Aggregate crushing device for the preparation of impermeable and crack-resistant recycled concrete

Abstract

This utility model belongs to the field of stone crushing technology, specifically an aggregate crushing device for the preparation of impermeable and crack-resistant recycled concrete. It includes a machine body, a stationary jaw plate, and a movable jaw plate. The stationary jaw plate is fixed to the inner wall of the machine body by bolts. The stationary jaw plate is movably installed on one side. An eccentric shaft is rotatably inserted into the top of the movable jaw plate. An inertia wheel is fixedly connected to one end of the eccentric shaft, and a driven wheel is fixedly connected to the other end. Both the inertia wheel and the driven wheel consist of a connecting seat, a guide rod, and a wheel rim. A counterweight is slidably mounted on the guide rod, and a tension spring is connected to the bottom of the counterweight. After rotation, the inertia wheel and the driven wheel will throw the counterweight out under the action of centrifugal force. After the counterweight is thrown out, the rotational inertia of the inertia wheel and the driven wheel is increased, thereby increasing the driving force on the movable jaw plate. This makes the movable jaw plate and the stationary jaw plate less labor-intensive when crushing harder stones, reducing energy consumption and making it more energy-efficient.

Description

Technical Field

[0001] This utility model relates to the field of stone crushing technology, specifically to an aggregate crushing device for the preparation of impermeable and crack-resistant recycled concrete. Background Technology

[0002] Jaw crushers, also known as jaw breakers, are mainly used for medium-sized crushing of various ores and large materials. They are widely used in mining, metallurgy, building materials, highways, railways, water conservancy, and chemical industries. The maximum compressive strength of the material being crushed is 320 MPa. Performance characteristics include a large crushing ratio, uniform product particle size, simple structure, reliable performance, easy maintenance, and low operating costs.

[0003] Currently, patent CN112041080B discloses a jaw crusher having a fixed jaw and a movable jaw, forming a crushing chamber and a crushing gap between them. The movable jaw is driven by a crusher driver to generate crushing motion. An overload protection mechanism is assigned to one of the jaws, preferably to the movable jaw. The overload protection mechanism includes a control unit that, in the event of an overload, moves the jaws relative to each other to increase the crushing gap. In this jaw crusher, improved operation is achieved if the actuator unit is driven by the kinetic energy of the driven part of the jaw crusher, particularly the flywheel or the crusher driver that drives the movable jaw, and gap adjustment is achieved by the actuator unit acting on at least one actuator using a transmission medium.

[0004] Existing jaw crushers use a drive motor to power the jaw plates when crushing stone. Since the stone is hard, the drive motor needs to provide strong power to the jaw plates during crushing, resulting in high energy consumption and poor energy efficiency during operation. To solve the above problems, this application proposes an aggregate crushing device for the preparation of impermeable and crack-resistant recycled concrete. Utility Model Content

[0005] (I) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes an aggregate crushing device for the preparation of impermeable and crack-resistant recycled concrete. After the inertia wheel and driven wheel rotate, the counterweight will be thrown out under the action of centrifugal force. After the counterweight is thrown out, the rotational inertia of the inertia wheel and driven wheel can be increased, thereby enhancing the driving force on the moving jaw plate. This makes it easier for the moving jaw plate and stationary jaw plate to crush harder stones, thereby reducing power consumption and making the device more energy-efficient, thus solving the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, this utility model provides an aggregate crushing device for the preparation of impermeable and crack-resistant recycled concrete, including a machine body, a stationary jaw plate and a movable jaw plate. The stationary jaw plate is fixed to the inner wall of the machine body by bolts. The stationary jaw plate is movably installed on one side of the stationary jaw plate. An eccentric shaft is rotatably inserted into the top of the movable jaw plate. An inertia wheel is fixedly connected to one end of the eccentric shaft, and a driven wheel is fixedly connected to the other end of the eccentric shaft.

[0009] Both the inertial wheel and the driven wheel are composed of a connecting seat, a guide rod, and a wheel rim;

[0010] Each guide rod is slidably equipped with a counterweight, and a tension spring is connected to the bottom of the counterweight. The bottom of the tension spring is connected to the surface of the connecting seat.

[0011] Preferably, a drive motor is installed on the outer wall surface of the machine body, and the drive wheel on the power output end of the drive motor is connected to the driven wheel via a belt.

[0012] Preferably, a buffer seat is connected to the top of the guide rod, and the buffer seat is fixed to the inner wall of the wheel rim.

[0013] Preferably, locking screws are welded to both sides of the counterweight, and locking nuts are threaded onto the locking screws.

[0014] Preferably, the counterweight has movable force-adding blocks on both sides, and a through-hole is provided in the middle of the force-adding block, and the locking screw is inserted into the through-hole.

[0015] Preferably, positioning holes are provided on both sides of the counterweight and the surface of the force-adding block, and the positioning holes are located on both sides of the locking screw.

[0016] Preferably, a positioning post is provided on the other side surface of the force-adding block at a position corresponding to the positioning hole, and the positioning post is inserted into the positioning hole.

[0017] The above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0018] 1. In this utility model, after the inertia wheel and driven wheel rotate, the counterweight will be thrown out under the action of centrifugal force. After the counterweight is thrown out, the rotational inertia of the inertia wheel and driven wheel can be increased, thereby increasing the driving force on the moving jaw plate. This makes it easier for the moving jaw plate and stationary jaw plate to crush harder stones, thereby reducing power consumption and making it more energy-efficient.

[0019] 2. In this utility model, the force-adding block is inserted into the locking screw through the insertion hole and into the positioning hole through the positioning pin, which can play a positioning role in the installation of the force-adding block. The force-adding block can be quickly fixed by matching the locking screw with the locking nut. The force-adding block can increase the weight of the counterweight, which can further increase the inertia of the inertia wheel and the driven wheel when rotating, making it easier to crush the stone, reducing power consumption and making it more energy-efficient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the aggregate crushing device for preparing impermeable and crack-resistant recycled concrete according to this utility model.

[0021] Figure 2 This is a cross-sectional structural schematic diagram of the aggregate crushing device for preparing impermeable and crack-resistant recycled concrete according to this utility model.

[0022] Figure 3 This is a schematic diagram of the inertial wheel structure of the aggregate crushing device for preparing impermeable and crack-resistant recycled concrete according to this utility model.

[0023] Figure 4 This is a schematic diagram of the force-adding block assembly structure of the aggregate crushing device for preparing impermeable and crack-resistant recycled concrete according to this utility model.

[0024] Figure label:

[0025] 1. Body; 2. Stationary jaw plate; 3. Moving jaw plate; 4. Eccentric shaft; 5. Drive motor; 6. Inertia wheel; 7. Driven wheel; 8. Connecting seat; 9. Guide rod; 10. Wheel rim; 11. Tension spring; 12. Counterweight; 13. Buffer seat; 14. Force-applying block; 15. Positioning pin; 16. Positioning hole; 17. Locking screw. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0027] like Figure 1-4 As shown, the aggregate crushing device for preparing impermeable and crack-resistant recycled concrete proposed in this utility model includes a machine body 1, a stationary jaw plate 2 and a movable jaw plate 3. The stationary jaw plate 2 is fixed to the inner wall of the machine body 1 by bolts. The stationary jaw plate 2 is movably installed on one side of the stationary jaw plate 2. An eccentric shaft 4 is rotatably inserted into the top of the movable jaw plate 3. An inertia wheel 6 is fixedly connected to one end of the eccentric shaft 4, and a driven wheel 7 is fixedly connected to the other end of the eccentric shaft 4.

[0028] Both the inertial wheel 6 and the driven wheel 7 are composed of a connecting seat 8, a guide rod 9, and a wheel rim 10;

[0029] Each guide rod 9 is slidably provided with a counterweight 12, and a tension spring 11 is connected to the bottom of the counterweight 12. The bottom of the tension spring 11 is connected to the surface of the connecting seat 8.

[0030] It should be noted that the driven wheel 7 can drive the movable jaw plate 3 to swing via the eccentric shaft 4. The movable jaw plate 3 and the stationary jaw plate 2 squeeze the stone, which can quickly crush the stone. The other end of the eccentric shaft 4 is connected to the inertia wheel 6. Both the inertia wheel 6 and the driven wheel 7 are equipped with guide rods 9, and counterweights 12 are slidably mounted on the guide rods 9. After the inertia wheel 6 and the driven wheel 7 rotate, the counterweights 12 will be thrown out under the action of centrifugal force. The counterweights 12 will impact the buffer seat 13, and the buffer seat 13 can cushion the counterweights 12. 2. It acts as a buffer, reducing the collision between the counterweight 12 and the wheel rim 10. After the counterweight 12 is thrown out, it can increase the rotational inertia of the inertia wheel 6 and the driven wheel 7, thereby increasing the driving force on the moving jaw plate 3. This makes it easier for the moving jaw plate 3 and the stationary jaw plate 2 to crush harder stones, thus reducing power consumption and making it more energy-efficient. After the inertia wheel 6 and the driven wheel 7 stop rotating, the tension spring 11 applies a pulling force to the counterweight 12, which can automatically reset the counterweight 12. The inertia wheel 6 and the driven wheel 7 are more effortless when starting.

[0031] In this embodiment, as Figure 1 As shown, a drive motor 5 is installed on the outer wall surface of the body 1, and the drive wheel on the power output end of the drive motor 5 is connected to the driven wheel 7 via a belt.

[0032] It should be noted that the drive motor 5 drives the driven wheel 7 via a belt, and the driven wheel 7 can drive the moving jaw plate 3 to swing through the eccentric shaft 4.

[0033] In this embodiment, as Figure 3 As shown, a buffer seat 13 is connected to the top of the guide rod 9, and the buffer seat 13 is fixed to the inner wall of the wheel rim 10.

[0034] It should be noted that the counterweight 12 will impact the buffer seat 13, which can buffer the counterweight 12 and reduce the collision between the counterweight 12 and the wheel rim 10.

[0035] In this embodiment, as Figure 3As shown, locking screws 17 are welded to both sides of the counterweight 12, and locking nuts are threaded onto the locking screws 17. Force-adding blocks 14 are movably arranged on both sides of the counterweight 12, and insertion holes are formed through the center of each force-adding block 14. The locking screws 17 are inserted into these insertion holes. Positioning holes 16 are formed on both sides of the counterweight 12 and the surface of the force-adding blocks 14. The positioning holes 16 are located on both sides of the locking screws 17. A positioning post 15 is provided on the other side of the force-adding block 14 at a position corresponding to the positioning hole 16, and the positioning post 15 is inserted into the positioning hole 16.

[0036] It should be noted that the force-adding block 14 is inserted into the locking screw 17 through the insertion hole and into the positioning hole 16 through the positioning pin 15. This can play a positioning role in the installation of the force-adding block 14. The locking screw 17 and the locking nut can be used to quickly fix the force-adding block 14. The force-adding block 14 can increase the weight of the counterweight 12, which can further increase the inertia of the inertia wheel 6 and the driven wheel 7 when they rotate. This makes it easier to crush the stone, thereby reducing power consumption and making it more energy-efficient.

[0037] The working principle and usage process of this utility model are as follows: The drive motor 5 drives the driven wheel 7 via a belt. The driven wheel 7 drives the moving jaw plate 3 to swing via the eccentric shaft 4. The moving jaw plate 3 and the stationary jaw plate 2 squeeze the stone, which can quickly crush the stone. The other end of the eccentric shaft 4 is connected to an inertia wheel 6. Both the inertia wheel 6 and the driven wheel 7 are equipped with guide rods 9, and counterweights 12 are slidably mounted on the guide rods 9. After the inertia wheel 6 and the driven wheel 7 rotate, the counterweights 12 will be thrown out under the action of centrifugal force. The counterweights 12 will hit the buffer seat 13. The buffer seat 13 can buffer the counterweights 12 and reduce the collision between the counterweights 12 and the wheel rim 10. After the counterweights 12 are thrown out, they can increase the inertia wheel. The rotational inertia of wheel 6 and driven wheel 7 is used to increase the driving force on moving jaw plate 3, making it easier for moving jaw plate 3 and stationary jaw plate 2 to crush harder stones, thus reducing power consumption and making the operation more energy-efficient. Both sides of counterweight block 12 are connected to locking screws 17. The force-adding block 14 is inserted into the locking screws 17 through the insertion hole and into the positioning hole 16 through the positioning pin 15, which can position the force-adding block 14 during installation. The force-adding block 14 can be quickly fixed by the locking screws 17 and locking nuts. The force-adding block 14 can increase the weight of counterweight block 12, further increasing the rotational inertia of wheel 6 and driven wheel 7, making it easier to crush stones, thus reducing power consumption and making the operation more energy-efficient.

[0038] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims or their equivalents.

Claims

1. An aggregate crushing device for preparing impermeable and crack-resistant recycled concrete, comprising a body (1), a stationary jaw plate (2), and a movable jaw plate (3), wherein the stationary jaw plate (2) is fixed to the inner wall of the body (1) by bolts, and the stationary jaw plate (2) is movably installed on one side of the stationary jaw plate (3), characterized in that, An eccentric shaft (4) is rotatably inserted into the top of the moving jaw plate (3). One end of the eccentric shaft (4) is fixedly connected to an inertia wheel (6), and the other end of the eccentric shaft (4) is fixedly connected to a driven wheel (7). Both the inertial wheel (6) and the driven wheel (7) are composed of a connecting seat (8), a guide rod (9) and a wheel rim (10); Each guide rod (9) is slidably provided with a counterweight (12), and a tension spring (11) is connected to the bottom of the counterweight (12). The bottom of the tension spring (11) is connected to the surface of the connecting seat (8).

2. The aggregate crushing device for the preparation of anti-penetrating and anti-cracking recycled concrete according to claim 1, characterized in that, A drive motor (5) is installed on the outer wall surface of the body (1), and the drive wheel on the power output end of the drive motor (5) is connected to the driven wheel (7) by a belt.

3. The aggregate crushing device for the preparation of anti-penetrating and anti-cracking recycled concrete according to claim 2, characterized in that, The top of the guide rod (9) is connected to a buffer seat (13), which is fixed to the inner wall of the wheel rim (10).

4. The aggregate crushing device for preparing impermeable and crack-resistant recycled concrete according to claim 3, characterized in that, The counterweight (12) has locking screws (17) welded to both sides of its surface, and locking nuts are threaded onto the locking screws (17).

5. The aggregate crushing device for the preparation of anti-penetrating and anti-cracking recycled concrete according to claim 4, characterized in that, The counterweight (12) has movably provided force-adding blocks (14) on both sides, and the force-adding block (14) has a through-hole in the middle, and the locking screw (17) is inserted into the through-hole.

6. The aggregate crushing device for the preparation of anti-penetrating and anti-cracking recycled concrete according to claim 5, characterized in that, Positioning holes (16) are provided on both sides of the counterweight (12) and the surface of the force-adding block (14), and the positioning holes (16) are located on both sides of the locking screw (17).

7. The aggregate crushing device for the preparation of anti-penetrating and anti-cracking recycled concrete according to claim 6, characterized in that, The other side surface of the force-adding block (14) is provided with a positioning post (15) corresponding to the position of the positioning hole (16), and the positioning post (15) is inserted into the positioning hole (16).

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