An environmentally friendly jaw crusher for stone

Abstract

This utility model discloses an environmentally friendly jaw crusher for stone, relating to the technical field of crushing and processing equipment. It includes a crushing box with an inlet and an outlet at the top and bottom, respectively. A stationary jaw plate and a movable jaw plate are respectively installed on the left and right sides of the inlet inside the crushing box. A left side guard is fixed to the left side wall of the stationary jaw plate, and a right side guard is fixed to the right side wall of the movable jaw plate. The stationary jaw plate is laterally slidably connected to the inner wall of the crushing box. A linear actuator is installed at the bottom of the inner wall of the crushing box on the left side of the stationary jaw plate. A connecting platform is fixed to the telescopic end of the linear actuator, and an adjusting seat is fixed to the top of the connecting platform. The side walls of the left side guard and the adjusting seat are inclined surfaces. A T-shaped slider is fixed to the inclined surface of the adjusting seat. A guide rail is fixed to the side wall of the left side guard, and a T-shaped groove is opened on the guide rail, with the T-shaped slider positioned within the T-shaped groove. The crushing gap can be expanded by adjusting the linear actuator, providing sufficient loosening space for blockages in the stone.

Description

Technical Field

[0001] This utility model relates to the field of crushing and processing equipment technology, specifically to an environmentally friendly stone jaw crusher. Background Technology

[0002] Jaw crushers are currently the most widely used primary crushing equipment in fields such as sand and gravel aggregates, metal mines, and construction solid waste treatment. Their basic components include a frame, stationary jaw plate, moving jaw plate, and transmission mechanism. Raw materials enter the "V"-shaped crushing chamber formed by the stationary and moving jaw plates through the top feed inlet. Driven by an eccentric shaft, the moving jaw plate periodically moves closer to or further away from the stationary jaw plate, thereby compressing, splitting, and bending the stone. The crushed stone is continuously discharged through the bottom discharge outlet.

[0003] The existing jaw crusher has a fixed gap between the stationary jaw plate and the movable jaw plate, making it difficult to adjust according to the actual required stone size. The stationary jaw plate is usually directly fixed to the inner wall of the crushing chamber. When stone blocks the space between the stationary and movable jaw plates, it is difficult to adjust the gap to accommodate the blockage or remove and reposition the stone. During the stone crushing process, if stones with excessively large particle sizes, uneven hardness, or high moisture content are encountered, blockages easily form between the stationary and movable jaw plates, causing a "stuck" phenomenon. Because the gap cannot be adjusted in real time, operators must stop the machine and manually clear the blockage by tapping or prying. Furthermore, this type of crusher is difficult to meet the requirements for crushing stones of different particle sizes. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes an environmentally friendly jaw crusher for stone materials, comprising a crushing box, with an inlet and an outlet at the top and bottom of the crushing box, respectively. A stationary jaw plate and a movable jaw plate are respectively installed on the left and right sides of the inlet inside the crushing box. A left side guard is fixed to the left side wall of the stationary jaw plate, and a right side guard is fixed to the right side wall of the movable jaw plate. The stationary jaw plate is laterally slidably connected to the inner wall of the crushing box. A linear actuator is installed at the bottom of the inner wall of the crushing box on the left side of the stationary jaw plate. A connecting platform is fixed to the telescopic end of the linear actuator, and an adjusting seat is fixed to the top of the connecting platform. The side walls of the left side guard and the adjusting seat are inclined surfaces. A T-shaped slider is fixed to the inclined surface of the adjusting seat. A guide rail is fixed to the side wall of the left side guard, and a T-shaped groove is provided on the guide rail, with the T-shaped slider positioned within the T-shaped groove.

[0005] Furthermore, the top of the right side guard seat is provided with a movable hole, in which an eccentric wheel is rotatably connected. An eccentric shaft is provided, passing through the crushing box and fixed to the eccentric wheel. An external drive assembly for driving the eccentric shaft to rotate is provided outside the crushing box. A connecting seat is fixed to the side of the right side guard seat on the inner wall of the crushing box. A connecting rod is connected between the connecting seat and the side wall of the right side guard seat. The two ends of the connecting rod are respectively hinged to the connecting seat and the right side guard seat.

[0006] Furthermore, the top of the left side guard seat is slidably connected to the top of the inner wall of the crushing box, and a guide rail two is fixed at the bottom of the inner wall of the crushing box below the left side guard seat. A guide groove is opened in the middle of the guide rail two, and a slide bar that is slidably connected to the guide groove is fixed at the bottom of the left side guard seat.

[0007] Furthermore, anti-stagnation blocks are fixed to the front and rear walls of the upper end of the slide bar. The bottom of the anti-stagnation block is slidably connected to the top of the guide rail 2. The slide bar and the anti-stagnation block can push away the stone particles stuck on the guide rail 2.

[0008] Furthermore, positioning strips are fixed on the upper and lower sides of the adjusting seat on the left side wall inside the crushing box. Contact switches are installed at the bottom of the upper positioning strip and the top of the lower positioning strip. The contact switches are electrically connected to the linear drive.

[0009] The beneficial effects of this utility model are as follows: 1. The lateral position of the stationary jaw plate can be adjusted by the inclined cooperation structure of the linear drive, the adjusting seat and the left guard seat. The operator can adjust the gap between the stationary jaw plate and the moving jaw plate without disassembling the equipment to adapt to the crushing requirements of stones of different sizes. When stone blockage occurs between the stationary jaw plate and the moving jaw plate, the crushing gap can be widened by adjusting the linear drive to provide sufficient loosening space for the blocked stone.

[0010] 2. The top of the stationary jaw plate is slidably connected to the top of the inner wall of the crushing chamber via a guide rail slider, and the bottom is connected to the guide groove of the second guide rail via a slide bar, forming a double guide and limit structure, which effectively ensures that there is no offset or jamming when the stationary jaw plate moves laterally. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the internal structure of the present invention; Figure 2 for Figure 1 Schematic diagram of the connection structure of the middle guide rail 1; Figure 3 for Figure 1 Schematic diagram of the connection structure of the middle guide rail 2.

[0012] The following are the annotations in the attached diagram: 1. Crushing box; 101. Feed inlet; 102. Discharge outlet; 2. Stationary jaw plate; 3. Moving jaw plate; 4. Left guard plate; 5. Right guard plate; 6. Linear actuator; 7. Connecting platform; 8. Adjusting seat; 9. T-shaped slider; 10. Guide rail one; 11. Eccentric wheel; 12. Eccentric shaft; 13. Connecting seat; 14. Connecting rod; 15. Guide rail two; 16. Sliding bar; 17. Anti-retention block; 18. Positioning bar; 19. Contact switch. Detailed Implementation

[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] The present invention will be further described below with reference to the accompanying drawings: An environmentally friendly jaw crusher for stone, such as Figure 1 and Figure 2 As shown, the device includes a crushing box 1. The top and bottom of the crushing box 1 are respectively provided with a feed inlet 101 and a discharge outlet 102. Inside the crushing box 1, a stationary jaw plate 2 and a movable jaw plate 3 are respectively provided on the left and right sides of the feed inlet 101. A left side guard seat 4 is fixed to the left side wall of the stationary jaw plate 2, and a right side guard seat 5 is fixed to the right side wall of the movable jaw plate 3. The stationary jaw plate 2 is slidably connected to the inner wall of the crushing box 1. A linear actuator 6 is installed at the bottom of the inner wall of the crushing box 1 on the left side of the stationary jaw plate 2. A connecting platform 7 is fixed to the telescopic end of the linear actuator 6. An adjusting seat 8 is fixed to the top of the connecting platform 7. The side walls of the left side guard seat 4 and the adjusting seat 8 that are close to each other are both inclined surfaces. A T-shaped slider 9 is fixed to the inclined surface of the adjusting seat 8. A guide rail 10 is fixed to the side wall of the left side guard seat 4. A T-shaped groove is opened on the guide rail 10, and the T-shaped slider 9 is located in the T-shaped groove.

[0016] like Figure 1 As shown, in this embodiment, the top of the right side guard seat 5 is provided with a movable hole, and an eccentric wheel 11 is rotatably connected in the movable hole. An eccentric shaft 12 is provided and passes through the crushing box 1 and is fixed to the eccentric wheel 11. An external drive assembly for driving the eccentric shaft 12 to rotate is provided outside the crushing box 1. A connecting seat 13 is fixed on the side of the right side guard seat 5 on the inner wall of the crushing box 1. A connecting rod 14 is connected between the connecting seat 13 and the side wall of the right side guard seat 5. The two ends of the connecting rod 14 are respectively hinged to the connecting seat 13 and the right side guard seat 5.

[0017] like Figure 1 and Figure 3 As shown, in this embodiment, the top of the left side guard seat 4 is slidably connected to the top of the inner wall of the crushing box 1. The bottom of the inner wall of the crushing box 1 is fixed with a guide rail 2 15 below the left side guard seat 4. A guide groove is provided in the middle of the guide rail 2 15. A slide bar 16 is fixedly connected to the guide groove at the bottom of the left side guard seat 4. An anti-stagnation block 17 is fixed to the front and rear walls of the upper end of the slide bar 16. The bottom of the anti-stagnation block 17 is slidably connected to the top of the guide rail 2 15. The slide bar 16 and the anti-stagnation block 17 can push away the stone particles stuck on the guide rail 2 15.

[0018] like Figure 1 As shown, in this embodiment, positioning strips 18 are fixed on the upper and lower sides of the adjusting seat 8 on the left side wall inside the crushing box 1. Contact switches 19 are installed at the bottom of the upper positioning strip 18 and the top of the lower positioning strip 18. The contact switches 19 are electrically connected to the linear driver 6.

[0019] The working principle of this utility model is as follows: Spacing adjustment process: If it is necessary to reduce the gap between the stationary jaw plate 2 and the moving jaw plate 3 (to crush smaller-sized stones), the linear actuator 6 is activated to extend outward, driving the adjusting seat 8 to move upward through the connecting platform 7. When the adjusting seat 8 moves upward, the T-shaped slider 9 on its inclined surface slides in the T-shaped groove of the left side guard seat 4. Since the contact surface between the adjusting seat 8 and the left side guard seat 4 is an inclined surface, the vertical upward movement of the adjusting seat 8 is converted into the horizontal rightward movement of the left side guard seat 4 through the inclined surface cooperation (similar to the inclined surface transmission principle). The left side guard seat 4 drives the stationary jaw plate 2 to move to the right synchronously, thereby reducing the gap between the stationary jaw plate 2 and the moving jaw plate 3.

[0020] If it is necessary to increase the gap between the stationary jaw plate 2 and the moving jaw plate 3 (to crush larger-sized stones), the telescopic end of the linear actuator 6 retracts inward, causing the adjusting seat 8 to move downward. The T-shaped slider 9 slides downward in the T-shaped groove. The inclined surface cooperation converts the vertical downward movement of the adjusting seat 8 into the horizontal leftward movement of the left guard seat 4. The left guard seat 4 drives the stationary jaw plate 2 to move to the left synchronously, thereby increasing the gap between the stationary jaw plate 2 and the moving jaw plate 3.

[0021] During this process, the slider at the top of the left side guard seat 4 slides along the guide rail at the top of the inner wall of the crushing box 1, and the bottom slider 16 slides along the guide groove of the second guide rail 15. The double guide structure ensures that the static jaw plate 2 moves smoothly and without deviation in the lateral direction. When the linear actuator 6 drives the static jaw plate 2 to move left and right, the slider 16 at the bottom of the left side guard seat 4 moves synchronously along the guide groove of the second guide rail 15. The anti-stagnation block 17 on the slider 16 moves with the slider 16, which can push the small stone particles stuck on the second guide rail 15 to the discharge port 102. During the movement of the adjusting seat 8, the positioning strips 18 on its upper and lower sides play a limiting role. When the adjusting seat 8 moves upward to contact the contact switch 19 at the bottom of the upper positioning strip 18, and when the adjusting seat 8 moves downward to contact the contact switch 19 at the top of the lower positioning strip 18, the linear actuator 6 stops extending to avoid the adjusting seat 8 moving excessively.

[0022] Crushing process: The motor of the external drive assembly (not shown in the figure) is started. The motor output shaft drives the reducer input shaft to rotate via a belt, and transmits power to the eccentric shaft 12, causing the eccentric shaft 12 to rotate. The eccentric shaft 12 is fixedly connected to the eccentric wheel 11 inside the right side guard seat 5. The eccentric wheel 11 rotates synchronously with the eccentric shaft 12. When the eccentric shaft 12 rotates, the movement trajectory of each point on the moving jaw is from the circumference of the suspension point (radius equal to the eccentricity) to an ellipse gradually downwards. The ellipse becomes more skewed towards the lower part until the trajectory of the lower part connecting with the thrust plate is an arc. This realizes the swinging of the moving jaw plate 3.

[0023] The stone to be crushed is fed into the feed inlet 101 at the top of the crushing box 1. Under the action of gravity, the stone falls into the crushing area between the stationary jaw plate 2 and the movable jaw plate 3. When the movable jaw plate 3 swings, it exerts squeezing and shearing forces on the stone, crushing the stone. The crushed stone is discharged from the discharge outlet 102 at the bottom under the action of gravity.

[0024] When stone blockage occurs between the stationary jaw plate 2 and the moving jaw plate 3 (manifested as no stone is discharged from the discharge port 102, increased equipment operating noise, and abnormally high motor current), the linear actuator 6 is activated to control the retraction of the telescopic end, causing the adjusting seat 8 to move downwards. Through the inclined plane cooperation, the left guard seat 4 and the stationary jaw plate 2 are pushed to the left, widening the gap between the stationary jaw plate 2 and the moving jaw plate 3 until the gap is large enough to loosen the blocked stone. After the gap is widened, if the blocked stone can loosen on its own and be discharged from the discharge port 102, the gap is adjusted back to the original crushing gap by the linear actuator 6, and the external drive component motor is restarted to continue the crushing operation. If the blocked stone still cannot be discharged on its own, the operator can use a special tool (such as a long rod) to reach into the feed port 101 and gently pry the blocked stone to assist in its discharge.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An environmentally friendly jaw crusher for stone, comprising a crushing box (1), wherein a feed inlet (101) and a discharge outlet (102) are respectively provided at the top and bottom of the crushing box (1), and a stationary jaw plate (2) and a movable jaw plate (3) are respectively provided on the left and right sides of the feed inlet (101) inside the crushing box (1), wherein a left side guard seat (4) is fixed on the left side wall of the stationary jaw plate (2), and a right side guard seat (5) is fixed on the right side wall of the movable jaw plate (3); characterized in that: The stationary jaw plate (2) is slidably connected to the inner wall of the crushing box (1). A linear actuator (6) is installed at the bottom of the inner wall of the crushing box (1) on the left side of the stationary jaw plate (2). A connecting platform (7) is fixed at the telescopic end of the linear actuator (6). An adjusting seat (8) is fixed at the top of the connecting platform (7). The side walls of the left side guard seat (4) and the adjusting seat (8) are inclined. A T-shaped slider (9) is fixed on the inclined surface of the adjusting seat (8). A guide rail (10) is fixed on the side wall of the left side guard seat (4). A T-shaped groove is opened on the guide rail (10). The T-shaped slider (9) is located in the T-shaped groove.

2. The environmentally friendly jaw crusher for stone as described in claim 1, characterized in that: The top of the right side guard seat (5) is provided with a movable hole, in which an eccentric wheel (11) is rotatably connected. An eccentric shaft (12) is provided, which passes through the crushing box (1) and is fixed to the eccentric wheel (11). An external drive assembly for driving the eccentric shaft (12) to rotate is provided outside the crushing box (1). A connecting seat (13) is fixed on the side of the right side guard seat (5) on the inner wall of the crushing box (1). A connecting rod (14) is connected between the connecting seat (13) and the side wall of the right side guard seat (5). The two ends of the connecting rod (14) are respectively hinged to the connecting seat (13) and the right side guard seat (5).

3. The environmentally friendly jaw crusher for stone as described in claim 1, characterized in that: The top of the left side guard seat (4) is slidably connected to the top of the inner wall of the crushing box (1). The bottom of the inner wall of the crushing box (1) is fixed with a guide rail (15) below the left side guard seat (4). A guide groove is provided in the middle of the guide rail (15). A slide bar (16) is slidably connected to the guide groove at the bottom of the left side guard seat (4).

4. The environmentally friendly jaw crusher for stone as described in claim 3, characterized in that: The slide bar (16) has an anti-stagnation block (17) fixed to the front and rear walls of the upper end. The bottom of the anti-stagnation block (17) is slidably connected to the top of the guide rail (15). The slide bar (16) and the anti-stagnation block (17) can push away the stone particles stuck on the guide rail (15).

5. The environmentally friendly jaw crusher for stone as described in claim 1, characterized in that: The inner left side wall of the crushing box (1) is fixed with positioning strips (18) on the upper and lower sides of the adjusting seat (8). The bottom of the upper positioning strip (18) and the top of the lower positioning strip (18) are equipped with contact switches (19), which are electrically connected to the linear driver (6).

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