A sandstone breaking device

Abstract

This utility model discloses a sand and gravel crushing device, which mainly includes a support frame, a crushing chamber, a protective frame, a motor unit, a crushing roller, and a water tank. A water supply pipe is provided on the side of the water tank, and valves are provided at both ends of the water supply pipe. Two sets of rotating rods are rotatably installed on both sides of the upper end of the crushing chamber, and the two sets of rotating rods are connected by a transmission component. The water tank supplies water to the pipeline through a hose, and the nozzle sprays water onto the upper end of the crushing chamber. When one end of the rotating rod rotates, it drives the other end of the rotating rod to rotate through the transmission component, thereby causing one side of the pipeline to retract and the other side of the pipeline to rotate to the upper part of the crushing chamber. When the rotating rod rotates, it drives the valve rod to rotate, and the rotation of the valve rod controls the opening and closing of the valve. This utility model solves the problems of poor dust suppression effect and inconvenience for operators to switch the direction of dust suppression spray in small-scale sand and gravel crushing operations. It can effectively facilitate the operation of operators, improve work efficiency, enhance the dust suppression spray effect, and reduce the impact on the service life of equipment.

Description

Technical Field

[0001] This application relates to the field of sand and gravel production, specifically to a sand and gravel crushing device. Background Technology

[0002] A sand and gravel crusher is a primary processing device that crushes blocky rocks and ores into target particle sizes through mechanical compression or impact. Currently, manually fed sand and gravel crushers are widely used in small and medium-sized quarries or construction waste processing scenarios due to their small size, ease of movement, and low operating costs. Traditional equipment emphasizes durability and ease of maintenance in its structure, employing open or semi-closed feeding channels to accommodate irregularly shaped stones. Some models also incorporate spray pipes to suppress dust emissions during the crushing process. However, such devices still have significant drawbacks in actual operation: while the open feeding design facilitates manual feeding, the lack of effective sealing at the connection area between the crushing chamber and the feed inlet causes high-concentration dust generated during stone collisions to directly spill out.

[0003] For example, Chinese utility model patent CN222606530U discloses a sand and gravel crusher. Its main technical solution includes a water tank connected to the outer wall of a feed box, a water pump installed on the top of the water tank, a support frame on the top of the feed box, a connecting pipe at one end of the support frame, and a nozzle at the bottom of the connecting pipe. A fixing frame is fixedly connected to the top of the feed box, a guide rod is connected to the inner side of the fixing frame, a connecting sleeve is connected to one end of the support frame, a mounting base is connected to the outer wall of the connecting sleeve, a spring is installed inside the mounting base, and a movable spring is connected to one end of the spring. The movable block has a locking pin at one end and a lever block connected to its outer wall. The water tank of the nozzle machine effectively reduces dust at the feed inlet by spraying water onto the feed inlet. However, the guide rod design makes it very inconvenient for operators to move the nozzle. Operators need to move to the rear end of the guide rod to adjust it and then return to the side to feed the material. In addition, the nozzle is positioned high, and its downward spray makes it easy for water to enter the crushing chamber and mix with the sand and gravel to a certain extent, which may reduce the service life of the equipment and reduce the quality of the output.

[0004] Therefore, in order to solve the above problems, this application provides a sand and gravel crushing device that allows operators to easily adjust the spray direction for material feeding and forms a horizontal mist curtain for dust suppression. Utility Model Content

[0005] The purpose of this invention is to provide a sand and gravel crushing device to solve the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sand and gravel crushing device, including a support and a crushing chamber; the lower end of the crushing chamber is bolted to the upper end of the support, a protective frame is bolted to the upper end of the support, a motor unit is bolted inside the protective frame, two sets of relatively rotating crushing rollers are rotatably arranged inside the crushing chamber, the output end of the motor unit is inserted into the end of the crushing rollers, a water tank is detachably connected to the upper end of the protective frame, a water supply pipe is arranged on the side of the water tank, valves are arranged at both ends of the water supply pipe, and two sets of rotating rods are rotatably arranged on both sides of the upper end of the crushing chamber, the two sets of rotating rods are connected by a transmission component;

[0007] One end of the rotating rod is inserted into the transmission component, and the other end of the rotating rod is inserted into the valve stem. A pipeline is fixedly connected to the side of the rotating rod through a connecting plate. Nozzles are evenly arranged on the side of the pipeline, and one end of the pipeline is connected to the valve through a flexible hose.

[0008] The water tank supplies water to the pipeline through a hose, and the nozzle sprays water onto the upper part of the crushing chamber. When the rotating rod at one end rotates, it drives the rotating rod at the other end to rotate through the transmission component, thereby causing the pipeline on one side to retract and the pipeline on the other side to rotate to the upper part of the crushing chamber. When the rotating rod rotates, it drives the valve rod to rotate, and the valve rod controls the opening and closing of the valve.

[0009] Through the specially designed transmission assembly, when the operator manually feeds the material from one side of the equipment, pulling the pipe causes the rotating rod to rotate and retract. This, in turn, drives the rotating rod on the other side to rotate synchronously, pulling the pipe out. The rotation of the rotating rod also simultaneously closes the valve on this side and opens the valve on the opposite side. A horizontal mist is sprayed through the nozzles onto the feed area at the top of the crushing chamber, allowing the operator to easily switch pipe positions and facilitate feeding. Simultaneously, the horizontally formed mist curtain effectively suppresses dust within the crushing chamber while preventing water from directly entering the chamber. This effectively improves dust suppression without affecting the equipment's lifespan, further enhancing operator convenience and increasing feeding efficiency.

[0010] Furthermore, the crushing chamber is vertically connected, with an inverted conical feed inlet at the top and receiving chambers on both sides of the top. The rotating rod is connected to the inner wall of the receiving chamber with damping.

[0011] The set-in receiving chamber allows the pipeline and nozzles on the operator's side to be rotated and stored inside the receiving chamber. This allows the crushing chamber to protect the pipeline machine nozzles during feeding operations, preventing damage from falling sand and gravel.

[0012] Furthermore, the transmission assembly includes a synchronous pulley and a synchronous belt. One end of the synchronous pulley is inserted into the end of the rotating rod away from the valve, and the other end of the synchronous pulley is rotatably connected to the inner wall of the receiving chamber. The synchronous pulleys are connected by a synchronous belt drive. Both ends of the synchronous belt are fixedly connected to the side walls of the synchronous pulleys. The synchronous belt is a trapezoidal synchronous belt. The side of the synchronous pulley is provided with teeth that are compatible with the synchronous belt. The side of the receiving chamber is provided with a strip-shaped through groove for the synchronous belt to move.

[0013] Furthermore, a water pump is installed at the connection between the water tank and the water supply pipe, and the water supply pipe is embedded inside the front end of the crushing chamber and extends into the receiving chamber.

[0014] Furthermore, the side of the protective frame is provided with an opening and closing plate. One end of the opening and closing plate is hinged to the protective frame, and the other end of the opening and closing plate is snapped to the protective frame. The end of the crushing roller away from the motor unit is connected to a transmission gear. The two sets of transmission gears mesh with each other. The rear end of the crushing chamber is bolted to a protective cover, and the transmission gear is positioned inside the protective cover.

[0015] Compared with existing technologies, it has the following beneficial effects:

[0016] This utility model provides a sand and gravel crushing device. Through a transmission assembly, when an operator manually feeds material from one side of the equipment, pulling the pipe causes the rotating rod to rotate and retract. This, in turn, drives the rotating rod on the other side to rotate synchronously, pulling the pipe out. The rotation of the rotating rod also simultaneously closes the valve on this side and opens the valve on the opposite side. A horizontal mist is sprayed through nozzles onto the feed area at the top of the crushing chamber, allowing the operator to easily switch pipe positions and facilitate feeding. Simultaneously, the horizontally formed mist curtain effectively suppresses dust within the crushing chamber while preventing water from directly entering the chamber. This effectively improves dust suppression without affecting the equipment's lifespan, further enhancing operator convenience and increasing feeding efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a sand and gravel crushing device according to the present invention;

[0018] Figure 2 This is a schematic diagram of the sand and gravel crushing device of this utility model from another angle;

[0019] Figure 3 This is a schematic diagram of the receiving chamber structure of a sand and gravel crushing device according to the present invention;

[0020] Figure 4 This is a schematic diagram showing the water tank connection relationship of a sand and gravel crushing device according to this utility model;

[0021] Figure 5 This is a schematic diagram of the valve connection relationship of a sand and gravel crushing device according to the present invention;

[0022] Figure 6 This is a partial structural diagram of the transmission component of a sand and gravel crushing device according to the present invention;

[0023] Figure 7 This is a plan view of the transmission component of a sand and gravel crushing device according to the present invention;

[0024] Figure 8 This is a schematic diagram of the internal structure of the crushing chamber of a sand and gravel crushing device according to this utility model.

[0025] In the diagram: 1-Support; 2-Crushing chamber; 21-Feed inlet; 22-Containing chamber; 23-Strip channel; 24-Protective cover; 3-Protective frame; 31-Opening and closing plate; 4-Motor unit; 5-Crushing roller; 51-Transmission gear; 6-Water tank; 61-Water supply pipe; 62-Valve; 7-Rotor; 8-Transmission assembly; 81-Synchronous pulley; 82-Synchronous belt; 9-Pipeline; 91-Nozzle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1 to 8 As shown, this utility model provides the following technical solution: a sand and gravel crushing device; including a support 1 and a crushing chamber 2; the lower end of the crushing chamber 2 is bolted to the upper end of the support 1, a protective frame 3 is bolted to the upper end of the support 1, a motor unit 4 is bolted to the protective frame 3, two sets of relatively rotating crushing rollers 5 are rotatably arranged inside the crushing chamber 2, the output end of the motor unit 4 is inserted into the end of the crushing roller 5, a water tank 6 is detachably connected to the upper end of the protective frame 3, a water supply pipe 61 is arranged on the side of the water tank 6, valves 62 are arranged at both ends of the water supply pipe 61, and two sets of rotating rods 7 are rotatably arranged on both sides of the upper end of the crushing chamber 2, and the two sets of rotating rods 7 are connected by a transmission assembly 8.

[0028] One end of the rotating rod 7 is inserted into the transmission assembly 8, and the other end of the rotating rod 7 is inserted into the valve stem of the valve 62. The side of the rotating rod 7 is fixedly connected to the pipe 9 through the connecting plate. The pipe 9 is evenly arranged with nozzles 91 on the side. One end of the pipe 9 is connected to the valve 62 through a flexible hose.

[0029] Water tank 6 supplies water to pipe 9 through hose. Nozzle 91 sprays water onto the upper part of crushing chamber 2. When one end of the rotating rod 7 rotates, it drives the other end of the rotating rod 7 to rotate through the transmission component 8, thereby causing one side of pipe 9 to retract and the other side of pipe 9 to rotate to the upper part of crushing chamber 2. When the rotating rod 7 rotates, it drives the valve stem to rotate, and the valve 62 controls the opening and closing of the valve stem.

[0030] Among them, the protective frame 3 is sealed with a waterproof seal to prevent water from overflowing from the water tank 6 and invading the motor unit 4. At the same time, the setting of the protective frame 3 prevents the motor unit 4 from contacting the external environment, prevents accidents during equipment use, and reduces the impact of harsh environments on the motor.

[0031] The nozzles 91 evenly arranged on the pipeline 9 are pressure atomizing nozzles 91, which make the water generated from the nozzles 91 form a dense water mist. The synchronous operation of multiple sets of nozzles 91 forms a horizontal mist curtain on the crushing chamber 2. When sand and gravel enter the crushing chamber 2 and dust is generated, the dust is suppressed by the mist curtain and cannot protrude from the feed point of the crushing chamber 2, thus playing a role in dust reduction. At the same time, the horizontally sprayed mist curtain does not directly generate dust into the interior of the crushing chamber 2, reducing the corrosion of mechanical components such as the crushing roller 5 and avoiding mixing with the crushed sand and gravel.

[0032] See Figure 3 The crushing chamber 2 is vertically connected, with an inverted conical feed inlet 21 at the top. Receiving chambers 22 are located on both sides of the top of the crushing chamber 2. A rotating rod 7 is connected to the inner wall of the receiving chamber 22 via a damped rotational connection. The receiving chambers 22 allow the rotating rod 7 to rotate, causing the pipes 9 and nozzles 91 to move circumferentially into the receiving chambers 22. This prevents damage to the pipes 9 and nozzles 91 if sand or gravel falls during feeding. The receiving chambers 22 protect the pipes 9 and nozzles 91. Simultaneously, the inverted conical feed inlet 21 effectively prevents sand and gravel residue at the top of the crushing chamber 2, guiding the sand and gravel during feeding. The increased size of the upper opening makes it easier for operators to scoop sand and gravel into the feed inlet 21.

[0033] After entering the feed inlet 21, the sand and gravel naturally slide onto the crushing roller 5 inside the crushing chamber 2. The relatively rotating crushing roller 5 then crushes the sand and gravel. The crushed sand and gravel is discharged through the opening at the bottom of the crushing chamber 2. The sand and gravel can be collected by placing a collection device at the bottom of the crushing chamber 2 in advance.

[0034] Specifically, during the sand and gravel crushing operation, the starting motor unit 4 drives the crushing roller 5 to rotate relative to each other, and the water tank 6 is started, so that the water tank 6 pumps water into the pipeline 9 through the hose. The nozzle 91 then sprays water mist and forms a mist curtain at the feed inlet 21 for dust suppression. When the operator needs to perform the feeding operation on one side, he pulls the pipeline 9 on that side, so that the pipeline 9 rotates in a circular motion and drives the rotating rod 7 to rotate. The rotation of the rotating rod 7 drives the valve stem to rotate, thereby cutting off the water circuit on that side. The pipeline 9 and the nozzle 91 then enter the receiving chamber 22 for storage. At the same time, the rotation of the rotating rod 7 drives the transmission component 8 to move. The transmission component 8 then drives the rotating rod 7 on the other side to rotate synchronously, causing the pipeline 9 and the nozzle 91 on the other side to rotate in a circular motion to the top of the crushing chamber 2, and opening the valve 62 on the opposite side, so that the water circuit on the opposite side is connected, and the nozzle 91 on the opposite side begins to spray.

[0035] As another embodiment, such as Figures 3 to 7 As shown, the transmission assembly 8 includes a synchronous pulley 81 and a synchronous belt 82. One end of the synchronous pulley 81 is inserted into the end of the rotating rod 7 away from the valve 62, and the other end of the synchronous pulley 81 is rotatably connected to the inner wall of the receiving chamber 22. The synchronous pulleys 81 are connected to each other by the synchronous belt 82, and both ends of the synchronous belt 82 are fixedly connected to the side walls of the synchronous pulleys 81.

[0036] It should be noted that the synchronous pulley 81 and synchronous belt 82 used in this application are different from traditional chain drives or belt drives. The feature is that the two ends of the synchronous belt 82 are fixedly connected to the inner walls of the synchronous pulley 81 on both sides. The synchronous pulley 81 is limited by the rotating rod 7 and the pipeline 9 and will not rotate 360°. Therefore, the fixed connection design can effectively prevent belt slippage.

[0037] When one side of the pipe 9 is above the crushing chamber 2, the synchronous belt 82 on that side is not wrapped around the synchronous pulley 81, while the synchronous belt 82 on the opposite side is wrapped around the synchronous pulley 81. When the rotating rod 7 on that side rotates, it drives the synchronous pulley 81 to rotate, which in turn drives the synchronous belt 82 to move, causing the synchronous belt 82 to pull the synchronous pulley 81 on the opposite side to rotate, which in turn drives the rotating rod 7 on the opposite side to rotate, thus achieving the effect of the opposite side pipe 9 rising when the pipe 9 on that side is pulled down.

[0038] Furthermore, other alternative solutions can be used to achieve the same technical effect, such as using a gear and rack structure, where the rack is displaced when the gear rotates, thereby driving the gear on the other side to rotate.

[0039] Furthermore, the synchronous belt 82 is a trapezoidal synchronous belt 82, and the synchronous pulley 81 has teeth on its side that are compatible with the synchronous belt 82. This enhances the structural strength and stability of the transmission assembly 8.

[0040] See Figure 7The side of the receiving compartment 22 is provided with a strip-shaped through groove 23 for the movement of the synchronous belt 82. The synchronous belt 82 is positioned inside the strip-shaped through groove 23, and the limiting of the synchronous belt 82 by the strip-shaped through groove 23 makes the transmission assembly 8 more stable and reliable during transmission.

[0041] As another embodiment, such as Figure 2 , Figure 4 as well as Figure 5 As shown, a water pump is installed at the connection between the water tank 6 and the water supply pipe 61. The water supply pipe 61 is embedded inside the front end of the crushing chamber 2 and extends into the receiving chamber 22. When spraying is required to suppress dust, the water pump is started, and the water pump pumps the water in the water tank 6 into the water supply pipe 61. The water flows in the direction of the hose in the water supply pipe 61 and enters the pipeline 9.

[0042] Water tank 6 is detachable and is equipped with both inlet and outlet pipes for daily water replacement and replenishment.

[0043] See Figure 2 The protective frame 3 has an opening and closing plate 31 on its side. One end of the opening and closing plate 31 is hinged to the protective frame 3, and the other end of the opening and closing plate 31 is snapped to the protective frame 3. When the motor unit 4 needs to be maintained and inspected, the protective frame 3 can be opened through the opening and closing plate 31 for operation.

[0044] See Figure 8 A transmission gear 51 is inserted into the end of the crushing roller 5 away from the motor unit 4, and the two sets of transmission gears 51 mesh with each other. When the motor unit 4 starts, it drives one set of crushing rollers 5 to rotate, which in turn drives the other set of crushing rollers 5 to rotate relative to each other through the transmission gear 51, so that the two sets of crushing rollers 5 rotate to crush the sand and gravel.

[0045] See Figure 2 The rear end of the crushing chamber 2 is bolted to a protective cover 24, and the transmission gear 51 is positioned inside the protective cover 24.

[0046] Working principle: During sand and gravel crushing, the starting motor 4 drives the crushing roller 5 to rotate relative to each other, and the water tank 6 is started, so that the water tank 6 pumps water into the pipeline 9 through the hose. The nozzle 91 then sprays water mist and forms a mist curtain at the feed inlet 21 for dust suppression. When the operator needs to feed on one side, he pulls the pipeline 9 on that side, so that the pipeline 9 rotates in a circle and drives the rotating rod 7 to rotate. This causes the valve stem to rotate and cut off the water circuit on that side. The pipeline 9 and the nozzle 91 then enter the storage bin 22 for storage. At the same time, the rotation of the rotating rod 7 drives the transmission component 8 to move. The transmission component 8 then drives the rotating rod 7 on the other side to rotate synchronously, so that the pipeline 9 and the nozzle 91 on the other side rotate in a circle to the top of the crushing bin 2 and open the valve 62 on the opposite side to connect the water circuit on the opposite side. The nozzle 91 on the opposite side begins to spray. The operator shovels the sand and gravel into the feed inlet 21 and crushes the sand and gravel into sand and gravel through the crushing roller 5. The crushed sand and gravel is then discharged through the bottom of the crushing bin 2.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sand and gravel crushing device, characterized in that... The device includes a support (1) and a crushing chamber (2); the lower end of the crushing chamber (2) is bolted to the upper end of the support (1), a protective frame (3) is bolted to the upper end of the support (1), a motor unit (4) is bolted to the protective frame (3), two sets of relatively rotating crushing rollers (5) are rotatably arranged inside the crushing chamber (2), the output end of the motor unit (4) is inserted into the end of the crushing roller (5), a water tank (6) is detachably connected to the upper end of the protective frame (3), a water supply pipe (61) is arranged on the side of the water tank (6), and valves (62) are arranged at both ends of the water supply pipe (61). Two sets of rotating rods (7) are rotatably arranged on both sides of the upper end of the crushing chamber (2), and the two sets of rotating rods (7) are connected by a transmission assembly (8). One end of the rotating rod (7) is inserted into the transmission assembly (8), and the other end of the rotating rod (7) is inserted into the valve stem of the valve (62). A pipe (9) is fixedly connected to the side of the rotating rod (7) through a connecting plate. Nozzles (91) are evenly arranged on the side of the pipe (9). One end of the pipe (9) is connected to the valve (62) through a flexible hose. The water tank (6) supplies water to the pipeline (9) through the hose. The nozzle (91) sprays water onto the upper part of the crushing chamber (2). When the rotating rod (7) at one end rotates, it drives the rotating rod (7) at the other end to rotate through the transmission assembly (8), thereby causing the pipeline (9) on one side to retract and the pipeline (9) on the other side to rotate to the upper part of the crushing chamber (2). When the rotating rod (7) rotates, it drives the valve stem to rotate, and the rotation of the valve stem controls the opening and closing of the valve (62).

2. The sand and gravel crushing device according to claim 1, characterized in that, The crushing chamber (2) is vertically connected. The upper end of the crushing chamber (2) is provided with an inverted conical feed inlet (21). The upper sides of the crushing chamber (2) are provided with receiving chambers (22). The rotating rod (7) is connected to the inner wall of the receiving chamber (22) with damping.

3. The sand and gravel crushing device according to claim 2, characterized in that, The transmission assembly (8) includes a synchronous pulley (81) and a synchronous belt (82). One end of the synchronous pulley (81) is inserted into the end of the rotating rod (7) away from the valve (62). The other end of the synchronous pulley (81) is rotatably connected to the inner wall of the receiving chamber (22). The synchronous pulleys (81) are connected to each other by the synchronous belt (82). Both ends of the synchronous belt (82) are fixedly connected to the side walls of the synchronous pulleys (81).

4. The sand and gravel crushing device according to claim 3, characterized in that, The synchronous belt (82) is a trapezoidal synchronous belt (82), and the synchronous pulley (81) has teeth on its side that are compatible with the synchronous belt (82).

5. The sand and gravel crushing device according to claim 3, characterized in that, The side of the receiving chamber (22) is provided with a strip-shaped through groove (23) for the synchronous belt (82) to move.

6. The sand and gravel crushing device according to claim 3, characterized in that, A water pump is provided at the connection between the water tank (6) and the water supply pipe (61). The water supply pipe (61) is embedded in the front end of the crushing chamber (2) and extends into the receiving chamber (22).

7. The sand and gravel crushing device according to claim 1, characterized in that, The protective frame (3) is provided with an opening and closing plate (31) on its side. One end of the opening and closing plate (31) is hinged to the protective frame (3), and the other end of the opening and closing plate (31) is snapped to the protective frame (3).

8. The sand and gravel crushing device according to claim 1, characterized in that, The end of the crushing roller (5) away from the motor unit (4) is connected to a transmission gear (51), and the two sets of transmission gears (51) mesh with each other.

9. The sand and gravel crushing device according to claim 8, characterized in that, The rear end of the crushing chamber (2) is bolted to a protective cover (24), and the transmission gear (51) is positioned inside the protective cover (24).

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