阅读说明：本技术 一种颚破防返料进料装置 (Jaw crushing and material return preventing feeding device ) 是由 王凌飞 方启怀 杨艳杰 于 2021-09-11 设计创作，主要内容包括：本发明涉及一种颚破防返料进料装置,包括壳体,壳体内开设有拨料腔,拨料腔的左上端开口且开口位置有挡板,挡板能打开或关闭开口,拨料腔内有一个转杆,转杆上固定四个拨料板,壳体上开设有矩形腔体,矩形腔体内有两交替左右滑动的第一滑块,第一滑块上有阻挡杆,两阻挡杆随第一滑块左右滑动时,右端能进出拨料腔,两阻挡杆上端有一个第二滑块,第二滑块右端伸入拨料腔内,第二滑块向左滑动时能带动挡板关闭开口,第二滑块不脱离拨料腔,阻挡杆无法伸出拨料腔,阻挡杆不伸出拨料腔,两第一滑块滑动到主视投影重合位置时,第一开关被按压；本发明通过两阻挡杆交替对拨料板阻挡,确保传送带对颚式破碎机破碎口定时定量卸料,降低了返料现象的出现。(The invention relates to a jaw-breaking return-preventing feeding device which comprises a shell, wherein a material stirring cavity is formed in the shell, the left upper end of the material stirring cavity is provided with an opening, a baffle is arranged at the opening position, the opening can be opened or closed by the baffle, a rotating rod is arranged in the material stirring cavity, four material stirring plates are fixed on the rotating rod, a rectangular cavity is formed in the shell, two first sliding blocks which alternately slide left and right are arranged in the rectangular cavity, a blocking rod is arranged on each first sliding block, when the two blocking rods slide left and right along with the first sliding blocks, the right end of each blocking rod can enter or exit the material stirring cavity, a second sliding block is arranged at the upper end of each blocking rod, the right end of each second sliding block extends into the material stirring cavity, when the second sliding blocks slide left, the baffle can be driven to close the opening, the second sliding blocks do not depart from the material stirring cavity, the blocking rods cannot extend out of the material stirring cavity, and the blocking rods do not extend out of the material stirring cavity, and when the two first sliding blocks slide to the main-view projection coinciding position, the first switch is pressed; according to the jaw crusher, the two blocking rods alternately block the shifting plate, so that the conveying belt can discharge materials to the crushing opening of the jaw crusher regularly and quantitatively, and the phenomenon of material return is reduced.)

1. The feeding device is characterized by comprising a shell (1), wherein a cylindrical material stirring cavity (2) which is arranged front and back is formed in the shell (1), openings communicated with the outside of the shell (1) are formed in the upper left end and the lower left end of the material stirring cavity (2) respectively, a baffle (3) is arranged at the opening position of the upper left end of the material stirring cavity (2), the baffle (3) can slide left and right to open or close the opening of the upper left end of the material stirring cavity (2), a rotating rod (5) is rotatably connected in the material stirring cavity (2), the rotating rod (5) is coaxial with the material stirring cavity (2) and can only rotate around an axis, four material stirring plates (6) are uniformly distributed and fixed on the rotating rod (5) along the radial circumference, and the material stirring cavity is uniformly divided into four cavities by the material stirring plates (6);

a rectangular cavity (7) is arranged on the left side of the material stirring cavity (2) on the shell (1), a cylindrical rotating block (8) which is arranged in front and back and can rotate around the axis of the rotating block is arranged in the rectangular cavity (7), the front end face and the back end face of the rotating block (8) are respectively provided with a first sliding block (10), the rotating block (8) can rotate around the axis of the rotating block and can drive two first sliding blocks (10) to alternately slide left and right in the rectangular cavity (7), each first sliding block (10) is connected with a horizontally arranged blocking rod (13) in a sliding way, a spring is fixed on each blocking rod (13), the other end of the spring is fixed on the first sliding block (10), when the two blocking rods (13) slide left and right along with the first sliding block (10), the right end can enter and exit the material stirring cavity (2), when the two first sliding blocks (10) slide to the main view projection coincidence position, the right ends of the two blocking rods (13) just break away from the material stirring cavity (2), a first switch (16) is fixed on the first sliding block (10), and the rotating block (8) can stop rotating when the first switch (16) is pressed;

two block pole (13) upper ends and have a second slider (18), second slider (18) can be in blocking pole (13) top horizontal slip, second slider (18) left end is fixed with the spring, the spring other end is fixed on casing (1), the spring makes second slider (18) right-hand member stretch into all the time and dials in the material chamber (2), second slider (18) right-hand member is the inclined plane, second slider (18) can drive baffle (3) when sliding left and close casing (1) upper left end opening gradually, if second slider (18) right-hand member does not break away from and dial material chamber (2), block pole (13) that lie in group material chamber (2) and can't stretch out group material chamber (2), block pole (13) wantonly and when being restricted and stretching out group material chamber (2), when waiting that two first sliders (10) slide to main sight projection coincidence position, first switch (16) are pressed.

2. The jaw crushing return-preventing feeding device as claimed in claim 1, wherein a horizontal cross bar (9) symmetrical about the axis of the rotating block (8) is fixed on each of the front and rear end faces of the rotating block (8), the first sliding blocks (10) are provided with long circular holes (11) penetrating through the front and rear end faces in the vertical direction, the cross bars (9) can be placed in the long circular holes (11), and the rotating block (8) can rotate around the axis thereof to drive the two first sliding blocks (10) to alternately slide left and right in the rectangular cavity (7).

3. The feeding device for preventing the return of the broken jaw as claimed in claim 1, wherein the housing (1) is fixed with a motor (21), a driving gear (22) is fixed on a rotating shaft of the motor (21), a driven gear (23) is fixed on an outer edge surface of the rotating block (8), the driving gear (22) is meshed with the driven gear (23), the motor (21) can drive the rotating block (8) to rotate around the axis of the motor, and the first switch (16) can stop the second motor (21) when being pressed.

4. The jaw-breaking and material-return-preventing feeding device as claimed in claim 1, wherein a rectangular block (19) is arranged on the left side of the second sliding block (18), the rectangular block (19) is fixed on the housing (1), when the second sliding block (18) slides leftwards to be separated from the material-stirring cavity (2), the rectangular block (19) can prevent the second sliding block (18) from continuously sliding leftwards, a second blind hole (14) is formed in the upper end face of the blocking rod (13), a stop block (15) is connected in the second blind hole (14) in a sliding manner, a spring is fixed at the lower end of the stop block (15), the spring enables the stop block (15) to extend upwards out of the second blind hole (14), the upper end face of the stop block (15) is an inclined face, the stop block (15) can be extruded into the second blind hole (14) by the inclined face when the second sliding block (18) slides leftwards, and can extend upwards out of the second blind hole (14) when the stop block (15) is positioned between the rectangular block (19) and the second sliding block (18), the rectangular block (19) can limit the stop block (15) to slide leftwards, and the right end of the stop rod (13) is arranged in the material stirring cavity (2).

5. The feeding device with jaw breakage and material return prevention as claimed in claim 4, wherein each first sliding block (10) is provided with a first blind hole (12) at the right end face, a blocking rod (13) is slidably connected in the first blind hole (12), a vertical plate is fixed at the left end of the blocking rod (13), the vertical plate is slidably connected with the first blind hole (12), a spring is fixed on the vertical plate, the other end of the spring is fixed at the bottom of the first blind hole (12), a baffle in the vertical direction is fixed at the right end of the first blind hole (12), a first switch (16) is fixed at the left end face of the baffle, when the stop block (15) blocks the stop rod (13) in the material poking cavity (2) and can not slide leftwards, and two first sliding blocks (10) continue to slide to the overlapping position of the main-view projection, the vertical plate slides rightwards to the position of the baffle plate along with the blocking rod (13) relative to the first blind hole (12), and the vertical plate can press the first switch (16).

6. The jaw-breaking and return-preventing feeding device as claimed in claim 1, wherein a lever (20) is arranged above the second sliding block (18), two ends of the lever (20) are respectively provided with a straight slotted hole, the upper end of the second sliding block (18) and the left end of the baffle (3) are respectively hinged in the straight slotted holes, and the middle part of the lever (20) is hinged on the shell (1) and can swing left and right along a hinged point.

7. The jaw-breaking material return prevention feeding device as claimed in claim 1, wherein the rotating rod (5) is rotatably connected to the front end surface and the rear end surface of the material stirring cavity (2), and the connecting position is matched through a ratchet wheel and a pawl, so that the rotating rod (5) can only rotate anticlockwise around the axis.

Technical Field

The invention relates to the field of feeding of crushers, in particular to a jaw crushing and material return preventing feeding device.

Background

The jaw crusher is widely used as crushing equipment and comprises a movable jaw plate and a static jaw plate, wherein the jaw plate is used for carrying out motion simulation and two animal material crushing operations;

because jaw breaker adopts the conveyer belt pay-off usually, the material on the conveyer belt is the coarse fodder through rough handling usually, and the shape size difference is great, consequently can not guarantee that the pay-off volume of conveyer belt is invariable, pay-off often and pay-off not enough phenomenon often can appear: the material is accumulated between the two jaw plates due to the fact that a large amount of material is fed, so that material returning occurs to jaw breakage, even irreversible damage to the jaw plates can be caused, and the service life of the jaw breakage is shortened; because the jaw crusher runs at constant power, the whole crushing efficiency of the jaw crusher is influenced if the feeding is less, and the resource waste is caused.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the jaw crushing material return prevention feeding device, which solves the problem that the jaw crusher generates material return during crushing.

The technical scheme includes that the jaw breakage return-preventing feeding device comprises a shell, a cylindrical material stirring cavity which is placed in the shell is formed in the shell in a front-back mode, openings communicated with the outside of the shell are formed in the upper left end and the lower left end of the material stirring cavity respectively, a baffle is arranged at the opening position of the upper left end of the material stirring cavity, the baffle can slide left and right to open or close the opening of the upper left end of the material stirring cavity, a rotating rod is rotatably connected in the material stirring cavity, the rotating rod is coaxial with the material stirring cavity and can only rotate around an axis, four material stirring plates are uniformly distributed and fixed on the rotating rod along the radial circumference, and the material stirring cavity is divided into four cavities by the material stirring plates;

the left side of a material stirring cavity on the shell is provided with a rectangular cavity, the rectangular cavity is internally provided with a cylindrical rotating block which is placed front and back and can rotate around the axis of the rotating block, the front end face and the back end face of the rotating block are respectively provided with a first sliding block, the rotating block can rotate around the axis of the rotating block and can drive two first sliding blocks to alternately slide left and right in the rectangular cavity, each first sliding block is connected with a horizontally placed blocking rod in a sliding mode, a spring is fixed on each blocking rod, the other end of the spring is fixed on the first sliding block, when the two blocking rods slide left and right along with the first sliding blocks, the right end of each blocking rod can enter and exit the material stirring cavity, when the two first sliding blocks slide to the main-view projection superposition position, the right ends of the two blocking rods just separate from the material stirring cavity, a first switch is fixed on the first sliding block, and the rotating block can stop rotating when the first switch is pressed;

two block that the pole upper end has a second slider, the second slider can block pole top horizontal slip, the second slider left end is fixed with the spring, the spring other end is fixed on the casing, the spring makes the second slider right-hand member stretch into all the time and dials the material intracavity, second slider right-hand member is the inclined plane, the second slider can drive the baffle when sliding left and close casing upper left end opening gradually, if the second slider right-hand member does not break away from and dial the material chamber, the pole that blocks that is located dials the material intracavity can't stretch out and dial the material chamber, block wantonly that the pole is when being restricted to stretch out and dial the material chamber, treat when two first sliders slide to main sight projection coincidence position, first switch is pressed.

The front end face and the rear end face of the rotating block are respectively fixed with a horizontal cross rod which is symmetrical about the axis of the rotating block, the first sliding blocks are provided with long round holes which penetrate through the front end face and the rear end face in the vertical direction, the cross rods can be arranged in the long round holes, and the rotating block rotates around the axis of the rotating block and can drive the two first sliding blocks to alternately slide left and right in the rectangular cavity.

The shell is fixed with a motor, a driving gear is fixed on a rotating shaft of the motor, a driven gear is fixed on the outer edge surface of the rotating block, the driving gear is meshed with the driven gear, the motor can drive the rotating block to rotate around the axis of the motor, and the second motor can stop rotating when the first switch is pressed.

The second slider left side have a rectangular block, the rectangular block is fixed on the casing, when the second slider slides to breaking away from the material stirring chamber leftwards, the rectangular block can stop the second slider and continue to slide leftwards, stop the pole up end and seted up the second blind hole, sliding connection has a dog in the second blind hole, the dog lower extreme is fixed with the spring, the spring makes the dog upwards visit out the second blind hole, the dog up end is the inclined plane, the second slider can pass through the inclined plane and extrude the dog to the second blind hole leftwards, can upwards visit out the second blind hole when the dog is located between slider rectangular block and the second slider, the rectangular block can restrict the dog and slide leftwards, stop the pole right-hand member this moment and arrange the material stirring intracavity in, when the second slider does not contact with the rectangular block, the rectangular block homoenergetic stops the dog and slides leftwards, make and stop the pole right-hand member and arrange the material stirring intracavity in all the time.

Every first slider right-hand member all seted up first blind hole, block pole sliding connection in first blind hole, it is fixed with a riser to block the pole left end, riser and first blind hole sliding connection, the spring is fixed on the riser, the spring other end is fixed in first blind hole bottom, first blind hole right-hand member is fixed with the baffle of a vertical direction, first switch is fixed at the baffle left end face, will block the pole card when the dog and can't slide left in dialling the material intracavity, and two first sliders continue to slide owner and look projection coincidence position, the riser slides right baffle position for first blind hole along with blocking the pole, first switch can be pressed to the riser.

A lever is arranged above the second sliding block, two ends of the lever are respectively provided with a straight slotted hole, the upper end of the second sliding block and the left end of the baffle are respectively hinged in the straight slotted holes, and the middle part of the lever is hinged on the shell and can swing left and right along a hinged point.

The rotating rod is rotatably connected to the front end face and the rear end face of the material poking cavity, and the connecting position is matched with the ratchet wheel and the pawl, so that the rotating rod can only rotate anticlockwise around the axis.

According to the jaw crusher, the two blocking rods alternately block the shifting plates, so that the conveying belt can discharge materials to the crushing opening of the jaw crusher regularly and quantitatively, the crushing efficiency of the crusher is improved, the material return phenomenon is greatly reduced, and the service life of the crusher is prolonged.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a front sectional view of the present invention.

Fig. 3 is a front cross-sectional view of the front side blocking lever of the present invention captured by the rectangular block and the second slide block not yet slid to the rectangular lever position.

FIG. 4 is a front cross-sectional view of the front blocking bar of the present invention not yet slid to the tile position and the second slide has been pressed to the tile position.

Fig. 5 is a perspective view of a second slider of the present invention.

FIG. 6 is a top view of the connection of the rotary block, the cross bar, the driving gear, the driven gear and the motor of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, the material poking device comprises a shell 1, wherein a cylindrical material poking cavity 2 which is placed front and back is arranged in the shell 1, openings communicated with the outside of the shell 1 are respectively formed in the upper left end and the lower left end of the material poking cavity 2, a baffle 3 is arranged at the opening position of the upper left end of the material poking cavity 2, the baffle 3 can slide left and right to open or close the opening of the upper left end of the material poking cavity 2, a rotating rod 5 is rotatably connected in the material poking cavity 2, the rotating rod 5 is coaxial with the material poking cavity 2 and can only rotate around an axis, four material poking plates 6 are uniformly distributed and fixed on the rotating rod 5 along the radial circumference, and the material poking cavities are uniformly divided into four chambers by the material poking plates 6;

a rectangular cavity 7 is formed in the left side of the material stirring cavity 2 on the shell 1, a cylindrical rotating block 8 which is placed front and back and can rotate around the axis of the rotating block is arranged in the rectangular cavity 7, a first sliding block 10 is respectively arranged on the front end face and the back end face of the rotating block 8, the rotating block 8 rotates around the axis of the rotating block 8 and can drive the two first sliding blocks 10 to alternately slide left and right in the rectangular cavity 7, each first sliding block 10 is connected with a horizontally placed blocking rod 13 in a sliding mode, a spring is fixed on each blocking rod 13, the other end of the spring is fixed on each first sliding block 10, when the two blocking rods 13 slide left and right along with the first sliding blocks 10, the right end of each blocking rod 13 can enter and exit the material stirring cavity 2, when the two first sliding blocks 10 slide to the main-view projection coinciding position, the right end of each blocking rod 13 just breaks away from the material stirring cavity 2, a first switch 16 is fixed on each first sliding block 10, and when the first switch 16 is pressed, the rotating block 8 can stop rotating;

two block that there is a second slider 18 on the pole 13, second slider 18 can block the pole 13 top horizontal slip, second slider 18 left end is fixed with the spring, the spring other end is fixed on casing 1, the spring makes second slider 18 right-hand member stretch into all the time in the material stirring chamber 2, second slider 18 right-hand member face is the inclined plane, second slider 18 can drive baffle 3 and close casing 1 upper left end opening gradually when sliding left, if second slider 18 right-hand member does not break away from material stirring chamber 2, the pole 13 that blocks that is located material stirring chamber 2 can't stretch out material stirring chamber 2, block pole 13 wantonly and when being restricted to stretch out material stirring chamber 2, when treating that two first sliders 10 slide to the main view projection coincidence position, first switch 16 is pressed.

The front end face and the rear end face of the rotating block 8 are respectively fixed with a horizontal cross rod 9 which is symmetrical about the axis of the rotating block 8, the first sliding blocks 10 are provided with long round holes 11 which penetrate through the front end face and the rear end face in the vertical direction, the cross rods 9 can be arranged in the long round holes 11, and the rotating block 8 can rotate around the axis of the rotating block and can drive the two first sliding blocks 10 to alternately slide left and right in the rectangular cavity 7.

The motor 21 is fixed on the shell 1, the driving gear 22 is fixed on the rotating shaft of the motor 21, the driven gear 23 is fixed on the outer edge surface of the rotating block 8, the driving gear 22 is meshed with the driven gear 23, the motor 21 can drive the rotating block 8 to rotate around the axis of the motor, and the second motor 21 can stop rotating when the first switch 16 is pressed.

The left side of the second sliding block 18 is provided with a rectangular block 19, the rectangular block 19 is fixed on the shell 1, when the second sliding block 18 slides leftwards to be separated from the material stirring cavity 2, the rectangular block 19 can prevent the second sliding block 18 from continuously sliding leftwards, the upper end surface of the blocking rod 13 is provided with a second blind hole 14, the second blind hole 14 is internally connected with a stop block 15 in a sliding way, the lower end of the stop block 15 is fixed with a spring, the spring enables the stop block 15 to upwards extend out of the second blind hole 14, the upper end surface of the stop block 15 is an inclined surface, the second sliding block 18 slides leftwards, the stop block 15 can be extruded into the second blind hole 14 through the inclined surface, when the stop block 15 is positioned between the rectangular block 19 of the sliding block and the second sliding block 18, the rectangular block 19 can limit the stop block 15 to slide leftwards, the right end of the blocking rod 13 is positioned in the material stirring cavity 2, when the second sliding block 18 is not contacted with the rectangular block 19, the rectangular block 19 can prevent the stop block 15 from sliding leftwards, so that the right end of the blocking rod 13 is always arranged in the material stirring cavity 2.

Every 10 right-hand members of first slider all seted up first blind hole 12, block pole 13 sliding connection in first blind hole 12, it is fixed with a riser to block pole 13 left end, riser and 12 sliding connection of first blind hole, the spring is fixed on the riser, the spring other end is fixed in first blind hole 12 bottom, first blind hole 12 right-hand member is fixed with the baffle of a vertical direction, first switch 16 is fixed at the baffle left end face, will block that pole 13 card can't slide left in dialling material chamber 2 when dog 15, and two first sliders 10 continue to slide main sight projection coincidence position, the riser slides right to the baffle position for first blind hole 12 along with blocking pole 13, first switch 16 can be pressed to the riser.

A lever 20 is arranged above the second sliding block 18, two ends of the lever 20 are respectively provided with a straight slotted hole, the upper end of the second sliding block 18 and the left end of the baffle 3 are respectively hinged in the straight slotted holes, and the middle part of the lever 20 is hinged on the shell 1 and can swing left and right along a hinged point.

The rotating rod 5 is rotatably connected to the front end face and the rear end face of the material stirring cavity 2, and the connecting position is matched with a ratchet wheel and a pawl, so that the rotating rod 5 can only rotate anticlockwise around an axis.

When the material stirring device is used, firstly, the right end of any one blocking rod 13 is placed in the material stirring cavity 2, then any one material stirring plate 6 is placed above the second sliding block 18, the motor 21 is started, the material is fed into the material stirring cavity 2 through the opening at the upper left end of the material stirring cavity 2, the material entering the material stirring cavity 2 falls on the material stirring plate 6 above the second sliding block 18, the gravity of the material stirring plate 6 is increased, the second sliding block 18 slides leftwards under the extrusion force of the material stirring plate 6, the transverse plate 3 gradually closes the opening at the upper left end of the material stirring cavity 2 through the lever 20, meanwhile, the motor 21 drives the rotating block 8 to rotate around the axis through the meshing of the driving gear 22 and the driven gear 23, and the first sliding blocks 10 at the front side and the rear side of the rectangular cavity 7 are driven to slide leftwards and rightwards alternately through the matching of the transverse rod 9 and the long round hole 11 when the rotating block 8 rotates, and the following conditions can occur when the material is collected:

if the stop block 15 moves from right to left to a position before the rectangular block 19 is pressed by the material stirring plate 6, the second slide block 18 is pressed to the position of the rectangular block 19 by the material stirring plate 6, the blocking rod 13 can block the material stirring plate 6 from swinging downwards until the blocking rod 13 can smoothly extend out of the material stirring cavity 2, when the two first slide blocks 10 slide to the position of the overlapping of the main-view projection, the two blocking rods 13 do not extend into the material stirring cavity 2, and the material stirring plate 6 can smoothly discharge the material from the opening at the left lower end of the material stirring cavity 2 through the position of the communicating hole 17;

if the slide block 15 moves to the position of the abdicating groove 19, when the gravity of the material on the material poking plate 6 is not enough to press the second slide block 18 to the position of the rectangular block 19, the stop block 15 will be clamped on the right side of the rectangular block 19 when moving left along with the stop rod 13, so that the stop rod 13 cannot move left, but the rotating block 8 continues to rotate, the first slide block 10 slides left along with the cross rod 9, but the stop rod 13 does not move until the two first slide blocks 10 slide to the main-view projection overlapping position, the vertical plate at the left end of the stop rod 13 touches the first switch 16, so that the rotating block 8 stops rotating, the material continues to fall until the second slide block 18 is pressed to the position of the rectangular block 19, the stop rod 13 can slide left again under the pulling force of the spring, at this time, the two stop rods 13 are both placed outside the material poking cavity 2, the material poking plate 6 can smoothly swing and unload material, the vertical plate quickly breaks away from the first switch 12 to reset under the pulling force of the spring, the rotating block 8 continues to rotate, the blocking rod 13 at the other side extends out of the communicating hole 17 to block the next material shifting plate 6.

Whether the material quantity on the material shifting plate 6 reaches the standard or not is measured through a spring at the left end of the second sliding block 18, if the stop block 15 moves to the position of the rectangular block 19, the gravity of the material on the material shifting plate 6 is not enough to press the second sliding block 18 to the position of the rectangular block 19, the stop block 15 is clamped at the right end of the rectangular block 19 to limit the stop rod 13 to slide leftwards when moving leftwards along with the stop rod 13, the rotating block 8 is temporarily stopped by touching the first switch 16 through the vertical plate, the effect that the subsequent unloading period is not influenced when the material quantity of the conveyor belt 3 does not reach the standard within a certain time and the unloading is waited is realized, and the device carries out circular quantitative unloading;

when the stop block 15 is not moved to the position of the rectangular block 19 before the second slide block 18 is pressed to the position of the rectangular block 19, the second slide block 18 can move the transverse plate 20 rightwards through the lever 20 to close the opening at the upper left end of the material stirring cavity 2, the discharging is stopped, and the discharging is performed when the rotary block 8 drives the two first slide blocks 10 to slide to the main-view projection overlapping position, so that the materials in the previous period are discharged after being crushed, the whole crushing period is not influenced, the crusher is always in the maximum crushing efficiency, and the phenomenon of material returning caused by excessive discharging is prevented;

the material can only enter the feed inlet 4 of the jaw crusher after rotating anticlockwise in the material stirring cavity 2 through the material stirring plate 6, the feed inlet 4 of the jaw crusher is separated from the outside through the material stirring plate 6, the pollution of dust to the environment can be effectively prevented, and the damage of personnel or equipment caused by the fact that the crusher sprays fragments outwards can also be prevented;

the kick-out plate 6 receives the materials between the materials entering the feed inlet 4 of the jaw crusher, so that the blanking can be buffered, and the damage to the jaw plates caused by large blanking falling intervals can be prevented;

the two sets of first sliding blocks 10 and the blocking rods 13 alternately slide to alternately block the material stirring plates 6 to shorten the telescopic intervals of the blocking rods 13, so that the blocking rods 13 are prevented from not extending into the material stirring cavity 2, and the material stirring plates 6 quickly rotate to discharge materials under the action of gravity;

utilize second slider 18 to move the in-process to the left and make diaphragm 20 move right through lever 20 and close stirring chamber 2 upper left end opening gradually, slow down later stage blanking speed, prevent because of the blanking is too fast, material inertia influences the judgement of second slider 18 left end spring to the whole weight of material.