Jaw type crushing device

Abstract

The utility model discloses a jaw type crushing device which mainly comprises a crusher, a bottom plate, a bucket type conveying belt and a buffer mechanism, a spring telescopic rod is arranged on the inner wall of the buffer mechanism, a buffer plate with an adjustable inclination angle is arranged on the lower portion of the spring telescopic rod, and the bucket type conveying belt feeds stones into the buffer mechanism in batches. The buffering mechanism pretreats mud on the surface of the stone through rotation, and the stone falls into the crusher through buffering of a buffering plate to be subjected to jaw type crushing; the utility model solves the problems that the cost is high, the use is inconvenient, and the service life of the jaw plate is shortened because the jaw plate is easily damaged when the stones fall down when the stones are uniformly pre-treated; the stone processing efficiency can be improved, the material cost is reduced, and the service life of parts of the device is prolonged.

Description

Technical Field

[0001] The present application relates to the field of mining equipment, and in particular to a jaw crusher. Background Art

[0002] In the construction and mining of modern sand and gravel mines, jaw crushers are used to carry out preliminary crushing of the mined stones. Large pieces of stone are crushed into stones that are more convenient for secondary processing and then transported to designated secondary processing sites for processing. Since the mining operations in many mining areas are relatively scattered, in order to reduce transportation costs, jaw crushers are generally arranged in a single mining area, and the stones are directly crushed after mining and then transported. The newly mined stones may contain thin mud and sand, and such stones entering the jaw crusher will cause material jamming problems. Therefore, it is generally necessary to pre-process the stones separately. However, when the mining sites are relatively scattered, the cost of setting up a separate pretreatment production line is too high; secondly, heavy stones falling directly from a height onto the jaw plate can easily shorten the service life of the jaw plate and increase the crushing cost.

[0003] For example, the publication number is CN206731192U, which is a jaw crusher. Its structure includes a chassis, a fixed jaw plate fixed on the chassis, a movable jaw plate for squeezing stones, an eccentric shaft driven by a motor, and a telescopic rod hinged to the movable jaw plate. The two side walls of the chassis are provided with a number of strip openings, and the two sides of the fixed jaw plate are fixed with a number of protruding rods that slide on the strip openings. The ends of the protruding rods are threadedly connected with limit nuts for clamping the chassis wall. The above-mentioned jaw crusher can only crush aggregates of different sizes by adjusting the spacing, and cannot reduce the occurrence of material jamming in the device; at the same time, it cannot solve the problem of stones falling onto the movable jaw plate, causing damage and shortening the service life of the movable jaw plate. Therefore, the present application designs a jaw crushing device that can improve operating efficiency and extend the service life of device components. Utility Model Content

[0004] The purpose of this utility model is to provide a jaw crusher to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a jaw crushing device, comprising a crusher, a bottom plate, a bucket conveyor belt, and a buffer mechanism that can prevent stones from directly hitting the crusher, thereby shortening the service life of the crusher. The crusher is rotatably connected to the bucket conveyor belt, the lower end of the bucket conveyor belt is detachably connected to the bottom plate, the crusher is bolted to the bottom plate, the buffer mechanism is arranged at the lower part of the upper end of the bucket conveyor belt, the buffer mechanism is bolted to the crusher, a spring telescopic rod is provided on the inner wall of the buffer mechanism, and a buffer plate with an adjustable inclination angle is provided at the lower part of the spring telescopic rod. The bucket conveyor belt puts stones into the buffer mechanism in batches, and the buffer mechanism pre-treats the sludge on the surface of the stone by rotation. The stone falls into the crusher through the buffering of the buffer plate for jaw crushing.

[0006] The buffer mechanism is set up to clean and throw out the thin mud and sand on the surface of the stone by rotating, and the buffer plate with adjustable angle is set up to buffer the stone before it falls into the crusher, which effectively reduces the problem of material jamming in the crusher, extends the service life of the crusher parts, reduces the number of maintenance times, improves crushing efficiency and reduces material costs.

[0007] Furthermore, the crusher includes a transmission assembly, a protective shell, a fixed jaw plate, a movable jaw plate and a spring pull rod; the lower end of the protective shell is bolted to the base plate, the transmission assembly is bolted to the base plate, the fixed jaw plate is bolted to the inner wall of the protective shell, the upper part of the fixed jaw plate is bolted to the buffer mechanism, the movable jaw plate is transmission-connected to the transmission assembly, one end of the spring pull rod is plugged into the inner wall of the protective shell, and the other end of the spring pull rod is plugged into the lower end of the movable jaw plate.

[0008] Furthermore, the bucket conveyor belt includes a conveying track, a side plate, a drive assembly, a first connecting plate, a second connecting plate and a stone hopper; the side plate is rotatably connected to the drive assembly, the conveying track is transmission-connected to the drive assembly, the stone hopper is bolted to the conveying track, and the stone hopper is provided with an array, one end of the first connecting plate is bolted to the side plate, the other end of the first connecting plate is bolted to the bottom plate, one end of the second connecting plate is bolted to the side plate, and the other end is bolted to the buffer mechanism.

[0009] Furthermore, the buffer mechanism includes a housing, a connecting frame, a roller, a rotating motor, and bristles; the housing is bolted to the upper end of the fixed jaw plate, one end of the connecting frame is plugged into the housing, the other end of the connecting frame is bolted to the second connecting plate, the output end of the rotating motor is plugged into the roller, the rotating motor is rotationally connected to the inner wall of the housing, the end of the roller away from the rotating motor is rotationally connected to the inner wall of the housing, the bristles are evenly arranged on the surface of the roller, and the rollers are arranged relative to each other from top to bottom along the inner wall of the housing. The inner wall of the housing is provided with a rotating shaft, the rotating shaft is provided with a torsion spring, the rotating motor is rotationally connected to the inner wall of the housing via the rotating shaft, and the end of the roller away from the rotating motor is rotationally connected to the inner wall of the housing via the rotating shaft. The staggered arrangement of the rotating rollers in combination with the bristles can effectively remove thin mud and sand from the surface of the stone and reduce the possibility of stone getting stuck.

[0010] Furthermore, deflectors are installed on both sides of the inner wall of the shell. The lower part of the shell is provided with a mud discharge hole. The deflectors extend through the mud discharge hole to both sides of the shell. After the roller drives the bristles to throw the thin mud and sand to the inner wall of the shell, the thin mud and sand naturally flow into the deflector. The deflector guides the thin mud and sand to the outside of the buffer mechanism, preventing it from entering the crusher. This increases the service life of the crusher and eliminates the need for unified and individual processing of the stones. This optimizes the construction process, shortens the construction period, and reduces construction costs.

[0011] Furthermore, a spring telescopic rod is slidably arranged inside the shell, the upper end of the spring telescopic rod is fixedly connected to the inner wall of the shell, the lower part of the spring telescopic rod extends to the lower end of the shell, the lower part of the spring telescopic rod is rotatably connected to the buffer plate, and an adjustment rod is rotatably arranged in the middle of the side wall of the buffer plate, and the adjustment rod is rotatably connected to the spring telescopic rod at one end away from the buffer plate.

[0012] Compared with the existing technology, it has the following beneficial effects:

[0013] The utility model provides a jaw crusher, which cleans and throws out the thin mud and sand on the surface of the stone by rotating through the provided buffer mechanism, and cushions the stone before it falls into the crusher through the provided buffer plate with an adjustable angle, effectively reducing the situation of material jamming in the crusher, extending the service life of the crusher parts, reducing the number of maintenance times, improving the crushing efficiency and reducing material costs.

[0014] The guide plate is set up, and the roller drives the brush to throw the thin mud and sand to the inner wall of the shell. The thin mud and sand naturally flow into the guide plate, and the guide plate guides the thin mud and sand to the outside of the buffer mechanism, so that it will not enter the crusher, thereby increasing the service life of the crusher. There is no need to uniformly and individually process the stones, which optimizes the construction process, shortens the construction period, and reduces construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is an overall schematic diagram of a jaw crusher of the utility model;

[0016] Figure 2 This is a schematic diagram of a jaw crusher according to the present invention from another angle;

[0017] Figure 3 This is a cross-sectional view of a jaw crusher according to the present invention;

[0018] Figure 4 This is a cross-sectional view of a buffer mechanism of a jaw crusher according to the present invention;

[0019] Figure 5 This is a schematic diagram of a guide plate of a jaw crusher of the present invention.

[0020] In the figure: 1-crusher; 11-transmission assembly; 12-protective shell; 13-fixed jaw plate; 14-moving jaw plate; 15-spring pull rod; 2-bottom plate; 3-bucket conveyor belt; 31-conveyor track; 32-side plate; 33-drive assembly; 34-first connecting plate; 35-second connecting plate; 36-stone hopper; 4-buffer mechanism; 41-housing; 411-rotating shaft; 412-guide plate; 413-mud discharge hole; 42-connecting frame; 43-drum; 44-rotating motor; 45-bristles; 5-spring telescopic rod; 6-buffer plate; 61-adjusting rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 are within the scope of protection of the present invention.

[0022] See also Figures 1 to 5 As shown, the utility model provides the following technical solutions: a jaw crushing device, comprising a crusher 1, a base plate 2, a bucket conveyor belt 3 and a buffer mechanism 4 that can prevent stones from directly hitting the crusher 1, resulting in a shortened service life of the crusher 1. The crusher 1 is rotatably connected to the bucket conveyor belt 3, the lower end of the bucket conveyor belt 3 is detachably connected to the base plate 2, the crusher 1 is bolted to the base plate 2, the buffer mechanism 4 is arranged at the lower part of the upper end of the bucket conveyor belt 3, the buffer mechanism 4 is bolted to the crusher 1, a spring telescopic rod 5 is provided on the inner wall of the buffer mechanism 4, and a buffer plate 6 with an adjustable inclination angle is provided at the lower part of the spring telescopic rod 5, the bucket conveyor belt 3 puts stones into the buffer mechanism 4 in batches, the buffer mechanism 4 pre-treats the sludge on the surface of the stone by rotation, and the stone falls into the crusher 1 through the buffering of the buffer plate 6 for jaw crushing.

[0023] See also Figures 1 to 3 The crusher 1 includes a transmission assembly 11, a protective shell 12, a fixed jaw plate 13, a movable jaw plate 14, and a spring pull rod 15. The lower end of the protective shell 12 is bolted to the base plate 2, the transmission assembly 11 is bolted to the base plate 2, the fixed jaw plate 13 is bolted to the inner wall of the protective shell 12, the upper portion of the fixed jaw plate 13 is bolted to the buffer mechanism 4, the movable jaw plate 14 is in transmission connection with the transmission assembly 11, one end of the spring pull rod 15 is plugged into the inner wall of the protective shell 12, and the other end of the spring pull rod 15 is plugged into the lower end of the movable jaw plate 14. The transmission assembly 11 is electrically driven and uses an eccentric shaft and bearing to drive the movable jaw plate 14 to reciprocate toward the fixed jaw plate 13, so that the stone is compressed and crushed between the movable jaw plate 14 and the fixed jaw plate 13. By adjusting the spring pull rod 15, the distance between the movable jaw plate 14 and the fixed jaw plate 13 can be changed, thereby controlling the size of the stone after crushing.

[0024] As another example, Figures 1 to 5 As shown, the bucket conveyor belt 3 includes a conveying track 31, side plates 32, a drive assembly 33, a first connecting plate 34, a second connecting plate 35, and a stone hopper 36. The side plates 32 are rotatably connected to the drive assembly 33, the conveying track 31 is transmission-connected to the drive assembly 33, and the stone hopper 36 is bolted to the conveying track 31. The stone hopper 36 is arranged in an array. One end of the first connecting plate 34 is bolted to the side plate 32, and the other end of the first connecting plate 34 is bolted to the bottom plate 2. One end of the second connecting plate 35 is bolted to the side plate 32, and the other end is bolted to the buffer mechanism 4. Stone is transported from the lower portion of the bucket conveyor belt 3 to the stone hopper 36. The drive assembly 33 drives the conveying track 31 to move, causing the stone hopper 36 to move upward along the side plates 32 and downward in a circular motion in the gap between the second connecting plate 35 and the conveying track 31, dumping the stone in the hopper into the buffer mechanism 4.

[0025] See also Figure 4 as well as Figure 5 The buffer mechanism 4 includes a housing 41, a connecting frame 42, a roller 43, a rotating motor 44, and bristles 45. The housing 41 is bolted to the upper end of the fixed jaw 13. One end of the connecting frame 42 is plugged into the housing 41, and the other end of the connecting frame 42 is bolted to the second connecting plate 35. The output end of the rotating motor 44 is plugged into the roller 43. The rotating motor 44 is rotatably connected to the inner wall of the housing 41. The end of the roller 43 away from the rotating motor 44 is rotatably connected to the inner wall of the housing 41. The bristles 45 are evenly arranged on the surface of the roller 43. After the stone hopper 36 dumps the stone into the buffer mechanism 4, the stone contacts the roller 43, which is driven by the rotating motor 44. The thin mud and sand on the surface are brushed off by the bristles 45 on the roller 43 and most of them are thrown onto the inner walls of the housing 41 on both sides. When the stone presses on the roller 43, the roller 43 performs a downward circular motion, allowing the stone to fall.

[0026] See also Figure 4 The rollers 43 are arranged in a staggered manner from top to bottom along the inner wall of the housing 41. After the stones fall from the first roller 43, they enter the second staggered roller 43 for further cleaning. The staggered arrangement of the rollers 43 prevents the stones from getting stuck in the buffer mechanism 4. There are multiple groups of staggered rollers.

[0027] See also Figure 4 The inner wall of the housing 41 is provided with a rotating shaft 411, which is provided with a torsion spring. The rotating motor 44 is rotatably connected to the inner wall of the housing 41 via the rotating shaft 411. The end of the roller 43 away from the rotating motor 44 is rotatably connected to the inner wall of the housing 41 via the rotating shaft 411. After the stones fall, the rotating shaft 411 of the roller 43 rotates in the opposite direction under the action of the torsion spring, driving the roller 43 to return to its original position and prepare for the next batch of stones to be cleaned.

[0028] See also Figure 5 Guide plates 412 are provided on the inner walls of both sides of the housing 41. Mud discharge holes 413 are provided at the lower portion of the housing 41. The guide plates 412 extend through the mud discharge holes 413 to both sides of the housing 41. The thin mud and sand that is thrown onto the inner walls of the housing 41 on both sides naturally flow into the guide plates 412 under the action of gravity. The guide plates 412 allow the thin mud and sand to naturally fall into the mud discharge holes 413, through which they are discharged from the device, preventing it from entering the movable jaw plate 14 and the fixed jaw plate 13 and causing material jamming.

[0029] See also Figure 4 as well as Figure 5 The spring telescopic rod 5 is slidably mounted within the housing 41. The upper end of the spring telescopic rod 5 is fixedly connected to the inner wall of the housing 41. The lower portion of the spring telescopic rod 5 extends to the lower end of the housing 41. The lower portion of the spring telescopic rod 5 is rotatably connected to the buffer plate 6. An adjustment rod 61 is rotatably mounted in the middle of the side wall of the buffer plate 6. The end of the adjustment rod 61, which is away from the buffer plate 6, is rotatably connected to the spring telescopic rod 5. After the stone leaves the drum 43, it continues to fall downward and contacts the buffer plate 6. The spring telescopic rod 5 causes the buffer plate 6 to move downward according to the magnitude of the impact force it receives. The adjustment rod 61 can be used to adjust the inclination angle of the buffer plate 6. After the stone falls onto the buffer plate 6, it naturally falls between the movable jaw plate 14 and the fixed jaw plate 13 as it tilts. The heavier the stone, the longer the buffer plate 6 descends, reducing the impact force of the stone on the movable jaw plate 14.

[0030] Working principle: When in use, the device is installed at the work site through the bottom plate 2, and the stones to be processed are transported to the top of the buffer mechanism 4 through the bucket conveyor belt 3. The stone hopper 36 moves downward in a circular motion above the buffer mechanism 4, dumping the stones inside into the buffer mechanism 4. The stones then pass through the rotating roller 43 and the brushes 45 provided on the roller 43 clean the thin mud and sand on the surface of the stones, and then throw them to the inner walls on both sides of the shell 41 for hanging flow. After the stones exert downward pressure on the roller 43, the roller 43 passes through the rotating shaft 41. 1 moves downward in a circular motion, causing the stone to continue falling to the next level roller 43 for further cleaning. After being cleaned by multiple groups of rollers 43, the stone falls onto the surface of the buffer plate 6. The buffer plate 6 drives the spring telescopic rod 5 to move downward according to the weight of the stone, thereby reducing the impact force of the falling stone. The inclined surface of the buffer plate 6 causes the stone to slide between the movable jaw plate 14 and the fixed jaw plate 13 for crushing. The inclination angle of the buffer plate 6 can be adjusted by the adjusting rod 61, so that the buffering effect of the buffer plate 6 can be adjusted according to the specific conditions of the stone batch.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A jaw crusher, characterized in that , comprising a crusher (1), a bottom plate (2), a bucket conveyor belt (3) and a buffer mechanism (4) that can prevent stones from directly hitting the crusher (1), thereby shortening the service life of the crusher (1), the crusher (1) is rotatably connected to the bucket conveyor belt (3), the lower end of the bucket conveyor belt (3) is detachably connected to the bottom plate (2), the crusher (1) is bolted to the bottom plate (2), the buffer mechanism (4) is arranged at the lower part of the upper end of the bucket conveyor belt (3), the buffer mechanism (4) is bolted to the crusher (1), the inner wall of the buffer mechanism (4) is provided with a spring telescopic rod (5), the lower part of the spring telescopic rod (5) is provided with a buffer plate (6) with an adjustable tilt angle, the bucket conveyor belt (3) puts stones into the buffer mechanism (4) in batches, the buffer mechanism (4) pre-treats the mud on the surface of the stones by rotating, and the stones fall into the crusher (1) through the buffering of the buffer plate (6) for jaw crushing.

2. The jaw crusher according to claim 1, characterized in that: The crusher (1) comprises a transmission assembly (11), a protective shell (12), a fixed jaw plate (13), a movable jaw plate (14) and a spring pull rod (15); the lower end of the protective shell (12) is bolted to the base plate (2), the transmission assembly (11) is bolted to the base plate (2), the fixed jaw plate (13) is bolted to the inner wall of the protective shell (12), the upper part of the fixed jaw plate (13) is bolted to the buffer mechanism (4), the movable jaw plate (14) is transmission-connected to the transmission assembly (11), one end of the spring pull rod (15) is plugged into the inner wall of the protective shell (12), and the other end of the spring pull rod (15) is plugged into the lower end of the movable jaw plate (14).

3. The jaw crusher according to claim 2, characterized in that: The bucket conveyor belt (3) includes a conveying crawler (31), a side plate (32), a driving assembly (33), a first connecting plate (34), a second connecting plate (35) and a stone hopper (36); the side plate (32) is rotatably connected to the driving assembly (33), the conveying crawler (31) is transmission-connected to the driving assembly (33), the stone hopper (36) is bolted to the conveying crawler (31), and the stone hopper (36) is provided with an array, one end of the first connecting plate (34) is bolted to the side plate (32), the other end of the first connecting plate (34) is bolted to the bottom plate (2), one end of the second connecting plate (35) is bolted to the side plate (32), and the other end is bolted to the buffer mechanism (4).

4. The jaw crusher according to claim 3, characterized in that: The buffer mechanism (4) comprises a shell (41), a connecting frame (42), a roller (43), a rotating motor (44) and bristles (45); the shell (41) is bolted to the upper end of the fixed jaw plate (13); one end of the connecting frame (42) is plugged into the shell (41); the other end of the connecting frame (42) is bolted to the second connecting plate (35); the output end of the rotating motor (44) is plugged into the roller (43); the rotating motor (44) is rotatably connected to the inner wall of the shell (41); one end of the roller (43) away from the rotating motor (44) is rotatably connected to the inner wall of the shell (41); and the bristles (45) are evenly arranged on the surface of the roller (43).

5. The jaw crusher according to claim 4, characterized in that: The rollers (43) are arranged relative to each other in a staggered manner from top to bottom along the inner wall of the shell (41).

6. The jaw crusher according to claim 5, characterized in that: A rotating shaft (411) is provided on the inner wall of the housing (41), and a torsion spring is provided in the rotating shaft (411). The rotating motor (44) is rotatably connected to the inner wall of the housing (41) via the rotating shaft (411), and one end of the roller (43) away from the rotating motor (44) is rotatably connected to the inner wall of the housing (41) via the rotating shaft (411).

7. The jaw crusher according to claim 6, characterized in that: Guide plates (412) are provided on both inner walls of the shell (41), a mud discharge hole (413) is provided at the lower portion of the shell (41), and the guide plates (412) pass through the mud discharge hole (413) and extend to both sides of the shell (41).

8. The jaw crusher according to claim 7, characterized in that: The spring telescopic rod (5) is slidably arranged inside the housing (41), the upper end of the spring telescopic rod (5) is fixedly connected to the inner wall of the housing (41), the lower part of the spring telescopic rod (5) extends to the lower end of the housing (41), the lower part of the spring telescopic rod (5) is rotatably connected to the buffer plate (6), and an adjustment rod (61) is rotatably arranged in the middle of the side wall of the buffer plate (6), and the adjustment rod (61) is rotatably connected to the spring telescopic rod (5) at one end away from the buffer plate (6).

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