Granite rock conveying apparatus

Abstract

The present application relates to the technical field of stone conveying, in particular to a granite crushed stone conveying device, comprising a support, a discharging box and a feeding mechanism. In the present application, multiple buffer plates form multiple levels of buffer layers from top to bottom. Each buffer layer gradually reduces the height difference between the crushed stone and the conveying belt and gradually consumes the impact force carried by the crushed stone, ensuring that the impact force on the crushed stone can be completely absorbed by the buffer. In addition, the same speed belt allows the crushed stone to be discharged onto the conveying belt at the same speed as the conveying belt. In summary, the buffer effect on the crushed stone is improved, and the impact of the crushed stone on the service life of the conveying belt is avoided. In addition, the swing action of the swing plate limits the front and rear area range of the crushed stone accumulation, avoiding the problem of the crushed stone falling off the conveying belt when discharging onto the conveying belt. At the same time, the crushed stone is discharged onto the conveying belt in a pile shape, the crushed stone covers the fine powder and dust, and the dust is suppressed from escaping through the dust suppression curtain. In summary, the problem of dust escaping affecting the working environment during the conveying of the crushed stone is avoided.

Description

Technical Field

[0001] This invention relates to the field of stone conveying technology, specifically to a granite crushing stone conveying device. Background Technology

[0002] Granite crushed stone is a stone product made from natural granite ore through blasting, mechanical crushing, and screening, resulting in particles of different sizes. Due to its high strength and hardness, wear resistance, durability, and good bonding properties, it is commonly used as a building and engineering material.

[0003] After the granite ore body is mined, it undergoes primary crushing (mainly by jaw crusher), intermediate crushing (mainly by cone crusher and vibrating screen), fine crushing (cone crusher or vertical shaft impact crusher), and finally screening. In the above different operations, conveying equipment is usually used to connect and transport the crushed stone. Currently, existing ore conveyors are usually used to transport the crushed stone.

[0004] Among them, Chinese invention patent with announcement number CN114348576B discloses a crushed stone conveying device for mining engineering, including a conveying mechanism, a frame, a buffer spring and a receiving plate. The impact force is buffered by the extension and contraction of the buffer spring. The crushed stone located on the receiving plate can be discharged through the opening of the fixed frame, so that it falls onto the conveyor belt and is conveyed away, avoiding direct falling onto the conveyor belt and damaging it.

[0005] In traditional conveying operations, crushed stone is directly conveyed onto the conveyor belt of an ore conveyor. Because the crushed stone is conveyed to the conveyor equipment after undergoing crushing or other conveying processes, the crushed stone itself has a strong impact force when it comes into contact with the conveyor belt due to its speed and the height difference between the crushed stone and the conveyor equipment. Therefore, the direct impact of the crushed stone on the conveyor belt during the transmission and conveying process can easily cause damage to the conveyor belt and affect its service life.

[0006] While the aforementioned patents utilize a single buffer spring and a receiving plate to mitigate the impact of crushed stone to some extent, a single buffer is insufficient to fully adapt to the strong impact of the crushed stone. The buffering effect is limited, and the crushed stone may still have a certain impact effect after contacting the receiving plate, causing the crushed stone to splash and damage the conveyor belt.

[0007] Secondly, in the traditional conveying process and the conveying process disclosed in the patent, the crushed stone is randomly discharged onto the conveyor belt. The above operation method is prone to causing the crushed stone to deviate from the set support position, affecting the normal operation of the conveyor belt. At the same time, the dust generated during the conveying process is not controlled, which pollutes the working environment. Summary of the Invention

[0008] Therefore, it is necessary to provide a granite crushing and conveying device to solve the problems of the prior art.

[0009] This application provides a granite crushing and conveying device for use with a mining conveyor, comprising: a support frame, the support frame being disposed on the left side of the conveyor belt in the mining conveyor, a feeding box being disposed on the support frame, an upper material trough being provided on the upper end face of the feeding box, and a lower material trough being provided on the right end face of the feeding box.

[0010] The feeding box is equipped with a feeding mechanism, which includes a buffer component and a deceleration component distributed from top to bottom. The buffer component includes multiple buffer plates distributed from top to bottom, which are used to offset the impact force of the crushed stone during feeding.

[0011] The feeding mechanism also includes a sorting component disposed between the buffer component and the slowing component. The sorting component includes two symmetrically distributed swing plates, which control the front-to-back range and shape of the crushed stone.

[0012] The deceleration component includes a belt rotating at the same speed as the conveyor belt, which allows the crushed stone to enter the conveyor belt in a relatively stationary state relative to the conveyor belt.

[0013] The feeding box is equipped with a dust suppression component to reduce dust during the feeding process.

[0014] The shock-absorbing components consist of multiple buffer plates forming a multi-level buffer layer from top to bottom, which gradually consumes the impact force of the crushed stone. Two swing plates control the front and back range of the crushed stone accumulation and make its shape into a pile. Finally, the crushed stone enters the conveyor belt at the same speed as the conveyor belt.

[0015] According to an advantageous embodiment, the buffer plate is hinged to the side of the feeding box, and the corresponding hinged sides of all the buffer plates are staggered from top to bottom, with the uppermost buffer plate hinged to the right end face inside the feeding box.

[0016] The buffer assembly also includes a fixing frame. A fixing frame corresponding to and located below the corresponding buffer plate is fixedly installed inside the feeding box. Multiple springs arranged in a matrix are fixedly installed between the fixing frame and the corresponding buffer plate.

[0017] According to an advantageous embodiment, a support column with an axis extending forward and backward is fixedly provided at one end of the buffer plate away from its corresponding hinge point. Both the front and rear end faces of the feeding box are provided with limiting grooves that correspond to the buffer plate and are fan-shaped. The axis of the limiting grooves is collinear with the rotation axis of the corresponding buffer plate. The front and rear ends of the support column are respectively located in the corresponding limiting grooves.

[0018] According to an advantageous embodiment, the upper chute is located on the upper right side of the feed box, and the lower part of the feed box consists of three inclined sections that gradually slope from left to right, with the lower chute aligned with the rightmost inclined section at the lower end of the feed box.

[0019] According to an advantageous embodiment, the sorting assembly further includes rotating piles, and two symmetrical rotating piles are rotatably arranged on the upper end face of the rightmost inclined section below the feeding box. A swing plate is fixedly sleeved on the rotating piles, and the swing plate consists of an inclined section and a transverse section from left to right, with the inclined section tilting forward from left to right.

[0020] When the transverse sections of the two oscillating plates are parallel, the spacing between them is the same as the width of the horizontal section of the conveyor belt.

[0021] According to an advantageous embodiment, a drive column is slidably passed through both the front and rear end faces of the feeding box, and the drive column is rotatably connected to the inclined section of the corresponding swing plate.

[0022] According to an advantageous embodiment, two symmetrical anti-blocking blocks are fixedly installed on the middle inclined section of the lower part of the feeding box, with the right ends of the two anti-blocking blocks located between two rotating piles.

[0023] During the process of crushed stone falling from the buffer assembly to the lower part of the feeding box, the movement of crushed stone is guided by the anti-blocking block to avoid the crushed stone impacting the rotating pile during the feeding process, which could cause damage to the rotating pile and the swing plate.

[0024] According to an advantageous embodiment, the deceleration assembly further includes mounting brackets, with two symmetrical mounting brackets fixedly disposed on the inner wall of the lower trough, and the right end of the inclined section of the swing plate located between the two mounting brackets.

[0025] Two rotating shafts are provided between the two mounting brackets, one on each side. A belt with the same speed is installed on the two rotating shafts, and the inclination angle of the belt with the same speed is the same as the inclination section on the right side of the feed box.

[0026] According to an advantageous embodiment, a drive shaft is rotatably provided between the two mounting brackets, and the drive shaft is driven by a drive belt between itself and the left rotating shaft, as well as between itself and the corresponding left conveyor roller in the conveying device.

[0027] According to an advantageous embodiment, the dust suppression assembly includes a dust suppression curtain, with the lower end face of the fixing frame and the upper inner wall of the lower material trough both fixedly provided with dust suppression curtains.

[0028] In summary, the present invention has the following beneficial effects: In the present invention, multiple buffer plates form a multi-level buffer layer from top to bottom. As the height difference between the crushed stone and the conveyor belt gradually decreases, each buffer layer gradually consumes the impact force carried by the crushed stone, ensuring that the impact force on the crushed stone can be completely buffered and absorbed. Secondly, the crushed stone is fed onto the conveyor belt at the same speed as the conveyor belt by the same speed. In summary, the buffering effect on the crushed stone is improved, and the impact of the crushed stone on the conveyor belt is avoided, which affects the service life of the conveyor belt.

[0029] Secondly, the swinging motion of the oscillating plate limits the area of ​​the crushed stone accumulation, preventing the crushed stone from falling off the conveyor belt when it is fed onto the belt. At the same time, the crushed stone is fed onto the conveyor belt in a pile, covering fine powder and dust. In addition, the dust suppression curtain inhibits the escape of dust. In summary, the problem of dust escaping and affecting the working environment during the crushed stone transportation process is avoided. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] Figure 1 A three-dimensional structural schematic diagram of a granite crushing stone conveying device according to an embodiment of the present invention is shown.

[0032] Figure 2 A front view of the mounting bracket, the same-speed belt, and the rotating shaft provided according to an embodiment of the present invention is shown.

[0033] Figure 3 A partial cross-sectional perspective view of the three-dimensional structure between the feed box, the buffer plate, and the swing plate provided according to an embodiment of the present invention is shown.

[0034] Figure 4 A partial cross-sectional front view of the feed box, buffer plate, and swing plate provided according to an embodiment of the present invention is shown.

[0035] Figure 5 A partial cross-sectional perspective view of the feed box, swing plate, and drive column provided according to an embodiment of the present invention is shown.

[0036] Figure 6 A partial cross-sectional perspective view of the three-dimensional structure between the feed box, the same-speed belt, and the mounting frame provided according to an embodiment of the present invention is shown.

[0037] The above-mentioned attached drawings include the following reference numerals: 1. Support; 2. Feed box; 3a. Upper feed trough; 3b. Lower feed trough; 40. Buffer assembly; 400. Buffer plate; 401. Fixing frame; 402. Spring; 403. Support column; 404. Limiting groove; 41. Deceleration assembly; 410. Same speed belt; 411. Mounting frame; 412. Rotating shaft; 413. Drive shaft; 414. Drive belt; 42. Organizing assembly; 420. Swing plate; 421. Rotating pile; 422. Drive column; 423. Anti-blocking block; 50. Dust suppression curtain; 6. Mining conveyor. Detailed Implementation

[0038] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] like Figure 1 , Figure 3 and Figure 4 As shown, a granite crushing and conveying device, used in conjunction with a mining conveyor 6, includes: a support 1, which is located on the left side of the conveyor belt in the mining conveyor 6, a feeding box 2 is provided on the support 1, an upper material trough 3a is provided on the upper end face of the feeding box 2, and a lower material trough 3b is provided on the right end face of the feeding box 2.

[0040] The feeding box 2 is equipped with a feeding mechanism, which includes a buffer component 40 and a deceleration component 41 distributed from top to bottom. The buffer component 40 includes multiple buffer plates 400 distributed from top to bottom, which offset the impact force of the crushed stone during feeding.

[0041] like Figure 1 and Figure 5 As shown, the feeding mechanism also includes a sorting component 42 disposed between the buffer component 40 and the slowing component 41. The sorting component 42 includes two symmetrically distributed swing plates 420. The front-to-back range and shape of the crushed stone are controlled by the back-to-back swing of the two swing plates 420.

[0042] like Figure 1 , Figure 2 and Figure 6 As shown, the slowing component 41 includes a belt 410 with the same rotational speed as the conveyor belt, which allows the crushed stone to enter the conveyor belt in a relatively stationary state relative to the conveyor belt.

[0043] like Figure 1 and Figure 3 As shown, the feeding box 2 is equipped with a dust suppression component to reduce dust during the feeding process.

[0044] The crushed stone enters the feed box 2 through the upper feed chute 3a. Multiple buffer plates 400 in the buffer assembly 40 form a multi-level buffer layer from top to bottom, which gradually consumes the impact force of the crushed stone. Then, the two swing plates 420 control the front and back range of the crushed stone accumulation and make its shape into a pile. Finally, the crushed stone enters the conveyor belt through the same speed belt 410 to reach the same speed as the conveyor belt.

[0045] During operation, crushed stone transported by conveying equipment in other lines or crushed stone processed by the crusher is fed into the feed box 2 through the upper feed chute 3a. At this time, the crushed stone has a high height difference with the conveyor belt in the mining conveyor 6 and has its own speed. Therefore, the crushed stone enters the feed box 2 under impact. The crushed stone first contacts the buffer component 40, and multiple buffer plates 400 form a multi-level buffer layer from top to bottom. As the height difference between the crushed stone and the conveyor belt gradually decreases, each buffer layer consumes the impact force carried by the crushed stone, avoiding the problem of the conveyor belt being damaged by the impact of the crushed stone being directly fed onto the conveyor belt for a long time. Then, the crushed stone is fed to the bottom of the feed box 2 under low impact and gradually enters the deceleration component 41. The same speed belt 410 makes the feeding speed of the crushed stone gradually the same as the conveyor belt. Then, when the crushed stone is fed onto the conveyor belt, the friction between the crushed stone and the conveyor belt is reduced in the above way (the two are relatively stationary). In summary, the above process reduces the wear of the conveyor belt caused by the impact of the crushed stone itself and extends the service life of the conveyor belt.

[0046] Secondly, in the above process, by swinging back and forth the two swing plates 420 in the sorting component 42, the low-impact crushed stone is discharged onto the conveyor belt in a pile, while limiting the front and rear area of ​​the crushed stone accumulation, avoiding the problem of crushed stone falling off the conveyor belt when it is discharged onto the conveyor belt. The swinging action of the swing plates 420 avoids the problem of crushed stone getting stuck and forming a blockage, ensuring smooth discharge.

[0047] In addition, during the above process, dust suppression components are used to suppress the overflow of dust from the crushed stone during the feeding process, effectively protecting the working environment.

[0048] like Figure 3 and Figure 4 As shown, the buffer plate 400 is hinged to the side of the feeding box 2. The corresponding hinged sides of all the buffer plates 400 in the feeding box 2 are staggered from top to bottom. The uppermost buffer plate 400 is hinged to the right end face inside the feeding box 2.

[0049] The buffer assembly 40 also includes a fixing frame 401. The fixing frame 401, which corresponds to and is located below the corresponding buffer plate 400, is fixedly installed in the feeding box 2. A plurality of springs 402 arranged in a matrix are fixedly installed between the fixing frame 401 and the corresponding buffer plate 400.

[0050] like Figure 3 and Figure 4 As shown, a support column 403 with an axis extending forward and backward is fixedly provided at one end of the buffer plate 400 away from its corresponding hinge. Both the front and rear end faces of the feeding box 2 are provided with limiting grooves 404 that correspond to the buffer plate 400 and are fan-shaped. The axis of the limiting grooves 404 is collinear with the rotation axis of the corresponding buffer plate 400. The front and rear ends of the support column 403 are respectively located in the corresponding limiting grooves 404.

[0051] During operation, crushed stone continuously enters the feed box 2 through the upper feed chute 3a. First, the crushed stone falls to the right side of the uppermost buffer plate 400. During its descent, the impact force of the crushed stone causes the uppermost buffer plate 400 to tend to move downwards, thus compressing the spring 402. Therefore, through this elastic transformation, some of the impact force of the crushed stone is absorbed. After this single buffering, the crushed stone gradually slides down along the length of the uppermost buffer plate 400, sliding onto the second buffer plate 400 from top to bottom, and repeating the above process. Thus, through all the buffer plates 400, a multi-level buffer layer is formed from top to bottom, gradually absorbing the impact force carried by the crushed stone itself. Compared to the existing single-buffering method, the multi-level, multi-buffering method in this invention avoids the problem of excessive impact from a single event. The issue of reduced buffering performance or inability to buffer again, and the need for additional explanation, is that during the aforementioned buffering process, the buffer plate 400 drives the support column 403 on it to rotate synchronously. Through the cooperation between the limiting groove 404 and the support column 403, the swing range of the support column 403 and the buffer plate 400 is limited. At the same time, when the buffer plate 400 swings downward to the lowest point, the inner wall of the limiting groove 404 supports the corresponding buffer plate 400 by supporting the support column 403, thus preventing the buffer plate 400 from swinging downward excessively and causing the multi-level buffer layer to fail. The arc length range of the limiting groove 404 is obtained through multiple tests by those skilled in the art. Therefore, the cooperation between the limiting groove 404 with the set arc length and the support column 403 can accomplish the above-mentioned required functions, which will not be elaborated further below.

[0052] like Figure 4 and Figure 5 As shown, the upper material trough 3a is located on the upper right side of the feeding box 2. The lower part of the feeding box 2 is composed of three inclined sections that gradually slope from left to right. The lower material trough 3b is aligned with the rightmost inclined section at the lower end of the feeding box 2.

[0053] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the sorting component 42 also includes rotating piles 421. Two rotating piles 421 are symmetrically arranged on the upper end face of the rightmost inclined section below the material box 2. The swing plate 420 is fixedly sleeved on the rotating piles 421. Taking the front swing plate 420 as an example, the front swing plate 420 consists of an inclined section and a horizontal section from left to right. The inclined section is inclined forward from left to right.

[0054] When the transverse sections of the two swing plates 420 are parallel, the spacing is the same as the width of the horizontal section of the conveyor belt.

[0055] like Figure 4 and Figure 5 As shown, the front and rear end faces of the feeding box 2 are slidably penetrated by drive columns 422. The drive columns 422 are rotatably connected to the inclined section of the corresponding swing plate 420. The drive columns 422 are driven by a hydraulic cylinder (not shown in the figure) to move back and forth.

[0056] After completing the multi-stage buffer feeding operation, the crushed stone slides down along the upper surface of the lowest buffer plate 400 onto the lower part of the feeding box 2. The crushed stone then moves along the three inclined sections of the lower part of the feeding box 2 to the lower side trough 3b, which is the process of feeding the crushed stone after buffering. Finally, the crushed stone enters the conveyor belt for conveying after passing through the lower side trough 3b. During the process of the crushed stone moving along the inclined section of the lower part of the feeding box 2, the external hydraulic cylinder works to make the drive column 422 move back and forth. The drive column 422 drives the swing plate 420 on it to move synchronously, thus causing the two swing plates 420 to swing back and forth. It should be noted that in the initial state, the transverse sections of the two swing plates 420 are parallel, and at this time the two inclined sections cooperate to form The guide channels, with their gradually decreasing spacing from left to right, cause the crushed stone to gradually shrink in the front-to-back range, ensuring that the front-to-back range of the crushed stone accumulation during subsequent feeding is within the front-to-back range of the horizontal section of the conveyor belt. This prevents the crushed stone from moving out of the designated area during feeding. The reciprocating swing motion of the swing plates 420 allows the crushed stone between the two swing plates 420 to move back and forth when blocked, preventing blockage during feeding. Furthermore, the mutual approach of the two transverse sections causes the crushed stone to gather into a pile, allowing it to be fed onto the conveyor belt in a piled state. The piled crushed stone helps stabilize the material center, preventing the conveyor belt from deviating from its course. Additionally, the piled crushed stone covers fine powder and dust, preventing dust from escaping during crushed stone transportation and affecting the working environment.

[0057] like Figure 3 and Figure 4As shown, in order to avoid impact and damage to the rotating pile 421 during the crushing process, two symmetrical anti-blocking blocks 423 are fixedly installed on the middle inclined section of the lower part of the feeding box 2, with the right ends of the two anti-blocking blocks 423 located between the two rotating piles 421.

[0058] During the process of crushed stone falling from the buffer assembly 40 to the lower part of the feeding box 2, the anti-blocking block 423 guides the movement of the crushed stone to avoid damage to the rotating pile 421 and the swing plate 420 caused by the crushed stone impacting the rotating pile 421 during the feeding process.

[0059] like Figure 1 , Figure 2 and Figure 6 As shown, the deceleration component 41 also includes a mounting bracket 411. Two symmetrical mounting brackets 411 are fixedly installed on the inner wall of the lower material trough 3b. The right end of the inclined section of the swing plate 420 is located between the two mounting brackets 411.

[0060] Two rotating shafts 412 are rotatably arranged between the two mounting brackets 411, and a belt 410 of the same speed is set on the two rotating shafts 412. The inclination angle of the belt 410 of the same speed is the same as that of the inclined section on the right side of the feed box 2.

[0061] like Figure 2 and Figure 6 As shown, a drive shaft 413 is rotatably mounted between the two mounting brackets 411. The drive shaft 413 is driven by a drive belt 414 to drive the left rotating shaft 412 and the corresponding left conveying roller in the conveying equipment.

[0062] As the crushed stone slides along the lower part of the feeding box 2 and is fed through the lower chute 3b, the leftmost conveying roller in the conveying equipment drives the drive shaft 413 to rotate synchronously through the corresponding drive belt 414. The drive shaft 413 drives the rotating shaft 412 to rotate synchronously through the corresponding drive belt 414. Therefore, the speed of the belt 410 is the same as that of the conveyor belt. As the crushed stone slides down through the lower chute 3b onto the belt 410, the speed of the crushed stone is controlled by the belt 410, making the speed of the crushed stone the same as that of the conveyor belt. That is, the conveyor belt, the belt 410, and the crushed stone are relatively stationary. Thus, when the crushed stone is conveyed to the conveyor belt by the belt 410, the friction between the crushed stone and the conveyor belt is minimized, reducing the wear of the crushed stone on the conveyor belt during the feeding process and extending the service life of the conveyor belt.

[0063] like Figure 3 and Figure 4 As shown, the dust suppression assembly includes a dust suppression curtain 50, and the dust suppression curtain 50 is fixedly installed on the lower end face of the fixing frame 401 and the upper inner wall of the lower material trough 3b.

[0064] As the crushed stone falls from the buffer component 40 and passes through the sorting component 42 along the lower part of the feeding box 2, the dust suppression curtain 50 prevents dust from escaping due to the movement of the crushed stone and the entrainment of air during the falling process, effectively protecting the working environment.

[0065] It should be further explained that in existing technologies, a single buffer layer is used to buffer falling gravel, and this single buffer layer is usually a flat plate. After buffering, the gravel is directly fed onto the conveyor belt. However, this technology adds a buffer component 40, a sorting component 42, and a deceleration component 41. The buffer component 40 forms a multi-stage buffer layer, which gradually buffers and offsets the impact force carried by the gravel. The sorting component 42 causes the buffered gravel to be conveyed in a pile. Then, the deceleration component 41 ensures that the gravel is conveyed at the same speed as the conveyor belt. In summary, from top to bottom, a multi-stage buffering, oscillating sorting, and same-speed conveying operation is formed. The high-speed conveying mechanism works in conjunction with the other components to form a two-stage buffer, allowing the crushed stone to be conveyed onto the conveyor belt at a low impact and constant speed, reducing wear on the conveyor belt. The oscillating and tidying action causes the crushed stone to be discharged onto the conveyor belt in a piled state. The piled crushed stone helps stabilize the center of the material and covers fine powder and dust, preventing dust from escaping during the crushed stone conveying process and affecting the quality of the working environment. The added components are all existing conventional components, which can be used for a long time after a single installation. Compared with the effects and long-term economic benefits brought by the existing technology, the cost of the added components is negligible. In summary, this technical solution is a specific improvement made entirely based on and to solve the defects of the existing technology.

[0066] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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 the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0067] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" 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 communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0069] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A granite crushed stone conveying device, used in conjunction with a mining conveyor, characterized in that, include: The support is located on the left side of the conveyor belt in the mining conveyor. A feeding box is provided on the support. An upper material trough is opened on the upper end face of the feeding box, and a lower material trough is opened on the right end face of the feeding box. The feeding box is equipped with a feeding mechanism, which includes a buffer assembly and a deceleration assembly distributed from top to bottom. The buffer assembly includes multiple buffer plates distributed from top to bottom. The buffer plates are hinged to the side of the feeding box and the impact force of the crushed stone is offset by the buffer plates during feeding. The feeding mechanism also includes a sorting component disposed between the buffer component and the slowing component. The sorting component includes two symmetrically distributed swing plates, which control the front-to-back range and shape of the crushed stone. The sorting component also includes rotating piles. Two symmetrically distributed rotating piles are rotatably disposed on the upper end face of the rightmost inclined section below the feeding box, and the swing plates are fixedly sleeved on the rotating piles. Both the front and rear end faces of the feeding box are slidably penetrated by drive columns, which are rotatably connected to the inclined sections of the corresponding swing plates. During the process of the crushed stone moving along the inclined part at the lower end of the feeding box, the external hydraulic cylinder works to make the drive columns move back and forth, and the drive columns drive the swing plates on them to move synchronously, thus making the two swing plates swing back and forth. The deceleration component includes a belt rotating at the same speed as the conveyor belt, which allows the crushed stone to enter the conveyor belt in a relatively stationary state relative to the conveyor belt. The feeding box is equipped with a dust suppression component to reduce dust during the feeding process; The system utilizes multiple buffer plates in the buffer assembly to form a multi-level buffer layer from top to bottom, gradually consuming the impact force of the crushed stone. Two swing plates control the front and back range of the crushed stone accumulation and make its shape into a pile. Finally, the crushed stone enters the conveyor belt at the same speed as the conveyor belt through a belt of the same speed. From top to bottom, a multi-level buffering, swinging and sorting and same-speed conveying operation is formed for material feeding and conveying.

2. The granite crushing and conveying equipment according to claim 1, characterized in that: All the buffer plates are staggered from top to bottom on the corresponding hinged sides of the feed box, with the uppermost buffer plate hinged to the right end face inside the feed box. The buffer assembly also includes a fixing frame. A fixing frame corresponding to and located below the corresponding buffer plate is fixedly installed inside the feeding box. Multiple springs arranged in a matrix are fixedly installed between the fixing frame and the corresponding buffer plate.

3. The granite crushing and conveying equipment according to claim 2, characterized in that: The buffer plate is fixedly provided with a support column extending forward and backward on one end away from its corresponding hinge point. Both the front and rear ends of the feeding box are provided with limiting grooves that correspond to the buffer plate and are fan-shaped. The axis of the limiting grooves is collinear with the rotation axis of the corresponding buffer plate. The front and rear ends of the support column are respectively located in the corresponding limiting grooves.

4. The granite crushing and conveying equipment according to claim 1, characterized in that: The upper material chute is located on the upper right side of the feeding box. The lower part of the feeding box consists of three inclined sections that gradually slope from left to right. The lower material chute is aligned with the rightmost inclined section at the bottom of the feeding box.

5. The granite crushing and conveying equipment according to claim 1, characterized in that: The swing plate consists of an inclined section and a horizontal section from left to right, with the inclined section tilting forward from left to right. When the transverse sections of the two oscillating plates are parallel, the spacing between them is the same as the width of the horizontal section of the conveyor belt.

6. The granite crushing and conveying equipment according to claim 5, characterized in that: Two anti-blocking blocks are fixedly installed on the middle inclined section of the lower part of the feeding box, and the right ends of the two anti-blocking blocks are located between the two rotating piles. During the process of crushed stone falling from the buffer assembly to the lower part of the feeding box, the movement of crushed stone is guided by the anti-blocking block to avoid the crushed stone impacting the rotating pile during the feeding process, which could cause damage to the rotating pile and the swing plate.

7. The granite crushing and conveying equipment according to claim 1, characterized in that: The deceleration assembly also includes mounting brackets, with two symmetrical mounting brackets fixedly installed on the inner wall of the lower trough, and the right end of the inclined section of the swing plate located between the two mounting brackets. Two rotating shafts are provided between the two mounting brackets, one on each side. A belt with the same speed is installed on the two rotating shafts, and the inclination angle of the belt with the same speed is the same as the inclination section on the right side of the feed box.

8. A granite crushing stone conveying device according to claim 7, characterized in that: A drive shaft is rotatably connected between the two mounting brackets. The drive shaft is connected to the left rotating shaft and to the corresponding left conveyor roller in the conveying equipment via a drive belt.

9. A granite crushing and conveying device according to claim 1, characterized in that: The dust suppression assembly includes a dust suppression curtain, with the lower end face of the fixing frame and the upper inner wall of the lower material trough both fixedly provided with dust suppression curtains.

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