CN114558679A

CN114558679A - Crushing device

Info

Publication number: CN114558679A
Application number: CN202210278745.9A
Authority: CN
Inventors: 王旭; 张志业; 雷迪迪; 孙春庆; 杨学文; 李少文
Original assignee: China Railway Construction Heavy Industry Group Co Ltd
Current assignee: China Railway Construction Heavy Industry Group Co Ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-05-31
Anticipated expiration: 2042-03-17
Also published as: CN114558679B

Abstract

The invention discloses a crushing device which comprises a rack, a driving assembly and a plurality of groups of crushing assemblies; the crushing assemblies are arranged on the frame along the material moving direction; the crushing assembly comprises a movable jaw assembly, a movable roller assembly and a tensioning assembly; according to the invention, the crushing cavity for crushing materials is formed between the movable roller component and the movable jaw component, and the multiple crushing cavities formed by the multiple groups of crushing assemblies can crush the materials in multiple stages, so that the crushing efficiency is high.

Description

Crushing device

Technical Field

The invention relates to the technical field of crushing, in particular to a crushing device.

Background

The jaw crusher has simple structure, convenient use and maintenance, safe and reliable work and very wide application in the sandstone mine industry; because jaw breaker's crushing ratio is 3 ~ 5, in the production line, need increase equipment such as impact breakage behind jaw breaker and carry out well garrulous to the building stones, just can produce required grit, need increase belt pulley and space and arrange the production line to, jaw breaker at present stage only one-level is broken and can not sieve the material, has the breakage ratio low, the lower scheduling problem of work efficiency.

The main reasons for the above problems are: 1. most jaw crushers only have one-stage crushing, and the crushing ratio is small; 2. the jaw crusher can not sieve materials, lacks the material grading function and has the over-crushing phenomenon; 3. the material falls under the action of gravity, the moving speed of the material in the crushing cavity is low, and the crushing capacity is influenced by the low crushing speed.

To sum up, the problem that the crushing device lacks multistage breakage, does not possess screening plastic function and crushing efficiency is low among the prior art is urgently needed to be solved.

Disclosure of Invention

The invention aims to provide a crushing device to solve the problems that multistage crushing is lacked, the screening and shaping functions are not available and the crushing efficiency is low in the prior art, and the specific technical scheme is as follows:

a crushing device is characterized by comprising a rack, a driving assembly and a plurality of groups of crushing assemblies;

the multiple groups of crushing assemblies are arranged on the rack along the material moving direction; the crushing assembly comprises a movable jaw assembly, a movable roller assembly and a tensioning assembly; the movable jaw assembly and the movable roller assembly are arranged on the frame, and a crushing cavity is formed between the movable jaw assembly and the movable roller assembly; the two ends of the tensioning assembly are respectively connected with the frame and the movable jaw assembly; the crushing cavities formed by the plurality of groups of crushing assemblies are communicated; the driving assembly comprises a movable jaw driving component and a movable roller driving component; the movable jaw driving assembly is connected with the movable jaw assembly and is used for driving the movable jaw assembly to do eccentric motion; the movable roller driving assembly is connected with the movable roller assembly and used for driving the movable roller assembly to rotate.

Preferably, in the above technical solution, the movable jaw assembly includes an eccentric shaft, a movable jaw, and a jaw plate; the eccentric shaft is arranged on the frame and connected with the movable jaw driving assembly; the movable jaw is eccentrically matched with the eccentric shaft; the jaw plate is arranged on the movable jaw, and a crushing cavity is formed between the jaw plate and the movable roller assembly.

Preferably, the tensioning assembly comprises a supporting seat, a pull rod, a nut and an elastic piece; the supporting seat is arranged on the rack; one end of the pull rod is connected with a nut, and the other end of the pull rod is hinged with the movable jaw; the elastic piece sets up between supporting seat and nut, and the elastic piece flexible direction is unanimous with the pull rod axial.

According to the preferred technical scheme, the outlet widths L of the multiple groups of crushing cavities are sequentially reduced along the moving direction of the material; the included angle between the jaw plate and the movement direction of the material is omega, and omega formed by the multiple groups of movable jaw assemblies is reduced in sequence along the movement direction of the material.

Preferably, the crushing assembly further comprises an adjusting assembly for adjusting the width L of the outlet of the crushing cavity; the adjusting component comprises an elbow pad, an elbow plate and two groups of adjusting parts; the adjusting piece comprises an adjusting screw, a connecting seat and a wedge-shaped block; the connecting seat is arranged on the frame; the adjusting screw is in threaded connection with the connecting seat, one end of the adjusting screw is hinged with the wedge-shaped block, and the wedge-shaped blocks of the two groups of adjusting parts are in wedge-shaped fit; the toggle pad is arranged between the toggle plate and the wedge blocks, toggle plate moving grooves are formed in the toggle pad and the moving jaw, two ends of the toggle plate are arranged in the toggle plate moving grooves respectively, and the wedge blocks drive the toggle plate and the moving jaw to move so as to adjust the outlet width L.

Preferably, in the above technical solution, the movable jaw driving assembly includes a first power element, a first chain, and a first gear transmission mechanism; the output end of the first power part is connected with the eccentric shaft of the movable jaw assembly through a first gear transmission mechanism; the eccentric shafts of the multiple groups of movable jaw assemblies are matched with each other through a first chain and a gear to transmit power;

preferably, in the above technical solution, the moving roller driving assembly includes a second power member, a second chain and a second gear transmission mechanism; the second power part is connected with a group of moving roller components through a second gear transmission mechanism; the power transmission is carried out between the movable roller assemblies of the multiple groups of crushing assemblies through the matching of the second chain and the gear; the second gear transmission mechanism comprises an incomplete gear arranged on the output end of the second power part and a matching gear arranged on the movable roller component.

Preferably, the movable roller assembly comprises a plurality of roller single pieces arranged on the frame along the material moving direction; the roller single piece comprises a movable roller and a movable roller shaft, and the movable roller shaft are coaxially arranged; the moving roll shaft is connected with a matching gear of the second gear transmission mechanism.

In the above technical solution, preferably, the movable roller has a regular prism shape.

Above technical scheme is preferred, when the material was moved to the highest position far away from to the jaw, at least one side of action roller and the relative parallel arrangement of jaw of highest position.

According to the preferable technical scheme, the lining plate is detachably arranged on the side surface of the movable roller; the shape and specification of the lining plate are matched with the side surface of the moving roller; and a plurality of groups of bulges are arranged on the lining plate.

The technical scheme of the invention has the following beneficial effects:

(1) the crushing device comprises a rack, a driving assembly and a plurality of groups of crushing assemblies; the multiple groups of crushing assemblies are arranged on the rack along the material moving direction; the crushing assembly comprises a movable jaw assembly, a movable roller assembly and a tensioning assembly; according to the invention, the crushing cavity for crushing materials is formed between the movable roller component and the movable jaw component, and the multiple crushing cavities formed by the multiple groups of crushing assemblies can crush the materials in multiple stages, so that the crushing efficiency is high.

(2) The eccentric shaft and the movable jaw are eccentrically matched, the eccentric shaft can drive the movable jaw to eccentrically move around the eccentric shaft under the driving of the movable jaw driving assembly, and the jaw plate arranged on the movable jaw moves along with the movable jaw, so that materials in the crushing cavity are extruded and crushed.

(3) The tensioning assembly can provide elastic tension for the movable jaw, and the orderly extrusion work is ensured.

(4) The outlet widths L of the multiple groups of crushing cavities and the horizontal included angles omega of the jaw plates are sequentially reduced, so that the function of graded crushing can be realized, and the crushing efficiency is improved.

(5) According to the invention, the size of the outlet width L of the crushing cavity is adjusted by the adjusting component, namely when the outlet width L of the crushing cavity needs to be reduced, the screw thread of the adjusting screw is screwed in, and the two wedge-shaped blocks slide relatively, so that the toggle plate is driven by one group of wedge-shaped blocks to downwards extrude the movable jaw, further the outlet width L of the crushing cavity is reduced, when the outlet width L of the crushing cavity needs to be increased, the screw thread of the adjusting screw is retracted, and the movable jaw is upwards brought up by the tensioning assembly, so that the outlet width L of the crushing cavity is increased.

(6) The movable jaw driving assembly is provided with a group of first power parts, and power transmission is carried out through the first chain and the gear, so that extrusion power can be provided for a plurality of groups of crushing assemblies; the driving component of the movable roller can provide power for the roller single pieces of a plurality of groups of crushing assemblies, and can ensure intermittent movement of materials and crushing effect by arranging the incomplete gear.

(7) The movable roller assembly comprises a plurality of roller single pieces arranged on the rack along the material moving direction, and after the material is crushed, the material with the particle size smaller than the gap between the two groups of roller single pieces falls downwards to ensure the crushing uniformity of the material; in addition, the invention can select the installation distance between the roller single pieces according to the actual situation, thereby screening out the materials with the required specification.

(8) The moving roller of the invention adopts a regular prism shape, which can effectively improve the crushing effect; when the jaw plate moves upwards to the highest position, at least one side surface of the movable roller is parallel to the jaw plate, so that when the jaw plate moves downwards to extrude materials, the materials cannot be located between the jaw plate and the side edge of the movable roller, the movable roller can be effectively protected, and meanwhile, the pressure required by extruding the materials is reduced.

(9) The lining plates are detachably arranged on the side surfaces of the moving rollers, so that the lining plates can be quickly replaced according to the abrasion condition of the lining plates, and the distance between the two groups of roller single parts can be reduced or increased by uniformly replacing the lining plates with different thicknesses, so that the working condition of materials with small particle size or large particle size can be matched; the multiunit arch on the welt can polish the plastic to the material.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic view of the crushing apparatus of the present embodiment;

FIG. 2 is a schematic view of the frame of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1;

fig. 4 is a schematic structural view of the movable jaw assembly of fig. 1;

FIG. 5 is a schematic view of a single piece of rollers of the moving roller assembly of FIG. 1;

FIG. 6 is a schematic view of the liner construction on a single piece of the roll of FIG. 5;

FIG. 7 is a schematic structural view of the take-up assembly of FIG. 1;

FIG. 8 is a schematic structural view of the adjustment assembly of FIG. 1;

FIG. 9 is a schematic view of the structure of the drive assembly of the movable roller of FIG. 1 (the second chain is not shown);

wherein, 1, a frame; 1.1, mounting frames; 2. a drive assembly; 2.1, a movable jaw driving component; 2.11, a first power part; 2.12, a first chain; 2.2, a movable roller driving component; 2.21, a second power part; 2.22, a second chain; 2.23, a second gear transmission mechanism; 2.231, incomplete gear; 2.232, matching gears; 3.a crushing assembly; a, crushing cavity; 3.1, moving jaw components; 3.11, an eccentric shaft; 3.12, moving the jaw; 3.13, jaw plates; 3.2, a movable roller component; 3.21, a moving roller; 3.22, a movable roll shaft; 3.23, a lining plate; 3.23a, a bump; 3.3, a tensioning assembly; 3.31, a supporting seat; 3.32, a pull rod; 3.33, nut; 3.34, an elastic piece; 3.35, a gasket; 3.36, a pin shaft; 3.4, adjusting the component; 3.41, toggle plates; 3.42, elbow pad; 3.43, adjusting parts; 3.431, adjusting screw; 3.432, a connecting seat; 3.433 wedge.

Detailed Description

Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.

Example (b):

the utility model provides a crushing device, includes that frame 1, drive assembly and the broken assembly 3 of multiunit, this embodiment has illustrated three broken assemblies 3 of group, and the broken assembly 3 of multiunit can carry out multistage breakage to the material to guarantee crushing efficiency, as shown in fig. 1 to fig. 9, specifically as follows:

as shown in fig. 1 and 2, the frame 1 of the present embodiment comprises a frame single piece in one-to-one correspondence with the crushing assemblies 3; a plurality of groups of rack single pieces are connected along the horizontal direction (namely the material moving direction) to form a total rack 1; the inside wall of preferred frame 1 is provided with wear-resisting material's curb plate, avoids the material to cause wearing and tearing to the frame body, and frame 1 lower extreme is open state for the material can fall out from the lower extreme.

The crushing assembly 3 comprises a movable jaw assembly 3.1, a movable roller assembly 3.2, a tensioning assembly 3.3 and an adjusting assembly 3.4, and the concrete steps are as follows:

as shown in fig. 1, 3 and 4, the movable jaw assembly 3.1 includes an eccentric shaft 3.11, a movable jaw 3.12 and a jaw plate 3.13; the eccentric shaft 3.11 is mounted on the frame 1 through a bearing structure, the eccentric shaft 3.11 is eccentrically matched (for example, hole matched) with the movable jaw 3.12, the eccentric shaft 3.11 is connected with a driving assembly (specifically, a movable jaw driving assembly), and the driving assembly provides power to drive the eccentric shaft 3.11 to rotate, so that the movable jaw 3.12 eccentrically moves around the eccentric shaft 3.11; the jaw plate 3.13 is arranged at the lower end of the movable jaw 3.12, the jaw plate 3.13 is an extrusion part directly contacted with the material, and the jaw plate 3.13 performs eccentric motion along with the movable jaw 3.12, so that the jaw plate 3.13 can extrude and crush the material; the jaw 3.13 (the jaw 3.13 when located at the lowest position) has an angle ω with the moving direction of the material, and ω formed by the jaws 3.13 of the multiple crushing assemblies 3 decreases sequentially along the moving direction of the material (preferably, the first group ω is 25 °, the second group ω is 21 °, and the second group ω is 17 °). In order to increase the pressing effect, corrugated projections can be provided on the contact surface of the jaw 3.13 with the material.

As shown in fig. 3, 5 and 6, the movable roller assembly 3.2 includes a plurality of roller units arranged along the moving direction of the material, and a crushing cavity 3.a for crushing the material is formed between the roller units and the jaw 3.13, in this embodiment, three groups of crushing assemblies 3 form three groups of crushing cavities 3.a, the three groups of crushing cavities 3.a are communicated to form a crushing channel, and the outlet widths L of the groups of crushing cavities 3.a are sequentially reduced along the moving direction of the material (the outlet width L is the vertical distance between the jaw and the roller unit when the jaw rises to the highest position); the roller singleness of this embodiment specifically includes movable roller 3.21 and movable roller axle 3.22, and movable roller 3.21 and movable roller axle 3.22 are coaxial setting, and movable roller axle 3.22 passes through the bearing and installs in frame 1, and movable roller axle 3.22 is connected with drive assembly (specifically the movable roller drive assembly), and drive assembly provides drive power, and then can drive movable roller 3.21 and rotate. In this embodiment, the shape of the rotor 3.21 of 1 is preferably regular prism (regular seven prism in this embodiment); 2. when the jaw 3.13 is lifted to the highest position, the movable roller 3.21 of the roller unit has one side surface which is relatively parallel to the jaw 3.13, the side surface can be directly contacted with the material, when the jaw plate 3.13 is pressed down from the highest position to the lowest position, the rotating roller 3.21 does not rotate, and because the pressing action of the jaw plates 3.13 of the three movable jaw assemblies 3.1 is asynchronous in the embodiment (the reason for the asynchronism is to avoid insufficient driving power caused by the simultaneous material extrusion of the multiple jaw plates 3.13), the initial angles of the roll segments in the three sets of roller assemblies 3.2 of this embodiment are therefore different in order to match the asynchronously pressed jaws 3.13, for example, when the first group of the jaws 3.13 is lifted to the highest position, all the movable rollers 3.21 in the first group of the movable roller assemblies 3.2 have one side surface which is relatively parallel to the first group of the jaws 3.13, and all the movable rollers 3.21 in the first group of the movable roller assemblies 3.2 are kept still in the process of pressing down the first group of the jaws 3.13; when the first set of jaw 3.13 is lifted, the second set of jaw 3.13 is also lifted, all the movable rollers 3.21 of the three sets of movable roller assemblies 3.2 rotate, one side of all the movable rollers 3.21 of the second set of movable roller assemblies 3.2 rotates to be parallel to the second set of jaw 3.13 (the second set of jaw 3.13 reaches the highest position), then the second set of jaw 3.13 is pressed downwards, all the movable rollers 3.21 of the second set of movable roller assemblies 3.2 are kept still in the pressing-down process, and so on, the asynchronous pressing-down action of the jaw 3.13 is matched through the intermittent movement of a single roller; 3. each side surface of the movable roller 3.21 is detachably provided with a lining plate 2.23 made of wear-resistant materials, and the shape and size specification of the lining plate 2.23 are consistent with those of the side surface of the movable roller 3.21; the detachable mounting mode of the lining plate 2.23 can be installed by referring to the existing bolt; the lining plate 2.23 is provided with a plurality of groups of bulges 3.23a at equal intervals (such as 5-60cm) along the axial direction of the movable roller 3.21, and the bulges 3.23a are used for grinding materials.

As shown in fig. 1, 3 and 7, the tensioning assembly 3.3 is used for providing elastic tension for the movable jaw 3.12, and the tensioning assembly 3.3 comprises a supporting seat 3.31, a pull rod 3.32, a nut 3.33 and an elastic element 3.34; the supporting seat 3.31 is installed on the frame 1 (specifically, installed on the mounting bracket 1.1 of the frame 1), the pull rod 3.32 penetrates through the supporting seat 3.31, the pull rod 3.32 can slide relative to the supporting seat 3.31, the nut 3.33 is in threaded connection with the upper end of the pull rod 3.32 (the upper end of the pull rod is a threaded section), the lower end of the pull rod 3.32 is hinged to the movable jaw 3.12 through a pin shaft 3.36, the elastic part 3.34 (such as a spring) is sleeved on the pull rod 3.32, the elastic part 3.34 is located between the supporting seat 3.31 and the nut 3.33, and the telescopic direction of the elastic part 3.34 is axially consistent with that of the pull rod 3.32. Preferably, a washer 3.35 is arranged between the nut 3.33 and the spring 3.34.

As shown in fig. 1, 3 and 8, the adjusting assembly 3.4 is used for adjusting the outlet width L of the crushing cavity 3.a, the upper end of the frame 1 of this embodiment is provided with a mounting frame 1.1 corresponding to the adjusting assembly 3.4, and the adjusting assembly 3.4 is arranged in the mounting frame 1.1, specifically: the adjusting assembly 3.4 comprises a toggle plate 3.41, a toggle pad 3.42 and two sets of adjusting pieces 3.43, wherein the two sets of adjusting pieces 3.43 and the toggle pad 3.42 are both arranged in the mounting frame 1.1; the adjusting piece 3.43 comprises an adjusting screw 3.431, a connecting seat 3.432 and a wedge-shaped block 3.433; connecting seat 3.432 is fixed on one horizontal end of mounting bracket 1.1, adjusting screw 3.431 is horizontally arranged to penetrate through connecting seat 3.432, and adjusting screw 3.431 and connecting seat 3.432 are in threaded fit, one end of adjusting screw 3.431 is hinged with wedge-shaped block 3.433, and wedge-shaped block 3.433 of two groups of adjusting members 3.43 is in wedge-shaped fit (sliding fit); the toggle pad 3.42 is arranged between the set of wedge blocks 3.433 and the toggle plate 3.41, and the toggle pad 3.42 and the movable jaw 3.12 are both provided with toggle plate movable grooves for mounting the toggle plate 3.41, and two ends of the toggle plate 3.41 are respectively positioned in the toggle plate movable grooves. The working process of the adjusting assembly 3.4 is as follows: when the outlet width L of the crushing cavity 3.a needs to be reduced, the adjusting screw 3.431 is screwed in, the two sets of wedge blocks 3.433 slide relatively, so that the one set of wedge blocks 3.433 close to the elbow pad 3.42 drives the elbow pad 3.42 to move downwards, the elbow pad 3.42 drives the elbow plate 3.41 to abut against the movable jaw 3.12, the elbow plate 3.41 continuously screws in along with the adjusting screw 3.431, the elbow plate 3.41 continuously drives the movable jaw 3.12 to move downwards, and the outlet width L of the crushing cavity 3.a is reduced; when the outlet width L of the crushing chamber 3.a needs to be increased, the adjusting screw 3.431 is screwed back, and the nut 3.33 on the tightening assembly is screwed in, so that the movable jaw 3.12 is lifted upwards, and the outlet width L of the crushing chamber 3.a is increased. Preferably, a backing plate is provided between the elbow pad 3.42 and the wedge 3.433.

The drive assembly includes and moves jaw drive assembly 2.1 and move roller drive assembly 2.2, moves jaw drive assembly 2.1 and is used for driving and moves jaw assembly 3.1 and carries out eccentric motion, moves roller drive assembly 2.2 and is used for driving and moves roller assembly 3.2 and rotate, specifically as follows:

as shown in fig. 1, the movable jaw driving assembly 2.1 includes a first power member 2.11, a first chain 2.12 and a first gear transmission mechanism; the output end of the first power element 2.11 (such as a motor) is connected with the eccentric shafts 3.11 of the three movable jaw assemblies 3.1 through a first gear transmission mechanism (refer to the existing gear transmission), the first power element 2.11 can drive the eccentric shafts 3.11 to rotate, and the eccentric shafts 3.11 of the three movable jaw assemblies 3.1 in the embodiment are in power transmission through the matching of the first chain 2.12 and the gear, namely, the first power element 2.11 works to drive the three movable jaw assemblies 3.1 to perform eccentric motion.

As shown in fig. 1 and 9, the movable jaw driving assembly 2.1 includes a second power member 2.21, a second chain 2.22 and a second gear transmission mechanism 2.23; the second power part 2.21 (such as a motor) is connected with the moving roller assemblies 3.2 (specifically, the moving roller shafts 3.22) of the crushing assemblies 3 through the second gear transmission mechanism 2.23, and can drive the moving roller shafts 3.22 to rotate, in the embodiment, power transmission is performed between the multiple moving roller shafts 3.22 in the three moving roller assemblies 3.2 through the matching of the second chains 2.22 and the gears, namely, all the moving roller shafts 3.22 can be driven to rotate through the action of the second power part 2.21; the second gear transmission mechanism 2.23 comprises an incomplete gear 2.231 and a matching gear 2.232, the incomplete gear 2.231 is fixed at the output end of the second power part 2.21, the incomplete gear 2.231 can be meshed with the matching gear 2.232, the matching gear 2.232 is fixed on a moving roller shaft 3.22 of a group of roller single pieces, the intermittent rotation of the roller single pieces can be realized by arranging the incomplete gear 2.231, and one side face of the moving roller 3.21 can be kept to be relatively parallel to a jaw plate 3.13 which is lifted to the highest position after the roller single pieces rotate. The incomplete gear 2.231 in this embodiment is designed according to the requirement of material feeding speed and the action parameters of the movable jaw 3.12, referring to the prior art, and the first power member 2.11 and the second power member 2.21 in this embodiment are connected with an external control system (referring to the prior art) which is used for controlling the working state of the first power member and the second power member.

The working process of the crushing device of the embodiment is as follows:

the embodiment has three-stage crushing, which respectively corresponds to three groups of crushing assemblies 3, specifically as follows:

1. first-stage crushing: the material enters a first-stage crushing cavity 3.a, a movable jaw 3.12 of a first-stage crushing assembly 3 eccentrically moves at the moment, a jaw plate 3.13 is driven by the movable jaw 3.12 to downwards extrude the material, the material with the particle size smaller than the gap between two sets of roller single pieces falls downwards after the material is crushed, a movable roller driving component 2.2 drives all the roller single pieces to rotate, and the material is conveyed forwards;

2. secondary crushing: the material in the first-stage crushing cavity 3.a enters the second-stage crushing cavity 3.a, the material in the second-stage crushing cavity 3.a is extruded and crushed downwards by a jaw plate 3.13 of the second-stage crushing assembly 3, the material with the particle size smaller than the gap between the two sets of roller single pieces falls downwards, the movable roller driving component 2.2 drives all the roller single pieces to rotate, and the material is conveyed forwards;

3. three-stage crushing: the material in the second-stage crushing cavity 3.a enters the third-stage crushing cavity 3.a, the material in the third-stage crushing cavity 3.a is extruded and crushed downwards by a jaw plate 3.13 of the third-stage crushing assembly 3, the material with the particle size smaller than the gap between the two sets of roller singlets falls downwards, and the material is crushed into the required specification basically through the third-stage crushing.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The crushing device is characterized by comprising a rack (1), a driving assembly (2) and a plurality of groups of crushing assemblies (3);

a plurality of groups of crushing assemblies (3) are arranged on the frame (1) along the material moving direction;

the crushing assembly (3) comprises a movable jaw assembly (3.1), a movable roller assembly (3.2) and a tensioning assembly (3.3); the movable jaw assembly (3.1) and the movable roller assembly (3.2) are both arranged on the frame (1), and a crushing cavity (3.a) is formed between the movable jaw assembly (3.1) and the movable roller assembly (3.2); two ends of the tensioning component (3.3) are respectively connected with the frame (1) and the movable jaw component (3.1); the crushing cavities (3.a) formed by the plurality of groups of crushing assemblies (3) are communicated;

the driving assembly (2) comprises a movable jaw driving component (2.1) and a movable roller driving component (2.2); the movable jaw driving component (2.1) is connected with the movable jaw component (3.1) and is used for driving the movable jaw component (3.1) to do eccentric motion; the moving roller driving component (2.2) is connected with the moving roller component (3.2) and is used for driving the moving roller component (3.2) to rotate.

2. The crushing device according to claim 1, characterized in that the movable jaw assembly (3.1) comprises an eccentric shaft (3.11), a movable jaw (3.12) and a jaw plate (3.13); the eccentric shaft (3.11) is arranged on the frame (1), and the eccentric shaft (3.11) is connected with the movable jaw driving assembly (2.1); the movable jaw (3.12) is eccentrically matched with the eccentric shaft (3.11); the jaw plate (3.13) is arranged on the movable jaw (3.12), and a crushing cavity (3.a) is formed between the jaw plate (3.13) and the movable roller assembly (3.2).

3.A crushing device according to claim 2, characterized in that the tightening assembly (3.3) comprises a support seat (3.31), a tie rod (3.32), a nut (3.33) and an elastic element (3.34); the supporting seat (3.31) is arranged on the rack (1); one end of the pull rod (3.32) is connected with a nut (3.33), and the other end of the pull rod is hinged with the movable jaw (3.12); the elastic piece (3.34) is arranged between the support seat (3.31) and the nut (3.33), and the extension direction of the elastic piece (3.34) is consistent with the axial direction of the pull rod (3.32).

4. A crushing plant according to claim 2, characterized in that the outlet widths L of the groups of crushing chambers (3.a) decrease in succession in the direction of movement of the material; the included angle between the jaw plates (3.13) and the movement direction of the material is omega, and omega formed by the multiple groups of movable jaw components (3.1) is reduced in sequence along the movement direction of the material.

5. A crushing device according to claim 4, characterized in that the crushing assembly (3) further comprises an adjustment assembly (3.4) for adjusting the outlet width L of the crushing chamber (3. a); the adjusting assembly (3.4) comprises a toggle pad (3.42), a toggle plate (3.41) and two groups of adjusting pieces (3.43); the adjusting piece (3.43) comprises an adjusting screw rod (3.431), a connecting seat (3.432) and a wedge-shaped block (3.433); the connecting seat (3.432) is arranged on the frame (1); the adjusting screw (3.431) is in threaded connection with the connecting seat (3.432), one end of the adjusting screw (3.431) is hinged to the wedge-shaped block (3.433), and the wedge-shaped blocks (3.433) of the two groups of adjusting parts (3.43) are in wedge-shaped fit; the toggle pad (3.42) is arranged between the toggle plate (3.41) and the wedge blocks (3.433), toggle plate moving grooves are formed in the toggle pad (3.42) and the movable jaw (3.12), two ends of the toggle plate (3.41) are respectively arranged in the toggle plate moving grooves, and the wedge blocks (3.433) drive the toggle plate (3.41) and the movable jaw (3.12) to move so as to adjust the outlet width L.

6. A crushing device according to any one of claims 2-5, characterized in that the movable jaw drive assembly (2.1) comprises a first power member (2.11), a first chain (2.12) and a first gear transmission; the output end of the first power part (2.11) is connected with an eccentric shaft (3.11) of a group of movable jaw components (3.1) through a first gear transmission mechanism; eccentric shafts (3.11) of the multiple groups of movable jaw assemblies (3.1) are in power transmission through the cooperation of a first chain (2.12) and a gear;

the moving roller driving component (2.2) comprises a second power part (2.21), a second chain (2.22) and a second gear transmission mechanism (2.23); the second power part (2.21) is connected with a group of moving roller components (3.2) through a second gear transmission mechanism (2.23); the power transmission is carried out among the movable roller assemblies (3.2) of the multiple groups of crushing assemblies (3) through the matching of the second chains (2.22) and the gears; the second gear transmission mechanism (2.23) comprises a incomplete gear (2.231) arranged on the output end of the second power member (2.21) and a matching gear (2.232) arranged on the movable roller component (3.2).

7. A crushing plant according to claim 6, characterized in that the moving roll assembly (3.2) comprises a plurality of roll units arranged on the frame (1) in the direction of movement of the material; the roller single piece comprises a moving roller (3.21) and a moving roller shaft (3.22), and the moving roller (3.21) and the moving roller shaft (3.22) are coaxially arranged; the moving roll shaft (3.22) is connected with a matching gear (2.232) of the second gear transmission mechanism (2.23).

8. A crushing device according to claim 7, characterized in that the shape of the rotor (3.21) is regular prism-like.

9. A crushing device according to claim 8, characterized in that at least one side of the moving roll (3.21) is arranged parallel to the uppermost jaw (3.13) when the jaw (3.13) is moved away from the material to the uppermost position.

10. The crushing device according to claim 8, characterized in that a lining plate (3.23) is detachably arranged on the side surface of the moving roll (3.21); the shape and the specification of the lining plate (3.23) are matched with the side surface of the moving roller (3.21); the lining plate (3.23) is provided with a plurality of groups of bulges (3.23 a).