Stone crushing device for highway engineering construction

Abstract

The invention discloses a stone crushing device for highway engineering construction, which comprises a rack body, a fixed jaw unit and a movable jaw unit, the rack body is provided with a first jaw bed and a second jaw bed which are oppositely arranged, the rack body is also provided with an eccentric shaft, and the second jaw bed is connected with the rack body through the eccentric shaft; wherein the jaw fixing unit comprises a first chain transmission assembly arranged on the first jaw bed and a plurality of jaw fixing rollers, a first chain on the first chain transmission assembly is formed by connecting a plurality of first chain plates, the jaw fixing rollers are arranged on outer chain plates of the first chain plates, and every two adjacent jaw fixing rollers are tangent to each other; the movable jaw unit comprises a second chain transmission assembly arranged on the second jaw bed and a plurality of movable jaw rollers, the second chain transmission assembly and the first chain transmission assembly are oppositely arranged, a second chain on the second chain transmission assembly is formed by connecting a plurality of second chain plates, and the movable jaw rollers are arranged on outer chain plates of the second chain plates; therefore, the problem that an existing jaw crusher is short in service life is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of technical crushers, and in particular relates to a stone crushing device used in highway engineering construction. Background Art

[0002] In highway construction, crushed stone is one of the commonly used building materials, mainly used for roadbed paving, concrete mixing, etc. In the process of highway construction, it is necessary to crush the mined rocks, and after crushing, the mined rocks can be processed into crushed stones that meet the requirements of the project. Jaw crusher (also known as jaw crusher) is a commonly used crushing equipment in highway construction. The product after jaw crushing has a better particle shape and a low needle-like content, which is conducive to improving the quality of concrete and roadbed.

[0003] The existing jaw crusher is mainly composed of the following parts: frame, fixed jaw plate, movable jaw plate, transmission parts, etc. The frame of the jaw crusher is a four-walled rigid frame with upper and lower openings, which is used to support the eccentric shaft and withstand the reaction force of the crushed materials. The movable jaw plate and the fixed jaw plate are respectively composed of the movable and static jaw plate bodies and liner plates arranged on the sides of the movable and static jaw plate bodies. The liner plates are fixed to the opposite sides of the movable and static jaw plate bodies by bolts.

[0004] In the process of crushing rocks, the existing jaw crusher mainly wears out the two liners in the middle and lower parts. After crushing, the middle and lower sides of the liners are easily worn out and cannot be crushed normally. At this time, the liners need to be replaced. Therefore, the service life of the existing jaw crusher is very short. Summary of the invention

[0005] The purpose of the invention is to provide a stone crushing device for highway engineering construction, which solves the problem of short service life of the existing jaw crusher.

[0006] The technical solution adopted by the present invention is a stone crushing device for highway engineering construction, comprising a frame body, a first jaw bed and a second jaw bed arranged opposite to each other are arranged on the frame body, an eccentric shaft is also arranged on the frame body, and the second jaw bed is connected to the frame body through the eccentric shaft, and further comprising:

[0007] The fixed jaw unit comprises a first chain transmission assembly and a plurality of fixed jaw rollers arranged on a first jaw bed, wherein a first chain on the first chain transmission assembly is formed by connecting a plurality of first chain plates, a plurality of fixed jaw rollers are arranged on outer chain plates of the first chain plates, and two adjacent fixed jaw rollers are tangent to each other;

[0008] The movable jaw unit includes a second chain transmission assembly and a plurality of movable jaw rollers arranged on a second jaw bed. The second chain transmission assembly is arranged opposite to the first chain transmission assembly, wherein the second chain on the second chain transmission assembly is connected by a plurality of second chain plates, and the plurality of movable jaw rollers are arranged on the outer chain plates of the second chain plates, and two adjacent movable jaw rollers are tangent to each other.

[0009] Furthermore, a first mounting plate is provided on the outer link plate of the first chain plate, and the fixed jaw roller is rotatably provided on the first mounting plate via a first rotating shaft; a second mounting plate is provided on the outer link plate of the second chain plate, and the movable jaw roller is rotatably provided on the second mounting plate via a second rotating shaft.

[0010] The outer sides of the first chain plate and the second chain plate are also provided with a special-shaped gear plate that rotates with the first chain plate and the second chain plate. The special-shaped gear plate is provided with meshing teeth. A transmission component that can drive the special-shaped gear plate and the movable jaw roller and the fixed jaw roller to rotate in the opposite direction is provided between the special-shaped gear plate and the movable jaw roller and the fixed jaw roller.

[0011] The transmission assembly includes a fixed ring arranged on the outer ring of the special-shaped gear plate, the fixed ring is fixed on the first jaw bed or the second jaw bed, and the fixed ring is respectively provided with a first gear meshing with the meshing teeth on the gear plate, and the ends of the first rotating shaft and the second rotating shaft are both provided with a second gear meshing with the first gear.

[0012] Multiple liner sleeves are arranged on the outer sides of the movable jaw roller and the fixed jaw roller. The multiple liner sleeves are evenly arranged along the circumferential direction of the movable jaw roller or the fixed jaw roller, and two adjacent liner sleeves are tangent to each other.

[0013] The shape of the liner is a regular hexagonal prism.

[0014] The liner is made of alloy steel.

[0015] The first chain transmission assembly includes a first driving sprocket, a first driven sprocket and a first chain, the first driving sprocket and the first driven sprocket are installed on the first jaw bed from top to bottom, and the first chain is arranged on the outside of the first driving sprocket and the first driven sprocket. The second chain transmission assembly includes a second driving sprocket, a second driven sprocket and a second chain, the second driving sprocket and the second driven sprocket are installed on the second jaw bed from top to bottom, and the second chain is arranged on the outside of the second driving sprocket and the second driven sprocket.

[0016] The first driving sprocket and the second driving sprocket are both provided with motors for driving them to rotate, and the first driving sprocket and the second driving sprocket rotate in opposite directions.

[0017] The beneficial effects of the present invention are:

[0018] The present invention discloses a stone crushing device for highway engineering construction. The eccentric shaft drives the second chain transmission assembly and the movable jaw roller arranged on the second jaw bed to swing up and down periodically. When the stone is put into the crushing chamber composed of the movable jaw roller and the fixed jaw roller for crushing, under the action of the first chain transmission assembly and the second chain transmission assembly, a plurality of fixed jaw rollers and a plurality of movable jaw rollers can rotate continuously with the rotation of the first chain transmission assembly and the second chain transmission assembly. At this time, the plurality of fixed jaw rollers and the plurality of movable jaw rollers rotate to the position of contacting with the stone in turn to crush the stone. In this process, the plurality of fixed jaw rollers and the plurality of movable jaw rollers rotate to the position where extrusion can be generated in turn. Therefore, in the crushing process, the plurality of fixed jaw rollers and the plurality of movable jaw rollers can be cyclically worn. At this time, they can only be replaced when all the movable jaw rollers and the fixed jaw rollers are greatly worn. Therefore, the present invention improves the problem of low service life of the existing jaw crusher. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a stereoscopic diagram of a stone crushing device used in highway engineering construction according to the present invention;

[0020] Figure 2 It is a side view of a stone crushing device used for highway engineering construction of the present invention;

[0021] Figure 3 The invention discloses a transmission schematic diagram of a transmission assembly on a stone crushing device used in highway engineering construction.

[0022] In the figure, 1, the first jaw bed; 2, the second jaw bed; 3, the fixed jaw roller; 4, the movable jaw roller; 5, the eccentric shaft; 6, the crushing chamber; 7, the liner; 8, the special-shaped gear plate; 9, the fixed ring; 10, the first driving sprocket; 11, the first driven sprocket; 12, the first chain; 13, the first chain plate; 14, the second driving sprocket; 15, the second driven sprocket; 16, the second chain; 17, the second chain plate; 18, the first gear; 19, the second gear. DETAILED DESCRIPTION

[0023] The present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection solution of the present invention.

[0024] In highway construction, crushed stone is one of the commonly used building materials, mainly used for roadbed paving, concrete mixing, etc. In the process of highway construction, it is necessary to crush the mined rocks, and after crushing, the mined rocks can be processed into crushed stones that meet the requirements of the project. Jaw crusher (also known as jaw crusher) is a commonly used crushing equipment in highway construction. The product after jaw crushing has a better particle shape and a low needle-like content, which is conducive to improving the quality of concrete and roadbed.

[0025] The existing jaw crusher is mainly composed of the following parts: frame, fixed jaw plate, movable jaw plate, transmission parts, etc. The frame of the jaw crusher is a four-walled rigid frame with upper and lower openings, which is used to support the eccentric shaft and withstand the reaction force of the crushed materials. The movable jaw plate and the fixed jaw plate are respectively composed of the movable and static jaw plate bodies and liner plates arranged on the sides of the movable and static jaw plate bodies. The liner plates are fixed to the opposite sides of the movable and static jaw plate bodies by bolts.

[0026] In the process of crushing rocks, the existing jaw crusher mainly wears out the two liners in the middle and lower parts. After crushing, the middle and lower sides of the liners are easily worn out and cannot be crushed normally. At this time, the liners need to be replaced. Therefore, the service life of the existing jaw crusher is very short.

[0027] The present invention discloses a stone crushing device for highway engineering construction, such as Figure 1-Figure 2 As shown, it includes a frame body, on which a first jaw bed 1 and a second jaw bed 2 are arranged relatively to each other, and an eccentric shaft 5 is also arranged on the frame body, and the second jaw bed 2 is connected to the frame body through the eccentric shaft 5, and also includes: a fixed jaw unit and a movable jaw unit, wherein the fixed jaw unit includes a first chain transmission assembly arranged on the first jaw bed 1 and a plurality of fixed jaw rollers 3, wherein the first chain 12 on the first chain transmission assembly is connected by a plurality of first chain plates 13, and the plurality of fixed jaw rollers 3 are arranged on the outer chain plate of the first chain plate 13, and two adjacent fixed jaw rollers 3 are tangent to each other; the movable jaw unit includes a second chain transmission assembly arranged on the second jaw bed 2 and a plurality of movable jaw rollers 4, the second chain transmission assembly is arranged opposite to the first chain transmission assembly, wherein the second chain 16 on the second chain transmission assembly is connected by a plurality of second chain plates 17, and the plurality of movable jaw rollers 4 are arranged on the outer chain plate of the second chain plate 17, and two adjacent movable jaw rollers 4 are tangent to each other.

[0028] Further, the first chain transmission assembly disclosed in the present embodiment includes a first driving sprocket 10, a first driven sprocket 11 and a first chain 12, the first driving sprocket 10 and the first driven sprocket 11 are installed on the first jaw bed 1 from top to bottom, and the first chain 12 is arranged outside the first driving sprocket 10 and the first driven sprocket 11, and the second chain transmission assembly includes a second driving sprocket 14, a second driven sprocket 15 and a second chain 16, the second driving sprocket 14 and the second driven sprocket 15 are installed on the second jaw bed 2 from top to bottom, and the second chain 16 is arranged outside the second driving sprocket 14 and the second driven sprocket 15. In addition, the first driving sprocket 10 and the second driving sprocket 14 are both provided with motors for driving them to rotate, and the first driving sprocket 10 and the second driving sprocket 14 rotate in opposite directions. That is, the first driving sprocket 10 and the second driving sprocket 14 both slide in the direction of the stone falling downwards. At this time, when the first driving sprocket 10 and the second driving sprocket 14 drive the multiple fixed jaw rollers 3 and the multiple movable jaw rollers 4 to rotate, the multiple fixed jaw rollers 3 and the multiple movable jaw rollers 4 can simultaneously drive the stone to fall and squeeze and crush the stone. The first driving sprocket 10 and the second driving sprocket 14 both slide in the direction of the stone falling downwards to avoid the phenomenon of stone returning during the stone crushing process. In the position shown in the figure, the first driving sprocket 10 rotates clockwise and the second driving sprocket 14 rotates counterclockwise, so that normal crushing can be performed.

[0029] When the stone crushing device for highway engineering construction disclosed in the present invention is working, the eccentric shaft 5 drives the second chain transmission assembly and the movable jaw roller 4 arranged on the second jaw bed 2 to swing up and down periodically, and when the stone is put into the crushing chamber 6 composed of the movable jaw roller 4 and the fixed jaw roller 3 for crushing, under the action of the first chain transmission assembly and the second chain transmission assembly, the plurality of fixed jaw rollers 3 and the plurality of movable jaw rollers 4 can rotate continuously with the rotation of the first chain transmission assembly and the second chain transmission assembly. At this time, the plurality of fixed jaw rollers 3 and the plurality of movable jaw rollers 4 rotate to the position of contacting with the stone in turn to crush the stone. In this process, the plurality of fixed jaw rollers 3 and the plurality of movable jaw rollers 4 rotate to the position where extrusion can be generated in turn. Therefore, in the process of crushing, the plurality of fixed jaw rollers 3 and the plurality of movable jaw rollers 4 can be cyclically worn. At this time, they can only be replaced when all the movable jaw rollers 4 and the fixed jaw rollers 3 are greatly worn. Therefore, the present invention improves the problem of low service life of the existing jaw crusher.

[0030] In order to further improve the service life of the stone crushing device, a first mounting plate is provided on the outer chain plate of the first chain plate 13 disclosed in the present embodiment, the fixed jaw roller 3 is rotatably provided on the first mounting plate via the first rotating shaft, a second mounting plate is provided on the outer chain plate of the second chain plate 17, and the movable jaw roller 4 is rotatably provided on the second mounting plate via the second rotating shaft. Therefore, during the crushing process, while the plurality of fixed jaw rollers 3 and the plurality of movable jaw rollers 4 rotate along with the first driving sprocket 10 and the second driving sprocket 14, the plurality of fixed jaw rollers 3 and the plurality of movable jaw rollers 4 can also rotate on their own.

[0031] In order to realize the self-rotation of multiple fixed jaw rollers 3 and multiple movable jaw rollers 4, the outer sides of the first chain plate 13 and the second chain plate 17 disclosed in this embodiment are also provided with a special-shaped gear plate 8 that rotates with the first chain plate 13 and the second chain plate 17, and the first driving sprocket 10 and the second driving sprocket 14 are provided with meshing teeth, and a transmission component that can drive the special-shaped gear plate 8 and the movable jaw roller 4 and the fixed jaw roller 3 to rotate in the opposite direction is provided. The specific transmission component includes a fixed ring 9 arranged on the outer ring of the special-shaped gear plate 8, the fixed ring 9 is fixed on the first jaw bed 1 or the second jaw bed 2, and the fixed ring 9 is respectively provided with a first gear 18 meshing with the meshing teeth on the special-shaped gear plate 8, and the ends of the first rotating shaft and the second rotating shaft are both provided with a second gear 19 that meshes with the first gear 18. Therefore, when crushing is in progress, the special-shaped gear plate 8 arranged on the outside of the first driving sprocket 10 and the second driving sprocket 14 rotates with the first driving sprocket 10 and the second driving sprocket 14, and then the first gear 18 and the special-shaped gear plate 8 are driven to rotate in the opposite direction through the meshing teeth on the special-shaped gear plate 8, and finally the second gear 19 meshing with the first gear 18 begins to rotate in the same direction as the special-shaped gear plate 8. Therefore, when the first driving sprocket 10 and the second driving sprocket 14 rotate in the direction of falling stones, they can simultaneously drive multiple fixed jaw rollers 3 and multiple movable jaw rollers 4 to rotate in the direction of falling stones, so that each surface of the fixed jaw roller 3 and the multiple movable jaw rollers 4 can play a crushing role during the crushing process, thereby effectively improving the service life of each fixed jaw roller 3 or movable jaw roller 4, thereby improving the service life of the entire machine.

[0032] Furthermore, the outer sides of the movable jaw roller 4 and the fixed jaw roller 3 disclosed in this embodiment are both provided with a plurality of bushings 7, and the plurality of bushings 7 are evenly arranged along the circumferential direction of the movable jaw roller 4 or the fixed jaw roller 3, and two adjacent bushings 7 are tangent to each other. At this time, the crushing bushing 7 plays a major crushing role, and the plurality of bushings 7 increase the contact surface with the stone, which improves the crushing effect and also makes the durability better. The plurality of bushings 7 arranged tangent to each other will not affect the rotation of the movable jaw roller 4 or the fixed jaw roller 3, but will ensure that the adjacent bushings 7 are always tangent to each other during the rotation of the movable jaw roller 4 or the fixed jaw roller 3, so as to prevent the crushed stone from entering between the movable jaw roller 4 or the fixed jaw roller 3 and the first active sprocket 10 and the second active sprocket 14, and to prevent the stone from affecting the stable transmission of the whole machine. Furthermore, the bushing 7 is in the shape of a regular hexagonal prism, and the bushing 7 is made of alloy steel, so as to ensure the stable transmission of the whole machine and the bushing 7 to effectively crush the crushed stone. During the rotation of the liner 7, each surface of the liner 7 can be effectively used, which can further improve the durability of the liner 7 and thus extend the life of the entire stone crushing device.

[0033] In summary, the present invention is a stone crushing device for highway engineering construction, in which the eccentric shaft 5 drives the second chain transmission assembly and the movable jaw roller 4 arranged on the second jaw bed 2 to swing up and down periodically. When the stone is put into the crushing chamber 6 composed of the movable jaw roller 4 and the fixed jaw roller 3 for crushing, under the action of the first chain transmission assembly and the second chain transmission assembly, the plurality of fixed jaw rollers 3 and the plurality of movable jaw rollers 4 can rotate continuously with the rotation of the first chain transmission assembly and the second chain transmission assembly. At this time, the plurality of fixed jaw rollers 3 and the plurality of movable jaw rollers 4 rotate to the position of contacting with the stone in turn to crush the stone. In this process, the plurality of fixed jaw rollers 3 and the plurality of movable jaw rollers 4 rotate to the position where extrusion can be generated in turn. Therefore, in the process of crushing, the plurality of fixed jaw rollers 3 and the plurality of movable jaw rollers 4 can be cyclically worn, and because the plurality of fixed jaw rollers 3 and the plurality of movable jaw rollers 4 are also provided with a liner 7 with a hexagonal cross-section on the far-travel surface, each surface of the liner 7 of the fixed jaw roller 3 and the movable jaw roller 4 can play a crushing role during the self-rotation process. Therefore, the present invention improves the problem of low service life of the existing jaw crusher.

[0034] The embodiments described above are only preferred specific implementation methods of the present invention, and the protection scope of the present invention is not limited thereto. Any simple changes or equivalent replacements of the technical solutions that can be obviously obtained by any technician familiar with the field within the technical scope disclosed in the present invention belong to the protection scope of the present invention.

Claims

1. A stone crushing device for highway engineering construction, comprising a frame body, on which a first jaw bed (1) and a second jaw bed (2) are arranged opposite to each other, and an eccentric shaft (5) is also arranged on the frame body, and the second jaw bed (2) is connected to the frame body through the eccentric shaft (5), characterized in that: Also includes: A fixed jaw unit, comprising a first chain transmission assembly arranged on a first jaw bed (1) and a plurality of fixed jaw rollers (3), wherein a first chain (12) on the first chain transmission assembly is formed by connecting a plurality of first chain plates (13), a plurality of fixed jaw rollers (3) are arranged on an outer chain plate of the first chain plate (13), and two adjacent fixed jaw rollers (3) are tangent to each other; The movable jaw unit comprises a second chain transmission assembly arranged on a second jaw bed (2) and a plurality of movable jaw rollers (4), wherein the second chain transmission assembly is arranged opposite to the first chain transmission assembly, wherein the second chain (16) on the second chain transmission assembly is connected by a plurality of second chain plates (17), and the plurality of movable jaw rollers (4) are arranged on an outer chain plate of the second chain plate (17), and two adjacent movable jaw rollers (4) are tangent to each other.

2. A stone crushing device for highway engineering construction according to claim 1, characterized in that: A first mounting plate is arranged on the outer link plate of the first chain plate (13), the fixed jaw roller (3) is rotatably arranged on the first mounting plate via a first rotating shaft, a second mounting plate is arranged on the outer link plate of the second chain plate (17), and the movable jaw roller (4) is rotatably arranged on the second mounting plate via a second rotating shaft.

3. A stone crushing device for highway engineering construction according to claim 2, characterized in that: A special-shaped gear plate (8) is also provided on the outer side of the first chain plate (13) and the second chain plate (17) and rotates with the first chain plate (13) and the second chain plate (17); meshing teeth are provided on the special-shaped gear plate (8); and a transmission component capable of driving the movable jaw roller (4) and the fixed jaw roller (3) to rotate in the opposite direction is provided between the special-shaped gear plate (8) and the movable jaw roller (4) and the fixed jaw roller (3).

4. A stone crushing device for highway engineering construction according to claim 3, characterized in that: The transmission assembly comprises a fixing ring (9) arranged on the outer ring of the special-shaped gear plate (8), the fixing ring (9) being fixed on the first jaw bed (1) or the second jaw bed (2), the fixing ring (9) being respectively provided with a first gear (18) meshing with meshing teeth on the special-shaped gear plate (8), and the ends of the first rotating shaft and the second rotating shaft are both provided with a second gear (19) meshing with the first gear (18).

5. The stone crushing device for highway engineering construction according to claim 2, characterized in that: A plurality of liner sleeves (7) are arranged on the outer sides of the movable jaw roller (4) and the fixed jaw roller (3); the plurality of liner sleeves (7) are evenly arranged along the circumferential direction of the movable jaw roller (4) or the fixed jaw roller (3), and two adjacent liner sleeves (7) are tangent to each other.

6. A stone crushing device for highway engineering construction according to claim 5, characterized in that: The liner (7) is in the shape of a regular hexagonal prism.

7. The stone crushing device for highway engineering construction according to claim 5, characterized in that: The liner (7) is made of alloy steel.

8. The stone crushing device for highway engineering construction according to claim 5, characterized in that: The first chain transmission assembly comprises a first driving sprocket (10), a first driven sprocket (11) and a first chain (12); the first driving sprocket (10) and the first driven sprocket (11) are mounted on the first jaw bed (1) from top to bottom; the first chain (12) is arranged on the outer sides of the first driving sprocket (10) and the first driven sprocket (11); the second chain transmission assembly comprises a second driving sprocket (14), a second driven sprocket (15) and a second chain (16); the second driving sprocket (14) and the second driven sprocket (15) are mounted on the second jaw bed (2) from top to bottom; the second chain (16) is arranged on the outer sides of the second driving sprocket (14) and the second driven sprocket (15).

9. A stone crushing device for highway engineering construction according to claim 8, characterized in that: The first driving sprocket (10) and the second driving sprocket (14) are both provided with motors for driving them to rotate, and the first driving sprocket (10) and the second driving sprocket (14) rotate in opposite directions.

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