Silent type stone crusher

Abstract

The utility model relates to a mute type stone crusher which comprises a box body, a crushing cavity in a circular truncated cone shape is arranged in the box body, a feeding opening is formed in the upper portion of the box body, a discharging opening is formed in the lower portion of the box body, a conical crushing body is coaxially arranged in the crushing cavity, and a driving mechanism is arranged below the crushing body. A transition cavity is formed in the position, between the feeding port and the crushing cavity, of the box body, an upper gate plate and an upper sealing mechanism for driving the upper gate plate to seal or open the feeding port are arranged on the position, above the transition cavity, of the box body, and a lower gate plate and a lower sealing mechanism for driving the lower gate plate to communicate or cut off the transition cavity and the crushing cavity are arranged on the position, below the transition cavity, of the box body. A discharging cavity is formed in the position, between the crushing cavity and the discharging opening, of the box body, and a bottom gate plate and a bottom sealing mechanism for driving the bottom gate plate to seal or open the discharging opening are arranged on the position, below the discharging opening, of the box body. By adopting the scheme, the utility model provides the silent type stone crusher which can reduce noise by realizing silent crushing, silent feeding and silent discharging.

Description

Technical Field

[0001] The utility model relates to the field of engineering equipment, and particularly relates to a silent stone crusher. Background Art

[0002] A stone crusher, also known as a stone breaker or rock crusher, is a device for crushing large pieces of ore or rock, and is widely used in industries such as construction, road traffic, and water conservancy. Its working principle is mainly to break large pieces of materials into small pieces or granular materials through different physical actions (such as extrusion, splitting, bending, impact, rolling, etc.).

[0003] The existing stone crusher includes a box body, a crushing cavity in the shape of a frustum of a cone is arranged in the box body, a feed inlet for feeding into the crushing cavity is arranged above the box body, a discharge outlet for discharging from the crushing cavity is arranged below the box body, a crushing body in the shape of a cone is coaxially arranged in the crushing cavity, and a driving mechanism for driving the crushing body to rotate and swing left and right is arranged below the crushing body. When the equipment is running, large stones transported by a conveyor belt enter the crushing cavity from the feed inlet, and the crushing body breaks the large stones into small stones through the change of the distance between the crushing body and the cavity wall of the crushing cavity during eccentric swinging. The small stones fall from the discharge outlet and are transported to the required position by the conveyor belt.

[0004] With the improvement of living standards, noise pollution has been increasingly taken seriously by people. Excessive noise will affect people's rest, study and work. Especially the control of engineering noise is becoming more and more strict. During the operation of a stone crusher, since both the feed inlet and the discharge outlet are open, the noise generated by the crushing body squeezing large stones will spread to the surrounding areas from the feed inlet and the discharge outlet. Therefore, it is necessary to reduce the noise generated by the stone crusher to meet the control requirements of engineering noise. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a silent stone crusher that reduces noise by achieving silent crushing, silent feeding, and silent discharging.

[0006] To achieve the above object, the utility model provides the following technical solutions: It includes a box body, a frustum-shaped crushing cavity is arranged inside the box body, a feed inlet for feeding materials into the crushing cavity is arranged above the box body, and a discharge outlet for discharging materials from the crushing cavity is arranged below. A conical crushing body is coaxially arranged inside the crushing cavity, and a driving mechanism for driving the crushing body to rotate and swing left and right is arranged below the crushing body. It is characterized in that: A transition cavity is arranged between the feed inlet and the crushing cavity of the box body. An upper shutter and an upper closing mechanism for driving the upper shutter to close or open the feed inlet are arranged above the transition cavity of the box body. A lower shutter and a lower closing mechanism for driving the lower shutter to connect or cut off the transition cavity and the crushing cavity are arranged below the transition cavity of the box body. A discharge cavity is arranged between the crushing cavity and the discharge outlet of the box body. A bottom shutter and a bottom closing mechanism for driving the bottom shutter to close or open the discharge outlet are arranged below the discharge outlet of the box body.

[0007] By adopting the above technical solutions, when the driving mechanism drives the crushing body to rotate and swing left and right, the lower shutter cuts off the transition cavity and the crushing cavity, and the bottom shutter closes the discharge outlet, so that the crushing cavity forms a closed environment. The large stones in the crushing cavity are broken into small stones by the crushing body and then enter the discharge cavity, realizing silent crushing. At the same time, the upper shutter opens the feed inlet, and the large stones transported by the conveyor belt in the previous station gradually accumulate in the transition cavity; when the large stones in the crushing cavity are basically broken, the upper shutter first closes the feed inlet, and then the lower shutter connects the transition cavity and the crushing cavity. The large stones in the transition cavity fall into the crushing cavity. Then the lower shutter cuts off the transition cavity and the crushing cavity, and finally the upper shutter opens the feed inlet, realizing silent feeding; when the small stones in the discharge cavity are nearly full, the driving mechanism stops, the bottom shutter opens the discharge outlet, and the conveyor belt in the next station receives and transports the small stones to the required position. After the discharge is completed, the bottom shutter closes the discharge outlet, and the driving mechanism starts, realizing silent discharging. As shown above, silent operation is achieved in all working environments of the crusher to meet the requirements for controlling project noise.

[0008] The utility model is further arranged as follows: The upper closing mechanism includes an upper chute and an upper motor. The upper chute is arranged through the box body along the left and right directions. The upper shutter is slidably matched with the upper chute and partially extends outside the box body. The upper motor is fixed outside the box body and is located below the upper shutter. The upper motor is driven with an upper gear. An upper tooth groove meshing with the upper gear is arranged along the left and right directions below the upper shutter.

[0009] By adopting the above technical solutions, the upper motor accurately controls and stably drives the upper shutter to move along the upper chute through the transmission mode of the upper gear - upper tooth groove, that is, to ensure the accurate movement of the upper shutter.

[0010] The present utility model is further configured as follows: the lower closing mechanism includes a lower chute and a lower motor. The lower chute is arranged through the box body along the left and right directions. The lower gate plate is slidably matched with the lower chute and partially extends outside the box body. The lower motor is fixed outside the box body and located above the lower gate plate. The lower motor is provided with a driving lower gear. A lower tooth groove engaged with the lower gear is arranged along the left and right directions above the lower gate plate.

[0011] By adopting the above technical solution, the lower motor drives the lower gate plate to move along the lower chute in a precise control and stable driving manner through the transmission mode of the lower gear - lower tooth groove, which ensures the accurate movement of the lower gate plate. In addition, the upper motor and the lower motor are concentrated between the upper gate plate and the lower gate plate, making the structure more compact.

[0012] The present utility model is further configured as follows: the bottom gate plate includes a left half plate and a right half plate. The left half plate and the right half plate are respectively located on the left and right sides of the bottom of the box body and are combined to form a circular shape for closing the discharge port. The bottom closing mechanism includes a driving platform arranged around the box body. Supporting feet for lifting the driving platform are respectively arranged around the lower part of the driving platform. The driving platform is hinged with a left air cylinder located above the left half plate and a right air cylinder located above the right half plate. A left hinge seat hinged with the left half plate is arranged on the left side of the box body below the driving platform. The other side of the left half plate relative to the hinge is provided with a left linkage arm. The lower part of the left air cylinder is provided with a left air cylinder shaft hinged with the left linkage arm. A right hinge seat hinged with the right half plate is arranged on the right side of the box body below the driving platform. The other side of the right half plate relative to the hinge is provided with a right linkage arm. The lower part of the right air cylinder is provided with a right air cylinder shaft hinged with the right linkage arm.

[0013] By adopting the above technical solution, the two air cylinders drive the air cylinder shafts to synchronously extend and retract, and drive the left half plate and the right half plate to swing synchronously through the interlinked linkage arms, thereby realizing the stable opening and closing of the discharge port. During the opening process of this opening mode, the left half plate and the right half plate form a V-shaped structure, and small stones will gradually gather towards the middle of the discharge port, enabling the small stones to accurately fall onto the next conveyor belt and reducing the possibility of small stones splashing outside the equipment.

[0014] The present utility model is further configured as follows: an extension part is arranged above the feed inlet of the box body. A guiding hole is arranged in the extension part. The diameter of the guiding hole gradually decreases from top to bottom and the lower end is consistent with the feed inlet.

[0015] By adopting the above technical solution, the guiding hole of the extension part is added. On the one hand, it increases the feeding area and avoids the possibility of large stones splashing onto the equipment. On the other hand, during the silent feeding process, the upper gate plate will close the feed inlet for several minutes, and the guiding hole can limit the large stones falling in these minutes and wait to enter the transition cavity, improving the practicability. Brief Description of the Drawings

[0016] Figure 1 is a top perspective view of the specific embodiment of the present utility model;

[0017] Figure 2 is a bottom perspective view of the specific embodiment of the present utility model;

[0018] Figure 3 is a cross-sectional view of the specific embodiment of the present utility model. Specific Embodiment

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0021] Such as Figure 1 — Figure 3As shown in the figure, the utility model discloses a silent stone crusher, which includes a box body 1. Inside the box body 1, there is a frustum-shaped crushing cavity 11. Above the box body 1, there is a feed inlet 12 for feeding materials into the crushing cavity 11, and below it, there is a discharge outlet 13 for discharging materials from the crushing cavity 11. Inside the crushing cavity 11, a conical crushing body 2 is coaxially arranged. Below the crushing body 2, there is a driving mechanism 3 for driving the crushing body 2 to rotate and swing left and right. The driving source (motor) inputs the driving force from the driving wheel 31 of the driving mechanism 3 located outside the box body 1 until it is transmitted to the transmission part of the driving mechanism 3 located inside the box body 1 and linked with the crushing body 2. The transmission structure for driving the crushing body 2 to rotate and swing left and right is a structure well-known to those skilled in the art, so it will not be described in detail here, which does not affect the understanding of the structure. Between the feed inlet 12 and the crushing cavity 11 of the box body 1, there is a transition cavity 14. Above the transition cavity 14 of the box body 1, there is an upper gate plate 4 and an upper closing mechanism for driving the upper gate plate 4 to close or open the feed inlet 12. Below the transition cavity 14 of the box body 1, there is a lower gate plate 5 and a lower closing mechanism for driving the lower gate plate 5 to connect or cut off the transition cavity 14 and the crushing cavity 11. Between the crushing cavity 11 and the discharge outlet 13 of the box body 1, there is a discharge cavity 15. Below the discharge outlet 13 of the box body 1, there is a bottom gate plate 6 and a bottom closing mechanism for driving the bottom gate plate 6 to close or open the discharge outlet 13. When the driving mechanism 3 drives the crushing body 2 to rotate and swing left and right, the lower gate plate 5 cuts off the transition cavity 14 and the crushing cavity 11, and the bottom gate plate 6 closes the discharge outlet 13, so that the crushing cavity 11 forms a closed environment. The large stones in the crushing cavity 11 are broken into small stones by the crushing body 2 and then enter the discharge cavity 15, realizing silent crushing. At the same time, the upper gate plate 4 opens the feed inlet 12, and the large stones transported by the conveyor belt in the previous station gradually accumulate in the transition cavity 14; when the large stones in the crushing cavity 11 are basically broken, the upper gate plate 4 first closes the feed inlet 12, and then the lower gate plate 5 connects the transition cavity 14 and the crushing cavity 11. The large stones in the transition cavity 14 fall into the crushing cavity 11. Then the lower gate plate 5 cuts off the transition cavity 14 and the crushing cavity 11, and finally the upper gate plate 4 opens the feed inlet 12, realizing silent feeding; when the small stones in the discharge cavity 15 are nearly full, the driving mechanism 3 stops, the bottom gate plate 6 opens the discharge outlet 13, and the conveyor belt in the next station receives and transports the small stones to the required position. After discharging, the bottom gate plate 6 closes the discharge outlet 13, and the driving mechanism 3 starts, realizing silent discharging. As shown above, silent operation is achieved in all working environments of the crusher to meet the requirements for controlling project noise.

[0022] The upper closing mechanism includes an upper sliding groove 141 and an upper motor 41. The upper sliding groove 141 runs through the box body 1 from left to right. The upper shutter 4 is slidably engaged with the upper sliding groove 141 and partially extends outside the box body 1. The upper motor 41 is fixed outside the box body 1 and is located below the upper shutter 4. The upper motor 41 is drivingly provided with an upper gear 42. An upper tooth groove 43 engaged with the upper gear 42 is arranged along the left and right directions below the upper shutter 4. Through the transmission mode of the upper gear 42 - upper tooth groove 43 by the upper motor 41, the upper shutter 4 is accurately controlled and stably driven to move along the upper sliding groove 141, that is, to ensure the accurate movement of the upper shutter 4.

[0023] The lower closing mechanism includes a lower sliding groove 142 and a lower motor 51. The lower sliding groove 142 runs through the box body 1 from left to right. The lower shutter 5 is slidably engaged with the lower sliding groove 142 and partially extends outside the box body 1. The lower motor 51 is fixed outside the box body 1 and is located above the lower shutter 5. The lower motor 51 is drivingly provided with a lower gear 52. A lower tooth groove 53 engaged with the lower gear 52 is arranged along the left and right directions above the lower shutter 5. Through the transmission mode of the lower gear 52 - lower tooth groove 53 by the lower motor 51, the lower shutter 5 is accurately controlled and stably driven to move along the lower sliding groove 142, that is, to ensure the accurate movement of the lower shutter 5. In addition, the upper motor 41 and the lower motor 51 are concentrated between the upper shutter 4 and the lower shutter 5, making the structure more compact.

[0024] The bottom shutter 6 includes a left half plate 61 and a right half plate 62. The left half plate 61 and the right half plate 62 are respectively located on the left and right sides of the bottom of the box body 1 and are combined to form a circular shape for closing the discharge port 13. The bottom closing mechanism includes a driving platform 16 arranged around the box body 1. Support feet 161 for lifting the driving platform 16 are respectively arranged around the lower part of the driving platform 16. The driving platform 16 is hingedly provided with a left air cylinder 63 above the left half plate 61 and a right air cylinder 64 above the right half plate 62. A left hinge seat 162 hinged to the left half plate 61 is arranged on the left side of the box body 1 below the driving platform 16. A left linkage arm 611 is arranged on the other side of the left half plate 61 relative to the hinge point. The lower part of the left air cylinder 63 is drivingly provided with a left air cylinder shaft 631 hingedly engaged with the left linkage arm 611. A right hinge seat 163 hinged to the right half plate 62 is arranged on the right side of the box body 1 below the driving platform 16. A right linkage arm 621 is arranged on the other side of the right half plate 62 relative to the hinge point. The lower part of the right air cylinder 64 is drivingly provided with a right air cylinder shaft 641 hingedly engaged with the right linkage arm 621. The two air cylinders drive the air cylinder shafts to synchronously extend and retract, and drive the left half plate 61 and the right half plate 62 to swing synchronously through the interlinked linkage arms, thereby realizing the stable opening and closing of the discharge port 13. In the opening process of this opening mode, the left half plate 61 and the right half plate 62 are in a V-shaped structure, and small stones will gradually gather towards the middle of the discharge port 13, so that the small stones accurately fall on the conveyor belt in the next position, reducing the possibility of small stones splashing outside the equipment.

[0025] Above the feeding port 12, the box body 1 is provided with an extension part 17. The extension part 17 is provided with a guiding hole 171. The diameter of the guiding hole 171 gradually decreases from top to bottom and the lower end is consistent with the feeding port 12. By adding the guiding hole 171 of the extension part, on the one hand, the feeding area is increased to avoid the possibility of large stones splashing onto the equipment; on the other hand, during the silent feeding process, the upper shutter 4 will close the feeding port 12 for several minutes. The guiding hole 171 can limit the large stones falling in these minutes and wait to enter the transition cavity 14, improving the practicability.

Claims

1. A silent stone crusher, comprising a box body, wherein a frustum-shaped crushing cavity is arranged inside the box body, a feed inlet for feeding materials into the crushing cavity is arranged above the box body, a discharge outlet for discharging materials from the crushing cavity is arranged below, a conical crushing body is coaxially arranged inside the crushing cavity, and a driving mechanism for driving the crushing body to rotate and swing left and right is arranged below the crushing body, and it is characterized in that: A transition chamber is provided between the feed inlet and the crushing chamber of the described box body. An upper shutter and an upper closing mechanism for driving the upper shutter to close or open the feed inlet are provided above the transition chamber of the box body. A lower shutter and a lower closing mechanism for driving the lower shutter to connect or cut off the transition chamber from the crushing chamber are provided below the transition chamber of the box body. An outlet chamber is provided between the crushing chamber and the discharge outlet of the box body. A bottom shutter and a bottom closing mechanism for driving the bottom shutter to close or open the discharge outlet are provided below the discharge outlet of the box body.

2. The silent pebble crusher according to claim 1, characterized in that: The upper closing mechanism includes an upper chute and an upper motor. The upper chute is arranged through the box body along the left and right directions. The upper shutter is slidably matched with the upper chute and partially extends outside the box body. The upper motor is fixed outside the box body and is located below the upper shutter. The upper motor is driven to be provided with an upper gear. An upper tooth groove meshing with the upper gear is arranged along the left and right directions below the upper shutter.

3. The silent stone crusher according to claim 2, characterized in that: The lower closing mechanism includes a lower chute and a lower motor. The lower chute is arranged through the box body along the left and right directions. The lower shutter is slidably matched with the lower chute and partially extends outside the box body. The lower motor is fixed outside the box body and is located above the lower shutter. The lower motor is driven to be provided with a lower gear. A lower tooth groove meshing with the lower gear is arranged along the left and right directions above the lower shutter.

4. The silent stone crusher according to claim 1, characterized in that: The bottom shutter includes a left half plate and a right half plate. The left half plate and the right half plate are respectively located on the left and right sides of the bottom of the box body and are combined to form a circular shape for closing the discharge outlet. The bottom closing mechanism includes a driving platform arranged around the box body. Support feet for lifting the driving platform are respectively arranged around the lower part of the driving platform. The driving platform is hinged with a left cylinder above the left half plate and a right cylinder above the right half plate. A left hinge seat hinged with the left half plate is arranged on the left side of the box body below the driving platform. A left linkage arm is arranged on the other side of the left half plate relative to the hinge point. The lower part of the left cylinder is driven to be provided with a left cylinder shaft hinged and matched with the left linkage arm. A right hinge seat hinged with the right half plate is arranged on the right side of the box body below the driving platform. A right linkage arm is arranged on the other side of the right half plate relative to the hinge point. The lower part of the right cylinder is driven to be provided with a right cylinder shaft hinged and matched with the right linkage arm.

5. The silent stone crusher according to claim 1, wherein: An extension part is provided above the feed inlet of the box body. The extension part is provided with a guiding hole. The diameter of the guiding hole gradually decreases from top to bottom and the lower end is consistent with the feed inlet.

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