Double-jaw crusher prepared from recycled concrete aggregate

Abstract

According to the double-jaw crusher prepared from the recycled concrete aggregate, a first crushing main shaft and a second crushing main shaft are installed in a crushing box body in parallel, and first crushing hammers are installed on the first crushing main shaft at intervals through first spacer sleeves; second crushing hammers are mounted on the second crushing main shaft at intervals through second spacer sleeves; synchronous transmission mechanisms for driving the first crushing main shaft and the second crushing main shaft to rotate synchronously are mounted at the outer ends of the first crushing main shaft and the second crushing main shaft; the first crushing main shaft is connected with a crushing power device for providing crushing power through a chain transmission mechanism; a discharging port is formed in the bottom end of the crushing box body, and a discharging hopper is arranged at the bottom end of the discharging port. By adopting a double-hammer structural form, the equipment can well adapt to effective crushing of concrete blocks in the recycled concrete preparation process, and the crushing quality is ensured while the crushing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of recycled concrete preparation technology, specifically a double jaw crusher for preparing recycled concrete aggregates. Background Technology

[0002] Recycled concrete is made by crushing and screening construction waste concrete blocks to obtain recycled aggregates. The existing concrete crushing process mainly uses impact crushing equipment. During the crushing process, a single hammer blade throws the concrete block at high speed into the impact jaw plate of the crushing chamber to achieve the purpose of crushing. Impact crushing is usually used for crushing natural stone. However, when it is used in the crushing process of concrete blocks, the final crushed aggregate particle size is usually too large to be directly used in the subsequent preparation of recycled concrete. Secondary crushing is required, which affects the production efficiency to a certain extent. Utility Model Content

[0003] The purpose of this invention is to provide a double jaw crusher for the preparation of recycled concrete aggregates. This equipment, by adopting a double hammer structure, can effectively crush concrete blocks during the preparation of recycled concrete, improving crushing efficiency while ensuring crushing quality. Moreover, it eliminates the need for secondary crushing and screening, and the crushed material is easy to process in subsequent screening.

[0004] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: a double-jaw crusher for preparing recycled concrete aggregate includes a crushing box. Inside the crushing box, a first crushing main shaft and a second crushing main shaft are installed in parallel. A first crushing hammer is installed on the first crushing main shaft at intervals via a first spacer sleeve, and a second crushing hammer is installed on the second crushing main shaft at intervals via a second spacer sleeve. A synchronous transmission mechanism is installed at the outer ends of the first and second crushing main shafts to drive them to rotate synchronously. The first crushing main shaft is connected to a crushing power device for providing crushing power through a chain transmission mechanism. A discharge port is provided at the bottom end of the crushing box, and a discharge hopper is provided at the bottom end of the discharge port.

[0005] The first crushing spindle is rotatably mounted inside the crushing chamber via a first bearing seat;

[0006] The second crushing spindle is rotatably mounted inside the crushing chamber via a second bearing seat.

[0007] The first bearing housing and the second bearing housing are symmetrically mounted on the outer wall of the crushing chamber by fixing bolts; bearings are installed inside the first bearing housing and the second bearing housing.

[0008] The length of both the first and second crushing main shafts within the crushing chamber is a hexagonal prism structure, and the central holes of the first and second breaker hammers are hexagonal holes to match the hexagonal prism structure.

[0009] The first breaker has a first wear-resistant hammer blade fixed to its breaking tip, and the second breaker has a second wear-resistant hammer blade fixed to its breaking tip.

[0010] The synchronous transmission mechanism includes a first gear fixed at the end of the first crushing spindle, which meshes with a second gear mounted on the second crushing spindle.

[0011] The crushing power unit includes a motor, which is fixed to the outer wall of the crushing box via a motor base. The motor is equipped with an explosion-proof junction box, and the output shaft of the motor is connected to a chain drive mechanism to transmit power.

[0012] The chain drive mechanism includes a drive sprocket mounted on the motor output shaft. The drive sprocket is driven by a driven sprocket through a chain. The driven sprocket is mounted on the first crushing main shaft.

[0013] The present invention has the following beneficial effects:

[0014] 1. This utility model equipment adopts a double hammer structure, which can effectively crush concrete blocks in the process of recycled concrete preparation. It improves crushing efficiency while ensuring crushing quality. Moreover, it eliminates the need for secondary crushing and screening, and the crushed material is easy to screen in subsequent processing.

[0015] 2. The first bearing housing described above provides reliable rotational support for the first crushing main shaft, thereby ensuring its smooth rotation.

[0016] 3. The aforementioned fixing bolts ensure reliable fixed installation of the first and second bearing housings.

[0017] 4. The hexagonal prism structure described above enables reliable installation of the first and second hydraulic breakers and allows for torque transmission, while also improving assembly efficiency.

[0018] 5. The first and second wear-resistant hammers mentioned above provide excellent wear resistance, extending service life while ensuring crushing efficiency.

[0019] 6. The synchronous transmission mechanism described above ensures the synchronous rotation of the first and second crushing shafts, thereby ensuring the effective crushing of concrete blocks through the cross-arranged first and second breaker hammers during the crushing process, thus guaranteeing the crushing quality.

[0020] 7. The aforementioned crushing power device can be used to provide power during the crushing process.

[0021] 8. The chain drive mechanism described above can be used to reliably transmit power to the first crushing spindle, thereby realizing the crushing operation. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a first-person perspective 3D view of the present invention.

[0024] Figure 2 This is a two-dimensional view of the present invention from a second perspective.

[0025] Figure 3 This is a three-dimensional view of the present invention from a third perspective.

[0026] Figure 4 This is a four-dimensional view of the present invention.

[0027] Figure 5 This is a side view of the present invention.

[0028] Figure 6 This utility model Figure 5 AA view.

[0029] Figure 7 This is the front view of the present utility model.

[0030] Figure 8 This utility model Figure 7 BB view.

[0031] In the diagram: 1. Explosion-proof junction box; 2. Motor base; 3. Motor; 4. Drive sprocket; 5. Crushing box; 6. Chain; 7. Driven sprocket; 8. First crushing main shaft; 9. First gear; 10. First bearing seat; 11. Second gear; 12. Second bearing seat; 13. Fixing bolt; 14. Second crushing main shaft; 15. Hexagonal prism structure; 16. Second spacer sleeve; 17. Second crusher hammer; 18. Second wear-resistant hammer; 19. First spacer sleeve; 20. First crusher hammer; 21. First wear-resistant hammer; 22. Discharge hopper; 23. Discharge port. Detailed Implementation

[0032] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0033] See Figure 1-8A double-jaw crusher for preparing recycled concrete aggregate includes a crushing chamber 5. Inside the crushing chamber 5, a first crushing main shaft 8 and a second crushing main shaft 14 are installed in parallel. A first crushing hammer 20 is installed on the first crushing main shaft 8 at intervals via a first spacer sleeve 19, and a second crushing hammer 17 is installed on the second crushing main shaft 14 at intervals via a second spacer sleeve 16. Synchronous transmission mechanisms that drive the first and second crushing main shafts 8 and 14 to rotate synchronously are installed at their outer ends. The first crushing main shaft 8 is connected to a crushing power device that provides crushing power via a chain drive mechanism. A discharge port 23 is provided at the bottom of the crushing chamber 5, and a discharge hopper 22 is provided at the bottom of the discharge port 23. This equipment, by adopting a double-hammer structure, can effectively crush concrete blocks during the preparation of recycled concrete, improving crushing efficiency while ensuring crushing quality. Furthermore, it eliminates the need for secondary crushing and screening, and the crushed material is easy to process in subsequent screening.

[0034] Furthermore, the first crushing main shaft 8 is rotatably mounted inside the crushing chamber 5 via a first bearing seat 10. The first bearing seat 10 provides reliable rotational support for the first crushing main shaft 8, thereby ensuring its smooth rotation.

[0035] Furthermore, the second crushing main shaft 14 is rotatably mounted inside the crushing chamber 5 via the second bearing seat 12. The aforementioned second bearing seat 12 provides reliable rotational support for the second crushing main shaft 14, thereby ensuring its smooth rotation.

[0036] Furthermore, the first bearing housing 10 and the second bearing housing 12 are symmetrically mounted on the outer wall of the crushing chamber 5 by fixing bolts 13; bearings 24 are installed inside the first bearing housing 10 and the second bearing housing 12. The fixing bolts 13 ensure reliable fixed installation of the first bearing housing 10 and the second bearing housing 12. The bearings 24 enable smooth rotation of the corresponding first crushing spindle 8 and second crushing spindle 14.

[0037] Furthermore, the length of the first and second crushing spindles 8 and 14 within the crushing housing 5 both adopt hexagonal prism structures 15, and the center holes of the first and second breaker hammers 20 and 17 are hexagonal holes to fit the hexagonal prism structures 15. The hexagonal prism structures 15 enable reliable installation of the first and second breaker hammers 20 and 17, facilitate torque transmission, and improve assembly efficiency.

[0038] Furthermore, a first wear-resistant hammer blade 21 is fixed to the crushing tip of the first breaker 20, and a second wear-resistant hammer blade 18 is fixed to the crushing tip of the second breaker 17. The first wear-resistant hammer blade 21 and the second wear-resistant hammer blade 18 provide excellent wear resistance, extending service life while ensuring crushing efficiency.

[0039] Furthermore, the synchronous transmission mechanism includes a first gear 9 fixed to the end of the first crushing spindle 8, which meshes with a second gear 11 mounted on the second crushing spindle 14. This synchronous transmission mechanism ensures the synchronous rotation of the first crushing spindle 8 and the second crushing spindle 14, thereby guaranteeing the effective crushing of concrete blocks through the cross-arranged first and second breaker hammers 20 and 17 during the crushing process, thus ensuring the crushing quality. During operation, when the crushing power unit drives the first crushing spindle 8 to rotate, the first crushing spindle 8 drives the first gear 9, which in turn synchronously drives the second gear 11, which in turn synchronously drives the second crushing spindle 14.

[0040] Furthermore, the crushing power unit includes a motor 3, which is fixed to the outer wall of the crushing chamber 5 via a motor base 2. An explosion-proof junction box 1 is installed on the motor 3, and the output shaft of the motor 3 is connected to the chain drive mechanism to transmit power. This crushing power unit can provide power during the crushing process. During operation, the motor 3 drives the chain drive mechanism, which in turn drives the corresponding synchronous transmission mechanism.

[0041] Furthermore, the chain drive mechanism includes a drive sprocket 4 mounted on the output shaft of the motor 3. The drive sprocket 4 is driven by a driven sprocket 7 via a chain 6. The driven sprocket 7 is mounted on the first crushing main shaft 8. This chain drive mechanism reliably transmits power to the first crushing main shaft 8, thereby enabling crushing operations. During operation, the motor 3 drives the drive sprocket 4, which in turn drives the chain 6. The chain 6 drives the driven sprocket 7, which in turn drives the first crushing main shaft 8. The first crushing main shaft 8 and the synchronous transmission mechanism then drive the second crushing main shaft 14.

[0042] The working process and principle of this utility model:

[0043] During the crushing of concrete blocks, concrete is fed into the crushing chamber 5. Then, the crushing power unit is started, and the motor 3 drives the drive sprocket 4, which in turn drives the chain 6. The chain 6 drives the driven sprocket 7, which in turn drives the first crushing main shaft 8. The first crushing main shaft 8 drives the first gear 9, which in turn drives the second gear 11. The second gear 11 in turn drives the second crushing main shaft 14. The first crushing main shaft 8 and the second crushing main shaft 14 then drive the corresponding first breaker hammer 20 and second breaker hammer 17 to rotate, thereby crushing the concrete blocks. The crushed aggregate is discharged through the discharge hopper 22 for further screening to prepare the required aggregate.

Claims

1. A double-ogee crusher made of recycled concrete aggregate, characterized in that, The application relates to a double-rotor hammer crusher, which comprises a crushing box (5), a first crushing main shaft (8) and a second crushing main shaft (14) which are arranged in parallel inside the crushing box (5), a first crushing hammer (20) which is arranged on the first crushing main shaft (8) through a first interval sleeve (19), a second crushing hammer (17) which is arranged on the second crushing main shaft (14) through a second interval sleeve (16), a synchronous transmission mechanism which is arranged at the outer end of the first crushing main shaft (8) and the second crushing main shaft (14) and drives the two to rotate synchronously, a crushing power device which is connected with the first crushing main shaft (8) through a chain transmission mechanism and provides a crushing power, and a discharge hopper (22) which is arranged at the bottom of a discharge port (23) of the crushing box (5).

2. The twin impact crusher made of recycled concrete aggregate according to claim 1, characterized in that: The first crushing main shaft (8) is rotatably arranged in the crushing box (5) through a first bearing seat (10). The second crushing main shaft (14) is rotatably arranged in the crushing box (5) through a second bearing seat (12).

3. The twin impact crusher made of recycled concrete aggregate according to claim 2, characterized in that: The first bearing seat (10) and the second bearing seat (12) are symmetrically arranged on the outer wall of the crushing box (5) through fixing bolts (13), and bearings (24) are arranged in the first bearing seat (10) and the second bearing seat (12).

4. The twin impact crusher made of recycled concrete aggregate according to claim 1, characterized in that: The first crushing main shaft (8) and the second crushing main shaft (14) are hexagonal column structures (15) in the length range inside the crushing box (5), and the central holes of the first crushing hammer (20) and the second crushing hammer (17) are hexagonal holes matched with the hexagonal column structures (15).

5. The twin impact crusher made of recycled concrete aggregate according to claim 4, characterized in that: First wear-resistant hammer pieces (21) are arranged at the crushing tip of the first crushing hammer (20), and second wear-resistant hammer pieces (18) are arranged at the crushing tip of the second crushing hammer (17).

6. The twin impact crusher made of recycled concrete aggregate according to claim 4, characterized in that: The synchronous transmission mechanism comprises a first gear (9) arranged at the end of the first crushing main shaft (8), and the first gear (9) is in meshing transmission with a second gear (11) arranged on the second crushing main shaft (14).

7. The twin impact crusher made of recycled concrete aggregate according to claim 4, characterized in that: The crushing power device comprises a motor (3) fixed on the outer wall of the crushing box (5) through a motor base (2), an explosion-proof junction box (1) arranged on the motor (3), and an output shaft of the motor (3) connected with the chain transmission mechanism and transmitting power.

8. The twin impact crusher made of recycled concrete aggregate according to claim 7, characterized in that: The chain transmission mechanism comprises a driving sprocket (4) arranged on the output shaft of the motor (3), and the driving sprocket (4) is in meshing transmission with a driven sprocket (7) through a chain (6), and the driven sprocket (7) is arranged on the first crushing main shaft (8).

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