A primary crushing unit for stone conveying

Abstract

The present invention discloses a primary crushing unit for stone conveying, belonging to the technical field of jaw crushers, comprising: a machine body, a power device arranged on the machine body, a transmission device connected to the power device, a movable jaw device connected to the transmission device, a static jaw device adapted to the movable jaw device, and a hammer device connected to the transmission device; the hammer device comprises: a reciprocating mechanism, a hammer mechanism adapted to the reciprocating mechanism, and a hammer head connected to the hammer mechanism; the hammer mechanism is adapted to the reciprocating mechanism and is used to cause the hammer mechanism to reciprocate in the reciprocating mechanism so as to hammer the material in the crushing chamber through the hammer head. The present invention solves the technical problem that larger diameter stones cannot be quickly crushed in a jaw crusher, and achieves the technical effect of quickly crushing large diameter stones in a jaw crusher.

Description

Technical Field

[0001] The invention relates to the technical field of jaw crushers, in particular to a primary crushing machine group for conveying stone materials. Background Art

[0002] During the stone processing, the stone is usually first transported by a conveyor belt to various crushing equipment for multiple crushing processes to form stones with a suitable particle size range. However, during the initial crushing process, there are often some stones that are missed or not fully broken by the impact hammer or crusher. These stones are large in diameter and usually fall directly above the jaw crusher and cannot fully enter.

[0003] When stones with larger diameters are crushed in the jaw crusher, usually only a part of them enters the jaw crusher for crushing. The jaw crusher cannot crush such stones quickly, thereby blocking the feed port of the jaw crusher, causing the stones on the subsequent conveyor belt to overflow and get stuck in other equipment, or directly fall into the lower conveyor belt, affecting the normal operation of the crushing equipment and posing a risk of falling rocks. Summary of the Invention

[0004] To solve the above problems, the present invention provides a primary crushing unit for stone conveying, comprising: a machine body, a power device provided on the machine body, a transmission device connected to the power device, a movable jaw device connected to the transmission device, a static jaw device adapted to the movable jaw device, and a hammer device connected to the transmission device;

[0005] The hammering device includes: a reciprocating mechanism, a hammering mechanism adapted to the reciprocating mechanism, and a hammer head connected to the hammering mechanism;

[0006] The hammer mechanism is adapted to the reciprocating mechanism, and is used to enable the hammer mechanism to perform reciprocating motion in the reciprocating mechanism so as to hammer the material in the crushing bin through the hammer head.

[0007] In some embodiments, the transmission device includes a first pulley and an eccentric shaft connected to the first pulley;

[0008] The movable jaw device includes a movable jaw plate and a toggle plate hinged to the movable jaw plate, wherein the upper portion of the movable jaw plate is connected to the eccentric shaft through a bearing, and the lower portion is hinged to the toggle plate;

[0009] The static jaw device includes a static jaw plate adapted to the dynamic jaw plate;

[0010] The reciprocating mechanism includes a first sliding portion and a second sliding portion arranged opposite to each other in an upper and lower direction, and the first sliding portion and the second sliding portion are both movably connected to the hammer mechanism;

[0011] The first sliding part and the second sliding part have the same structure and both include a sliding shaft, and the sliding shaft is movably connected to the hammer mechanism.

[0012] In some embodiments, the transmission device further includes a second pulley, a third pulley in transmission connection with the second pulley, a transmission gear connected to the third pulley, and an elastic pulley adapted to the second pulley and the third pulley; wherein the first pulley and the second pulley are respectively located at two ends of the eccentric shaft;

[0013] The hammer mechanism includes a first transmission gear set, a second transmission gear set, a first eccentric wheel set and a second eccentric wheel set connected to the first transmission gear set, and a third eccentric wheel set and a third eccentric wheel set connected to the second transmission gear set;

[0014] The first transmission gear set and the second transmission gear set have the same structure, both of which are transmission structures consisting of two sets of gears meshing with each other, wherein the first transmission gear set and the second transmission gear set are arranged parallel to each other;

[0015] The first transmission gear set and the second transmission gear set are also connected to the transmission gear.

[0016] In some embodiments, the first eccentric wheel group and the second eccentric wheel group are respectively connected to a group of gears in the first transmission gear group, and the third eccentric wheel group and the fourth eccentric wheel group are respectively connected to a group of gears in the second transmission gear group, wherein the first eccentric wheel group, the second eccentric wheel group, the third eccentric wheel group and the fourth eccentric wheel group are each provided with an eccentric wheel;

[0017] The eccentric wheel is a wheel structure with spokes on only one side of the hub;

[0018] The number of eccentric wheels in the first eccentric wheel group and the third eccentric wheel group, and the number of eccentric wheels in the second eccentric wheel group and the fourth eccentric wheel group is equal, and the eccentric wheels in the first eccentric wheel group and the third eccentric wheel group, and the second eccentric wheel group and the fourth eccentric wheel group are symmetrically arranged, so that when the first eccentric wheel group, the second eccentric wheel group, the third eccentric wheel group and the fourth eccentric wheel group rotate, the eccentric forces generated by the first eccentric wheel group and the third eccentric wheel group offset each other, and the eccentric forces generated by the second eccentric wheel group and the fourth eccentric wheel group offset each other.

[0019] In some embodiments, the hammering device also includes a distance adjusting mechanism and a distance changing mechanism connected to the distance adjusting mechanism. The distance changing mechanism is also connected to the first eccentric wheel group and the second eccentric wheel group, and is used to adjust the angles of the eccentric wheels in the first eccentric wheel group and the second eccentric wheel group so that the eccentric wheels in the first eccentric wheel group and the third eccentric wheel group, and the second eccentric wheel group and the fourth eccentric wheel group are arranged asymmetrically.

[0020] In some embodiments, the static jaw device further comprises a flared jaw plate hinged to the static jaw plate, wherein the flared jaw plate is hinged to the static jaw plate;

[0021] The distance adjustment mechanism includes a pressure plate, a first movable joint connected to the pressure plate, a second movable joint, a top plate with two ends movably connected to the first movable joint and the second movable joint respectively, a transverse plate connected to the second movable joint, a guide column slidably connected to the transverse plate, and a clamping hole provided on the transverse plate, wherein the clamping hole is also connected to the distance change mechanism;

[0022] The pressing plate is connected to the flared jaw plate;

[0023] The guide post is arranged on the machine body, and the transverse moving plate is sleeved on the guide post, and the transverse moving plate can only slide along the setting direction of the guide post;

[0024] The two ends of the top plate are hinged to the first movable joint and the second movable joint respectively;

[0025] The end of the top plate connected to the pressure plate is flipped over to drive the transverse plate connected to the end of the pressure plate away from the top plate to slide in the direction of the guide column, thereby driving the distance changing mechanism connected to the clamping hole to slide in the direction of the guide column.

[0026] In some embodiments, the pitch-changing mechanism includes a connecting frame, a connecting cylinder connected to the connecting frame, and a pitch-changing cylinder adapted to the connecting frame;

[0027] One side of the connecting frame is provided with a connecting wheel, and the other side is provided with a cylindrical connecting clamping shaft, and the connecting clamping shaft is also provided with a positioning pin and a sliding key;

[0028] Wherein, the connecting wheel is a wheel structure with a groove provided on the wheel rim, the groove of the connecting wheel is adapted to the clamping hole, and the connecting wheel is clamped in the clamping hole;

[0029] The connecting clamping shaft is adapted to the connecting cylinder, and the connecting cylinder is connected to the two sets of gears of the first transmission gear set. The connecting cylinder is a hollow structure, and a positioning groove is provided on its side along the length direction of the connecting cylinder. When the connecting frame is connected to the connecting cylinder, the connecting clamping shaft is connected to the hollow part of the connecting cylinder, and the positioning pin and the sliding key are both located in the positioning groove. The positioning pin is engaged with the positioning groove. When the connecting cylinder rotates following the first transmission gear set, the transmission connecting frame rotates following the connecting cylinder through the cooperation of the positioning groove and the positioning pin.

[0030] In some embodiments, the pitch-changing cylinder is sleeved on the connecting cylinder, and the eccentric wheels of the first eccentric wheel group and the third eccentric wheel group are sleeved on the connecting cylinder;

[0031] The pitch-changing cylinder is also provided with an arc-shaped groove adapted to the sliding key along the length direction of the connecting cylinder. After the sliding key is connected to the arc-shaped groove, the pitch-changing cylinder rotates along with the sliding key to drive the eccentric wheel on the pitch-changing cylinder to rotate;

[0032] When the transverse plate drives the variable pitch mechanism connected to the clamping hole to slide in the direction set by the guide column, the sliding key slides in the arc groove to drive the connecting tube and the eccentric wheel sleeved on the connecting tube to rotate, so that the angle of the side of the eccentric wheel with the spoke in the first eccentric wheel group and the second eccentric wheel group is changed relative to the eccentric wheel in the third eccentric wheel group and the fourth eccentric wheel group, so that the eccentric wheels in the first eccentric wheel group and the third eccentric wheel group, the second eccentric wheel group and the fourth eccentric wheel group are all asymmetrically set during the rotation process.

[0033] In some embodiments, the transmission device further comprises a force arm connected to the tension wheel, and a tension spring connected to the force arm, and the transmission gear is fixedly mounted on the hammer mechanism;

[0034] The tension wheel is used to make the belt connected with the transmission gear, the tension wheel and the third pulley in a taut state by utilizing the restoring force of the tension spring when the hammer mechanism performs reciprocating motion.

[0035] In some embodiments, the flaring jaw is arranged at an angle.

[0036] By adopting the above technical solution, the present invention mainly has the following technical effects:

[0037] When no large-diameter material falls into the crushing bin, the eccentrics in the first eccentric wheel group, the third eccentric wheel group, the second eccentric wheel group and the fourth eccentric wheel group are symmetrically arranged so that the hammer mechanism does not reciprocate on the reciprocating mechanism; when large-diameter material falls into the crushing bin, the large-diameter material forces the flared jaw plate to flip, and the transverse plate drives the variable pitch mechanism connected to the clamping hole to slide in the direction set by the guide column, and the sliding key slides in the arc groove to drive the connecting cylinder and the eccentric wheel sleeved on the connecting cylinder to rotate, so that the first eccentric wheel group and the The angle of the side of the eccentric wheel in the second eccentric wheel group with the spokes changes relative to the eccentric wheels in the third and fourth eccentric wheel groups, so that the eccentric wheels in the first and third eccentric wheel groups, the second and fourth eccentric wheel groups are all asymmetrically arranged during rotation. The eccentric force generated by the rotation of the first, second, third and fourth eccentric wheel groups causes the hammer mechanism to reciprocate on the reciprocating mechanism, and the hammer head connected to the hammer mechanism is driven to hammer the material in the crushing chamber. This solves the technical problem that large-diameter stones cannot be quickly crushed in a jaw crusher, and achieves the technical effect of quickly crushing large-diameter stones in a jaw crusher. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a structural schematic diagram of a primary crushing unit for stone conveying according to the present invention;

[0039] Figure 2 This is a structural schematic diagram of a primary crushing unit for stone conveying according to the present invention (from another perspective);

[0040] Figure 3 This is a schematic cross-sectional view of a primary crushing unit for stone conveying according to the present invention;

[0041] Figure 4 This is a structural schematic diagram of a primary crushing unit (hidden part) for stone conveying according to the present invention;

[0042] Figure 5 This is a schematic cross-sectional view of a hammering device in a primary crushing unit for stone conveying according to the present invention;

[0043] Figure 6 This is a structural schematic diagram of a hammer device in a primary crushing unit for stone conveying according to the present invention;

[0044] Figure 7 This is a structural schematic diagram (from another perspective) of a hammer device in a primary crushing unit for stone conveying according to the present invention;

[0045] Figure 8 This is a schematic diagram of the explosion structure of a hammer device in a primary crushing unit for stone conveying according to the present invention;

[0046] Figure 9 The figure is a schematic structural diagram of the first eccentric wheel group and the second eccentric wheel group in a primary crushing unit for stone conveying of the present invention.

[0047] The meanings of the reference numerals are as follows:

[0048] 1. Body;

[0049] 2. Power plant;

[0050] 3. Transmission device; 31. First pulley; 32. Eccentric shaft; 33. Second pulley; 34. Third pulley; 35. Transmission gear; 36. Tension pulley; 37. Lever; 38. Tension spring;

[0051] 4. Moving jaw device; 41. Moving jaw plate; 42. Toggle plate;

[0052] 5. Static jaw device; 51. Static jaw plate; 52. Side guard plate; 53. Expanding jaw plate;

[0053] 6. Hammering device; 61. Reciprocating mechanism; 611. First sliding portion; 6111. Sliding shaft; 6112. Return spring; 612. Second sliding portion; 62. Hammering mechanism; 621. First transmission gear set; 622. Second transmission gear set; 623. First eccentric wheel set; 624. Second eccentric wheel set; 625. Third eccentric wheel set; 626. Fourth eccentric wheel set; 63. Hammer; 64. Pitch adjustment mechanism; 641. Pressing plate; 642. First movable joint; 643. Second movable joint; 644. Top plate; 645. Transverse plate; 646. Guide column; 647. Clamping hole; 65. Pitch changing mechanism; 651. Connecting frame; 6511. Connecting wheel; 6512. Connecting clamping shaft; 6513. Positioning pin; 6514. Sliding key; 652. Connecting cylinder; 6521. Positioning groove; 653. Pitch changing cylinder; 6531. Arc groove. DETAILED DESCRIPTION

[0054] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the specification of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0055] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0056] Figure 1 This is a structural schematic diagram of a primary crushing unit for stone conveying according to the present invention;

[0057] Figure 2 This is a structural schematic diagram of a primary crushing unit for stone conveying according to the present invention (from another perspective);

[0058] Figure 3 This is a schematic cross-sectional view of a primary crushing unit for stone conveying according to the present invention;

[0059] like Figure 1-Figure 3As shown, the present invention provides a primary crushing unit for stone conveying, comprising: a machine body 1, a power device 2 arranged on the machine body 1, a transmission device 3 connected to the power device 2, a movable jaw device 4 connected to the transmission device 3, a static jaw device 5 adapted to the movable jaw device 4, and a hammer device 6 connected to the transmission device 3.

[0060] In some embodiments, the machine body 1 is the structural support portion of a primary crushing unit for stone conveying, and the machine body 1 can provide a foundation for installation and fixation of various components.

[0061] In some embodiments, the power device 2 is the part that provides power in the primary crushing unit for stone conveying. In some embodiments, the power device 2 can be a motor, which is an electromagnetic device that can convert electrical energy into mechanical energy, thereby providing power for various mechanical equipment.

[0062] In some embodiments, the transmission device 3 is connected to the power device 2 and the movable jaw device 4. The transmission device 3 is used to transmit the power output by the power device 2 to the movable jaw device 4 to provide power for the operation of the movable jaw device 4.

[0063] In some embodiments, the transmission device 3 includes a first pulley 31 and an eccentric shaft 32 connected to the first pulley 31. In some embodiments, the first pulley 31 is a transmission structure, which can be connected to a transmission wheel provided on the output shaft of the motor through a belt, thereby using the motor to drive the first pulley 31 to rotate via the belt.

[0064] In some embodiments, the movable jaw device 4 is a movable crushing part in a primary crushing unit for stone conveying. In some embodiments, the movable jaw device 4 includes a movable jaw plate 41 and a toggle plate 42 hinged to the movable jaw plate 41, wherein the upper part of the movable jaw plate 41 is connected to the eccentric shaft 32 through a bearing, and the lower part is hinged to the toggle plate 42. The above structure enables the movable jaw plate 41 to perform complex swinging motions driven by the eccentric shaft 32.

[0065] Furthermore, the movable jaw plate 41 is provided with toothed crushing plates that are capable of direct contact with the material. As the movable jaw plate 41 swings, the toothed crushing plates perform crushing operations. Those skilled in the art will appreciate that when the eccentric shaft 32 rotates under the drive of the first pulley 31, the movable jaw plate 41 is driven by the eccentric shaft 32 to perform complex up-and-down, left-and-right motions. The motion trajectory of the movable jaw plate 41 approximates a circular arc, with the ellipse becoming increasingly elongated as it approaches the bottom. This complex motion causes the material to be squeezed, split, and bent within the crushing chamber, crushing it.

[0066] In some embodiments, the static jaw device 5 is the stationary crushing part in the primary crushing unit for stone conveying, which includes a static jaw plate 51 adapted to the movable jaw plate 41, and a side guard plate 52 adapted to the movable jaw plate 41 and the static jaw plate 51. In some embodiments, the movable jaw plate 41, the static jaw plate 51 and the side guard plate 52 form a crushing chamber that is wide at the top and narrow at the bottom. When the movable jaw plate 41 performs complex movements up and down and left and right in the crushing chamber, the toothed crushing plate squeezes and splits the material in the crushing chamber, thereby crushing the material.

[0067] Figure 4 This is a structural schematic diagram of a primary crushing unit (hidden part) for stone conveying according to the present invention;

[0068] like Figure 4 As shown, in some embodiments, the transmission device 3 further includes a second pulley 33, a third pulley 34 drivingly connected to the second pulley 33, a transmission gear 35 connected to the third pulley 34, and an elastic pulley 36 adapted to the second pulley 33 and the third pulley 34. The first pulley 31 and the second pulley 33 are respectively located at both ends of the eccentric shaft 32. When the motor drives the first pulley 31 to rotate via the belt, the second pulley 33 will rotate synchronously with the first pulley 31.

[0069] In some embodiments, the transmission gear 35 is connected to the third pulley 34, and the transmission gear 35 is also connected to the hammer device 6 to provide power for the hammer device 6 to hammer the material in the crushing bin. In some embodiments, the hammer device 6 includes: a reciprocating mechanism 61, a hammer mechanism 62 adapted to the reciprocating mechanism 61, and a hammer head 63 connected to the hammer mechanism 62.

[0070] Figure 5 This is a schematic cross-sectional view of a hammering device in a primary crushing unit for stone conveying according to the present invention;

[0071] like Figure 4-Figure 5As shown, the hammer mechanism 62 is adapted to the reciprocating mechanism 61, and is used to enable the hammer mechanism 62 to reciprocate in the reciprocating mechanism 61 so as to hammer the material in the crushing bin through the hammer head 63. Specifically, the reciprocating mechanism 61 includes a first sliding portion 611 and a second sliding portion 612 arranged relatively to each other in the upper and lower parts. In some embodiments, the first sliding portion 611 and the second sliding portion 612 are respectively fixed to the body 1 via connecting plates. The first sliding portion 611 and the second sliding portion 612 are both movably connected to the hammer mechanism 62. The hammer mechanism 62 reciprocates in the first sliding portion 611 and the second sliding portion 612, and crushing teeth are provided on the hammer head 63, so that the material in the crushing bin is hammered to crush large materials. The specific hammering process of the hammer mechanism 62 will be further described below.

[0072] In some embodiments, the first sliding portion 611 and the second sliding portion 612 have the same structure and both include a sliding shaft 6111. The sliding shaft 6111 is movably connected to the hammer mechanism 62. The hammer mechanism 62 slides back and forth on the sliding shaft 6111 to realize the reciprocating hammering process of the hammer mechanism 62.

[0073] In some embodiments, the hammer mechanism 62 is a box-type structure, and its bottom is slidingly connected to the first sliding part 611 and the second sliding part 612 respectively. In some more preferred embodiments, in order to enhance the smoothness of the hammer mechanism 62 during reciprocating motion in the reciprocating mechanism 61, the two sides of the sliding connection between the hammer mechanism 62 and the first sliding part 611 and the second sliding part 612 are also respectively provided with return springs 6112 mounted on the sliding shaft 6111.

[0074] Figure 6 This is a structural schematic diagram of a hammer device in a primary crushing unit for stone conveying according to the present invention;

[0075] Figure 7 This is a structural schematic diagram (from another perspective) of a hammer device in a primary crushing unit for stone conveying according to the present invention;

[0076] Figure 8 This is a schematic diagram of the explosion structure of a hammer device in a primary crushing unit for stone conveying according to the present invention;

[0077] Figure 9 This is a structural schematic diagram of a first eccentric wheel group and a second eccentric wheel group in a primary crushing unit for stone conveying of the present invention;

[0078] like Figure 6-Figure 8As shown, the hammer mechanism 62 includes a first transmission gear group 621, a second transmission gear group 622, a first eccentric wheel group 623 and a second eccentric wheel group 624 connected to the first transmission gear group 621, and a third eccentric wheel group 625 and a third eccentric wheel group 625 connected to the second transmission gear group 622.

[0079] In some embodiments, the first transmission gear set 621 and the second transmission gear set 622 have the same structure, both being transmission structures composed of two sets of gears meshing with each other, wherein the first transmission gear set 621 and the second transmission gear set 622 are arranged parallel to each other.

[0080] Furthermore, the first transmission gear set 621 and the second transmission gear set 622 are also connected to the transmission gear 35. It can be understood that the first transmission gear set 621 and the second transmission gear set 622 are simultaneously driven to rotate by the transmission gear 35, and the first transmission gear set 621 and the second transmission gear set 622 will rotate synchronously with the transmission gear 35.

[0081] In some embodiments, the first eccentric wheel group 623 and the second eccentric wheel group 624 are respectively connected to a group of gears in the first transmission gear group 621, and the third eccentric wheel group 625 and the fourth eccentric wheel group 626 are respectively connected to a group of gears in the second transmission gear group 622, wherein the first eccentric wheel group 623, the second eccentric wheel group 624, the third eccentric wheel group 625 and the fourth eccentric wheel group 626 are all provided with eccentric wheels. In some embodiments, the eccentric wheels are wheel-type structures with spokes provided on only one side of the hub.

[0082] It should be noted here that the number of eccentric wheels in the first eccentric wheel group 623 and the third eccentric wheel group 625, and the second eccentric wheel group 624 and the fourth eccentric wheel group 626 is equal, and the eccentric wheels in the first eccentric wheel group 623 and the third eccentric wheel group 625, and the second eccentric wheel group 624 and the fourth eccentric wheel group 626 are symmetrically arranged. The above structure enables the eccentric forces generated by the first eccentric wheel group 623 and the third eccentric wheel group 625 and the fourth eccentric wheel group 626 to offset each other after their interaction when the first eccentric wheel group 623, the second eccentric wheel group 624, the third eccentric wheel group 625 and the fourth eccentric wheel group 626 rotate, and the eccentric forces generated by the second eccentric wheel group 624 and the fourth eccentric wheel group 626 can offset each other after their interaction, so that the hammer mechanism 62 does not reciprocate on the reciprocating mechanism 61.

[0083] In some embodiments, the hammering device 6 further includes a pitch adjustment mechanism 64 and a pitch change mechanism 65 connected to the pitch adjustment mechanism 64. The pitch change mechanism 65 is further connected to the first eccentric wheel group 623 and the second eccentric wheel group 624, and is configured to adjust the angles of the eccentric wheels in the first eccentric wheel group 623 and the second eccentric wheel group 624 so that the eccentric wheels in the first eccentric wheel group 623 and the third eccentric wheel group 625, and the eccentric wheels in the second eccentric wheel group 624 and the fourth eccentric wheel group 626 are arranged asymmetrically. The specific adjustment process will be further described below.

[0084] like Figure 5 As shown, the static jaw device 5 also includes a flared jaw plate 53 hinged to the static jaw plate 51. In some embodiments, the flared jaw plate 53 is a plate-like structure, and its bottom is hinged to the top of the static jaw plate 51. It can be understood that when the material put into the crushing bin exceeds a certain diameter, the flared jaw plate 53 will be forced to flip along the hinge as the axis under the action of its own gravity.

[0085] like Figure 6-Figure 8 As shown, the distance adjustment mechanism 64 includes a pressure plate 641, a first movable joint 642 connected to the pressure plate 641, a second movable joint 643, a top plate 644 whose two ends are movably connected to the first movable joint 642 and the second movable joint 643 respectively, a transverse plate 645 connected to the second movable joint 643, a guide column 646 slidingly connected to the transverse plate 645, and a snap-in hole 647 opened on the transverse plate 645, wherein the snap-in hole 647 is also connected to the distance changing mechanism 65.

[0086] In some embodiments, the pressing plate 641 is connected to the flaring jaw 53 , and when the flaring jaw 53 flips along the hinge as the axis, the pressing plate 641 will flip synchronously with the flaring jaw 53 .

[0087] In some embodiments, the guide column 646 is provided on the body 1. After the transverse plate 645 is placed on the guide column 646, the transverse plate 645 can slide along the setting direction of the guide column 646 but cannot be displaced in other directions. Furthermore, the two ends of the top plate 644 are respectively hinged to the first movable joint 642 and the second movable joint 643.

[0088] It is understood that after the top plate 644 and the pressure plate 641 are flipped over at their connected ends, the traverse plate 645 connected to the end of the pressure plate 641 away from the top plate 644 can only slide in the direction set by the guide post 646 due to the presence of the guide post 646. Therefore, when the pressure plate 641 flips along with the flared jaw plate 53, the traverse plate 645 connected to the end of the pressure plate 641 away from the top plate 644 will slide in the direction set by the guide post 646, thereby driving the pitch-changing mechanism 65 connected to the engaging hole 647 to slide in the direction set by the guide post 646.

[0089] In some embodiments, the pitch changing mechanism 65 is connected to the pitch adjusting mechanism 64. The pitch changing mechanism 65 is driven by the pitch adjusting mechanism 64 to slide in the direction set by the guide column 646 and is used to adjust the angles of the first eccentric wheel group 623 and the second eccentric wheel group 624, so that the eccentric wheels in the first eccentric wheel group 623 and the third eccentric wheel group 625, the second eccentric wheel group 624 and the fourth eccentric wheel group 626 are all asymmetrically arranged. The above structure makes it possible for the eccentric forces generated by the first eccentric wheel group 623 and the third eccentric wheel group 625 and the fourth eccentric wheel group 626 to rotate. The eccentric forces generated by the first eccentric wheel group 623 and the third eccentric wheel group 625 cannot be offset after interaction, so that the hammer mechanism 62 performs reciprocating motion in the reciprocating mechanism 61, thereby transmitting the hammer head 63 on the hammer mechanism 62 to hammer the material in the crushing bin.

[0090] In some embodiments, the pitch-changing mechanism 65 includes a connecting frame 651, a connecting cylinder 652 connected to the connecting frame 651, and a pitch-changing cylinder 653 adapted to the connecting frame 651. In some embodiments, a connecting wheel 6511 is provided on one side of the connecting frame 651, and a cylindrical connecting clamping shaft 6512 is provided on the other side. The connecting clamping shaft 6512 is also provided with a positioning pin 6513 and a sliding key 6514. The connecting wheel 6511 is a wheel-type structure with a groove on the rim. The groove of the connecting wheel 6511 is adapted to the clamping hole 647, and the connecting wheel 6511 is clamped in the clamping hole 647. The above structure allows the connecting wheel 6511 to rotate in the clamping hole 647 and also move in accordance with the displacement of the transverse plate 645.

[0091] Furthermore, the connecting card shaft 6512 is adapted to the connecting cylinder 652. In some embodiments, the connecting cylinder 652 is connected to the two sets of gears of the first transmission gear set 621. The connecting cylinder 652 is a hollow structure, and a positioning groove 6521 is provided on its side along the length direction of the connecting cylinder 652. When the connecting frame 651 is connected to the connecting cylinder 652, the connecting card shaft 6512 is connected to the hollow part of the connecting cylinder 652. The positioning pin 6513 and the sliding key 6514 are both located in the positioning groove 6521. By engaging the positioning pin 6513 with the positioning groove 6521, when the connecting cylinder 652 rotates following the first transmission gear set 621, the connecting frame 651 can also rotate following the connecting cylinder 652 through the cooperation of the positioning groove 6521 and the positioning pin 6513. At the same time, the groove of the connecting wheel 6511 adapted to the engaging hole 647 will not prevent the rotation of the connecting frame 651.

[0092] like Figure 8 and Figure 9 As shown, the pitch change cylinder 653 is sleeved on the connecting cylinder 652, and the eccentric wheels of the first eccentric wheel group 623 and the third eccentric wheel group 625 are sleeved on the connecting cylinder 652. In some embodiments, the pitch change cylinder 653 is further provided with an arc groove 6531 adapted to the sliding key 6514 along the length direction of the connecting cylinder 652. The above structure enables the sliding key 6514 to be connected to the arc groove 6531. After the connecting cylinder 652 is connected, the pitch change cylinder 653 can rotate along with the sliding key 6514, thereby driving the eccentric wheel on the pitch change cylinder 653 to rotate. When the transverse plate 645 drives the pitch change mechanism connected to the clamping hole 647, When the structure 65 slides in the direction set by the guide column 646, the sliding key 6514 will slide in the arc groove 6531, thereby driving the connecting tube 652 and the eccentric wheel sleeved on the connecting tube 652 to rotate, so that the angle of the side of the eccentric wheel with the spokes in the first eccentric wheel group 623 and the second eccentric wheel group 624 is changed relative to the eccentric wheel in the third eccentric wheel group 625 and the fourth eccentric wheel group 626, so that the eccentric wheels in the first eccentric wheel group 623 and the third eccentric wheel group 625, the second eccentric wheel group 624 and the fourth eccentric wheel group 626 are all asymmetrically set during the rotation process.

[0093] In some embodiments, the third eccentric wheel group 625 and the fourth eccentric wheel group 626 are respectively connected to the two sets of gears of the second transmission gear group 622, and the third eccentric wheel group 625 and the fourth eccentric wheel group 626 are driven to rotate by the second transmission gear group 622, so that when the eccentric wheels in the first eccentric wheel group 623 and the third eccentric wheel group 625, the second eccentric wheel group 624 and the fourth eccentric wheel group 626 are symmetrically arranged, the hammer mechanism 62 is not in the reciprocating mechanism 6 1 reciprocating motion occurs on the reciprocating mechanism 61; when the eccentric wheels in the first eccentric wheel group 623 and the third eccentric wheel group 625, the second eccentric wheel group 624 and the fourth eccentric wheel group 626 are asymmetrically arranged, the eccentric force generated by the rotation of the first eccentric wheel group 623, the second eccentric wheel group 624, the third eccentric wheel group 625 and the fourth eccentric wheel group 626 causes the hammer mechanism 62 to reciprocate on the reciprocating mechanism 61, and the hammer head 63 connected to the hammer mechanism 62 is driven to hammer the material in the crushing bin.

[0094] like Figure 2 and Figure 4 As shown, the transmission device 3 also includes a force arm 37 connected to the tension wheel 36, and a tension spring 38 connected to the force arm 37. It can be understood that the transmission gear 35 is fixedly mounted on the hammer mechanism 62. When the hammer mechanism 62 reciprocates, the transmission gear 35 will follow the first transmission gear group 621 and the second transmission gear group 622 to reciprocate. By providing the tension wheel 36, when the hammer mechanism 62 reciprocates, the restoring force of the tension spring 38 is utilized to keep the belt connected to the transmission gear 35, the tension wheel 36 and the third pulley 34 in a taut state, thereby avoiding the phenomenon of the belt slipping during the transmission process.

[0095] like Figure 5As shown, the flared jaw plate 53 is arranged at an angle. The above structure enables large-diameter materials to first be squeezed by the large-diameter materials to flip the flared jaw plate 53 after being put into the crushing bin, and then the transverse plate 645 is driven by the distance adjustment mechanism 64 to slide in the direction set by the guide column 646, thereby dragging the distance change mechanism 65 to slide in the direction set by the guide column 646 through the connecting wheel 6511, and using the sliding key 6514 to slide in the arc groove 6531, driving the connecting cylinder 652 and the eccentric wheel sleeved on the connecting cylinder 652 to rotate. It can be understood that the larger the diameter of the large-diameter material, the larger the flipping angle of the flared jaw plate 53, the longer the distance that the pitch-changing mechanism 65 slides along the direction in which the guide column 646 is set, that is, the longer the distance that the sliding key 6514 slides in the arc groove 6531, the larger the rotation angle of the connecting tube 652 and the eccentric wheel sleeved on the connecting tube 652, the larger the amplitude of the reciprocating motion of the hammer mechanism 62 in the reciprocating mechanism 61, that is, the larger the amplitude of the crushing teeth set on the hammer head 63 hammering the large-diameter material, thereby effectively crushing the large-diameter material in the crushing bin. On the other hand, after the large-diameter material in the crushing bin is crushed, the flared jaw plate 53 flips over under the action of its own gravity, thereby driving the transverse plate 645 to slide in the opposite direction along the direction set by the guide column 646, driving the connecting cylinder 652 and the eccentric wheel sleeved on the connecting cylinder 652 to rotate to a symmetrical position, reducing the amplitude of the reciprocating motion of the hammer mechanism 62 in the reciprocating mechanism 61, so that the primary crushing unit for stone conveying can adjust the amplitude and force of the reciprocating motion of the hammer mechanism 62 in the reciprocating mechanism 61 according to the diameter of the material when crushing the material, thereby improving the efficiency and practicality of the primary crushing unit in crushing materials.

[0096] Finally, it should be noted that the embodiments disclosed in the present invention are only preferred embodiments of the present invention, which are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A primary crushing unit for stone conveying, characterized in that: The machine comprises: a machine body, a power device arranged on the machine body, a transmission device connected to the power device, a movable jaw device connected to the transmission device, a static jaw device adapted to the movable jaw device, and a hammer device connected to the transmission device; The hammering device includes: a reciprocating mechanism, a hammering mechanism adapted to the reciprocating mechanism, and a hammer head connected to the hammering mechanism; The hammer mechanism is adapted to the reciprocating mechanism, and is used to make the hammer mechanism reciprocate in the reciprocating mechanism so as to hammer the material in the crushing bin through the hammer head; The reciprocating mechanism includes a first sliding portion and a second sliding portion arranged opposite to each other in an upper and lower direction, and the first sliding portion and the second sliding portion are both movably connected to the hammer mechanism; The first sliding part and the second sliding part have the same structure and both include a sliding shaft, and the sliding shaft is movably connected to the hammer mechanism; The hammer mechanism includes a first transmission gear set, a second transmission gear set, a first eccentric wheel set and a second eccentric wheel set connected to the first transmission gear set, and a third eccentric wheel set and a third eccentric wheel set connected to the second transmission gear set; The first transmission gear set and the second transmission gear set have the same structure, both being transmission structures in which two sets of gears mesh with each other, wherein the first transmission gear set and the second transmission gear set are arranged parallel to each other.

2. A primary crushing unit for stone conveying according to claim 1, characterized in that: The transmission device includes a first pulley and an eccentric shaft connected to the first pulley; The movable jaw device includes a movable jaw plate and a toggle plate hinged to the movable jaw plate, wherein the upper portion of the movable jaw plate is connected to the eccentric shaft through a bearing, and the lower portion is hinged to the toggle plate; The static jaw device includes a static jaw plate adapted to the dynamic jaw plate.

3. A primary crushing unit for stone conveying according to claim 2, characterized in that: The transmission device also includes a second pulley, a third pulley connected to the second pulley, a transmission gear connected to the third pulley, and an elastic pulley adapted to the second pulley and the third pulley; wherein the first pulley and the second pulley are respectively located at two ends of the eccentric shaft; The first transmission gear set and the second transmission gear set are also connected to the transmission gear.

4. A primary crushing unit for stone conveying according to claim 3, characterized in that: The first eccentric wheel group and the second eccentric wheel group are respectively connected to a group of gears in the first transmission gear group, and the third eccentric wheel group and the fourth eccentric wheel group are respectively connected to a group of gears in the second transmission gear group, wherein the first eccentric wheel group, the second eccentric wheel group, the third eccentric wheel group and the fourth eccentric wheel group are each provided with an eccentric wheel; The eccentric wheel is a wheel structure with spokes on only one side of the hub; The number of eccentric wheels in the first eccentric wheel group and the third eccentric wheel group, and the number of eccentric wheels in the second eccentric wheel group and the fourth eccentric wheel group is equal, and the eccentric wheels in the first eccentric wheel group and the third eccentric wheel group, and the second eccentric wheel group and the fourth eccentric wheel group are symmetrically arranged, so that when the first eccentric wheel group, the second eccentric wheel group, the third eccentric wheel group and the fourth eccentric wheel group rotate, the eccentric forces generated by the first eccentric wheel group and the third eccentric wheel group offset each other, and the eccentric forces generated by the second eccentric wheel group and the fourth eccentric wheel group offset each other.

5. A primary crushing unit for stone conveying according to claim 3, characterized in that: The hammering device also includes a distance adjusting mechanism and a distance changing mechanism connected to the distance adjusting mechanism. The distance changing mechanism is also connected to the first eccentric wheel group and the second eccentric wheel group, and is used to adjust the angles of the eccentric wheels in the first eccentric wheel group and the second eccentric wheel group so that the eccentric wheels in the first eccentric wheel group and the third eccentric wheel group, and the second eccentric wheel group and the fourth eccentric wheel group are arranged asymmetrically with each other.

6. A primary crushing unit for stone conveying according to claim 5, characterized in that: The static jaw device further comprises a flared jaw plate hinged to the static jaw plate, wherein the flared jaw plate is hinged to the static jaw plate; The distance adjustment mechanism includes a pressure plate, a first movable joint connected to the pressure plate, a second movable joint, a top plate with two ends movably connected to the first movable joint and the second movable joint respectively, a transverse plate connected to the second movable joint, a guide column slidably connected to the transverse plate, and a clamping hole provided on the transverse plate, wherein the clamping hole is also connected to the distance change mechanism; The pressing plate is connected to the flared jaw plate; The guide post is arranged on the machine body, and the transverse moving plate is sleeved on the guide post, and the transverse moving plate can only slide along the setting direction of the guide post; The two ends of the top plate are hinged to the first movable joint and the second movable joint respectively; The end of the top plate connected to the pressure plate is flipped over to drive the transverse plate connected to the end of the pressure plate away from the top plate to slide in the direction of the guide column, thereby driving the distance changing mechanism connected to the clamping hole to slide in the direction of the guide column.

7. A primary crushing unit for stone conveying according to claim 6, characterized in that: The pitch-changing mechanism includes a connecting frame, a connecting cylinder connected to the connecting frame, and a pitch-changing cylinder adapted to the connecting frame; One side of the connecting frame is provided with a connecting wheel, and the other side is provided with a cylindrical connecting clamping shaft, and the connecting clamping shaft is also provided with a positioning pin and a sliding key; Wherein, the connecting wheel is a wheel structure with a groove on the wheel rim, the groove of the connecting wheel is adapted to the clamping hole, and the connecting wheel is clamped in the clamping hole; The connecting clamping shaft is adapted to the connecting cylinder, and the connecting cylinder is connected to the two sets of gears of the first transmission gear set. The connecting cylinder is a hollow structure, and a positioning groove is provided on its side along the length direction of the connecting cylinder. When the connecting frame is connected to the connecting cylinder, the connecting clamping shaft is connected to the hollow part of the connecting cylinder, and the positioning pin and the sliding key are both located in the positioning groove. The positioning pin is engaged with the positioning groove. When the connecting cylinder rotates following the first transmission gear set, the transmission connecting frame rotates following the connecting cylinder through the cooperation of the positioning groove and the positioning pin.

8. A primary crushing unit for stone conveying according to claim 7, characterized in that: The pitch-changing cylinder is sleeved on the connecting cylinder, and the eccentric wheels of the first eccentric wheel group and the third eccentric wheel group are sleeved on the connecting cylinder; The pitch-changing cylinder is also provided with an arc-shaped groove adapted to the sliding key along the length direction of the connecting cylinder. After the sliding key is connected to the arc-shaped groove, the pitch-changing cylinder rotates along with the sliding key to drive the eccentric wheel on the pitch-changing cylinder to rotate; When the transverse plate drives the variable pitch mechanism connected to the clamping hole to slide in the direction set by the guide column, the sliding key slides in the arc groove to drive the connecting tube and the eccentric wheel sleeved on the connecting tube to rotate, so that the angle of the side of the eccentric wheel with the spoke in the first eccentric wheel group and the second eccentric wheel group is changed relative to the eccentric wheel in the third eccentric wheel group and the fourth eccentric wheel group, so that the eccentric wheels in the first eccentric wheel group and the third eccentric wheel group, the second eccentric wheel group and the fourth eccentric wheel group are all asymmetrically set during the rotation process.

9. A primary crushing unit for stone conveying according to claim 3, characterized in that: The transmission device further includes a force arm connected to the tension wheel and a tension spring connected to the force arm, and the transmission gear is fixedly mounted on the hammer mechanism; The tension wheel is used to make the belt connected with the transmission gear, the tension wheel and the third pulley in a taut state by utilizing the restoring force of the tension spring when the hammer mechanism performs reciprocating motion.

10. A primary crushing unit for stone conveying according to claim 6, characterized in that: The flared jaw is arranged obliquely.

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