-slip pad, which can effectively increase the friction force of the contact surface with the stone, prevent the jacking member and the pushing member from slipping when pushing the stone, thereby improving the pushing efficiency and reducing the risk of the stone being stuck in the crushing space.

[0018] Optionally, the non-slip pad is detachably connected.

[0019] By adopting the above technical scheme, the detachable connection design of the non-slip pad enables the non-slip pad to be conveniently replaced and maintained, thereby ensuring that the non-slip pad maintains good non-slip performance for a long time and further improving the working stability and reliability of the pushing assembly.

[0020] Optionally, a dust suction assembly is arranged above the pushing member.

[0021] By adopting the above technical solution, the dust suction assembly is arranged above the pushing member, which can timely absorb the dust generated in the crushing process, improve the working environment, and protect the health of the operator.

[0022] Optionally, the dust suction assembly comprises a dust suction pipeline and a dust suction driving member, the dust suction driving member is connected to the rack, a first end of the dust suction pipeline is communicated with the dust suction driving member, and a second end of the dust suction pipeline is communicated with the crushing space to enable the dust in the crushing space to be sucked.

[0023] By adopting the above technical solution, the dust suction assembly can effectively reduce the dust flying in the crushing process, improve the working environment, and protect the health of the operator; at the same time, the arrangement of the dust suction assembly helps to improve the cleanliness of the equipment and prolong the service life of the equipment. Specifically, the design of the dust suction pipeline and the dust suction driving member enables the dust to be timely sucked and discharged, avoiding the accumulation of dust in the crushing space, thereby reducing the risk of equipment failure caused by excessive dust.

[0024] Optionally, the dust suction assembly comprises a filter screen, the rack is provided with a dust suction hole, the second end of the dust suction pipeline is connected to the dust suction hole, and the filter screen is arranged at the second end of the dust suction pipeline.

[0025] By adopting the above technical solution, the dust suction assembly can effectively reduce the dust pollution generated in the crushing process and improve the quality of the working environment; the arrangement of the filter screen can block larger particulate matters from entering the dust suction system, prevent clogging, and prolong the service life of the dust suction system.

[0026] Optionally, the filter screen is detachably connected to the dust suction pipeline.

[0027] By adopting the above technical solution, the filter screen can be conveniently replaced and cleaned, thereby ensuring the long-term effective operation of the dust suction assembly, improving the maintenance efficiency of the equipment, and reducing the downtime.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The jacking member of the pushing assembly can be tilted and extended upward in the crushing space, effectively avoiding the large ore from being stuck in the crushing space, and improving the stability of the equipment operation;

[0030] 2. The cooperation between the moving jaw plate and the fixed jaw plate is more compact, and the ore crushing is more efficient through the driving of the driving mechanism, reducing the occurrence of the jamming phenomenon;

[0031] 3. The design of the pushing assembly increases the flexibility of the crusher, so that different shapes and sizes of ores can smoothly pass through the crushing space, reducing the failure rate of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a schematic view of an iron ore crusher of an embodiment of the present application.

[0033] Figure 2 is a top view of an iron ore crusher of an embodiment of the present application.

[0034] Figure 3 is a sectional view at A-A in Figure 2

[0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] 1, frame; 11, crushing space; 2, fixed jaw plate; 3, movable jaw plate; 4, driving mechanism; 411, pulley; 412, flywheel; 42, rotating shaft; 43, cam; 44, support frame; 45, pull rod; 46, movable rod; 47, buffer; 48, sliding block; 49, sliding rail; 5, pushing assembly; 51, jacking member; 52, pushing member; 53, non-slip pad; 6, dust suction assembly; 61, dust suction pipeline; 62, dust suction driving member; 63, filter screen. DETAILED DESCRIPTION

[0037] The following will be described in detail below with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 3 The present application will be described in further detail. In the present embodiment, unless specifically defined and limited, “connection”, “connection” and “fixing” are understood in a broad sense, including fixed connection, detachable connection, connection forming an integral structure, mechanical connection, electrical connection, direct connection, indirect connection through intermediaries, internal connection and interaction between two elements, which can be understood according to the specific circumstances.

[0038] In the present application, unless specifically defined and limited, the first feature is “on” or “under” the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature therebetween. Moreover, in the description of the present embodiment, the terms “up”, “down”, “left”, “right” and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise stated, the orientation words such as “inner” and “outer” used in the present application refer to the contour of the corresponding parts.

[0039] As Figure 1 , Figure 2 and​Figure 3 As shown in the specification, the embodiments of the present application disclose an iron ore crusher (hereinafter referred to as "crusher"). The crusher includes a rack 1, a fixed jaw plate 2, a movable jaw plate 3, a driving mechanism 4 and a pushing assembly 5.

[0040] Wherein, the fixed jaw plate 2 is fixedly connected with the rack 1, the movable jaw plate 3 is oppositely arranged with the fixed jaw plate 2, and a crushing space 11 is formed between the two. The movable jaw plate 3 cooperates with the fixed jaw plate 2 for crushing iron ore. The driving mechanism 4 is arranged on the rack 1 and is drivingly connected with the movable jaw plate 3, so as to drive the movable jaw plate 3 to move and cooperate with the fixed jaw plate 2 to crush the iron ore. The pushing assembly 5 includes a jacking member 51, the fixed end of the jacking member 51 is connected with the rack 1, and the telescopic end can extend into the crushing space 11. The telescopic end of the jacking member 51 is inclined upward, which effectively reduces the risk of the stone being stuck in the crushing space 11. This is because the inclined upward telescopic jacking member 51 can effectively push out the stone stuck in the crushing space 11, avoiding equipment downtime for maintenance due to jamming.

[0041] As shown in the specification, Figure 1 , Figure 2 and Figure 3 , specifically, the jacking member 51 includes two forms of hydraulic cylinder and air cylinder. The piston rod of the hydraulic cylinder serves as the telescopic end, which can realize telescopic action through the pressure of hydraulic oil, has a large thrust, and is suitable for crushing large ore. The piston rod of the air cylinder serves as the telescopic end, which can realize telescopic action through compressed air, has the characteristics of fast response, and is suitable for occasions that need to frequently adjust the crushing parameters. The end of the telescopic end of the jacking member 51 is a plane, which can increase the contact area with the stone, thereby improving the ejection effect. The telescopic end of the jacking member 51 can also be provided with a non-slip pad 53, which can be made of rubber or nylon material and has a high friction coefficient to prevent the stone from slipping off. The non-slip pad 53 is detachably connected, which is convenient for replacement and maintenance.

[0042] The fixed end of the pushing assembly 5 is connected with the rack 1 through bolts, which ensures its stability. The contact surface between the telescopic end of the jacking member 51 and the crushing space 11 is at an inclined angle, which can be adjusted according to actual needs, generally 30°-45°, to ensure the ejection effect while reducing the impact on the crushing space 11. The fixed end of the jacking member 51 can also be provided with a buffer device, such as a spring or a shock absorber, to reduce the impact force generated during the jacking process and prolong the service life of the equipment. By setting the pushing assembly 5, especially the inclined upward telescopic jacking member 51, the stone stuck in the crushing space 11 can be effectively pushed out, avoiding equipment downtime for maintenance due to jamming. The various forms of the jacking member 51 (hydraulic cylinder and air cylinder) can adapt to different application scenarios, and the design of the non-slip pad 53 increases the reliability of the ejection effect.

[0043] As shown in the specification, Figure 1 , Figure 2 andFigure 3 As shown, the moving jaw plate 3 is made of steel plate, and the surface is hardened to improve wear resistance and impact resistance. The shape of the moving jaw plate 3 can be optimized according to the characteristics of the ore, such as adopting a wave shape or a zigzag shape to increase the crushing efficiency. The distance between the moving jaw plate 3 and the fixed jaw plate 2 can be adjusted by adjusting the screw rod to adapt to different particle sizes of the ore. The motion trajectory of the moving jaw plate 3 can be designed as linear reciprocating motion, swinging motion or other forms to achieve different crushing effects.

[0044] The driving mechanism 4 includes two driving forms of electric motor and hydraulic motor. The hydraulic motor is driven by hydraulic oil, which has larger torque and lower noise. Specifically, taking the electric motor as an example, the driving mechanism 4 includes a belt pulley 411, a flywheel 412, a rotating shaft 42 and a cam 43. The electric motor drives the belt pulley 411 through a speed reducer and a transmission belt. The rotating shaft 42 is connected to the belt pulley 411 and the flywheel 412, so that the rotating shaft 42 can be driven to rotate by the belt pulley 411. The cam 43 is sleeved on the rotating shaft 42, so that the cam 43 rotates. The upper end of the moving jaw plate 3 is in rotating cooperation with the cam 43, so that the moving jaw plate 3 can be driven to move. The driving mechanism 4 further includes a support frame 44, a pull rod 45, a movable rod 46, a buffer 47, a sliding block 48 and a sliding rail 49. The support frame 44 is connected to the rack 1. The first end of the pull rod 45 is movably connected to the moving jaw plate 3, and the second end is movably connected to the support frame 44. The second end of the pull rod 45 is sleeved with a first spring and screwed with a nut. One end of the first spring abuts against the rack 1, and the other end is connected to the pull rod 45 to reset the pull rod 45 through the first spring. The length of the pull rod 45 in the rack 1 is adjusted by the nut. The support frame 44 has a sliding rail 49. The sliding block 48 is slidably connected to the sliding rail 49. A first spring is arranged between the sliding block 48 and the support frame 44 to reset the sliding block 48. One end of the movable rod 46 is hinged to the moving jaw plate 3, and the other end is hinged to the sliding block 48. The buffer 47 can be a second spring and an extension rod. The two ends of the extension rod are hinged to the moving jaw plate 3 and the support frame 44 respectively, and the second spring is sleeved on the outer periphery of the extension rod. It can be understood that the driving mechanism 4 for driving the moving jaw plate 3 has related structures, so the structure and implementation principle are not described in detail here. The appropriate structure can be selected as needed.

[0045] As shown in Figure 1 , Figure 2 and Figure 3 , the pushing assembly 5 further includes a pushing member 52. The pushing member 52 is arranged above the jacking member 51. The fixed end of the pushing member 52 is connected to the rack 1, and the telescopic end can extend into the crushing space 11. The telescopic end of the pushing member 52 telescopes horizontally. The included angle between the telescopic direction of the telescopic end of the jacking member 51 and the telescopic direction of the telescopic end of the pushing member 52 is greater than 0° and less than 60°. This design allows the pushing assembly 5 to act in different directions at the same time, further improving the ejection effect and reducing the occurrence of jamming.

[0046] Specifically, the pushing member 52 can also adopt the form of a hydraulic cylinder or an air cylinder. The piston rod of the hydraulic cylinder serves as the telescopic end, can realize horizontal telescoping through the pressure of hydraulic oil, has a larger pushing force, and is suitable for crushing large ore blocks. The piston rod of the air cylinder serves as the telescopic end, can realize horizontal telescoping through compressed air, has the characteristics of rapid response, and is suitable for occasions where the crushing parameters need to be frequently adjusted. The telescopic end of the pushing member 52 is a flat surface, which can increase the contact area with the stone blocks, thereby improving the pushing effect. The telescopic end of the pushing member 52 can also be provided with a non-slip pad 53, which can be made of rubber or nylon material and has a high friction coefficient to prevent the stone blocks from slipping off. The non-slip pad 53 is detachably connected, facilitating replacement and maintenance.

[0047] As shown in Figure 1 , Figure 2 and Figure 3 , the fixed ends of the jacking member 51 and the pushing member 52 are connected to the rack 1 through bolts, ensuring their stability. By providing the pushing assembly 5, especially the combined use of the jacking member 51 and the pushing member 52, the stone blocks stuck in the crushing space 11 can be simultaneously acted on from different directions, further improving the ejection effect and reducing the occurrence of jamming. The various forms (hydraulic cylinder and air cylinder) of the jacking member 51 and the pushing member 52 can adapt to different application scenarios, and the design of the non-slip pad 53 increases the reliability of the ejection effect.

[0048] The crusher also includes a dust suction assembly 6 arranged above the pushing member 52. The dust suction assembly 6 includes a dust suction pipeline 61 and a dust suction driving member 62. The dust suction driving member 62 is connected to the rack 1, and the first end of the dust suction pipeline 61 is communicated with the dust suction driving member 62, and the second end is communicated with the crushing space 11, so as to suck the dust in the crushing space 11, effectively reducing the dust pollution generated in the crushing process and improving the working environment.

[0049] As shown in Figure 1 , Figure 2 and Figure 3 , specifically, the dust suction driving member 62 can adopt the form of a fan or a vacuum pump. The fan generates negative pressure through high-speed rotation to suck the dust in the crushing space 11 into the dust suction pipeline 61. The vacuum pump generates negative pressure through vacuum pumping, has higher dust suction efficiency, and is suitable for high-dust-concentration working conditions. The dust suction pipeline 61 can adopt a metal pipe or a hose. The metal pipe has high strength and corrosion resistance, and is suitable for harsh working environments. The hose has good flexibility and plasticity, facilitating installation and adjustment. The second end of the dust suction pipeline 61 is connected to the dust suction hole on the rack 1, and the position of the dust suction hole can be adjusted according to actual needs to ensure the best dust suction effect.

[0050] The dust suction assembly 6 further comprises a filter screen 63 arranged at the second end of the dust suction pipeline 61, which can effectively intercept large-particle impurities and prevent them from entering the dust suction driving member 62, thereby affecting the normal operation of the equipment. The filter screen 63 can be made of stainless steel wire mesh or multi-layer filter cloth, which has high filtering precision and long service life. The filter screen 63 is detachably connected with the dust suction pipeline 61, which is convenient for cleaning and replacement. By arranging the dust suction assembly 6, dust pollution generated during the crushing process can be effectively reduced, and the working environment can be improved. Various forms of the dust suction driving member 62 and the dust suction pipeline 61 can adapt to different application scenarios, and the design of the filter screen 63 can effectively intercept large-particle impurities and prevent them from entering the dust suction driving member 62, thereby affecting the normal operation of the equipment.

[0051] As shown in Figure 1 , Figure 2 and Figure 3 , the jacking assembly 5 further comprises auxiliary support members arranged at the lower side of the jacking member 51 and the lower side of the pushing member 52, which are used to support and stabilize the jacking member 51 and the pushing member 52. This design can further improve the stability and reliability of the jacking assembly 5 and reduce the equipment failure rate. Specifically, the auxiliary support members can be made of metal brackets or composite material brackets. The metal brackets have high strength and rigidity, which are suitable for heavy load working conditions. The composite material brackets have good lightweight and corrosion resistance, which are suitable for light load working conditions. The two ends of the auxiliary support members are connected with the jacking member 51 and the pushing member 52 respectively, which ensures their stability. The middle part of the auxiliary support members can be provided with reinforcing ribs to increase the structural strength and reduce the risk of deformation.

[0052] The auxiliary support can also be provided with sensors, such as pressure sensors and displacement sensors, for monitoring the operating state of the jacking member 51 and the pushing member 52. The pressure sensors can detect the stress of the jacking member 51 and the pushing member 52 and timely feedback abnormal signals. The displacement sensors can detect the extension distance of the jacking member 51 and the pushing member 52, ensuring accurate action. The data of the sensors can be transmitted to the control center through the wireless communication module, realizing real-time monitoring and remote diagnosis. By setting the auxiliary support, the stability and reliability of the pushing assembly 5 can be further improved, and the equipment failure rate can be reduced. The various forms of auxiliary support can adapt to different application scenarios, and the design of sensors can monitor the operating state of the pushing assembly 5 in real time, ensuring the safe operation of the equipment. The crusher also includes a cooling system, which is arranged inside the rack 1 and is used to cool the driving mechanism 4 and the pushing assembly 5. This design can effectively reduce the temperature of the equipment in a high-temperature environment and prolong the service life of the equipment. Specifically, the cooling system can adopt water cooling or air cooling. The water cooling system removes heat through circulating water flow, has high cooling efficiency, and is suitable for high-temperature environments. The air cooling system cools through a fan, has low energy consumption, and is suitable for ordinary environments. The cooling pipes of the cooling system can be made of copper or aluminum, which has high thermal conductivity and corrosion resistance. The arrangement of the cooling pipes can adopt a serpentine or spiral shape to increase the heat exchange area and improve the cooling effect. The cooling system can also be provided with a temperature sensor for monitoring the temperature of the driving mechanism 4 and the pushing assembly 5. The temperature sensor can detect the temperature change of the equipment and timely feedback abnormal signals. The data of the temperature sensor can be transmitted to the control center through the wireless communication module, realizing real-time monitoring and remote diagnosis. The cooling system can also be provided with an automatic adjustment device, which automatically adjusts the operating state of the cooling system according to the feedback data of the temperature sensor, maintaining the optimal working temperature of the equipment. By setting the cooling system, the temperature of the equipment in a high-temperature environment can be effectively reduced, and the service life of the equipment can be prolonged. Various forms of cooling systems can adapt to different application scenarios, and the design of temperature sensors can monitor the temperature change of the equipment in real time, ensuring the safe operation of the equipment.

[0053] It can be understood that the crusher also includes necessary structures for connection, support, driving, positioning, limiting, sealing, and control, etc., so that the crusher can normally operate; the shape, size, material, and setting number of each part of the crusher can be determined as needed, as long as the corresponding functions can be realized.

[0054] The working principle of the iron ore crusher in the embodiment is as follows: the stone is put into the crushing space 11, the movable jaw plate 3 is driven to move by the driving mechanism 4, so as to cooperate with the fixed jaw plate 2 to realize the crushing of the stone, when the stone is stuck in the crushing space 11, the stone is moved in the crushing space 11 by at least one of the action of the tilting pushing of the jacking piece 51 and the horizontal pushing of the pushing piece 52, different forces are provided, which helps to push the stone out of the stuck position, so as to improve the reliability of the crushing of the iron ore.

[0055] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An iron ore crusher characterised in that, Include: Frame (1) ; Fixed jaw plate (2) is fixedly connected with the frame (1) ; The moving jaw plate (3) is arranged opposite to the fixed jaw plate (2), and the jaw plate and the fixed jaw plate (2) form a crushing space (11), the moving jaw plate (3) is matched with the fixed jaw plate (2), which is used for crushing iron ore; Driving mechanism (4) is arranged on the frame (1), the driving mechanism (4) is connected with the moving jaw plate (3), the driving mechanism (4) is used for driving the moving jaw plate (3) to move, so that the moving jaw plate (3) is matched with the fixed jaw plate (2) to crush iron ore; The pushing assembly (5) includes a lifting piece (51), the fixed end of the lifting piece (51) is connected with the frame (1), the telescopic end of the lifting piece (51) can be inserted into the crushing space (11), and the telescopic end of the lifting piece (51) is inclined upward.

2. The iron ore crusher of claim 1, characterized in that, The pushing assembly (5) includes a pushing piece (52), the pushing piece (52) is arranged above the lifting piece (51), the fixed end of the pushing piece (52) is connected with the frame (1), the telescopic end of the pushing piece (52) can be inserted into the crushing space (11), and the telescopic end of the pushing piece (52) is horizontally telescopic.

3. The iron ore crusher of claim 2, wherein, The angle between the telescopic direction of the telescopic end of the lifting piece (51) and the telescopic direction of the telescopic end of the pushing piece (52) is greater than 0° and less than 60°.

4. The iron ore crusher of claim 2, wherein, The end of the telescopic end of the lifting piece (51) is a plane, and the end of the telescopic end of the pushing piece (52) is a plane.

5. The iron ore crusher of claim 4, wherein, The end of the telescopic end of the lifting piece (51) and the end of the telescopic end of the pushing piece (52) are provided with anti-skid pads (53).

6. The iron ore crusher of claim 5, wherein, The anti-skid pad (53) can be detachably connected.

7. The iron ore crusher of claim 2, wherein, It also includes a dust suction assembly (6), and the dust suction assembly (6) is arranged above the pushing piece (52).

8. The iron ore crusher of claim 7, characterized in that, The dust suction assembly (6) includes a dust suction pipeline (61) and a dust suction driving piece (62), the dust suction driving piece (62) is connected with the frame (1), the first end of the dust suction pipeline (61) is communicated with the dust suction driving piece (62), and the second end of the dust suction pipeline (61) is communicated with the crushing space (11), so as to suck the dust in the crushing space (11).

9. The iron ore crusher of claim 8, wherein, The dust suction assembly (6) includes a filter screen (63), the frame (1) is provided with a dust suction hole, the second end of the dust suction pipeline (61) is connected with the dust suction hole, and the filter screen (63) is arranged at the second end of the dust suction pipeline (61).

10. The iron ore crusher of claim 9, wherein, The filter screen (63) and the dust suction pipeline (61) are detachably connected.

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