Roadbed crushing device for road and bridge construction

Abstract

The utility model provides a road bridge construction roadbed crushing device, which comprises a bottom plate, a motor, a feeding mechanism and a crushing mechanism, an inclined plate is integrally formed on the surface of the bottom plate, the feeding mechanism is placed on the surface of the inclined plate, the tail end of the inclined plate is provided with a discharge port, the end part of the bottom plate is welded with a rear baffle plate, and the rear baffle plate is welded with the motor. According to the stone crusher disclosed by the utility model, the crushing process is completed by virtue of the contact between the independent extrusion plate at the bottom and stones, and only the independent extrusion plate and the corresponding crushing convex tooth part are replaced subsequently; the replacement cost of accessories is reduced, the replacement process is simple and convenient, the independent extrusion plates at different positions can gradually move, so that the abrasion area is more uniform, the feeding, crushing and discharging processes are simultaneously realized only through single power equipment, and it is ensured that materials can be quickly rolled and discharged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of jaw crusher, concretely is a roadbed breaking device for road and bridge construction. BACKGROUND

[0002] In the process of road and bridge construction, the roadbed material often needs to be broken, and the roadbed breaking device is needed. According to the prior art, such as the roadbed breaking device for road and bridge construction disclosed in Chinese patent document CN209934817U, the disclosed technical solution drives the groove to rotate during the rotation of the wheel disc, so that the groove can lift the sieve plate to the next groove through the cam. The spring drives the sliding sleeve to move by contraction, and the sliding sleeve drives the sieve plate to move along the sliding rod, realizing the repeated shaking of the sieve plate and facilitating the screening of waste materials.

[0003] According to the disclosed technical solution, the roadbed breaking device for road and bridge construction in the prior art often uses a crusher to achieve the breaking effect. The jaw crusher is suitable for hard and high-strength stones. However, the existing jaw crusher has a sloping breaking area, and the wear of the inner wall is not uniform because the frequency of use is different in different areas. Therefore, the entire structure needs to be replaced when maintaining and replacing the subsequent wear structure, which is high in maintenance cost. On the other hand, the conventional jaw crusher uses different power systems to realize the processes of material conveying, breaking, and discharging, resulting in large equipment size and low energy utilization rate. SUMMARY

[0004] To solve the problems in the background art, the utility model provides a roadbed breaking device for road and bridge construction. The independent extrusion plate at the bottom contacts the stone to complete the breaking process. Only the independent extrusion plate and the corresponding breaking teeth need to be replaced, reducing the cost of replacing parts and making the replacement process simple and convenient. The independent extrusion plates at different positions can gradually move, making the wear area more uniform. Only a single power device can realize the processes of feeding, breaking, and discharging, and ensure that the materials can be quickly rolled out.

[0005] To achieve the above-mentioned purpose, the utility model is implemented by the following technical solution: a roadbed breaking device for road and bridge construction, comprising a breaking device body, the breaking device body comprising a bottom plate, a motor, a feeding mechanism, and a breaking mechanism, the surface of the bottom plate is integrally formed with an inclined plate, the surface of the inclined plate is placed with a feeding mechanism, the end of the inclined plate is provided with a discharge port, the end of the bottom plate is welded with a back plate, and the side of the discharge port is provided with a rotating base, the inner side of the rotating base is inserted with a plug-in shaft, and the breaking mechanism is installed on the surface of the plug-in shaft.

[0006] Furthermore, the feeding mechanism includes a feeding plate, a support frame, and a top plate. The bottom of the feeding plate is in contact with the surface of the inclined plate. One end of the feeding plate is integrally formed with a support frame, and the top of the support frame is integrally formed with a top plate.

[0007] Furthermore, one end of the feeding mechanism is provided with a feeding port, which is located in the middle area of ​​the support frame, and the end of the inclined plate is embedded into the inside of the discharge port by a locking pin.

[0008] Furthermore, the base plate has columns welded to its surface, a drive shaft is inserted into the inner side of the top of the column, a motor is screwed to the outer side of one of the columns, and a cam is mounted on the surface of the drive shaft.

[0009] Furthermore, one end of the drive shaft passes through the surface of the column and is connected to the output end of the motor, while the other end of the drive shaft is embedded in the inner side of another column through a bearing. The cam rotates and is used to abut against the surface of the feeding mechanism or the crushing mechanism.

[0010] Furthermore, the crushing mechanism includes a crushing plate, a pressure plate, and an independent extrusion plate. The pressure plate is integrally formed on the top of the crushing plate, and the bottom of the crushing plate is fitted onto the surface of the insertion shaft through an opening.

[0011] Furthermore, a connecting rod is welded to the top of the crushing plate, a tension spring is installed at the top of the connecting rod, the top of the tension spring is welded to the surface of the rear baffle, and a baffle strip is integrally formed on the side of the crushing plate, with a slot opened on the inner side of the baffle strip.

[0012] Furthermore, an independent extrusion plate is inserted inside the slot, and a breaking protrusion is inserted at the bottom of the independent extrusion plate. A notch is opened at the bottom or top of the stop bar, and a rotating clamping plate is movably connected to the side of the notch. The sides of each adjacent independent extrusion plate fit together, and the cam presses against the top of the pressure plate after rotation.

[0013] The beneficial effects of this utility model are:

[0014] 1. This road and bridge construction subgrade crushing device completes the crushing process by contacting the stones with the independent extrusion plate at the bottom. Subsequently, only the independent extrusion plate and the corresponding crushing protrusions need to be replaced, which reduces the cost of replacing parts. Moreover, during replacement and installation, the used independent extrusion plate can be pulled out from the bottom or top of both sides of the crushing mechanism, or a new independent extrusion plate can be inserted, making the replacement process simple and convenient.

[0015] 2. Because the road and bridge construction subgrade crushing device is tilted as a whole, and multiple independent extrusion plates are installed side by side on the inner side of the crushing mechanism, after the bottom independent extrusion plate with high usage frequency is removed, each layer of independent extrusion plates above will automatically slide downward, so that the independent extrusion plates in different positions can gradually move, ensuring that the wear of the entire wear area is more uniform.

[0016] 3. The road and bridge construction subgrade crushing device uses a motor and cam to control the crushing mechanism to press down, thereby achieving the crushing effect on the stone. The discharge mechanism also uses the rotation of the cam to slightly lift up during the time the crushing mechanism is raised, ultimately creating a vibration state to assist in the discharge. Thus, the feeding, crushing and discharge processes are realized simultaneously with a single power device, ensuring that the material can be quickly rolled out. Attached Figure Description

[0017] Fig. 1 This is a structural schematic diagram of the external appearance of a roadbed breaking device for road and bridge construction according to this utility model;

[0018] Fig. 2 This is an exploded view of the feeding mechanism of this utility model;

[0019] Fig. 3 This is a side sectional view of the present invention;

[0020] Fig. 4 This is an exploded view of the crushing mechanism of this utility model;

[0021] In the diagram: 1. Base plate; 2. Inclined plate; 3. Column; 4. Rear baffle; 5. Feed inlet; 6. Motor; 7. Feeding mechanism; 8. Crushing mechanism; 9. Discharge port; 10. Feed plate; 11. Support frame; 12. Top plate; 13. Rotating base; 14. Insert shaft; 15. Drive shaft; 16. Cam; 17. Connecting rod; 18. Tension spring; 19. Crushing plate; 20. Pressure plate; 21. Stop bar; 22. Slot; 23. Notch; 24. Rotating clamping plate; 25. Independent extrusion plate; 26. Crushing protrusion tooth. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figs. 1 to 4This utility model provides the following technical solution: a road and bridge construction subgrade crushing device, comprising a crushing device body, the crushing device body including a base plate 1, a motor 6, a feeding mechanism 7, and a crushing mechanism 8. An inclined plate 2 is integrally formed on the surface of the base plate 1, the feeding mechanism 7 is placed on the surface of the inclined plate 2, a discharge port 9 is provided at the end of the inclined plate 2, a rear baffle 4 is welded to the end of the base plate 1, and a rotating base 13 is provided on the side of the discharge port 9. A connecting shaft 14 is inserted into the inner side of the rotating base 13, and the crushing mechanism 8 is mounted on the surface of the connecting shaft 14. This crushing device is used for crushing road and bridge construction subgrade stone materials.

[0024] When using this invention, large stones to be crushed are placed onto the surface of the feed plate 10 through the feed inlet 5. After starting the motor 6, the motor 6 periodically applies downward pressure to the bottom crushing mechanism 8. This pressure is used to crush the stones rolling down from the bottom. At the same time, the top plate 12 is linked to control the entire feed mechanism 7 to vibrate periodically. This vibration effect is used to shake the stones on the feed plate 10 towards the bottom to accelerate their discharge. After long-term use, the independent extrusion plate 25 can be removed from the bottom through the slot 22 area inside the crushing mechanism 8, and then the independent extrusion plate 25 can be inserted and replaced from the top of the slot 22 on the other side of the crushing plate 19.

[0025] In this embodiment, the feeding mechanism 7 includes a feeding plate 10, a support frame 11, and a top plate 12. The bottom of the feeding plate 10 is in contact with the surface of the inclined plate 2. The support frame 11 is integrally formed at one end of the feeding plate 10, and the top plate 12 is integrally formed at the top of the support frame 11. A feeding port 5 is provided at one end of the feeding mechanism 7, located in the middle area of ​​the support frame 11. The end of the inclined plate 2 is embedded into the inner side of the discharge port 9 via a locking pin. Specifically, after the stones to be crushed are placed onto the feeding plate 10 through the feeding port 5, the feeding plate 10 automatically extends its inclination towards the discharge port 9 at the bottom and rolls. During the rolling process, the distance between the feeding plate 10 and the crushing plate 19 gradually decreases, thereby achieving the purpose of crushing the stones during the rolling process.

[0026] In this embodiment, a column 3 is welded to the surface of the base plate 1. A drive shaft 15 is inserted into the inner side of the top of the column 3. A motor 6 is screwed to the outer side of one of the columns 3. A cam 16 is mounted on the surface of the drive shaft 15. One end of the drive shaft 15 passes through the surface of the column 3 and connects to the output end of the motor 6. The other end of the drive shaft 15 is embedded in the inner side of another column 3 through a bearing. After the cam 16 rotates, it is used to abut against the surface of the feeding mechanism 7 or the crushing mechanism 8. The crushing mechanism 8 is controlled to press down by the motor 6 and the cam 16 to achieve the crushing effect on the stone. The discharge mechanism is also slightly raised during the time when the crushing mechanism 8 is raised by the rotation of the cam 16, and finally forms a vibration state to assist the discharge. Thus, the feeding, crushing and discharge processes are realized simultaneously by a single power device, and the material can be quickly rolled out.

[0027] Specifically, after starting the motor 6, the motor 6 controls the drive shaft 15 to rotate. The drive shaft 15 drives the cam 16 on the surface to rotate at a constant speed. When the cam 16 rotates the raised area towards the bottom, it applies downward pressure to the bearing plate 20, making the entire crushing plate 19 form a force-saving lever structure. It presses down around the bottom insertion shaft 14, ultimately achieving the purpose of squeezing and crushing the stones on the rollers on the bottom crushing plate 19. At the same time, when the cam 16 rotates to point upward, it can lift the top plate 12 part upward with the raised area. After being lifted, it can drive the entire bottom feed plate 10 to vibrate upward with the help of the support frame 11. This vibration can cause the stones accumulated on the plate to roll down faster, reducing the probability of blockage.

[0028] In this embodiment, the crushing mechanism 8 includes a crushing plate 19, a pressure plate 20, and an independent extrusion plate 25. The pressure plate 20 is integrally formed on the top of the crushing plate 19, and the bottom of the crushing plate 19 is fitted onto the surface of the insertion shaft 14 through a hole. A connecting rod 17 is welded to the top of the crushing plate 19, and a tension spring 18 is installed at the top of the connecting rod 17. The top of the tension spring 18 is welded to the surface of the rear baffle 4. A stop bar 21 is integrally formed on the side of the crushing plate 19, and a slot 22 is formed on the inner side of the stop bar 21. An independent extrusion plate 25 is inserted into the slot 22, and a crushing protrusion 26 is inserted into the bottom of the independent extrusion plate 25. A notch 23 is formed at the bottom or top of the stop bar 21, and a rotating clamping plate 24 is movably connected to the side of the notch 23. The sides of each adjacent independent extrusion plate 25 fit together, and the cam 16 presses against the pressure plate 20 after rotation. The crushing process is completed by the contact between the independent compression plate 25 at the bottom and the stone. Subsequent replacements only require the independent compression plate 25 and its corresponding crushing teeth 26, reducing replacement costs. Furthermore, during replacement and installation, the used independent compression plate 25 can be pulled out from either the bottom or top of the crushing mechanism 8, or a new independent compression plate 25 can be inserted, making the replacement process simple and convenient. Because the crushing mechanism 8 is tilted and multiple independent compression plates 25 are installed side-by-side on its inner side, removing the frequently used bottom compression plates 25 will automatically slide each layer of upper compression plates 25 downwards, allowing the compression plates 25 in different positions to gradually move and ensuring more uniform wear across the entire wear area.

[0029] Specifically, when the crushing plate 19 is pressed down by the cam 16, each independent extrusion plate 25 will be extruded downwards. The independent extrusion plates 25 near the discharge port 9 will have a larger contact range with the stones. Therefore, the wear rate of the crushing teeth 26 on the bottommost independent extrusion plate 25 is faster. The bottom rotating clamping plate 24 is opened periodically, and the bottommost independent extrusion plate 25 is pulled out directly from the side. At this time, a gap is created in the area where the bottommost independent extrusion plate 25 is located. The top independent extrusion plate 25 can be automatically slid down along the slot 22, and a new gap is created in the top area of ​​the slot 22. At this time, a new independent extrusion plate 25 and crushing teeth 26 are inserted from the other side through the notch 23 at the top of the slot 22, thus realizing the replacement process of the independent extrusion plate 25.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A roadbed crushing device for road and bridge construction, comprising a crushing device body, characterized in that: The crushing device body includes a base plate (1), a motor (6), a feeding mechanism (7) and a crushing mechanism (8). An inclined plate (2) is integrally formed on the surface of the base plate (1). The feeding mechanism (7) is placed on the surface of the inclined plate (2). A discharge port (9) is opened at the end of the inclined plate (2). A rear baffle (4) is welded to the end of the base plate (1). A rotating base (13) is provided on the side of the discharge port (9). A plug shaft (14) is inserted into the inner side of the rotating base (13). The crushing mechanism (8) is installed on the surface of the plug shaft (14).

2. The roadbed breaking device for road and bridge construction according to claim 1, characterized in that: The feeding mechanism (7) includes a feeding plate (10), a support frame (11) and a top plate (12). The bottom of the feeding plate (10) is in contact with the surface of the inclined plate (2). One end of the feeding plate (10) is integrally formed with the support frame (11), and the top of the support frame (11) is integrally formed with the top plate (12).

3. The roadbed breaking device for road and bridge construction according to claim 2, characterized in that: The feeding mechanism (7) has a feeding port (5) at one end, which is located in the middle area of ​​the support frame (11). The end of the inclined plate (2) is embedded into the inside of the discharge port (9) by a locking pin.

4. The roadbed breaking device for road and bridge construction according to claim 2, characterized in that: The base plate (1) is welded with a column (3), and a drive shaft (15) is inserted into the inner side of the top of the column (3). A motor (6) is screwed to the outer side of one of the columns (3), and a cam (16) is installed on the surface of the drive shaft (15).

5. A roadbed breaking device for road and bridge construction according to claim 4, characterized in that: One end of the drive shaft (15) passes through the surface of the column (3) and is connected to the output end of the motor (6). The other end of the drive shaft (15) is embedded in the inner side of another column (3) through a bearing. The cam (16) rotates and is used to abut against the surface of the feeding mechanism (7) or the crushing mechanism (8).

6. A roadbed breaking device for road and bridge construction according to claim 4, characterized in that: The crushing mechanism (8) includes a crushing plate (19), a pressure plate (20) and an independent extrusion plate (25). The pressure plate (20) is integrally formed on the top of the crushing plate (19), and the bottom of the crushing plate (19) is fitted onto the surface of the insertion shaft (14) through an opening.

7. A roadbed breaking device for road and bridge construction according to claim 6, characterized in that: A connecting rod (17) is welded to the top of the crushing plate (19), and a tension spring (18) is installed at the top of the connecting rod (17). The top of the tension spring (18) is welded to the surface of the rear baffle (4). A baffle strip (21) is integrally formed on the side of the crushing plate (19), and a slot (22) is opened on the inner side of the baffle strip (21).

8. A roadbed breaking device for road and bridge construction according to claim 7, characterized in that: An independent extrusion plate (25) is inserted inside the slot (22). A breaking protrusion (26) is inserted at the bottom of the independent extrusion plate (25). A notch (23) is opened at the bottom or top of the baffle (21). A rotating clamping plate (24) is movably connected to the side of the notch (23). The sides of each adjacent independent extrusion plate (25) fit together. The cam (16) presses against the pressure plate (20) after rotation.

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