Efficient aggregate crushing equipment

Abstract

The utility model relates to efficient aggregate crushing equipment. Comprising a support, a crushing box provided with a feeding hopper and a discharging hopper is installed on the support, and a filter sieve is installed in the discharging hopper; an upper crushing roller device and a lower crushing roller device are mounted in the crushing box, and an upper guide plate is arranged between the two crushing roller devices; the upper smashing roller device comprises an upper fixed roller assembly and an upper fixed material blocking structure which are fixed in position, further comprises an upper movable roller assembly and an upper movable material blocking structure which can move synchronously, and further comprises an upper distance adjusting assembly and an upper rotation drive. The lower smashing roller device comprises a lower fixed roller assembly and a lower fixed material blocking structure which are fixed in position, further comprises a lower movable roller assembly and a lower movable material blocking structure which can move synchronously, and further comprises a lower distance adjusting assembly and a lower rotation drive. The aggregate crushing device can crush aggregate twice, is good in crushing effect and high in working efficiency, can adjust the gap between the two crushing rollers according to the size of the aggregate to be crushed, and is high in adaptability.

Description

Technical Field

[0001] The utility model belongs to the technical field of crushing equipment, and in particular relates to a high-efficiency aggregate crushing equipment. Background Art

[0002] Cattle bones are the bones of cattle of the genus Bovis or buffalo of the genus Buffalo in the family Bovidae. They can be used as traditional Chinese medicine and have the effects of curing paralysis, stopping malaria, and healing sores. They are often used for arthritis, diarrhea, malaria, and rickets. They also have extremely high nutritional value: cattle bones contain calcium phosphate and calcium carbonate, which can supplement calcium. Cattle bones contain a variety of amino acids needed by the human body. Cattle bones are rich in collagen, which can make the skin more beautiful and elastic.

[0003] At present, people often process cattle bones into bone powder to obtain repeated resource utilization. In the production process of bone powder, it is necessary to use a grinder to crush the bones and screen them after crushing, so that the aggregates are processed into powder, which is convenient to use, and the use of mechanized production equipment can greatly improve the production efficiency of bone powder. The structure of the traditional grinder is relatively simple, mainly using a pair of crushing rollers rotating in opposite directions to crush the aggregates put into the grinder.

[0004] However, in the actual working process, it was found that the following defects exist when using the above-mentioned traditional crusher to crush aggregate: first, the gap between the pair of crushing rollers in the above-mentioned crusher is fixed. If the size of the aggregate exceeds the applicable material size of the crusher, the aggregate cannot be crushed or the crushing effect is seriously affected, and the applicable working conditions are relatively single; in addition, the traditional crusher is only equipped with a pair of crushing rollers. In the actual working process, only a single crushing operation can be performed on the aggregate. The particle size of the crushed aggregate is still large, the crushing effect is relatively poor, and the working efficiency is low. Utility Model Content

[0005] The utility model provides an efficient aggregate crushing device with reasonable structural design and good crushing effect to solve the technical problems existing in the known technology. The utility model can perform two crushing operations on the aggregate, with good crushing effect and high working efficiency. In addition, the utility model can adjust the gap between the two crushing rollers according to the size of the aggregate to be crushed, and has strong adaptability.

[0006] The utility model adopts the following technical scheme to solve the technical problems existing in the known technology: a high-efficiency aggregate crushing equipment comprises a bracket, a crushing box is installed on the bracket, a feed hopper is installed at the top open part of the crushing box, a discharge hopper is installed at the bottom open part, and a filter screen is installed in the discharge hopper; an upper crushing roller device and a lower crushing roller device are installed in the crushing box, two groups of upper guide plates are arranged between the upper crushing roller device and the lower crushing roller device, which are used to guide the materials crushed by the upper crushing roller device into the lower crushing roller device, and a lower material guide hopper is arranged above the upper crushing roller device, which is used to guide the materials dropped from the feed hopper into the upper crushing roller device; the upper crushing roller device comprises an upper fixed roller assembly and an upper fixed material stopper which are fixed in position and installed in the crushing box The structure also includes an upper movable roller assembly and an upper movable material blocking structure installed in the crushing box and capable of synchronously moving laterally, and also includes an upper distance adjusting assembly and an upper rotary drive installed on the crushing box, which are used to adjust the gap between the upper movable roller assembly and the upper fixed roller assembly and drive the upper movable roller assembly and the upper fixed roller assembly to rotate synchronously in the opposite direction; the lower crushing roller device includes a lower fixed roller assembly and a lower fixed material blocking structure installed in the crushing box and capable of synchronously moving laterally, and also includes a lower movable roller assembly and a lower movable material blocking structure installed in the crushing box and capable of synchronously moving laterally, and also includes a lower distance adjusting assembly and a lower rotary drive installed on the crushing box, which are used to adjust the gap between the lower movable roller assembly and the lower fixed roller assembly and drive the lower movable roller assembly and the lower fixed roller assembly to rotate synchronously in the opposite direction.

[0007] The advantages and positive effects of the utility model are as follows: the utility model provides a high-efficiency aggregate crushing equipment, which can perform primary crushing and secondary crushing operations on the aggregate put into the crushing box by arranging an upper crushing roller device and a lower crushing roller device distributed in an upper and lower manner. Compared with the traditional single crushing, the secondary crushing operation of the utility model improves the crushing effect; by arranging an upper distance adjusting component and an upper rotary drive, the upper movable roller component and the upper movable material blocking structure can be driven to move, and then the gap between the upper movable roller component and the upper fixed roller component can be adjusted, so that the upper crushing roller device can meet the crushing requirements of aggregates of different sizes, and has strong applicability; by arranging a lower distance adjusting component and a lower rotary drive, the lower movable roller component and the lower movable material blocking structure can be driven to move horizontally, and then the gap between the lower movable roller component and the lower fixed roller component can be adjusted, and then the crushing degree of the secondary crushing can be adjusted, thereby improving the crushing effect of the aggregate; by arranging a filter screen, the material that has completed the two crushing operations can be screened, so as to facilitate the collection of bone powder that meets the requirements.

[0008] Preferably: the upper distance adjusting assembly includes a first guide mechanism and a second guide mechanism respectively installed on two opposite side walls of the crushing box, and slider-type bearing seats are slidably connected to the first guide mechanism and the second guide mechanism, which are used to connect the two ends of the upper movable roller assembly, and a laterally arranged distance adjusting screw is pivotally connected to each slider-type bearing seat, the distance adjusting screw is passed through a screw seat installed on the crushing box and connected to the screw seat through a locking nut, and also includes a movable mounting seat connected to the distance adjusting screw through a nut and passed through a strip hole opened on the side wall of the crushing box, which is used to install the upper movable material blocking structure, and also includes a transmission gear mechanism, which is used to transmission connect the upper movable roller assembly and the upper fixed roller assembly; the structure of the lower distance adjusting assembly is consistent with the structure of the upper distance adjusting assembly.

[0009] Preferably: the first guide mechanism includes two groups of shaft seat guides fixedly connected to the front side wall of the crushing box and distributed up and down, and both groups of shaft seat guides are slidably connected to the slider type bearing seat; the second guide mechanism includes a gear seat plate and shaft seat guides fixedly connected to the rear side wall of the crushing box and distributed up and down, and both the gear seat plate and the shaft seat guides are slidably connected to the slider type bearing seat.

[0010] Preferably: the transmission gear mechanism includes a stationary roller gear connected to the end key of the upper fixed roller assembly, and also includes a movable roller gear connected to the end key of the upper movable roller assembly and located on the same side as the stationary roller gear, and also includes a first transmission gear installed on the gear base plate, the first transmission gear is meshed with the stationary roller gear, and also includes a second transmission gear installed on the gear base plate, the longitudinal position of which can be adjusted and meshed with the first transmission gear.

[0011] Preferably: the upper movable roller assembly includes a transversely arranged crushing shaft, on which a plurality of groups of equally spaced mounted cutter discs are key-connected, and on the outer peripheral surface of each mounted cutter disc are mounted a plurality of groups of bone crushing knives evenly distributed in the circumferential direction, and between two adjacent groups of mounted cutter discs a sleeve key-connected to the crushing shaft is arranged for limiting the position of the two adjacent groups of mounted cutter discs; the structure of the upper fixed roller assembly is consistent with that of the upper movable roller assembly.

[0012] Preferably, the structures of the lower movable roller assembly and the lower fixed roller assembly are consistent with those of the upper movable roller assembly, except that the radial dimensions of the lower movable roller assembly and the lower fixed roller assembly are smaller than the radial dimensions of the upper movable roller assembly.

[0013] Preferably: the upper movable material stop structure includes a baffle mounting seat, and a plurality of groups of material stop plates with equal spacing and wedge-shaped structures are installed on the inner side surface of the baffle mounting seat, each of which is located between two adjacent groups of mounting cutter discs and cooperates with the corresponding sleeve gap, and the structure of the upper fixed material stop structure, the structure of the lower movable material stop structure and the structure of the lower fixed material stop structure are all consistent with the structure of the upper movable material stop structure.

[0014] Preferably: it also includes two groups of lower guide plates installed in the crushing box and located between the crushing box discharge port and the lower crushing roller device, which are used to guide the material crushed by the lower crushing roller device into the crushing box discharge port; the two groups of lower guide plates and the two groups of upper guide plates are distributed in an inverted figure-eight shape, forming a flow channel that is wide at the top and narrow at the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the upper distance adjustment component in the utility model;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the upper crushing roller device in the utility model;

[0018] Figure 4 yes Figure 3 Partial structure of the AA section view.

[0019] In the figure: 1, discharge hopper; 2, filter screen; 3, lower guide plate; 4, lower pitch adjustment assembly; 5, lower movable roller assembly; 6, lower fixed roller assembly; 7, lower movable material blocking structure; 8, lower fixed material blocking structure; 9, upper guide plate; 10, upper pitch adjustment assembly; 10-1, shaft seat guide; 10-2, slider bearing seat; 10-3, movable roller gear; 10-4, first transmission gear; 10-5, second transmission gear; 10-6, gear seat plate; 10-7, pitch adjustment screw Rod; 10-8, movable mounting seat; 10-9, fixed roller gear; 11, upper movable roller assembly; 11-1, mounting knife disc; 11-2, bone crushing knife; 11-3, crushing shaft; 12, upper fixed roller assembly; 13, upper movable material blocking structure; 13-1, baffle mounting seat; 13-2, material blocking plate; 14, upper fixed material blocking structure; 15, material guide bucket; 16, feed hopper; 17, crushing box; 18, upper rotary drive; 19, lower rotary drive; 20, bracket. DETAILED DESCRIPTION

[0020] In order to further understand the content, features and effects of the present invention, the following embodiments are described in detail as follows:

[0021] See also Figure 1 The high-efficiency aggregate crushing equipment of the utility model includes a bracket 20, a crushing box 17 is installed on the bracket 20, a feed hopper 16 is installed at the top opening of the crushing box 17, a discharge hopper 1 is installed at the bottom opening, and a filter screen 2 is installed in the discharge hopper 1.

[0022] An upper crushing roller device and a lower crushing roller device are installed in the crushing box 17, and two sets of upper guide plates 9 are arranged between the upper crushing roller device and the lower crushing roller device, which are used to guide the material crushed by the upper crushing roller device into the lower crushing roller device. A material guide hopper 15 is arranged above the upper crushing roller device, which is used to guide the material dropped from the feed hopper 16 into the upper crushing roller device. This embodiment also includes two sets of lower guide plates 3 installed in the crushing box 17 and located between the discharge port of the crushing box 17 and the lower crushing roller device, which are used to guide the material crushed by the lower crushing roller device into the discharge port of the crushing box 17; the two sets of lower guide plates 3 and the two sets of upper guide plates 9 are both in an inverted eight-shaped distribution, forming a flow channel that is wide at the top and narrow at the bottom.

[0023] like Figure 1 As shown, in this embodiment, the upper crushing roller device includes an upper fixed roller assembly 12 and an upper fixed material blocking structure 14 installed in a crushing box 17, and also includes an upper movable roller assembly 11 and an upper movable material blocking structure 13 installed in the crushing box 17 and can move laterally synchronously, and also includes an upper distance adjustment assembly 10 and an upper rotation drive 18 installed on the crushing box 17, which are used to adjust the gap between the upper movable roller assembly 11 and the upper fixed roller assembly 12 and drive the upper movable roller assembly 11 and the upper fixed roller assembly 12 to rotate synchronously in the opposite direction.

[0024] The lower crushing roller device includes a lower fixed roller assembly 6 and a lower fixed material blocking structure 8 installed in a crushing box 17, and also includes a lower movable roller assembly 5 and a lower movable material blocking structure 7 installed in the crushing box 17 and can move laterally synchronously. It also includes a lower distance adjustment assembly 4 and a lower rotation drive 19 installed on the crushing box 17, which are used to adjust the gap between the lower movable roller assembly 5 and the lower fixed roller assembly 6 and drive the lower movable roller assembly 5 and the lower fixed roller assembly 6 to rotate synchronously in the opposite direction.

[0025] like Figure 2 As shown, in this embodiment, the upper distance adjustment assembly 10 includes a first guide mechanism and a second guide mechanism respectively installed on two opposite side walls of the crushing box 17, and a slider-type bearing seat 10-2 is slidably connected to the first guide mechanism and the second guide mechanism, which is used to connect the two ends of the upper movable roller assembly 11. Among them, the first guide mechanism includes two groups of shaft seat guides 10-1 fixedly connected to the front side wall of the crushing box 17 in an up-and-down distribution, and the two groups of shaft seat guides 10-1 are slidably connected to the slider-type bearing seat 10-2. The second guide mechanism includes a gear seat plate 10-6 and a shaft seat guide 10-1 fixedly connected to the rear side wall of the crushing box 17 in an up-and-down distribution, and the gear seat plate 10-6 and the shaft seat guide 10-1 are slidably connected to the slider-type bearing seat 10-2.

[0026] like Figure 2As shown, each slider-type bearing seat 10-2 is pivotally connected with a transversely arranged pitch-adjusting screw 10-7, which is inserted into a screw seat installed on the crushing box 17, and is connected to the screw seat through two locking nuts screwed thereon. The upper pitch-adjusting assembly 10 also includes a movable mounting seat 10-8 connected to the pitch-adjusting screw 10-7 through a nut, and the movable mounting seat 10-8 is inserted into a strip hole opened on the side wall of the crushing box 17, and is used to install the upper movable material blocking structure 13.

[0027] The upper spacing assembly 10 also includes a transmission gear mechanism for transmission connection between the upper movable roller assembly 11 and the upper fixed roller assembly 12. The transmission gear mechanism includes a stationary roller gear 10-9 keyed at the end of the upper fixed roller assembly 12, a movable roller gear 10-3 keyed at the end of the upper movable roller assembly 11 and located on the same side as the stationary roller gear 10-9, a first transmission gear 10-4 mounted on the gear seat plate 10-6, the first transmission gear 10-4 meshing with the stationary roller gear 10-9, and a second transmission gear 10-5 mounted on the gear seat plate 10-6 and having an adjustable longitudinal position and meshing with the first transmission gear 10-4.

[0028] The first transmission gear 10-4 and the second transmission gear 10-5 have the same structure, both including a gear shaft connected to the gear base plate 10-6, and also including a gear plate rotatably connected to the gear shaft. A longitudinally extending strip hole is provided on the gear base plate 10-6, and the gear shaft in the second transmission gear 10-5 is connected to the gear base plate 10-6 by a screw passing through the strip hole.

[0029] In this embodiment, the structure of the lower distance adjustment component 4 is consistent with the structure of the upper distance adjustment component 10. The movable mounting seat in the lower distance adjustment component 4 is connected to the lower movable material blocking structure 7, the fixed roller gear in the lower distance adjustment component 4 is installed at the end of the lower fixed roller assembly 6, and the movable roller gear 10-3 in the lower distance adjustment component 4 is installed at the end of the lower movable roller assembly 5.

[0030] See also Figure 3 and Figure 4In this embodiment, the upper movable roller assembly 11 includes a transversely arranged crushing shaft 11-3, which is rotatably connected to the slider-type bearing seat 10-2 in the upper spacing adjustment assembly 10 through a rolling bearing. Multiple groups of mounted cutter discs 11-1 with equal spacing are keyed to the crushing shaft 11-3, and multiple groups of bone crushing knives 11-2 evenly distributed in the circumferential direction are installed on the outer peripheral surface of each mounted cutter disc 11-1. A sleeve keyed to the crushing shaft 11-3 is provided between two adjacent groups of mounted cutter discs 11-1, which is used to limit the two adjacent groups of mounted cutter discs 11-1; the structure of the upper fixed roller assembly 12 is consistent with that of the upper movable roller assembly 11. In the actual working process, the upper movable roller assembly 11 and the upper fixed roller assembly 12 are engaged with each other, and then the aggregate is subjected to the initial crushing operation.

[0031] In this embodiment, the structure of the above-mentioned lower movable roller assembly 5 and the structure of the lower fixed roller assembly 6 are consistent with the structure of the upper movable roller assembly 11. The difference is that the radial dimensions of the lower movable roller assembly 5 and the lower fixed roller assembly 6 are smaller than the radial dimensions of the upper movable roller assembly 11, and then the aggregate that has completed the initial crushing is crushed again to obtain bone powder with smaller particle size.

[0032] like Figure 3 and Figure 4 As shown, the upper movable material blocking structure 13 comprises a baffle mounting seat 13-1, on the inner side of which are mounted multiple groups of material blocking plates 13-2 with equal spacing and wedge-shaped structures, each of which is located between two adjacent groups of mounting cutter discs 11-1 and fits with the corresponding sleeve clearance. The baffle mounting seat 13-1 is connected to the two groups of movable mounting seats 10-8 in the upper distance adjustment assembly 10.

[0033] In this embodiment, the structures of the upper fixed material stopping structure 14 , the lower movable material stopping structure 7 and the lower fixed material stopping structure 8 are all consistent with the structure of the upper movable material stopping structure 13 .

[0034] The baffle mounting seat in the upper fixed material blocking structure 14 is installed on the inner wall of the crushing box 17 through a rectangular block; the baffle mounting seat in the lower movable material blocking structure 7 is installed on the two movable mounting seats in the lower distance adjustment component 4; the baffle mounting seat in the lower fixed material blocking structure 8 is installed on the inner wall of the crushing box 17 through a rectangular block.

[0035] Furthermore, in this embodiment, the upper rotary drive 18 and the lower rotary drive 19 are both reduction motors, the output shaft of the upper rotary drive 18 is connected to the crushing shaft in the upper fixed roller assembly 12, and the output shaft of the lower rotary drive 19 is connected to the crushing shaft in the lower fixed roller assembly 6.

[0036] Working process:

[0037] The gap between the upper movable roller assembly 11 and the upper fixed roller assembly 12 is adjusted according to the size of the aggregate to be crushed, that is, first loosen the two sets of locking nuts threaded on the pitch adjusting screw 10-7, and then move the pitch adjusting screw 10-7 laterally, thereby driving the slider type bearing seat 10-2 pivotally mounted therewith to move, so as to achieve the purpose of moving the slider type bearing seat 10-2 to adjust the gap between the upper movable roller assembly 11 and the upper fixed roller assembly 12. After adjusting the gap between the movable roller assembly 11 and the upper fixed roller assembly 12, re-tighten the locking nut threaded on the pitch adjusting screw 10-7, and then the upper movable roller assembly 11 and the corresponding upper movable roller assembly 12 are fixed. The position of the material blocking structure 13 is fixed; if the size of the aggregate to be crushed is relatively small, the gap between the movable roller assembly 11 and the upper fixed roller assembly 12 is reduced, and aggregate particles with relatively small particle size are obtained; if the size of the aggregate to be crushed is relatively large, the gap between the movable roller assembly 11 and the upper fixed roller assembly 12 is increased, and aggregate particles with slightly larger particle size are obtained; similarly, the gap between the lower movable roller assembly 5 and the lower fixed roller assembly 6 is adjusted through the above operation, and then the crushing effect of the secondary crushing is adjusted. If the gap between the two is small, powder with small particle size is obtained, and if the gap between the two is large, powder with slightly larger particle size is obtained;

[0038] After completing the above-mentioned adjustment operation, the aggregate to be crushed is put into the feed hopper 16, and under the guidance of the lower material guide hopper 15, the aggregate falls between the upper movable material blocking structure 13 and the upper fixed material blocking structure 14, and the upper movable roller assembly 11 and the upper fixed roller assembly 12 that rotate synchronously in the opposite direction can perform the initial crushing operation on the aggregate that falls between the upper movable material blocking structure 13 and the upper fixed material blocking structure 14, and the crushed particles fall downward from between the upper movable roller assembly 11 and the upper fixed roller assembly 12, and fall between the two groups of lower movable material blocking structures 7 and the lower fixed material blocking structure 8 under the guidance of the two upper guide plates 9, and then undergo the secondary crushing operation through the lower movable roller assembly 5 and the lower fixed roller assembly 6, and the materials that have completed the secondary crushing fall into the discharge hopper 1 through the guidance of the lower guide plate 3, and then undergo the collection operation.

Claims

1. A high-efficiency aggregate crushing equipment, characterized by: The invention comprises a support (20), a crushing box (17) is installed on the support (20), a feed hopper (16) is installed at the top opening of the crushing box (17), a discharge hopper (1) is installed at the bottom opening, and a filter screen (2) is installed in the discharge hopper (1); an upper crushing roller device and a lower crushing roller device are installed in the crushing box (17), two sets of upper guide plates (9) are arranged between the upper crushing roller device and the lower crushing roller device, and are used to guide the material crushed by the upper crushing roller device into the lower crushing roller device; a lower material guide hopper (15) is arranged above the upper crushing roller device, and is used to guide the material dropped from the feed hopper (16) into the upper crushing roller device; the upper crushing roller device comprises an upper fixed roller assembly (12) and an upper fixed material blocking structure (14) which are fixed in position and installed in the crushing box (17), and also comprises an upper movable roller assembly (15) which can be synchronously moved laterally and is installed in the crushing box (17). 11) and an upper movable material-blocking structure (13), and also includes an upper distance-adjusting assembly (10) and an upper rotation drive (18) installed on a crushing box (17), which are used to adjust the gap between the upper movable roller assembly (11) and the upper fixed roller assembly (12) and drive the upper movable roller assembly (11) and the upper fixed roller assembly (12) to rotate synchronously in the opposite direction; the lower crushing roller device includes a fixed lower fixed roller assembly (6) and a lower fixed material-blocking structure (8) installed in the crushing box (17), and also includes a lower movable roller assembly (5) and a lower movable material-blocking structure (7) installed in the crushing box (17) and capable of synchronously moving laterally, and also includes a lower distance-adjusting assembly (4) and a lower rotation drive (19) installed on the crushing box (17), which are used to adjust the gap between the lower movable roller assembly (5) and the lower fixed roller assembly (6) and drive the lower movable roller assembly (5) and the lower fixed roller assembly (6) to rotate synchronously in the opposite direction.

2. The high-efficiency aggregate crushing equipment according to claim 1, characterized in that: The upper distance adjustment component (10) includes a first guide mechanism and a second guide mechanism respectively installed on two opposite side walls of the crushing box (17), and a slider-type bearing seat (10-2) is slidably connected to the first guide mechanism and the second guide mechanism for connecting the two ends of the upper movable roller component (11). A horizontally arranged distance adjustment screw (10-7) is pivotally connected to each slider-type bearing seat (10-2), and the distance adjustment screw (10-7) is inserted into a screw seat installed on the crushing box (17) and connected to the screw seat through a locking nut. It also includes a movable mounting seat (10-8) connected to the distance adjustment screw (10-7) through a nut and inserted into a strip hole opened on the side wall of the crushing box (17), and is used to install the upper movable material blocking structure (13). It also includes a transmission gear mechanism for transmission connection between the upper movable roller component (11) and the upper fixed roller component (12); the structure of the lower distance adjustment component (4) is consistent with that of the upper distance adjustment component (10).

3. The high-efficiency aggregate crushing equipment according to claim 2, characterized in that: The first guide mechanism comprises two groups of shaft seat guide members (10-1) fixedly connected to the front side wall of the crushing box (17) in an up-and-down distribution, and the two groups of shaft seat guide members (10-1) are both slidably connected to the slider-type bearing seat (10-2); the second guide mechanism comprises a gear seat plate (10-6) and shaft seat guide members (10-1) fixedly connected to the rear side wall of the crushing box (17) in an up-and-down distribution, and the gear seat plate (10-6) and shaft seat guide members (10-1) are both slidably connected to the slider-type bearing seat (10-2).

4. The high-efficiency aggregate crushing equipment according to claim 3 is characterized in that: The transmission gear mechanism includes a fixed roller gear (10-9) key-connected to the end of the upper fixed roller assembly (12), a movable roller gear (10-3) key-connected to the end of the upper movable roller assembly (11) and located on the same side as the fixed roller gear (10-9), a first transmission gear (10-4) mounted on the gear base plate (10-6), the first transmission gear (10-4) meshing with the fixed roller gear (10-9), and a second transmission gear (10-5) mounted on the gear base plate (10-6) and having an adjustable longitudinal position and meshing with the first transmission gear (10-4).

5. The high-efficiency aggregate crushing equipment according to claim 1, characterized in that: The upper movable roller assembly (11) comprises a pulverizing shaft (11-3) arranged transversely, a plurality of groups of mounted blade discs (11-1) distributed at equal intervals are key-connected to the pulverizing shaft (11-3), a plurality of groups of bone crushing knives (11-2) evenly distributed in the circumferential direction are installed on the outer peripheral surface of each mounted blade disc (11-1), and a sleeve key-connected to the pulverizing shaft (11-3) is arranged between two adjacent groups of mounted blade discs (11-1) for limiting the positions of the two adjacent groups of mounted blade discs (11-1); the structure of the upper fixed roller assembly (12) is consistent with that of the upper movable roller assembly (11).

6. The high-efficiency aggregate crushing equipment according to claim 5, characterized in that: The structure of the lower movable roller assembly (5) and the structure of the lower fixed roller assembly (6) are consistent with the structure of the upper movable roller assembly (11), the difference being that the radial dimensions of the lower movable roller assembly (5) and the lower fixed roller assembly (6) are smaller than the radial dimensions of the upper movable roller assembly (11).

7. The high-efficiency aggregate crushing equipment according to claim 5, characterized in that: The upper movable material blocking structure (13) comprises a baffle mounting seat (13-1), and a plurality of groups of material blocking plates (13-2) which are equally spaced and wedge-shaped are mounted on the inner side surface of the baffle mounting seat (13-1), and each of the material blocking plates (13-2) is respectively located between two adjacent groups of mounting cutter discs (11-1) and is matched with a corresponding sleeve gap. The structures of the upper fixed material blocking structure (14), the lower movable material blocking structure (7) and the lower fixed material blocking structure (8) are all consistent with the structure of the upper movable material blocking structure (13).

8. The high-efficiency aggregate crushing equipment according to claim 1, characterized in that: It also includes two groups of lower guide plates (3) installed in the crushing box (17) and located between the discharge port of the crushing box (17) and the lower crushing roller device, and used to guide the materials crushed by the lower crushing roller device into the discharge port of the crushing box (17); the two groups of lower guide plates (3) and the two groups of upper guide plates (9) are all arranged in an inverted figure-eight shape, forming a flow channel that is wide at the top and narrow at the bottom.

Images