A material blocking device for underground vibrating ore discharge outlet

Abstract

This invention relates to a material blocking device for the discharge port of an underground vibratory ore feeder, comprising a discharge channel with a sloping bottom and a material blocking structure installed on the front end of the discharge channel. The material blocking structure includes a material blocking plate with a tilting shaft connected to its top. The two ends of the tilting shaft are rotatably mounted on two supporting vertical beams via bearings. The two supporting vertical beams are respectively connected to two outer sides at the front end of the discharge channel. The material blocking plate is located between the two supporting vertical beams and has a gap between it and the two supporting vertical beams. One end of the tilting shaft is equipped with a power mechanism to drive its rotation. This device, by setting the material blocking plate as an opening and closing structure that rotates around the tilting shaft, and in conjunction with the transmission design of a hydraulic cylinder and an eccentric rotating wheel, uses stable hydraulic power to automatically drive the material blocking plate to smoothly switch between vertical blocking and outward tilting opening. This completely replaces the traditional manual lifting and lowering operation of the material blocking plate, eliminates the safety hazards of manual operation, and improves the operational continuity and overall production efficiency of the underground vibratory ore feeder.

Description

Technical Field

[0001] This invention relates to the field of vibratory ore feeding machine technology, specifically to a high-efficiency ashing and roasting device for carrying gold and silver crushed charcoal. Background Technology

[0002] It is generally installed at the discharge end of the underground mine tunnel to receive the ore dropped by the mining equipment and to output the ore evenly and stably to the subsequent transportation equipment through vibration.

[0003] Currently, most traditional underground vibratory ore feeders use fixed baffle structures at the discharge port. The baffle position is mostly manually adjusted by prying it near the discharge port. The underground working environment is complex, the risk of ore falling and impacting is high, the safety hazards of manual adjustment are significant, and the ore feeding operation needs to be suspended during the adjustment process, which affects the overall efficiency of the mining operation. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a material blocking device at the discharge port of an underground vibratory ore feeder.

[0005] The specific technical solution is as follows: A material blocking device for the discharge port of an underground vibratory ore feeder includes a discharge channel and a material blocking structure installed on the front end of the discharge channel. The bottom of the discharge channel is a sloping surface. The material blocking structure includes a material blocking plate, and a tilting shaft is connected to the top of the material blocking plate. The two ends of the tilting shaft are rotatably mounted on two supporting vertical beams via two bearings. The two supporting vertical beams are respectively connected to two outer sides at the front end of the discharge channel. The material blocking plate is located between the two supporting vertical beams and has a gap with the two supporting vertical beams. A rotating wheel is connected to the outer surface of one end of the tilting shaft. A hydraulic cylinder is installed on the side of the discharge channel adjacent to the rotating wheel. The output end of the hydraulic cylinder is rotatably connected to the outer side of the rotating wheel via a second pin. The tail end of the hydraulic cylinder is rotatably connected to two ear plates on the inclined surface of a triangular seat via a first pin. The triangular seat is fixed to the lower rear part of the side of the discharge channel. The hydraulic cylinder is tilted.

[0006] Furthermore, preferably, the position of the second pin on the rotating wheel is offset from the center of the rotating wheel.

[0007] Furthermore, preferably, two support beams are respectively provided at intervals on the two outer sides of the discharge channel, and the front end face of each support beam is connected to the inner side of the support vertical beam.

[0008] Furthermore, preferably, the top of the rear end of the support beam at the bottom position on the side adjacent to the rotating wheel is connected to the bottom of the triangular seat.

[0009] Furthermore, preferably, the front end face of the baffle plate is provided with a number of reinforcing ribs at vertical intervals, and a number of connecting plates are connected at horizontal intervals between adjacent reinforcing ribs, so that the reinforcing ribs and connecting plates together form a mesh reinforcement structure.

[0010] Furthermore, preferably, the top of the reinforcing rib is designed as an arc-shaped surface that fits the flipping shaft.

[0011] Furthermore, preferably, a crash plate is provided on the side of the baffle plate facing the inside of the discharge channel. Several rectangularly distributed sliding rods are connected to the front end of the crash plate. The other end of the sliding rod slides through the baffle plate and is threaded with a limit nut. A buffer spring is sleeved on the outer surface of the sliding rod located between the crash plate and the baffle plate.

[0012] The beneficial effects of this invention are as follows: By setting the baffle plate as an opening and closing structure that rotates around a flipping axis, and cooperating with the transmission design of a hydraulic cylinder and an eccentric rotating wheel, the invention automatically drives the baffle plate to smoothly switch between a vertical blocking posture and an outward flipping opening posture with stable hydraulic power. The linear reciprocating motion of the hydraulic cylinder is converted into the rotational motion of the rotating wheel through a pin off-center. This not only achieves a large-angle flipping opening of the baffle plate with a small stroke, ensuring a full discharge opening, but also, during the retraction process, the hydraulic cylinder causes the baffle plate to fall back in a controlled manner, and in the reset state, it forms a self-locking torque on the rotating wheel, so that the baffle plate can remain tightly closed even without additional power, effectively preventing the ore from accidentally rolling down or being pushed open by impact. This automatic flipping mechanism completely replaces the traditional manual lifting and lowering operation of the baffle plate, eliminating the safety hazards of manual operation by operators near the chute opening. At the same time, it makes the opening and closing of the baffle plate and the ore discharge process precisely synchronized, without the need to stop the operation for manual adjustment, significantly improving the operational continuity and overall production efficiency of the underground vibratory ore discharge machine.

[0013] Furthermore, the reinforcing ribs and connecting plates on the front end of the baffle plate form a mesh-like reinforcement structure, which effectively disperses the impact force generated when the ore falls and improves the overall structural strength of the baffle plate. The anti-collision plate on the rear end of the baffle plate, through the cooperation of sliding rods and buffer springs, effectively mitigates the instantaneous impact force of the ore, preventing the impact force from being directly and rigidly transmitted to core rotating components such as the baffle plate, tilting shaft, and supporting vertical beams, further improving the reliability and durability of the device. Overall, the device has a compact structure, strong load-bearing capacity, and is adaptable to complex underground working conditions. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle; Figure 3 This is a partially enlarged structural diagram of the baffle structure in this invention; Figure 4 for Figure 3 A magnified view of the structure at point A in the middle; In the diagram: 1-Discharge channel; 2-Baffle structure; 201-Connecting plate; 202-Reinforcing rib plate; 203-Bearing; 21-Tilting shaft; 22-Baffle plate; 23-Rotating wheel; 24-First pin; 25-Second pin; 26-Supporting vertical beam; 27-Hydraulic cylinder; 28-Supporting crossbeam; 29-Ear plate; 30-Triangular seat; 31-Anti-collision plate; 32-Buffer spring; 33-Slide rod; 34-Limit nut. Detailed Implementation

[0015] To make the technical problems and solutions solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0016] In the description of this invention, it should be understood that the terms "vertical," "horizontal," "up," "down," "front," "back," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0017] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" 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 invention based on the specific circumstances.

[0018] like Figure 1-2 As shown, this invention discloses a material blocking device at the discharge port of an underground vibrating ore feeder, mainly comprising two parts: a discharge channel 1 and a material blocking structure 2 installed on the front end of the discharge channel 1. The discharge channel 1 is located at the discharge end of the underground mine tunnel, used to receive the ore falling from the mining equipment and to uniformly and stably output the ore to subsequent transport equipment through vibration. The bottom of the discharge channel 1 is sloped to facilitate smooth discharge of materials under gravity and vibration. The material blocking structure 2, through the combined action of hydraulic drive and mechanical transmission, achieves the blocking and opening of the front end of the discharge channel 1, meeting the electric control requirements of the underground vibrating ore feeder for the discharge process.

[0019] The baffle structure 2 includes a baffle plate 22 that can block and open the front end of the discharge channel 1. The top of the baffle plate 22 is connected to a flip shaft 21. The two ends of the flip shaft 21 are rotatably mounted on two support beams 26 through two bearings 203. The two support beams 26 are respectively connected to the two outer sides of the front end of the discharge channel 1. The baffle plate 22 is located between the two support beams 26 and there is a gap between it and the support beams 26 on both sides, so as to leave room for the opening and closing of the baffle plate 22. To achieve automatic flipping of the baffle plate 22, a rotating wheel 23 is connected to the outer surface of one end of the flipping shaft 21. A hydraulic cylinder 27 is installed on the side of the discharge channel 1 adjacent to the rotating wheel 23. The output end of the hydraulic cylinder 27 is rotatably connected to the outer side of the rotating wheel 23 via a second pin 25. The tail end of the hydraulic cylinder 27 is rotatably connected to two ear plates 29 on the inclined surface of the triangular seat 30 via a first pin 24. The triangular seat 30 is fixed to the lower rear part of the side of the discharge channel 1, and the hydraulic cylinder 27 is inclined. When the hydraulic cylinder 27 extends, it drives the rotating wheel 23 to rotate clockwise, and the flipping shaft 21 rotates synchronously, thereby causing the baffle plate 22 to flip clockwise and open the front end of the discharge channel 1. Conversely, when the hydraulic cylinder 27 retracts, it drives the rotating wheel 23 to rotate counterclockwise, and the flipping shaft 21 rotates synchronously, thereby causing the baffle plate 22 to flip counterclockwise and reset. The baffle plate 22 can be controlled to fall back and tightly seal the front end of the discharge channel 1.

[0020] It is important to note that the position of the pin 25 on the rotating wheel 23 must be offset from the center of the rotating wheel 23. This eccentric transmission design allows the extension and retraction of the output end of the hydraulic cylinder 27 to be converted into the rotational motion of the rotating wheel 23 around the center. The hydraulic cylinder 27 can complete a larger angle of rotation with a smaller stroke, ensuring a normal discharge opening angle. At the same time, when the hydraulic cylinder 27 retracts, it can generate a self-locking torque on the rotating wheel 23, giving the hydraulic cylinder 27 better self-locking performance in the blocking state, preventing the baffle plate 22 from being pushed open by the impact force of the ore after reset, and improving the stability of the baffle plate 22 when closed.

[0021] It should be further noted that in this embodiment, a hydraulic cylinder 27 is used as the driving component. Its linear reciprocating motion at the output end drives the rotating wheel 23 and the tilting shaft 21 to rotate, thereby achieving the tilting and opening / closing of the baffle plate 22. However, those skilled in the art should understand that other mechanical drive structures capable of achieving linear reciprocating motion output and converting it into rotational motion through a linkage structure can be used to replace the hydraulic cylinder 27, such as electric push rods, cylinders, and combinations of motors and linkages. These drive structures, similar in their cooperation with the rotating wheel 23, pin, and hydraulic cylinder 27, can all achieve automatic tilting of the baffle plate 22. Therefore, any technical solution that uses the same or equivalent driving and transmission methods as the structure described above to achieve baffle plate tilting should fall within the protection scope of this invention.

[0022] As a preferred embodiment, such as Figure 1 As shown, two support beams 28 are respectively spaced apart on the two outer sides of the discharge channel 1. The front end of each support beam 28 is connected to the inner side of the support vertical beam 26 to form a stable support frame. In addition, the top of the rear end of the support beam 28 at the bottom position adjacent to the rotating wheel 23 is connected to the bottom of the triangular seat 30, which can further support the triangular seat 30 and enhance its stability.

[0023] As another preferred embodiment, such as Figure 1 As shown, the front face of the baffle plate 22 is vertically spaced with several reinforcing ribs 202, and adjacent reinforcing ribs 202 are horizontally connected with several connecting plates 201. The reinforcing ribs 202 and the connecting plates 201 together form a stable mesh reinforcement structure. This structure can effectively disperse the impact force received by the baffle plate 22 from the outside, and improve the overall structural strength and deformation resistance of the baffle plate 22.

[0024] Furthermore, the top of the reinforcing rib plate 202 is designed to fit the arc-shaped surface of the flipping shaft 21. This arc-shaped surface can increase the contact area between the reinforcing rib plate 202 and the flipping shaft 21, making the connection more robust and stable. At the same time, it can reduce stress concentration and prevent the connection from cracking and deforming due to excessive local stress when the flipping shaft 21 rotates and drives the baffle plate 22 to operate. This further improves the overall stability of the baffle structure 2.

[0025] As another preferred embodiment, such as Figure 3-4 As shown, a crash barrier 31 is provided on the side of the baffle plate 22 facing the inside of the discharge channel 1. Several rectangularly distributed sliding rods 33 are connected to the front end of the crash barrier 31. The other end of the sliding rod 33 slides through the baffle plate 22 and is threadedly connected to a limiting nut 34. A buffer spring 32 is sleeved on the outer surface of the sliding rod 33 located between the crash barrier 31 and the baffle plate 22. With this structure, when the ore falls rapidly from the discharge port and impacts the baffle plate 22, the impact force will first act on the crash barrier 31. After being subjected to force, the crash barrier 31 will slide along the sliding rod 33 towards the baffle plate 22, compressing the buffer spring 32. After being compressed, the buffer spring 32 will absorb most of the impact energy, converting the instantaneous impact force from the ore into the elastic potential energy of the buffer spring 32. This avoids the impact force being directly and rigidly transmitted to core components such as the baffle plate 22, the tilting shaft 21, and the supporting vertical beam 26, significantly reducing the damage to the overall structure of the device and improving the reliability and durability of the device.

[0026] Working principle: When ore discharge is required, the output end of hydraulic cylinder 27 extends, and its output end drives rotating wheel 23 to rotate clockwise via second pin 25. Tilting shaft 21 rotates synchronously, causing baffle plate 22 to flip outward around tilting shaft 21. As the output end of hydraulic cylinder 27 continues to extend, baffle plate 22 gradually opens, exposing the front opening of discharge channel 1. Material is discharged from the discharge port along the bottom slope under gravity and vibration. After ore discharge is completed, the output end of hydraulic cylinder 27 retracts, causing rotating wheel 23 and tilting shaft 21 to rotate counterclockwise synchronously. This causes baffle plate 22 to flip inward around the axis of tilting shaft, allowing it to fall back in a controlled manner until it resets and seals the front opening of discharge channel 1. At this point, hydraulic cylinder 27 forms a self-locking torque on rotating wheel 23, ensuring baffle plate 22 remains tightly closed even without additional power, preventing it from being pushed open by ore impact and entering the preparation state for the next ore receiving.

[0027] Of course, in actual use, the above-mentioned device can also be used in conjunction with an electrical control system. Limit switches can be installed on the baffle plate 22 or the hydraulic cylinder 27, and an electromagnetic directional valve can be installed in the oil circuit of the hydraulic cylinder 27. These components are then connected to a control box. The control system receives local button or remote signal commands from the operator and controls the oil flow direction through the electromagnetic directional valve, thereby precisely driving the hydraulic cylinder 27 to move. In particular, safety interlocking control can be implemented: only when the limit switch detects that the baffle plate 22 is fully open and sends a "baffle fully open" position signal can the control system release the interlocking of the vibratory feeder motor starting circuit, allowing the vibratory motor to start for ore feeding, thus preventing blockage or splashing caused by ore feeding when the baffle is not fully open. Interlocking shut-off control can also be implemented: after the vibratory motor stops, the control system can automatically or manually issue a "close baffle" command, controlling the electromagnetic directional valve to switch direction, causing the hydraulic cylinder 27 to push the baffle plate 22 to reset and close, achieving timely sealing after the process ends and preventing residual ore from accidentally rolling down. Of course, these interlocking control methods are existing control technologies and will not be elaborated upon further here.

[0028] The present invention has been described in detail above through specific and preferred embodiments. However, those skilled in the art should understand that the present invention is not limited to the embodiments described above. Any modifications, equivalent substitutions, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A material blocking device at the discharge port of an underground vibrating ore feeder, characterized in that, The system includes a discharge channel (1) and a baffle structure (2) installed on the front end of the discharge channel (1). The bottom of the discharge channel (1) is a sloping surface. The baffle structure (2) includes a baffle plate (22). The top of the baffle plate (22) is connected to a rotating shaft (21). The two ends of the rotating shaft (21) are rotatably mounted on two supporting vertical beams (26) through two bearings (203). The two supporting vertical beams (26) are respectively connected to the two outer sides of the front end of the discharge channel (1). The baffle plate (22) is located between the two supporting vertical beams (26) and connected to the two supporting beams on both sides. A gap is left between the vertical beams (26); a rotating wheel (23) is connected to the outer surface of one end of the flipping shaft (21), and a hydraulic cylinder (27) is installed on the side of the discharge channel (1) adjacent to the rotating wheel (23). The output end of the hydraulic cylinder (27) is rotatably connected to the outer side of the rotating wheel (23) through the second pin (25), and the tail end of the hydraulic cylinder (27) is rotatably connected to the two ear plates (29) on the inclined surface of the triangular seat (30) through the first pin (24). The triangular seat (30) is fixed on the lower rear part of the side of the discharge channel (1), and the hydraulic cylinder (27) is set at an angle.

2. The material blocking device at the discharge port of an underground vibratory ore feeder according to claim 1, characterized in that: The position of the second pin (25) on the rotating wheel (23) is offset from the center of the rotating wheel (23).

3. A material blocking device at the discharge port of an underground vibratory ore feeder according to claim 1 or 2, characterized in that: The two outer sides of the discharge channel (1) are also provided with two support beams (28) at intervals, and the front end of each support beam (28) is connected to the inner side of the support vertical beam (26).

4. The material blocking device at the discharge port of an underground vibratory ore feeder according to claim 3, characterized in that: The top of the rear end of the support beam (28) at the bottom position adjacent to the rotating wheel (23) is connected to the bottom of the triangular seat (30).

5. A material blocking device at the discharge port of an underground vibratory ore feeder according to claim 1 or 2, characterized in that: The front end face of the baffle plate (22) is provided with a number of reinforcing ribs (202) at vertical intervals, and a number of connecting plates (201) are connected at horizontal intervals between adjacent reinforcing ribs (202). The reinforcing ribs (202) and the connecting plates (201) together form a mesh reinforcement structure.

6. The material blocking device at the discharge port of an underground vibratory ore feeder according to claim 5, characterized in that: The top of the reinforcing rib (202) is designed to fit the arc-shaped surface of the flipping shaft (21).

7. A material blocking device at the discharge port of an underground vibrating ore feeder according to claim 1 or 2, characterized in that: The baffle plate (22) is provided with a collision protection plate (31) on the side facing the inside of the discharge channel (1). The front end of the collision protection plate (31) is connected to several rectangular sliding rods (33). The other end of the sliding rod (33) slides through the baffle plate (22) and is threaded with a limit nut (34). A buffer spring (32) is sleeved on the outer surface of the sliding rod (33) located between the collision protection plate (31) and the baffle plate (22).

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