A buffer bed for transporting mineral powder

Abstract

The present invention discloses a buffer bed for mineral powder transportation, which belongs to the technical field of buffer beds. The present invention includes a buffer member that disperses the impact force of a conveyor belt, and the bottom of the buffer member is fixedly connected to a shock-absorbing assembly, and the shock-absorbing assembly can provide shock absorption for the buffer member. Telescopic members are respectively provided on both sides of the buffer member, and a gap is provided between the telescopic member and the buffer member. The telescopic member can stretch to increase the area, and the telescopic member can return to a contracted state in a natural state. The telescopic member is connected to a lifting member, and the lifting member can drive the telescopic member to stretch. The lifting member is connected to the shock-absorbing assembly through a hydraulic pipeline. By setting a shock-absorbing assembly, the present invention can buffer downward when encountering a large impact from a large piece of ore, thereby preventing the impact force from causing damage to the buffer member itself and the conveyor belt.

Description

Technical Field

[0001] The present invention relates to the technical field of buffer beds, and in particular to a buffer bed for transporting mineral powder. Background Art

[0002] Mineral powder, a product of pulverized ore, is typically transported within factories using conveyor belts. When mineral powder falls from a height onto the conveyor belt, it impacts the belt. To absorb this impact and extend the belt's lifespan, a buffer bed is installed beneath the conveyor belt. The buffer bed consists of buffer strips, primarily made of a high-quality, highly elastic special rubber layer. These strips effectively absorb the impact of the falling mineral powder, significantly reducing the impact on the conveyor belt.

[0003] Mineral fines are in powder form and have uniform flowability. Their own gravity and the friction of the conveyor belt keep them stably contained on the conveyor belt. Therefore, when conveying mineral fines, baffles are not necessary on either side of the conveyor belt. However, the mineral fines can contain large, unbroken chunks of ore. When they fall, they can exert a significant impact on the impact bed and cause the mineral fines to fly to the sides, disrupting normal work. If baffles are installed, mineral fines can easily accumulate inside the baffles, making cleanup more difficult. Once hardened, the accumulated material rubs against the edges of the conveyor belt, causing additional wear. Summary of the Invention

[0004] In view of the above-mentioned shortcomings, the present invention provides a buffer bed for transporting mineral powder, which can absorb the impact force while preventing the mineral powder from flying out to both sides, thereby ensuring the normal work of the staff.

[0005] The present invention protects a buffer bed for transporting mineral powder, the buffer bed comprising a buffer member for dispersing the impact force of a conveyor belt, the bottom of the buffer member being fixedly connected to a shock absorbing assembly, the shock absorbing assembly being able to provide shock absorption for the buffer member;

[0006] A telescopic member is provided on both sides of the buffer member, with a gap between the telescopic member and the buffer member. The telescopic member can be extended to increase the area, and can be restored to a contracted state in a natural state. The telescopic member is connected to a lifting member, and the lifting member can drive the telescopic member to extend;

[0007] The lifting member is connected to the shock absorbing assembly via a hydraulic pipeline;

[0008] When the buffer is impacted, the buffer can transfer the impact force to the shock absorbing assembly, and the shock absorbing assembly can transfer the consumed impact force to the lifting member through the hydraulic pipeline. The lifting member drives the telescopic member to extend, the impact force disappears, and the telescopic member returns to a contracted state.

[0009] Furthermore, the shock absorbing assembly includes a first bottom plate, a plurality of dampers are vertically fixedly arranged on the first bottom plate, and the top ends of the dampers are fixedly connected to the buffer member;

[0010] A master hydraulic cylinder is provided on the periphery of the plurality of dampers, the top end of the master hydraulic cylinder is hinged to the buffer member, and the bottom end of the master hydraulic cylinder is hinged to the first bottom plate;

[0011] A side plate is vertically fixed on the first bottom plate, and the side plate can protect the master hydraulic cylinder.

[0012] Furthermore, the buffer member includes a plurality of parallel steel rails, a buffer bed is fixedly arranged on the steel rails, and adjacent steel rails are connected by connecting plates, and the connecting plates are arranged at the top ends of the steel rails;

[0013] A first guide wheel is provided at the end of the rail, and the first guide wheel abuts against the inner side wall of the side plate;

[0014] The top end of the damper is fixedly connected to the bottom surface of the rail, and the top end of the master hydraulic cylinder is hinged to the bottom surface of the first bottom plate.

[0015] Furthermore, the telescopic member includes an arc-shaped extension plate, the outer side of the extension plate is provided with an arc-shaped plate sleeve with an open top, the bottom of the extension plate is placed inside the plate sleeve, and the bottom end of the plate sleeve is fixedly arranged on the second bottom plate;

[0016] An insulating raised strip is provided on the side of the protruding plate facing away from the buffer member, and a triangular block is provided on the raised strip;

[0017] A plurality of second guide wheels are provided on the surface of the extending plate, and the second guide wheels can limit the trajectory of the extending plate extending out and entering the plate sleeve.

[0018] Furthermore, a dust collecting box is provided on the side wall of the plate sleeve, and the dust collecting box is close to the buffer member;

[0019] The side wall of the dust collecting box is extended upward to form an inclined scraper. When the extended plate is retracted, the scraper can gather the mineral powder on the surface of the extended plate and guide it into the dust collecting box.

[0020] Furthermore, the lifting member includes at least two auxiliary hydraulic cylinders, the top ends of the auxiliary hydraulic cylinders are hinged to the triangular block, and the bottom ends of the auxiliary hydraulic cylinders are hinged to the second bottom plate.

[0021] Furthermore, the auxiliary hydraulic cylinder includes an auxiliary cylinder body and an auxiliary hydraulic rod movably arranged in the auxiliary cylinder body. A spring is sleeved on the outer side of the auxiliary hydraulic rod. The top end of the spring is fixedly connected to the outer wall of the auxiliary hydraulic rod, and the bottom end of the spring is fixed to the top end of the auxiliary cylinder body.

[0022] Furthermore, the buffer bed also includes a friction part, which is arranged on the outside of the telescopic part and fits with the surface of the telescopic part. When the telescopic part is extended, the friction part rubs against the telescopic part, causing the telescopic part to generate electrostatic adsorption of mineral powder.

[0023] Furthermore, the friction member includes a first friction cylinder, a transmission cylinder and a second friction cylinder which are arranged to rotate in sequence;

[0024] First gears are provided at both ends of the first friction cylinder;

[0025] Transmission gears are provided at both ends of the transmission cylinder;

[0026] Second gears are provided at both ends of the second friction cylinder;

[0027] The first gear, the transmission gear and the second gear are meshed in sequence; the first gear, the transmission gear and the second gear are all rotatably arranged on the bracket.

[0028] Furthermore, the hydraulic pipeline includes an upper pipeline group arranged at the top and a lower pipeline group arranged at the bottom;

[0029] Two ends of the upper pipeline group are connected to the upper part of the shock absorbing assembly and the upper part of the lifting member;

[0030] The two ends of the lower pipe group are connected to the lower part of the shock absorbing assembly and the lower part of the lifting member;

[0031] The upper pipeline group includes a first pipeline and two second pipelines. First one-way valves are provided at both ends of the first pipeline to allow the hydraulic oil to flow from the shock absorbing assembly to the lifting member; second one-way valves are provided at both ends of the second pipeline to allow the hydraulic oil to flow from the lifting member to the shock absorbing assembly;

[0032] The lower pipeline group includes two third pipelines and one fourth pipeline. Third one-way valves are provided at both ends of the third pipeline to allow hydraulic oil to flow from the shock absorbing assembly to the lifting member; fourth one-way valves are provided at both ends of the fourth pipeline to allow hydraulic oil to flow from the lifting member to the shock absorbing assembly.

[0033] Beneficial effects: The present invention provides a shock-absorbing assembly. When encountering a large impact from a large piece of ore, the buffer member can buffer downward, preventing the impact force from damaging the buffer member itself and the conveyor belt. In addition, the shock-absorbing assembly can play a screening role. Smaller impact forces can be directly absorbed, while larger impact forces will be consumed and then transmitted to the lifting member for lifting. By providing a telescopic member, the lifting member can drive the telescopic member to extend, increasing its area. In this way, when encountering a large impact force, the area of ​​the telescopic member increases, which can block mineral powder and prevent large pieces of ore from rolling out of the conveyor belt. At the same time, after the large impact force disappears, the telescopic member can also return to the contracted state, preventing mineral powder from accumulating inside the telescopic member, ensuring the normal operation of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] in:

[0036] Figure 1 This is a schematic diagram of the overall structure of a buffer bed for transporting mineral powder in a contracted state according to one embodiment of the present invention;

[0037] Figure 2 This is a schematic structural diagram of some components of a buffer bed for transporting mineral powder in a retracted state from a first angle according to one embodiment of the present invention;

[0038] Figure 3 This is a schematic structural diagram of some components of a buffer bed for transporting mineral powder in a retracted state from a second angle according to one embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of the overall structure of a buffer bed for transporting mineral powder in an extended state according to one embodiment of the present invention;

[0040] Figure 5 for Figure 4 A partial enlarged view of part A;

[0041] Figure 6 A partial cross-sectional view of a telescopic member at a first angle in one embodiment of the present invention;

[0042] Figure 7 A partial cross-sectional view of a telescopic member at a second angle in one embodiment of the present invention;

[0043] Figure 8 This is a schematic structural diagram of a hydraulic pipeline in one embodiment of the present invention;

[0044] In the figure, 1, buffer member; 11, buffer bed; 12, rail; 13, first guide wheel; 14, connecting plate;

[0045] 2. Telescopic member; 21. Extended plate; 211. Raised strip; 22. Triangular block; 23. Plate sleeve; 231. Scraper; 24. Second guide wheel; 25. Second bottom plate; 26. Dust box;

[0046] 3. Friction member; 31. Bracket; 32. First friction cylinder; 33. First gear; 34. Transmission gear; 35. Transmission cylinder; 36. Second gear; 37. Second friction cylinder;

[0047] 4. Lifting member; 41. Auxiliary hydraulic cylinder; 411. Spring; 412. Auxiliary hydraulic rod; 413. Auxiliary cylinder body;

[0048] 5. Hydraulic pipeline; 51. First pipeline; 52. First one-way valve; 53. Second pipeline; 54. Second one-way valve; 55. Third pipeline; 56. Third one-way valve; 57. Fourth pipeline; 58. Fourth one-way valve;

[0049] 6. Shock absorption assembly; 61. Main hydraulic cylinder; 62. Damper; 63. First base plate; 64. Side plate. DETAILED DESCRIPTION

[0050] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0051] refer to Figures 1 to 8 The present invention protects a buffer bed for transporting mineral powder, the buffer bed comprising a buffer member 1 for dispersing the impact force of a conveyor belt, the bottom of the buffer member 1 being fixedly connected to a shock absorbing assembly 6, which can provide shock absorption for the buffer member 1;

[0052] A telescopic member 2 is provided on both sides of the buffer member 1. There is a gap between the telescopic member 2 and the buffer member 1. The telescopic member 2 can be stretched to increase the area. The telescopic member 2 can be restored to a contracted state in a natural state. The telescopic member 2 is connected to a lifting member 4, and the lifting member 4 can drive the telescopic member 2 to stretch.

[0053] The lifting member 4 is connected to the shock absorbing assembly 6 via a hydraulic pipeline 5;

[0054] When the buffer 1 is impacted, the buffer 1 can transmit the impact force to the shock absorbing assembly 6, and the shock absorbing assembly 6 can transmit the consumed impact force to the lifting member 4 through the hydraulic pipeline 5. The lifting member 4 drives the telescopic member 2 to extend, the impact force disappears, and the telescopic member 2 returns to the contracted state.

[0055] The present invention provides a shock-absorbing assembly 6. When encountering a large impact from a large piece of ore, the buffer member 1 can buffer downward, preventing the impact force from damaging the buffer member 1 itself and the conveyor belt. In addition, the shock-absorbing assembly 6 can play a screening role, directly absorbing smaller impact forces, while larger impact forces are absorbed and then transmitted to the lifting member 4 for lifting. By providing a telescopic member 2, the lifting member 4 can drive the telescopic member 2 to extend, increasing its area. In this way, when encountering a large impact force, the area of ​​the telescopic member 2 increases, which can block mineral powder and prevent large pieces of ore from rolling off the conveyor belt. At the same time, after the large impact force disappears, the telescopic member 2 can also return to the contracted state, preventing mineral powder from accumulating inside the telescopic member 2 and ensuring the normal operation of the conveyor belt.

[0056] In a specific embodiment, the shock absorbing assembly 6 includes a first base plate 63 , on which a plurality of dampers 62 are vertically fixedly disposed, and the top ends of the dampers 62 are fixedly connected to the buffer member 1 .

[0057] A master hydraulic cylinder 61 is disposed around the outer periphery of the multiple dampers 62. Specifically, in this embodiment, there are four dampers 62, which are connected in sequence to form a square. The master hydraulic cylinders 61 are disposed outside the square. The four master hydraulic cylinders 61 are also four in number, each group of two, with two groups of master hydraulic cylinders 61 symmetrically disposed on either side of the square. The top ends of the master hydraulic cylinders 61 are hingedly connected to the buffer member 1, and the bottom ends of the master hydraulic cylinders 61 are hingedly connected to the first base plate 63.

[0058] A side plate 64 is vertically fixed on the first bottom plate 63, and the side plate 64 can protect the main hydraulic cylinder 61. The side plate 64 is a U-shaped plate with the U-shaped opening facing the main hydraulic cylinder 61, which can fully protect the main hydraulic cylinder 61.

[0059] In this embodiment, the fixed damper 62 absorbs vibrations from multiple angles of the buffer member 1, effectively dissipating impact forces. Both ends of the master hydraulic cylinder 61 are hinged, allowing them to rotate to a certain degree. This prevents non-axial forces from damaging the master hydraulic cylinder 61 and extends its service life. Furthermore, when non-axial forces act on the master hydraulic cylinder 61, it first deflects and then converts them into axial forces for hydraulic operation. This process dissipates some of the impact force, leaving only the greater impact force sufficient to drive the lifting member 4 and the telescopic member 2.

[0060] In one embodiment, the buffer 1 includes a plurality of parallel rails 12, on which a buffer bed 11 is fixedly mounted. Adjacent rails 12 are connected by connecting plates 14, which are located at the tops of the rails 12. The buffer bed 11 is a conventional commercially available buffer bed with buffer strips on its surface, which can absorb some of the impact force and protect the conveyor belt.

[0061] A first guide wheel 13 is provided at the end of the rail 12, abutting the inner sidewall of the side plate 64. If the side plate 64 is a U-shaped plate, two first guide wheels 13 are provided at the end of the rail 12, one axially positioned and the other radially positioned. These two first guide wheels 13 abut against portions of the side plate 64 at different angles. The top end of the damper 62 is fixedly connected to the bottom surface of the rail 12, while the top end of the master hydraulic cylinder 61 is hingedly connected to the bottom surface of the first base plate 63.

[0062] In this embodiment, the first guide wheel 13 is brought into contact with the side plates 64. Since the first guide wheels 13 are provided at both ends of the rail 12, the rail 12 is squeezed between the two side plates 64, causing the rail 12 to move vertically along the side plates 64. When the side plates 64 are U-shaped plates, the mutually perpendicular first guide wheels 13 can more firmly contact the side plates 64, thereby increasing the stability of the rail 12. In this way, no matter from which angle the buffer 1 is impacted, after the buffer 1 is transferred to the rail 12, under the action of the first guide wheel 13, the rail 12 will move vertically downward, which can effectively protect the damper 62 and the main hydraulic cylinder 61. In this embodiment, the connection positions of the damper 62 and the main hydraulic cylinder 61 are different. The rail 12 is located further down. When the buffer 1 moves downward, the rail 12 acts more directly on the damper 62, and the connecting plate 14 will drive the main hydraulic cylinder 61 later. Like this, damper 62 can preferentially consume part of impact force, and if impact force is less, then can not drive main hydraulic cylinder 61 to work, can make different response to different impact force.Only when impact force is bigger, can drive main hydraulic cylinder 61 to work.

[0063] In one embodiment, the telescopic member 2 includes an arcuate extension plate 21, the outer side of which is sheathed with an arcuate plate sleeve 23 with an open top. The bottom of the extension plate 21 is positioned within the plate sleeve 23, and the bottom end of the plate sleeve 23 is fixedly mounted on a second base plate 25. Specifically, in the retracted state, the top end of the extension plate 21 protrudes from the plate sleeve 23, while the middle and bottom portions of the extension plate 21 are positioned within the plate sleeve 23.

[0064] An insulating raised strip 211 is provided on the side of the extended plate 21 facing away from the buffer 1, and a triangular block 22 is provided on the raised strip 211. The raised strip 211 can be horizontally arranged or vertically arranged, and the triangular block 22 is arranged on the horizontally arranged raised strip 211.

[0065] A plurality of second guide wheels 24 are provided on the surface of the extending plate 21 , and the second guide wheels 24 can define the trajectory of the extending plate 21 extending out and entering the plate sleeve 23 .

[0066] In this embodiment, the curved extension plate 21 and the curved plate sleeve 23 are provided. The extension plate 21 extends upward along an arcuate trajectory. Furthermore, the extension plate 21 itself is curved, and its top portion covers the top of the buffer 1 when extended. This provides a better wrapping of the buffer 1 and makes it more difficult for mineral powder to escape. The provision of a second guide wheel 24 not only increases the smoothness of the extension of the extension plate 21, making it easier to extend and effectively block mineral powder, but also limits the extension trajectory of the extension plate 21 by squeezing it, allowing it to expand and contract more smoothly.

[0067] In a specific embodiment, a dust collecting box 26 is provided on the side wall of the plate sleeve 23, and the dust collecting box 26 is close to the buffer member 1. The dust collecting box 26 is a box body without a cover.

[0068] The side wall of the dust collecting box 26 extends upward to form an inclined scraper 231. When the extension plate 21 retracts, the scraper 231 can gather the mineral powder on the surface of the extension plate 21 and guide it into the dust collecting box 26.

[0069] In this embodiment, the scraper 231 is provided to scrape the mineral powder on the inner surface of the extension plate 21 into the dust collection box 26. The scraper 231 is arranged at an angle so that even a small amount of mineral powder on the surface of the extension plate 21 can be gathered along the high point of the scraper 231 to the low point of the scraper 231, forming a larger volume of mineral powder for scraping, thereby improving the scraping effect.

[0070] In one embodiment, the lifting member 4 includes at least two auxiliary hydraulic cylinders 41, the top ends of which are hingedly connected to the triangular block 22, and the bottom ends of which are hingedly connected to the second base plate 25. By setting the ends of the auxiliary hydraulic cylinders 41 as hinged connections, the movement flexibility of the auxiliary hydraulic cylinders 41 can be increased, and the arc-shaped movement trajectory of the arc-shaped extension plate 21 can be better matched.

[0071] In one specific embodiment, the auxiliary hydraulic cylinder 41 includes an auxiliary cylinder body 413 and an auxiliary hydraulic rod 412 movably disposed within the auxiliary cylinder body 413. A spring 411 is sleeved on the outer side of the auxiliary hydraulic rod 412. The top end of the spring 411 is fixedly connected to the outer wall of the auxiliary hydraulic rod 412, and the bottom end of the spring 411 is fixed to the top end of the auxiliary cylinder body 413. In this embodiment, the provision of the spring 411 enables the spring 411 to pull the auxiliary hydraulic rod 412 back into the auxiliary cylinder body 413 after the auxiliary hydraulic cylinder 411 is extended, thereby pulling the extended plate 21 back into the plate sleeve 23 to achieve reset.

[0072] In one specific embodiment, the device further includes a friction member 3, which is positioned outside the telescopic member 2. The friction member 3 engages the surface of the telescopic member 2. When the telescopic member 2 is extended, the friction member 3 rubs against the telescopic member 2, causing the telescopic member 2 to generate static electricity and absorb the mineral powder. Specifically, the friction member 3 contacts the extension plate 21, and the friction generates static electricity on the extension plate 21. After the friction member 3 is installed, the extension plate 21 should be insulated as much as possible and installed within the plate sleeve 23 to prevent the discharge of static electricity. Of course, when the extension plate 21 is fully retracted, the static electricity needs to be discharged to allow the mineral powder on its surface to fall off.

[0073] In this embodiment, the friction member 3 is provided to generate static electricity on the extended plate 21 , so that the inner side of the extended plate 21 can better block the mineral powder and prevent the mineral powder from overflowing.

[0074] In a specific embodiment, the friction member 3 includes a first friction cylinder 32, a transmission cylinder 35, and a second friction cylinder 37, which are rotatably arranged in sequence. A first gear 33 is provided at both ends of the first friction cylinder 32. A transmission gear 34 is provided at both ends of the transmission cylinder 35. A second gear 36 is provided at both ends of the second friction cylinder 37. The first gear 33, the transmission gear 34, and the second gear 36 are meshed in sequence. The first gear 33, the transmission gear 34, and the second gear 36 are all rotatably arranged on the bracket 31. Specifically, in this embodiment, the first friction cylinder 32 and the second friction cylinder 37 are both in contact with the extension plate 21. When the extension plate 21 is extended, it can generate static electricity in a shorter time, effectively adsorbing mineral powder. The purpose of arranging the triangular block 22 on the insulating raised strip 211 is to prevent static electricity from being discharged through the triangular block 22.

[0075] Preferably, grooves are provided on both the first friction cylinder 32 and the second friction cylinder 37, which mate with the vertically disposed raised strips 211. The provision of the grooves further defines the extension direction of the extension plate 21, preventing the extension plate 21 from deviating horizontally and allowing for more precise extension and retraction of the extension plate 21.

[0076] In a specific embodiment, the hydraulic pipeline 5 includes an upper pipeline group arranged at the top and a lower pipeline group arranged at the bottom.

[0077] Both ends of the upper pipeline group are connected to the upper part of the shock absorbing assembly 6 and the upper part of the lifting member 4.

[0078] Both ends of the lower pipeline group are connected to the lower part of the shock absorbing assembly 6 and the lower part of the lifting member 4.

[0079] The upper pipeline group includes a first pipeline 51 and two second pipelines 53. First one-way valves 52 are installed at both ends of the first pipeline 51 to allow hydraulic oil to flow from the shock absorbing assembly 6 to the lifting member 4. Second one-way valves 54 are installed at both ends of the second pipeline 53 to allow hydraulic oil to flow from the lifting member 4 to the shock absorbing assembly 6.

[0080] The lower pipeline group includes two third pipelines 55 and one fourth pipeline 57. Third one-way valves 56 are installed at both ends of the third pipeline 55 to allow hydraulic oil to flow from the shock absorbing assembly 6 to the lifting member 4. Fourth one-way valves 58 are installed at both ends of the fourth pipeline 57 to allow hydraulic oil to flow from the lifting member 4 to the shock absorbing assembly 6.

[0081] In this embodiment, a one-way valve is provided to limit the flow direction of the hydraulic oil. When the main hydraulic cylinder 61 is compressed, the hydraulic oil at the bottom flows into the auxiliary hydraulic cylinder 41 through the two third lines 55. Simultaneously, the hydraulic oil at the top of the auxiliary hydraulic cylinder 41 flows into the top of the main hydraulic cylinder 61 through the two second lines 53. This high flow rate of hydraulic oil enables the auxiliary hydraulic cylinder 41 to quickly lift the extension plate 21. When the auxiliary hydraulic cylinder 41 is compressed, the hydraulic oil at the bottom flows into the bottom of the main hydraulic cylinder 61 through the single fourth line 57. Simultaneously, the hydraulic oil at the top of the main hydraulic cylinder 61 flows into the top of the auxiliary hydraulic cylinder 41 through the single first line 51. This low flow rate of hydraulic oil allows the auxiliary hydraulic cylinder 41 to slowly retract the extension plate 21. This embodiment enables the extension plate 21 to extend quickly and retract slowly, extending the time the extension plate 21 can block and absorb mineral powder, effectively preventing mineral powder from overflowing.

[0082] In a specific embodiment, the extension plate 21 is made of aluminum or stainless steel, and the first friction cylinder 32 and the second friction cylinder 37 are made of polytetrafluoroethylene or nylon. The parameters of the main hydraulic cylinder 61 and the auxiliary hydraulic cylinder 41 are shown in Table 1:

[0083] Table 1 Parameter summary

[0084]

[0085] The lifting height of the extended plate 21 in this embodiment is ≈450 mm, which can intercept 40 cm of mineral powder.

[0086] The above disclosure is merely a preferred embodiment of the present invention and certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A buffer bed for transporting mineral powder, characterized in that: It comprises a buffer (1) for dispersing the impact force of a conveyor belt, wherein the bottom of the buffer (1) is fixedly connected to a shock absorbing component (6), and the shock absorbing component (6) can provide shock absorption for the buffer (1); Telescopic members (2) are respectively provided on both sides of the buffer member (1), a gap is provided between the telescopic member (2) and the buffer member (1), the telescopic member (2) can be extended to increase the area, and the telescopic member (2) can be restored to a contracted state in a natural state, the telescopic member (2) is connected to a lifting member (4), and the lifting member (4) can drive the telescopic member (2) to extend; The lifting member (4) is connected to the shock absorbing assembly (6) via a hydraulic pipeline (5); When the buffer (1) is impacted, the buffer (1) can transmit the impact force to the shock absorbing assembly (6), and the shock absorbing assembly (6) can transmit the consumed impact force to the lifting member (4) through the hydraulic pipeline (5), and the lifting member (4) drives the telescopic member (2) to extend, and the impact force disappears, and the telescopic member (2) returns to the contracted state; The invention also includes a friction member (3), which is arranged on the outside of the telescopic member (2). The friction member (3) is in contact with the surface of the telescopic member (2). When the telescopic member (2) is extended, the friction member (3) rubs against the telescopic member (2), causing the telescopic member (2) to generate electrostatic adsorption of mineral powder.

2. The impact bed for transporting mineral powder according to claim 1, characterized in that: The shock absorbing assembly (6) comprises a first base plate (63), a plurality of dampers (62) are vertically fixedly arranged on the first base plate (63), and the top ends of the dampers (62) are fixedly connected to the buffer member (1); A main hydraulic cylinder (61) is provided on the periphery of the plurality of dampers (62), the top end of the main hydraulic cylinder (61) is hinged to the buffer member (1), and the bottom end of the main hydraulic cylinder (61) is hinged to the first bottom plate (63); A side plate (64) is vertically fixed on the first bottom plate (63), and the side plate (64) can protect the main hydraulic cylinder (61).

3. The impact bed for transporting mineral powder according to claim 2, characterized in that: The buffer member (1) comprises a plurality of parallel steel rails (12), a buffer bed (11) is fixedly arranged on the steel rails (12), and adjacent steel rails (12) are connected by connecting plates (14), and the connecting plates (14) are arranged at the top ends of the steel rails (12); A first guide wheel (13) is provided at the end of the steel rail (12), and the first guide wheel (13) abuts against the inner side wall of the side plate (64); The top end of the damper (62) is fixedly connected to the bottom surface of the steel rail (12), and the top end of the master hydraulic cylinder (61) is hinged to the bottom surface of the first bottom plate (63).

4. The impact bed for transporting mineral powder according to claim 1, characterized in that: The telescopic member (2) comprises an arc-shaped extension plate (21), the outer side of the extension plate (21) is provided with an arc-shaped plate sleeve (23) with an open top end, the bottom of the extension plate (21) is placed inside the plate sleeve (23), and the bottom end of the plate sleeve (23) is fixedly arranged on the second bottom plate (25); An insulating raised strip (211) is provided on the side of the protruding plate (21) facing away from the buffer member (1), and a triangular block (22) is provided on the raised strip (211); A plurality of second guide wheels (24) are provided on the surface of the extending plate (21), and the second guide wheels (24) can limit the trajectory of the extending plate (21) extending out and entering the plate sleeve (23).

5. The impact bed for transporting mineral powder according to claim 4, characterized in that: A dust collecting box (26) is provided on the side wall of the plate sleeve (23), and the dust collecting box (26) is close to the buffer member (1); The side wall of the dust collecting box (26) is extended upward to form an inclined scraper (231). When the extended plate (21) is retracted, the scraper (231) can gather and guide the mineral powder on the surface of the extended plate (21) into the dust collecting box (26).

6. The impact bed for transporting mineral powder according to claim 4, characterized in that: The lifting member (4) comprises at least two auxiliary hydraulic cylinders (41), the top ends of the auxiliary hydraulic cylinders (41) are hinged to the triangular block (22), and the bottom ends of the auxiliary hydraulic cylinders (41) are hinged to the second bottom plate (25).

7. The impact bed for transporting mineral powder according to claim 6, characterized in that: The auxiliary hydraulic cylinder (41) includes an auxiliary cylinder body (413) and an auxiliary hydraulic rod (412) movably arranged in the auxiliary cylinder body (413). A spring (411) is sleeved on the outer side of the auxiliary hydraulic rod (412). The top end of the spring (411) is fixedly connected to the outer wall of the auxiliary hydraulic rod (412), and the bottom end of the spring (411) is fixed to the top end of the auxiliary cylinder body (413).

8. The impact bed for transporting mineral powder according to claim 1, characterized in that: The friction member (3) comprises a first friction cylinder (32), a transmission cylinder (35) and a second friction cylinder (37) which are arranged to rotate in sequence; First gears (33) are provided at both ends of the first friction cylinder (32); Transmission gears (34) are provided at both ends of the transmission cylinder (35); Second gears (36) are provided at both ends of the second friction cylinder (37); The first gear (33), the transmission gear (34) and the second gear (36) are meshed in sequence; the first gear (33), the transmission gear (34) and the second gear (36) are all rotatably arranged on the bracket (31).

9. The impact bed for transporting mineral powder according to claim 1, characterized in that: The hydraulic pipeline (5) comprises an upper pipeline group arranged at the top and a lower pipeline group arranged at the bottom; The two ends of the upper pipeline group are connected to the upper part of the shock absorbing component (6) and the upper part of the lifting member (4); The two ends of the lower pipeline group are connected to the lower part of the shock absorbing component (6) and the lower part of the lifting member (4); The upper pipeline group includes a first pipeline (51) and two second pipelines (53). First one-way valves (52) are provided at both ends of the first pipeline (51) to allow hydraulic oil to flow from the shock absorbing assembly (6) to the lifting member (4); second one-way valves (54) are provided at both ends of the second pipeline (53) to allow hydraulic oil to flow from the lifting member (4) to the shock absorbing assembly (6). The lower pipeline group includes two third pipelines (55) and one fourth pipeline (57). Third one-way valves (56) are provided at both ends of the third pipeline (55) to allow the hydraulic oil to flow from the shock absorbing assembly (6) to the lifting member (4); fourth one-way valves (58) are provided at both ends of the fourth pipeline (57) to allow the hydraulic oil to flow from the lifting member (4) to the shock absorbing assembly (6).

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