A type of winnowing basket anti-impact device

Abstract

This invention belongs to the field of mining equipment technology, specifically disclosing a skip anti-impact device, which mainly includes a buffer mechanism and a drive mechanism. The buffer mechanism includes an assembly ring, a chain, and buffer blocks; buffer blocks are fixedly connected to the middle positions of the chain. The drive mechanism includes a support column, a first hydraulic cylinder, a first support arm, a second support arm, and a second hydraulic cylinder. A monitoring mechanism is also installed in the chamber, including a passing point sensor, a material drop sensor, and a controller. By adding a buffer mechanism, the material passes through the chain and buffer blocks, reducing the material velocity and decreasing the energy of the final impact on the skip's bottom plate, thus delaying the wear of the skip. Compared to adding a buffer plate inside the skip, this invention's device is independent of the skip, does not increase the skip's weight, and does not increase the power consumption of moving the skip.

Description

Technical Field

[0001] This invention relates to the field of mining equipment technology, specifically to a skip anti-impact device. Background Technology

[0002] Skips are used in mining production for vertical shaft hoisting and transportation. They are containers that directly load useful minerals, waste rock, or gangue. However, skips are often subjected to impacts during the material loading process. When the material impact velocity is high, and the hardness and particle size are also large, the impacted parts of the skip are easily damaged, such as deformation and excessive wear. Long-term cyclic use will shorten the service life of the skip.

[0003] Currently, most mines add structural components such as buffer plates inside the skip to reduce the impact of falling material on the skip. However, this operation method increases the overall weight of the skip and also increases the power consumption of driving the skip to move up and down.

[0004] Therefore, the present invention proposes a winnowing basket anti-impact device. Summary of the Invention

[0005] The purpose of this invention is to provide a skip anti-impact device that can buffer the impact of falling materials on the skip, reduce the wear of the skip, and extend its service life.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An anti-impact device for a winnowing basket includes a buffer mechanism and a drive mechanism;

[0008] The buffer mechanism includes an assembly ring, a chain, and a buffer block;

[0009] The outer contour of the assembly ring is circular, and multiple clamps are arranged at equal intervals on the assembly ring. A set of chains is set between adjacent clamps. Multiple sets of chains are connected to the assembly ring, and the top of the chains is connected to the assembly ring. The bottom ends of the multiple sets of chains are connected to each other.

[0010] The buffer block is fixedly connected to the middle position of each chain;

[0011] A chamber is provided on the side wall of the well shaft, and the drive mechanism is located in the chamber; the drive mechanism is connected to the assembly ring, and the drive mechanism is used to move the buffer mechanism above the skip or to disengage the buffer mechanism from above the skip.

[0012] Preferably, the assembly ring includes an outer assembly ring and an inner assembly ring, and the chain includes a first chain and a second chain;

[0013] The outer and inner rings of the assembly are both circular in shape. The diameter of the outer ring is larger than that of the inner ring. The outer and inner rings are coplanar. The inner ring is located inside the outer ring. The outer and inner rings are connected and fixed by multiple clamps.

[0014] The outer assembly ring is connected to multiple sets of first chains, the top of the first chains is connected to the outer assembly ring, and the bottom ends of the multiple sets of first chains are connected to each other; the inner assembly ring is connected to multiple sets of second chains, the top of the second chains is connected to the inner assembly ring, and the bottom ends of the multiple sets of second chains are connected to each other.

[0015] The buffer block is fixedly connected to the middle position of both the first chain and the second chain.

[0016] Preferably, the drive mechanism includes an assembly base, a support column, a first hydraulic cylinder, a first support arm, a second support arm, a second hydraulic cylinder, and a support ring;

[0017] The support pole is vertically mounted on the assembly base; the first support arm is a hollow structure, with one end of the first support arm hinged to the top of the support pole, and the other end of the first support arm being open; one end of the second support arm is located inside the first support arm, and the other end of the second support arm is fixedly connected to the support ring; multiple support hooks are fixedly connected to the bottom of the support ring; the assembly outer ring overlaps the support hooks;

[0018] The cylinder body end of the first hydraulic cylinder is hinged to a support column, and the telescopic rod of the first hydraulic cylinder is hinged to a first support arm; the cylinder body end of the second hydraulic cylinder is connected to the first support arm, and the telescopic rod of the second hydraulic cylinder is connected to the second support arm.

[0019] Preferably, the plurality of the support hooks are installed at equal intervals at the bottom of the support ring.

[0020] Preferably, the mounting base is fixed to the chamber floor by bolts.

[0021] Preferably, a monitoring mechanism is also installed on the chamber, the monitoring mechanism including a passing point sensor and a material drop sensor;

[0022] The point-passing sensor is located below the chamber and is used to detect whether the skip has passed the detection point;

[0023] The material drop sensor is located above the chamber and is used to detect whether there is still material falling.

[0024] Preferably, a controller is also provided in the chamber, and the control end of the first hydraulic cylinder, the control end of the second hydraulic cylinder, the over-point sensor, and the material drop sensor are all connected to the controller via signal cables.

[0025] Preferably, the clamps are arranged at equal intervals around the perimeter, and a slide rail area is formed between adjacent clamps;

[0026] The ends of the first chain and the ends of the second chain are staggered in different slide rail areas.

[0027] Preferably, the length of the first chain is greater than the length of the second chain.

[0028] Preferably, the outer contour of the buffer block is spherical, and the buffer block is made of stainless steel.

[0029] The beneficial effects of this invention are as follows:

[0030] This invention proposes a skip anti-impact device. By opening a chamber in the side wall of the well shaft, the drive mechanism is set inside the chamber. The drive mechanism drives the buffer mechanism to move above the skip to intercept and buffer the material. At the same time, the drive mechanism drives the buffer mechanism to disengage from above the skip, so that the skip can continue to move upward to transport the material.

[0031] By adding a buffer mechanism, the falling speed of the material is reduced after passing through the first chain, the second chain, and the buffer block. The material is crushed by impact with the buffer block, and the particle size of the material is relatively smaller. Ultimately, the impact of the material on the bottom plate of the skip is reduced, the wear of the skip is slowed down, and the service life of the skip is extended. Compared with adding buffer plates and other structural components inside the skip, the device of this invention is independent of the skip, does not increase the weight of the skip itself, and does not increase the power consumption of moving the skip.

[0032] By adding a monitoring mechanism, passing sensors and material drop sensors are arranged around the chamber. When the passing sensor detects that the skip has passed the detection point, it transmits the information to the controller. The controller then controls the drive mechanism to extend the buffer mechanism above the skip and begin conveying material into the skip. When the material drop sensor does not detect material falling for a period of time, it transmits the information to the controller. The controller then controls the drive mechanism to move the buffer mechanism away from the skip and the shaft, and the skip moves upward to convey material. The structure of this invention is relatively simple, and subsequent maintenance and replacement are also relatively convenient. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the assembly position of the present invention;

[0034] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0035] Figure 3 This is a schematic diagram of the drive mechanism of the present invention;

[0036] Figure 4This is a schematic diagram of the support ring and support hook of the present invention;

[0037] Figure 5 This is a front view of the buffer mechanism of the present invention;

[0038] Figure 6 This is a partial structural diagram of the buffer mechanism of the present invention. Figure 1 ;

[0039] Figure 7 This is a partial structural diagram of the buffer mechanism of the present invention. Figure 2 ;

[0040] Figure 8 This is a schematic diagram showing the connection relationship between the first chain and the assembly outer ring of the present invention;

[0041] Figure 9 This is a schematic diagram showing the connection relationship between the second chain and the inner assembly ring of the present invention;

[0042] Among them, 11-cave chamber, 12-bucket;

[0043] 2-Drive mechanism: 21-Assembly base, 22-Supporting upright, 221-First hydraulic cylinder, 23-First support arm, 231-Second hydraulic cylinder, 24-Second support arm; 25-Supporting ring, 251-Supporting hook;

[0044] 3-Buffer mechanism: 311-Assemble outer ring, 312-Assemble inner ring, 313-Clamp, 321-First chain, 322-Second chain, 33-Buffer block;

[0045] Monitoring components: 41-Pass point sensor, 42-Discharge sensor. Detailed Implementation

[0046] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] Combination Figures 1 to 9As shown, the present invention proposes a skip anti-impact device, which mainly includes structural components such as a drive mechanism 2, a buffer mechanism 3 and a monitoring mechanism, to buffer the impact of falling materials on the skip 12, so as to delay the wear of the skip 12 and extend the service life of the skip 12.

[0049] like Figure 1 As shown, a chamber 11 is provided on the side wall of the well shaft for housing structural components such as the drive mechanism 2 and the buffer mechanism 3.

[0050] Combination Figures 1 to 4 As shown, the drive mechanism 2 is used to move the buffer mechanism 3, causing the buffer mechanism 3 to move above or detach from the top of the skip 12. After the buffer mechanism 3 moves above the skip 12, it buffers the falling material. The drive mechanism 2 mainly includes structural components such as an assembly base 21, a support rod 22, a first hydraulic cylinder 221, a first support arm 23, a second support arm 24, a second hydraulic cylinder 231, and a support ring 25.

[0051] like Figure 1 As shown, the mounting base 21 is fixed to the ground of the chamber 11 with bolts, ensuring stability during operation. The support rod 22 is vertically mounted on the mounting base 21. The first support arm 23 is a hollow structure; one end of the first support arm 23 is hinged to the top of the support rod 22, and the other end is open. One end of the second support arm 24 is located inside the first support arm 23, and the other end is fixedly connected to the support ring 25. The cylinder body of the first hydraulic cylinder 221 is hinged to the support rod 22, and the telescopic rod of the first hydraulic cylinder 221 is hinged to the first support arm 23. The first hydraulic cylinder 221 can push the first support arm 23 to swing relative to the support rod 22. The cylinder body of the second hydraulic cylinder 231 is hinged to the first support arm 23, and the telescopic rod of the second hydraulic cylinder 231 is hinged to the second support arm 24. The second support arm 24 can move along the extension direction of the inner wall of the first support arm 23 under the drive of the second hydraulic cylinder 231, and at the same time drive the support ring 25 at the end of the second support arm 24 to move.

[0052] Combination Figure 3 and Figure 4 As shown, the support ring 25 has a ring-shaped structure and is mainly used to lift and support the buffer mechanism 3. Multiple support hooks 251 are fixedly connected to the bottom of the support ring 25. These hooks are symmetrically and evenly spaced at the bottom of the support ring 251. The ends of the support hooks 251 can extend into the middle of the outer ring 311 and the inner ring 312, allowing the outer ring 311 to overlap with the support hooks 251.

[0053] Combination Figures 5 to 9As shown, the buffer mechanism 3 is mainly used to buffer the falling material to reduce the impact of the material on the skip 12. The buffer mechanism 3 includes structural components such as an assembly ring, chains, and buffer blocks 33. The outer contour of the assembly ring is circular, and multiple clamps 313 are arranged at equal intervals on the assembly ring. A set of chains is set between adjacent clamps 313. Multiple sets of chains are connected to the assembly ring, with the top of the chains connected to the assembly ring and the bottom ends of the multiple sets of chains connected together. The assembly ring includes an outer assembly ring 311 and an inner assembly ring 312, and the chains include a first chain 321 and a second chain 322. Figure 6 As shown, the outer contours of both the outer ring 311 and the inner ring 312 are annular. The diameter of the outer ring 311 is larger than the diameter of the inner ring 312, and the inner ring 312 is disposed inside the outer ring 311. The outer ring 311 and the inner ring 312 are parallel and coplanar, and are connected and fixed together by multiple clamps 313, which enhances the overall stability. Figure 6 As shown, the clamps 313 are evenly arranged around the perimeter, and a slide rail area is formed between adjacent clamps 313. The chain can slide on the slide rail area, which can better buffer the falling material.

[0054] Combination Figure 7 and Figure 8 As shown, multiple sets of first chains 321 are connected to the outer ring 311. The top ends of the first chains 321 are connected to the outer ring 311, and the bottom ends of the multiple sets of first chains 321 are connected. (This is in conjunction with...) Figure 7 and Figure 9 As shown, multiple sets of second chains 322 are connected to the inner ring 312. The top ends of the second chains 322 are connected to the inner ring 312, and the bottom ends of the multiple sets of second chains 322 are connected. The length of the first chain 321 is greater than the length of the second chain 322. (This is in conjunction with...) Figures 8 to 9 As shown, the ends of the first chain 321 and the second chain 322 are staggered in different slide rail areas. This arrangement allows the material to be intercepted by the second chain 322 first and then by the first chain 321, which can reduce the falling speed of the material and reduce the impact on the skip 12.

[0055] like Figures 5 to 9 As shown, buffer blocks 33 are fixedly connected to the middle positions of both the first chain 321 and the second chain 322. The outer contour of the buffer block 33 is spherical, and the buffer block 33 is made of stainless steel. By adding the spherical buffer block 33, the falling material collides with the buffer block 33, causing the buffer block 33 to swing, transferring part of the material's kinetic energy into the kinetic energy and frictional internal energy of the buffer block 33. At the same time, the material can be crushed by impacting the buffer block 33, reducing the particle size of the material and also reducing the impact of the falling material on the skip 12.

[0056] By adding a buffer mechanism 3, the material is buffered and intercepted by the first chain 321, the second chain 322, and the buffer block 33, reducing the material's falling speed. Simultaneously, due to the impact of the material with the buffer block 33, the particle size of the material also becomes relatively smaller. By changing the material's falling speed and mass, the impact on the bottom plate of the skip 12 is ultimately reduced, delaying the wear of the skip 12 and extending its service life. Compared to adding a buffer plate inside the skip 12, the device of this invention is independent of the skip 12, does not increase the weight of the skip 12 itself, and does not increase the power consumption of moving the skip 12. Furthermore, this device can selectively increase the number and length of chains, adapting different chains and buffer blocks to skips of different sizes.

[0057] Combination Figure 1 As shown, a monitoring mechanism is also installed inside the chamber 11, including a passing sensor 41, a material drop sensor 42, and a controller. The passing sensor 41 is located below the chamber 11 and is used to detect whether the skip 12 has passed the detection point. The material drop sensor 42 is located above the chamber 11 and is used to detect whether there is still material falling. The control terminals of the first hydraulic cylinder 221 and the second hydraulic cylinder 231, the passing sensor 41, and the material drop sensor 42 are all connected to the controller via signal cables. When the over-point sensor 41 detects that the skip has passed the detection point, it transmits the information to the controller. The controller then controls the second hydraulic cylinder 231 of the drive mechanism 2 to extend and extend the buffer mechanism 3 to the top of the skip 12. Next, the controller controls the first hydraulic cylinder 221 of the drive mechanism 2 to retract, causing the first support arm 23 to swing downward. The buffer mechanism 3 presses against the edge of the feed inlet of the skip 12 and begins to convey material into the skip 12. When the material drop sensor 42 does not detect material falling for 5 seconds, it transmits the information to the controller. The controller then controls the first hydraulic cylinder 221 of the drive mechanism 2 to extend and lift the first support arm 23, causing the buffer mechanism 3 to detach from the skip 12. The second hydraulic cylinder 231 then retracts, causing the buffer mechanism 3 to leave the skip 12 and the shaft. The skip 12 then moves upward to convey material.

[0058] This invention proposes a skip impact protection device. By opening a chamber 11 in the side wall of the well shaft, a drive mechanism 2 is set inside the chamber 11. The drive mechanism 2 drives a buffer mechanism 3 to move above the skip 12 to buffer and intercept falling materials. At the same time, the drive mechanism 2 drives the buffer mechanism 3 to disengage from above the skip 12, allowing the skip 12 to continue moving upward to transport materials. By adding the buffer mechanism 3, the material passes through the first chain 321, the second chain 322, and the buffer block 33, which reduces the material velocity and the particle size, thereby reducing the energy of the final impact on the bottom plate of the skip 12 and delaying the wear of the skip 12. Compared to adding a buffer plate inside the skip 12, the device of this invention is independent of the skip, does not increase the weight of the skip itself, and does not increase the power consumption of moving the skip.

[0059] Of course, the above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the inventive concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention and should be protected by the present invention.

Claims

1. A skip anti-impact device, characterized in that, Includes a buffer mechanism and a drive mechanism; The buffer mechanism includes an assembly ring, a chain, and a buffer block; The outer contour of the assembly ring is circular, and multiple clamps are arranged at equal intervals on the assembly ring. A set of chains is set between adjacent clamps. Multiple sets of chains are connected to the assembly ring, and the top of the chains is connected to the assembly ring. The bottom ends of the multiple sets of chains are connected to each other. The buffer block is fixedly connected to the middle position of each chain; A chamber is provided on the side wall of the well shaft, and the drive mechanism is located in the chamber; the drive mechanism is connected to the assembly ring, and the drive mechanism is used to move the buffer mechanism above the skip or to disengage the buffer mechanism from above the skip; The assembly ring includes an outer assembly ring and an inner assembly ring, and the chain includes a first chain and a second chain; The outer and inner rings of the assembly are both circular in shape. The diameter of the outer ring is larger than that of the inner ring. The outer and inner rings are coplanar. The inner ring is located inside the outer ring. The outer and inner rings are connected and fixed by multiple clamps. The outer assembly ring is connected to multiple sets of first chains, the top of the first chains is connected to the outer assembly ring, and the bottom ends of the multiple sets of first chains are connected to each other; the inner assembly ring is connected to multiple sets of second chains, the top of the second chains is connected to the inner assembly ring, and the bottom ends of the multiple sets of second chains are connected to each other. The buffer block is fixedly connected to the middle position of both the first chain and the second chain; The drive mechanism includes an assembly base, a support column, a first hydraulic cylinder, a first support arm, a second support arm, a second hydraulic cylinder, and a support ring; The support pole is vertically mounted on the assembly base; the first support arm is a hollow structure, with one end of the first support arm hinged to the top of the support pole and the other end of the first support arm open; one end of the second support arm is located inside the first support arm, and the other end of the second support arm is fixedly connected to the support ring; multiple support hooks are fixedly connected to the bottom of the support ring; The outer ring of the assembly overlaps the support hook; The cylinder body end of the first hydraulic cylinder is hinged to a support column, and the telescopic rod of the first hydraulic cylinder is hinged to a first support arm. The cylinder body of the second hydraulic cylinder is connected to the first support arm, and the telescopic rod of the second hydraulic cylinder is connected to the second support arm.

2. The skip anti-impact device according to claim 1, characterized in that, Multiple support hooks are installed at equal intervals at the bottom of the support ring.

3. The skip anti-impact device according to claim 1, characterized in that, The mounting base is fixed to the chamber floor with bolts.

4. The skip anti-impact device according to claim 1, characterized in that, The chamber is also equipped with a monitoring mechanism, which includes a passing point sensor and a material drop sensor; The point-passing sensor is located below the chamber and is used to detect whether the skip has passed the detection point; The material drop sensor is located above the chamber and is used to detect whether there is still material falling.

5. The skip anti-impact device according to claim 4, characterized in that, The chamber is also equipped with a controller. The control ends of the first hydraulic cylinder, the second hydraulic cylinder, the over-point sensor, and the material drop sensor are all connected to the controller via signal cables.

6. The skip anti-impact device according to claim 1, characterized in that, The clamps are arranged at equal intervals around the perimeter, and a slide rail area is formed between adjacent clamps; The ends of the first chain and the ends of the second chain are staggered in different slide rail areas.

7. The skip impact protection device according to claim 1, characterized in that, The length of the first chain is greater than the length of the second chain.

8. The skip anti-impact device according to claim 1, characterized in that, The outer contour of the buffer block is spherical, and the buffer block is made of stainless steel.

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