A jaw crusher

Abstract

The jaw crusher discloses a jaw crusher and relates to the technical field of crushers.The jaw crusher comprises a crusher main body, a second belt pulley, a flywheel, a crushing cavity, a movable jaw plate, a motor, a first belt pulley, a transmission belt, a stationary jaw plate and an anti-jamming mechanism.The anti-jamming mechanism is arranged, and the motor is started to drive the movable jaw plate to reciprocatingly swing through the cooperation of the first belt pulley, the second belt pulley, the transmission belt, an eccentric shaft and the flywheel.Meanwhile, the flywheel can drive the lifting frame to reciprocatingly lift through the cooperation of a second transmission wheel, a first transmission wheel, a synchronous belt, an eccentric wheel, a linkage rod, a sleeved sliding plate, a lifting push plate, a lifting sliding shaft, a first spring and a positioning shaft.The lifting frame can effectively avoid the crusher main body from being jammed by stones through the lifting push block, and the lifting push block and the lifting frame can be individually replaced according to the wear condition, so that the stone crushing efficiency of the crusher main body is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crushers, in particular to a jaw crusher. BACKGROUND

[0002] The jaw crusher is commonly known as a jaw crusher, which is composed of two jaw plates, namely a moving jaw plate and a stationary jaw plate, to form a crushing cavity. The crusher simulates the movement of the jaws of an animal to complete the crushing of the material. The existing jaw crusher is usually used to crush stone that is difficult to transport after mining.

[0003] In the process of using the existing jaw crusher, the moving jaw plate is generally driven to reciprocate by an eccentric shaft, and the moving jaw plate cooperates with the stationary jaw plate to crush the stone. In this process, due to the irregular shape of the mined stone, large stones often hang in the interior of the jaw crusher and are in close contact with the outer wall of the stationary jaw plate without contacting the outer wall of the moving jaw plate. This causes subsequent stones of different sizes to block the feed inlet of the jaw crusher. Therefore, workers need to use hooks and other tools to pull the jammed stones to make them contact the moving jaw plate through lateral displacement for further crushing. However, since the workers are at the feed inlet of the jaw crusher during the process of pulling the stones with tools, and the stones often splash during crushing, it poses a great danger to the safety of the workers. Moreover, it is time-consuming and labor-intensive. If the jaw crusher is stopped for cleaning, it will increase the damage to the jaw crusher. In order to further improve the crushing efficiency of the jaw crusher for stone, we propose a jaw crusher. SUMMARY

[0004] The purpose of the present application is to provide a jaw crusher to further improve the crushing efficiency of the jaw crusher for stone.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a jaw crusher, comprising a crusher main body, one end of the crusher main body is provided with a second pulley, the other end of the crusher main body is provided with a flywheel, the second pulley and the flywheel are fixedly connected with an eccentric shaft which is rotationally connected with the crusher main body, a crushing cavity is formed through the top end to the bottom end of the crusher main body, a moving jaw plate is arranged in the side of the crushing cavity and is sleeved on the outer wall of the eccentric shaft, a motor is fixedly connected to the inside of one side of the crusher main body through a fixed seat, a first pulley is fixedly connected to the output end of the motor, a transmission belt is sleeved on the outer wall of the first pulley and the second pulley, a stationary jaw plate is fixedly connected to the inner wall of the side of the crushing cavity away from the moving jaw plate, and an anti-jamming mechanism is vertically arranged on one side of the crusher main body, which is used to prevent large stones from being jammed in the interior of the crusher main body.

[0006] The anti-jamming mechanism comprises a transmission assembly and a lifting assembly.

[0007] The lifting assembly is vertically arranged inside one side of the crusher body and is in sliding connection with the static jaw plate, and is used to drive the stone to rotate and displace through lifting friction.

[0008] The transmission assembly is arranged on one side of the crusher body and is used to drive the lifting assembly to reciprocatingly lift under the driving of the motor.

[0009] As a further scheme of the present application, the transmission assembly comprises:

[0010] The second transmission wheel is fixedly connected to the end of the flywheel away from the crusher body, the outer wall of the second transmission wheel is engaged with the synchronous belt, the side of the synchronous belt away from the second transmission wheel is engaged with the first transmission wheel, two eccentric wheels are symmetrically and rotatably connected to the inside of one side of the crusher body through the rotating shaft, the first transmission wheel is fixedly connected with one of the eccentric wheels through the connecting shaft penetrating into the inside of the crusher body, and the linkage rod is fixedly connected with the two eccentric wheels and is arranged on the inside of one side of the crusher body.

[0011] As a further scheme of the present application, the lifting assembly comprises:

[0012] The two sleeve sliding plates are symmetrically sleeved on the outer wall of the linkage rod, the top end of each of the two sleeve sliding plates is rotatably connected with the lifting push plate penetrating to the outside of the top end of the crusher body through the rotating shaft, the top end of the lifting push plate is fixedly connected with the lifting seat in contact with the upper surface of the crusher body, the bottom end of the lifting seat is transversely and equidistantly fixedly connected with a plurality of lifting sliding shafts in sliding connection with the crusher body, the outer wall of each of the plurality of lifting sliding shafts is sleeved with the first spring, the two ends of the first spring are in contact with the outer wall of the lifting seat and the inner wall of the crusher body respectively, the top end of the lifting seat is transversely and equidistantly integrally formed with a plurality of positioning shafts, the outer wall of each of the plurality of positioning shafts is sleeved with the lifting frame in contact with the outer wall of the static jaw plate and the lifting seat, a plurality of first bolts penetrating to the outside of the other side of the lifting frame are vertically and equidistantly arranged on the side of the lifting frame close to the static jaw plate, the outer wall of each of the plurality of first bolts is sleeved with the lifting push block in contact with the outer wall of the lifting frame, and the inner wall of the lifting push block is provided with the internal thread in thread engagement with the outer wall of the first bolt.

[0013] The top end of the lifting seat is provided with a replacement mechanism, and the replacement mechanism is used for efficiently disassembling and assembling the plurality of lifting frames.

[0014] As a further scheme of the present application, the replacement mechanism comprises:

[0015] The rotating pressing plate is connected to one side of the top end of the lifting seat through a rotating shaft, is located on one side of the plurality of positioning shafts, and is provided with a linkage sliding plate on the side away from the plurality of positioning shafts.

[0016] As a further scheme of the present application, a rotating cavity is formed in the crusher main body for the rotation of the sleeved sliding plate, eccentric wheel and linkage rod, the outer wall of the sleeved sliding plate is symmetrically formed with two limiting plates, and a straight sliding groove is formed in the crusher main body for the up-down sliding of the limiting plates and the lifting push plate.

[0017] As a further scheme of the present application, a moving sliding groove is formed in the rotating pressing plate for the up-down sliding of the linkage sliding plate, lifting sliding rod and sliding clamping block, and the outer wall of the side away from the linkage sliding plate is beveled.

[0018] As a further scheme of the present application, a limiting clamping groove is formed in one side of the bottom end of the sliding clamping block, a limiting sliding groove is formed in the lifting seat for the longitudinal sliding of the sliding clamping block, and a positioning clamping block is integrally formed in one side of the inner wall of the limiting sliding groove and matches the inner wall of the limiting clamping groove.

[0019] As a further scheme of the present application, the upper surface of the positioning shaft is hemispherical, the outer shape of the lifting frame is L-shaped, and a limiting sleeve groove is formed in the rotating pressing plate for sleeving the positioning shaft and the lifting frame.

[0020] As a further scheme of the present application, the side away from the rotating pressing plate of the linkage sliding plate is provided with a second bolt penetrating through the linkage sliding plate to the inside of the rotating pressing plate, and the inner wall of the rotating pressing plate is provided with an inner thread matching the outer thread of the second bolt.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] By setting the anti-jamming mechanism, the motor can drive the movable jaw to reciprocate through the cooperation of the first belt pulley, the second belt pulley, the transmission belt, the eccentric shaft, the flywheel, and the linkage rod, the sleeved sliding plate, the lifting push plate, the lifting sliding shaft, the first spring and the positioning shaft. The lifting seat can drive the lifting frame to reciprocate, and the lifting frame can drive the stone to be side-tilted and displaced through the friction of the lifting push block and the first bolt. In this way, the crusher main body is prevented from being jammed by stones. Then, the lifting push block and the lifting frame can be replaced according to their wear conditions, so as to further improve the stone crushing efficiency of the crusher main body. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the rotating pressure plate structure of the present invention;

[0025] Figure 3 This is a schematic cross-sectional view of the main body of the crusher of the present invention;

[0026] Figure 4 This is a schematic diagram of the connection structure between the anti-jamming mechanism and the replacement mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the rotating pressure plate of the present invention;

[0028] Figure 6 For the present invention Figure 3 A magnified schematic diagram of the structure at point A in the diagram;

[0029] Figure 7 For the present invention Figure 5 A magnified schematic diagram of the structure at point B in the diagram.

[0030] In the diagram: 1. Crusher body; 2. Anti-jamming mechanism; 201. First transmission wheel; 202. Lifting push plate; 203. Lifting seat; 204. Lifting slide shaft; 205. Positioning shaft; 206. First bolt; 207. Lifting push block; 208. Lifting frame; 209. Sleeve sliding plate; 2010. Eccentric wheel; 2011. Linkage rod; 2012. First spring; 2013. Second transmission wheel; 2014. Synchronous belt; 3. Changing mechanism; 301. Second bolt; 302. Linkage sliding plate; 303. Rotating pressure plate; 304. Lifting slide rod; 305. Sliding block; 306. Second spring; 4. First pulley; 5. Second pulley; 6. Flywheel; 7. Moving jaw plate; 8. Stationary jaw plate; 9. Transmission belt; 10. Motor; 11. Crushing chamber. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "arrangement" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments will be described below according to the overall structure of the present application.

[0033] Please refer to Figures 1-7 In the embodiments of the present application, a jaw crusher comprises a crusher main body 1, one end of the crusher main body 1 is provided with a second pulley 5, the other end of the crusher main body 1 is provided with a flywheel 6, an eccentric shaft connected with the crusher main body 1 is fixedly connected between the second pulley 5 and the flywheel 6, a crushing cavity 11 penetrating to the outside of the bottom end is formed at the top end of the crusher main body 1, a movable jaw plate 7 sleeved on the outer wall of the eccentric shaft is arranged inside the crusher main body 1 on one side of the crushing cavity 11, a motor 10 is fixedly connected inside the crusher main body 1 on one side through a fixing seat, a first pulley 4 is fixedly connected to the output end of the motor 10, a transmission belt 9 is sleeved on the outer wall of the first pulley 4 and the second pulley 5, a stationary jaw plate 8 is fixedly connected to the inner wall of the side of the crushing cavity 11 away from the movable jaw plate 7, and an anti-jamming mechanism 2 is vertically arranged on one side of the crusher main body 1, which is used to avoid that large stones are jammed in the inside of the crusher main body 1.

[0034] The anti-jamming mechanism 2 comprises: a transmission assembly, a lifting assembly.

[0035] The lifting assembly is vertically arranged inside one side of the crusher main body 1 and is connected with the stationary jaw plate 8 in sliding manner, and is used to drive the stones to rotate and displace by lifting friction.

[0036] The transmission assembly is arranged on one side of the crusher main body 1, and is used to drive the lifting assembly to reciprocatingly lift under the driving of the motor 10.

[0037] The transmission assembly comprises: a second transmission wheel 2013 fixedly connected to the flywheel 6 away from the crusher main body 1, a synchronous belt 2014 sleeved and engaged with the outer wall of the second transmission wheel 2013, a first transmission wheel 201 sleeved and engaged with the inner side of the synchronous belt 2014 away from the second transmission wheel 2013, two eccentric wheels 2010 symmetrically and rotatably connected to the inner side of one side of the crusher main body 1 through a rotating shaft, and the first transmission wheel 201 is fixedly connected with one of the eccentric wheels 2010 through a connecting shaft penetrating into the crusher main body 1, and the crusher main body 1 is provided with a linkage rod 2011 fixedly connected with the two eccentric wheels 2010 on the inner side of one side.

[0038] The lifting assembly comprises: two sleeved sliding plates 209 symmetrically sleeved on the outer wall of the linkage rod 2011, a lifting push plate 202 penetrating to the outside of the top end of the crusher main body 1 rotatably connected to the top end of each of the two sleeved sliding plates 209 through a rotating shaft, a lifting seat 203 fixedly connected to the top end of the lifting push plate 202 and in contact with the upper surface of the crusher main body 1, a plurality of lifting slide shafts 204 horizontally equidistantly fixedly connected to the bottom end of the lifting seat 203 and slidingly connected to the crusher main body 1, a first spring 2012 sleeved on the outer wall of each of the plurality of lifting slide shafts 204, the two ends of the first spring 2012 being in contact with the outer wall of the lifting seat 203 and the inner wall of the crusher main body 1 respectively, a plurality of positioning shafts 205 horizontally equidistantly integrally formed on the top end of the lifting seat 203, a lifting frame 208 sleeved on the outer wall of each of the plurality of positioning shafts 205 and in contact with the outer wall of the lifting seat 203 and the static jaw plate 8, a plurality of first bolts 206 vertically and equidistantly provided on the side of the lifting frame 208 close to the static jaw plate 8 and penetrating to the outside of the other side of the lifting frame 208, a lifting push block 207 sleeved on the outer wall of each of the plurality of first bolts 206 and in contact with the outer wall of the lifting frame 208, and an inner thread is formed in the inner wall of the lifting push block 207 and matched with the outer thread of the first bolt 206.

[0039] The top end of the lifting seat 203 is provided with a replacement mechanism 3 for efficiently disassembling and assembling the plurality of lifting frames 208.

[0040] In this embodiment: when the device is used, the motor 10 drives the first pulley 4 to rotate, at this time the second pulley 5 is driven by the transmission belt 9 under the driving of the first pulley 4, the flywheel 6 is driven to rotate by the eccentric shaft, and the moving jaw plate 7 is driven to reciprocate in the inside of the crushing cavity 11 by the eccentric shaft.

[0041] At this time, the second transmission wheel 2013 is driven to rotate by the flywheel 6, and the first transmission wheel 201 is driven to rotate by the second transmission wheel 2013 through the synchronous belt 2014, and drives an eccentric wheel 2010 through a connecting shaft, and the other eccentric wheel 2010 is driven to rotate synchronously in the inside of the crusher main body 1 through the rotating shaft by the linkage rod 2011 driven by the eccentric wheel 2010, in the process, the sleeve sliding plate 209 is pushed up along the inner wall of the crusher main body 1 by the linkage rod 2011, and the lifting push plate 202 is pushed up along the inner wall of the crusher main body 1 by the sleeve sliding plate 209 through the rotating shaft, at this time, the lifting seat 203 is separated from the upper surface of the crusher main body 1 by moving, and the lifting slide shaft 204 is driven to slide along the inner wall of the crusher main body 1 by the lifting seat 203, at this time, the first spring 2012 is always in contact with the lower surface of the lifting seat 203 by rebounding, and the lifting frame 208 is pushed up along the outer wall of the static jaw plate 8 by the positioning shaft 205 driven by the lifting seat 203, and the lifting push block 207 is synchronously lifted by the first bolt 206 driven by the lifting frame 208.

[0042] When the lifting seat 203 is driven to descend by the lifting push plate 202 and the sleeve sliding plate 209 driven by the linkage rod 2011, at this time, the lifting frame 208 drives the first bolt 206 and the lifting push block 207 to descend synchronously, and then the linkage rod 2011 is driven to rotate and displace by the eccentric wheel 2010, in the process, the lifting frame 208 rotates with the linkage rod 2011 by the lifting seat 203, and drives the lifting push block 207 to reciprocatingly ascend and descend by the first bolt 206, and then the stone to be crushed is poured into the inner cavity of the crushing cavity 11, at this time, the lifting push block 207 and the lifting frame 208 reciprocatingly ascend and descend can drive the stone to side over by friction, so as to avoid the stone being stuck in the inside of the crushing cavity 11 and not in contact with the outer wall of the moving jaw plate 7, so as to cause the crusher main body 1 to be stuck with the stone, and then the replacement mechanism 3 can replace the lifting push block 207 and the lifting frame 208 according to the wear condition, so as to further improve the crushing efficiency of the stone by the crusher main body 1.

[0043] As a preferred embodiment of the present application, the replacement mechanism 3 comprises: a rotating pressing plate 303 connected to one side of the top end of the lifting seat 203 through a rotating shaft, the rotating pressing plate 303 is located on one side of the plurality of positioning shafts 205, a linkage sliding plate 302 is arranged on the side of the rotating pressing plate 303 away from the plurality of positioning shafts 205, one side of the linkage sliding plate 302 is fixedly connected with two sliding clamping blocks 305 in a symmetrical manner, the top end of each of the two sliding clamping blocks 305 is fixedly connected with a lifting sliding rod 304, the outer wall of the lifting sliding rod 304 is sleeved with a second spring 306, the two ends of the second spring 306 are in contact with the inner wall of the rotating pressing plate 303 and the outer wall of the sliding clamping block 305 respectively, the rotating pressing plate 303 is provided with a moving sliding groove for the linkage sliding plate 302, the lifting sliding rod 304 and the sliding clamping block 305 to slide up and down, the outer wall of the side of the sliding clamping block 305 away from the linkage sliding plate 302 is inclined, the upper surface of the positioning shaft 205 is hemispherical, the shape of the lifting frame 208 is L-shaped, the rotating pressing plate 303 is provided with a limiting sleeve groove for sleeving the positioning shaft 205 and the lifting frame 208, the side of the linkage sliding plate 302 away from the rotating pressing plate 303 is provided with a second bolt 301 penetrating through the linkage sliding plate 302 to the inside of the rotating pressing plate 303, and the inner wall of the rotating pressing plate 303 is provided with an inner thread matching the outer thread of the second bolt 301.

[0044] In the embodiment, when the outer wall of the lifting pushing block 207 needs to be replaced due to serious wear, the feeding of stone into the inside of the crushing cavity 11 is stopped at this time, until there is no stone in the inside of the crushing cavity 11, the rotation of the first belt pulley 4 driven by the motor 10 is stopped, then the second bolt 301 is rotated to disengage from the inside of the rotating pressing plate 303, the linkage sliding plate 302 is pushed to move the two sliding clamping blocks 305 along the inner wall of the rotating pressing plate 303 longitudinally, at the same time, the sliding clamping block 305 pushes the lifting sliding rod 304 to slide along the inner wall of the rotating pressing plate 303 by moving, and the second spring 306 is compressed to contract, until the sliding clamping block 305 is in contact with the inner wall of one side of the lifting seat 203, the sliding clamping block 305 and the positioning clamping block can be separated from each other, then the rotating pressing plate 303 is rotated around the rotating shaft as the axis, so that the rotating pressing plate 303 releases the extrusion limiting of the lifting frame 208.

[0045] Then according to the wear condition of the lifting push block 207, the corresponding lifting frame 208 is pulled to rise, at this time, the lifting frame 208 is separated from the positioning shaft 205, and the lifting push block 207 is driven to move through the first bolt 206, so that the lifting frame 208 can be conveniently disassembled, then the first bolt 206 is rotated to be separated from the lifting push block 207, so that the plurality of lifting push blocks 207 can be disassembled one by one, and the new lifting push block 207 is threadedly connected with the first bolt 206, so that the lifting push block 207 can be conveniently replaced, then the lifting frame 208 is sleeved on the outer wall of the positioning shaft 205, and the above operation is reversed, so that the lifting frame 208 can be conveniently installed and fixed, thereby achieving the purpose of further improving the stone crushing efficiency of the crusher main body 1.

[0046] As a preferred embodiment of the application, a rotating cavity is formed in the crusher main body 1 for the rotation of the sleeving slide plate 209, the eccentric wheel 2010 and the linkage rod 2011, the outer wall of the sleeving slide plate 209 is symmetrically formed with two limiting plates, and the crusher main body 1 is provided with a straight sliding slot for the up-down sliding of the limiting plate and the lifting push plate 202.

[0047] In the embodiment, through the cooperation of the two limiting plates and the straight sliding slot, the lifting push plate 202 is lifted along the inner wall of the crusher main body 1 under the pushing of the sleeving slide plate 209 through the rotating shaft.

[0048] As a preferred embodiment of the application, a limiting clamping groove is formed in one side of the bottom end of the sliding clamping block 305, a limiting sliding slot is formed in the lifting seat 203 for the longitudinal sliding of the sliding clamping block 305, and a positioning clamping block is integrally formed on one side of the inner wall of the limiting sliding slot and matches the inner wall of the limiting clamping groove.

[0049] In the embodiment, through the cooperation of the limiting clamping groove and the positioning clamping block, the rotating pressing plate 303 is clamped and connected to the lifting seat 203 through the sliding clamping block 305, so as to facilitate the extrusion and fixation of the plurality of lifting frames 208 by the rotating pressing plate 303.

[0050] The working principle of the application is as follows: when the device is used, the motor 10 is started to drive the first pulley 4 to rotate, at this time, the second pulley 5 is driven by the transmission belt 9 under the driving of the first pulley 4, the flywheel 6 is driven to rotate through the eccentric shaft, and the movable jaw plate 7 is driven to reciprocate in the inside of the crushing cavity 11 under the driving of the eccentric shaft.

[0051] At this time, the second transmission wheel 2013 rotates under the drive of the flywheel 6, and the first transmission wheel 201 rotates under the drive of the second transmission wheel 2013 through the synchronous belt 2014, drives an eccentric wheel 2010 through the connecting shaft, and rotates under the drive of the other eccentric wheel 2010 through the linkage rod 2011, synchronously rotates inside the crusher main body 1 through the rotating shaft, and in the process, the sleeve sliding plate 209 is pushed by the linkage rod 2011, rises along the inner wall of the crusher main body 1 through the limiting plate, and the lifting push plate 202 is pushed by the sleeve sliding plate 209, rises along the inner wall of the crusher main body 1 through the rotating shaft, and pushes the lifting seat 203 to rise, at this time, the lifting seat 203 is separated from the upper surface of the crusher main body 1 through the movement, and the lifting slide shaft 204 slides along the inner wall of the crusher main body 1 under the drive of the lifting seat 203, at this time, the first spring 2012 is always in contact with the lower surface of the lifting seat 203 through the rebound, and the lifting frame 208 rises along the outer wall of the static jaw plate 8 under the drive of the lifting seat 203 through the positioning shaft 205, and the lifting push block 207 synchronously rises under the drive of the lifting frame 208 through the first bolt 206.

[0052] When the lifting seat 203 is lowered under the drive of the linkage rod 2011 through the lifting push plate 202 and the sleeve sliding plate 209, at this time, the lifting frame 208 drives the first bolt 206 and the lifting push block 207 to synchronously descend, and then the linkage rod 2011 rotates and displaces under the drive of the eccentric wheel 2010, in the process, the lifting frame 208 rotates with the linkage rod 2011 through the lifting seat 203, drives the lifting push block 207 to reciprocatingly rise and fall through the first bolt 206, and then the stone to be crushed is poured into the inner cavity of the crushing cavity 11, at this time, the lifting push block 207 and the lifting frame 208 reciprocatingly rise and fall can drive the stone to laterally flip and displace through the friction force, so as to avoid the stone from being stuck in the crushing cavity 11 and not in contact with the outer wall of the moving jaw plate 7, so as to avoid the crusher main body 1 from being stuck with the stone.

[0053] When the outer wall of the lifting push block 207 needs to be replaced due to serious wear, at this time, the stone is stopped from being fed into the crushing cavity 11 until there is no stone in the crushing cavity 11, the motor 10 is stopped from driving the first pulley 4 to rotate, then the second bolt 301 is rotated to disengage from the inside of the rotating pressing plate 303, the linkage sliding plate 302 is pushed to make the two sliding clamping blocks 305 move longitudinally along the inner wall of the rotating pressing plate 303, the sliding clamping block 305 is pushed to slide along the inner wall of the rotating pressing plate 303 through the lifting slide rod 304 and is squeezed to contract the second spring 306, until the sliding clamping block 305 is in contact with the inner wall of one side of the lifting seat 203, the sliding clamping block 305 and the positioning clamping block are separated from each other, then the rotating pressing plate 303 is pulled to rotate around the rotating shaft, so that the rotating pressing plate 303 releases the extrusion and positioning of the lifting frame 208.

[0054] Then according to the wear of the lifting push block 207, pull the corresponding lifting frame 208 to rise, at this time the lifting frame 208 and the positioning shaft 205 are separated from each other, and the lifting push block 207 is moved through the first bolt 206, the separate lifting frame 208 can be conveniently disassembled, then the first bolt 206 is rotated and separated from the lifting push block 207, the multiple lifting push blocks 207 can be disassembled one by one, and the new lifting push block 207 is threadedly connected with the first bolt 206, the lifting push block 207 can be conveniently replaced, then the lifting frame 208 is sleeved on the outer wall of the positioning shaft 205, and the above operation is reversed, the lifting frame 208 can be conveniently installed and fixed, so that the purpose of further improving the stone crushing efficiency of the crusher main body 1 is realized.

[0055] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes within the technical range disclosed in the present application according to the technical solution and inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A jaw crusher, comprising a crusher body (1), wherein a second pulley (5) is provided at one end of the crusher body (1), and a flywheel (6) is provided at the other end of the crusher body (1), wherein an eccentric shaft rotatably connected to the crusher body (1) is fixedly connected between the second pulley (5) and the flywheel (6), wherein a crushing chamber (11) extending from the top end of the crusher body (1) to the outside of the bottom end is provided, wherein a movable jaw plate (7) sleeved on the outer wall of the eccentric shaft is provided inside one side of the crusher body (1) located in the crushing chamber (11), wherein a motor (10) is fixedly connected to one side of the crusher body (1) via a fixed seat, wherein a first pulley (4) is fixedly connected to the output end of the motor (10), wherein a transmission belt (9) is sleeved on the outer wall of the first pulley (4) and the second pulley (5), and a stationary jaw plate (8) is fixedly connected to the inner wall of the crushing chamber (11) away from the movable jaw plate (7), characterized in that, An anti-jamming mechanism (2) is vertically installed on one side of the crusher body (1). The anti-jamming mechanism (2) is used to prevent large stones from getting stuck inside the crusher body (1). The anti-jamming mechanism (2) includes: a transmission assembly and a lifting assembly; The lifting assembly, which is vertically installed inside one side of the crusher body (1) and slidably connected to the stationary jaw plate (8), is used to drive the stone to rotate and move by lifting friction. A transmission assembly located on one side of the crusher body (1) is used to drive the lifting assembly to reciprocate up and down under the drive of the motor (10); The transmission assembly includes: A second transmission wheel (2013) is fixedly connected to the flywheel (6) at the end away from the crusher body (1). A synchronous belt (2014) is meshed and sleeved on the outer wall of the second transmission wheel (2013). A first transmission wheel (201) is meshed and sleeved on the side of the synchronous belt (2014) away from the second transmission wheel (2013). Two eccentric wheels (2010) are symmetrically connected to one side of the crusher body (1) through a rotating shaft. The first transmission wheel (201) is fixedly connected to one eccentric wheel (2010) through a connecting shaft that penetrates into the crusher body (1). A linkage rod (2011) is fixedly connected to the two eccentric wheels (2010) on one side of the crusher body (1). The lifting assembly includes: Two symmetrically fitted sliding plates (209) are attached to the outer wall of the linkage rod (2011). The top ends of the two sliding plates (209) are rotatably connected to a lifting push plate (202) that extends to the outside of the top of the crusher body (1) via a rotating shaft. The top end of the lifting push plate (202) is fixedly connected to a lifting seat (203) that contacts the upper surface of the crusher body (1). The bottom end of the lifting seat (203) is horizontally and equidistantly fixedly connected to multiple lifting slide shafts (204) that slide vertically and vertically with the crusher body (1). The outer walls of the multiple lifting slide shafts (204) are fitted with first springs (2012). The two ends of the first springs (2012) are respectively connected to the outer wall of the lifting seat (203) and the crusher body (1). The inner wall of the crusher body (1) is in contact with the lifting seat (203). Multiple positioning shafts (205) are integrally formed at equal intervals in the horizontal direction at the top of the lifting seat (203). The outer walls of the multiple positioning shafts (205) are all sleeved with lifting frames (208) that are in contact with the static jaw plate (8) and the outer wall of the lifting seat (203). Multiple first bolts (206) are vertically and equally spaced on the side of the lifting frame (208) that penetrate to the outside of the other side of the lifting frame (208). The outer walls of the multiple first bolts (206) are all sleeved with lifting push blocks (207) that are in contact with the outer wall of the lifting frame (208). The inner wall of the lifting push block (207) is provided with an internal thread that matches the thread of the outer wall of the first bolt (206). The top of the lifting seat (203) is provided with a replacement mechanism (3), which is used to efficiently disassemble and assemble multiple lifting frames (208).

2. A jaw crusher according to claim 1, characterized in that, The replacement mechanism (3) includes: A rotating pressure plate (303) is rotatably connected to one side of the top of the lifting seat (203) via a rotating shaft. The rotating pressure plate (303) is located on one side of multiple positioning shafts (205). A linkage slide plate (302) is provided on the side of the rotating pressure plate (303) away from the multiple positioning shafts (205). Two sliding blocks (305) are symmetrically fixedly connected to one side of the linkage slide plate (302). A lifting slide rod (304) is fixedly connected to the top of each of the two sliding blocks (305). A second spring (306) is sleeved on the outer wall of the lifting slide rod (304). The two ends of the second spring (306) are in contact with the inner wall of the rotating pressure plate (303) and the outer wall of the sliding block (305), respectively.

3. A jaw crusher according to claim 1, characterized in that, The crusher body (1) has a rotating cavity for rotating the connecting slide plate (209), eccentric wheel (2010), and linkage rod (2011). The outer wall of the connecting slide plate (209) is symmetrically formed with two limiting plates. The crusher body (1) has a linear sliding groove for sliding the limiting plates and lifting push plate (202) up and down.

4. A jaw crusher according to claim 2, characterized in that, The rotating pressure plate (303) is provided with a movable groove for the linkage slide plate (302), the lifting slide rod (304) and the sliding block (305) to slide up and down. The outer wall of the sliding block (305) away from the linkage slide plate (302) is inclined.

5. A jaw crusher according to claim 2, characterized in that, A limiting slot is provided on one side of the bottom end of the sliding block (305), and a limiting groove is provided on the lifting seat (203) for the sliding block (305) to slide longitudinally. A positioning block that matches the inner wall of the limiting groove is integrally formed on one side of the inner wall of the limiting groove.

6. A jaw crusher according to claim 2, characterized in that, The upper surface of the positioning shaft (205) is hemispherical, the shape of the lifting frame (208) is L-shaped, and the rotating pressure plate (303) is provided with a limiting sleeve groove for fitting the positioning shaft (205) and the lifting frame (208).

7. A jaw crusher according to claim 2, characterized in that, The linkage slide plate (302) is provided with a second bolt (301) on the side away from the rotating pressure plate (303) that penetrates the linkage slide plate (302) to the interior of the rotating pressure plate (303). The inner wall of the rotating pressure plate (303) is provided with an internal thread that matches the outer thread of the second bolt (301).

Images