Ore lifting device for mine

Abstract

The utility model provides an ore lifting device for a mine, which comprises an outer protection side plate, the outer protection side plate is obliquely and fixedly arranged on a support in parallel, the inner side of the outer protection side plate is fixedly connected with a conveying platform through a fixing side plate, a lifting groove is arranged in the middle of the conveying platform, and the conveying platform is slidably connected with a lifting push plate through a guide rail. The lifting push plates are connected with lifting chains, the lifting chains are all assembled on chain wheels, every two chain wheels are coaxially installed together, rotating shafts are rotationally installed at the ends of the outer protection side plates and the conveying platform, and one rotating shaft is fixed to the output end of a driving component fixedly installed outside the outer protection side plates. The friction conveying mode of a traditional belt elevator is abandoned, the problems of belt abrasion and looseness are avoided, and it is ensured that power output is stable and operation is reliable. Only the chain and other components need to be maintained conventionally in daily life, and the downtime is greatly shortened. Meanwhile, the unique design of the lifting gully and the push plate can adapt to various ores.

Description

TECHNICAL FIELD

[0001] The utility model belongs to ore hoisting technical field especially relates to a mine ore hoisting device. BACKGROUND

[0002] In the mining operation, the ore hoisting link plays a key role in production efficiency and cost control. There are various types of ore hoisting machines, among which the belt hoisting machine has been widely used in the mining field due to its relatively low initial investment cost and relatively simple structure. The traditional belt hoisting machine mainly relies on the friction between the belt and the ore to realize the conveying, and some vertical group plates are compounded on the surface of the belt to enhance the conveying effect. However, the belt is generally made of elastic polymer material, and this material characteristic exposes many drawbacks in the long-term mining operation environment.

[0003] The shape of the ore mined in the mine is different, and the size is different. In the continuous hoisting operation process, the ore and the belt are frequently and severely rubbed, which causes a large amount of wear on the surface of the belt. At the same time, due to the fact that the belt needs to bear the weight of the ore for a long time, the internal structure gradually changes, the elasticity decreases, and then the relaxation phenomenon appears. The wear and relaxation of the belt not only seriously affect its service life, increase the frequency and cost of replacing the belt, but also cause the friction between the belt and the ore to be unstable, which causes the conveying and hoisting effect to be greatly reduced. For example, in some large mines, the belt wear and relaxation problem frequently occurs, and the belt needs to be replaced several times every month, which not only causes high material cost, but also greatly reduces the overall production efficiency of the mine during the equipment downtime for replacing the belt, causing significant economic losses.

[0004] Therefore, it is necessary to invent a mine ore hoisting device. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the above technical problems, the utility model provides a mine ore hoisting device, which comprises an outer protection side plate, a support, a fixed side plate, a conveying platform, a lifting ditch, a guide rail, a lifting push plate, a lifting chain, a sprocket and a driving part. The outer protection side plate is provided with two, and the two outer protection side plates are fixedly installed on the support in parallel. The inner side of the two outer protection side plates is fixedly connected with the conveying platform through the fixed side plate. The conveying platform is provided with a lifting ditch in the middle. The conveying platform is slidably connected with a plurality of lifting push plates through the guide rail. Each lifting push plate is connected with two lifting chains. Each lifting chain is assembled on two sprockets. Each two sprockets are coaxially installed together. The shafts are rotatably installed at the end positions of the outer protection side plates and the conveying platform. Any end of one of the shafts is fixedly connected with the output end of the driving part fixedly installed outside one of the outer protection side plates.

[0006] Preferably, the conveying platform is arranged between the outer protective side plates, and a spacing required for mounting the fixed side plates, the lifting chains and the sprockets is arranged between the two outer protective side plates, and the fixed side plates do not interfere with the sprockets.

[0007] Preferably, the lifting grooves arranged on the conveying platform are recessed conveying channels formed by two mirror image inclined surfaces, and the lifting push plate can be driven by the two lifting chains and moved along the direction of the lifting grooves under the limitation of the guide rails.

[0008] Preferably, the two sides of the outer part of the conveying platform are correspondingly provided with ring-shaped guide rails, the lifting push plate can move along the closed loop type circular track of the ring-shaped guide rails, and the shape of the lifting push plate is matched with the lifting grooves.

[0009] Preferably, the two ends of the lifting push plate are respectively connected with the guide rails in a sliding mode and connected with the two lifting chains at different positions, and the lifting chains are located on the inner sides of the outer protective side plates.

[0010] Preferably, the lifting chains are connected with two sprockets on the same horizontal plane, the sprockets are provided in four, each two of the sprockets are coaxially arranged, and the two lifting chains and the four sprockets jointly form a lifting driving transmission mechanism, and the rotation shafts of the two sprockets are rotatably arranged on the outer protective side plates and the conveying platform, and the rotation shafts are fixedly connected with the output ends of the driving components arranged on the outer sides of the outer protective side plates.

[0011] Preferably, the protective conveying frame is fixedly arranged between the two outer protective side plates, the protective conveying frame comprises chain guards, protective outer plates, protective inner rods, sealing plates and a discharging area, the two chain guards are fixedly arranged on the inner sides of the two corresponding outer protective side plates, a plurality of protective outer plates are fixedly arranged between the two chain guards, a plurality of protective inner rods are fixedly arranged on the inner sides of the protective outer plates, the protective inner rods and one end of the protective conveying frame are fixedly connected with the sealing plates, and the middle area of the sealing plates is the discharging area.

[0012] Preferably, the chain guard is a "U"-shaped structure, the cross section of the chain guard is "L"-shaped, the inner side of each chain guard is provided with a corresponding chain, and the plurality of protective outer plates are arranged along the direction of the chain guard, wherein the protective inner rods between the two chain guards are "U"-shaped structures, and the cross sections of the protective inner rods are circular.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model discloses adopt the structure such as outer protection side plate, fixed side plate, cooperate with the lifting chain, sprocket and guide rail drive lifting push plate movement, completely abandon the traditional belt elevator to depend on the mode of friction conveying of belt and ore. The design of lifting push plate and lifting gully makes ore have stable support and push structure in the lifting process, avoids the dependence on the elastic high polymer material belt, fundamentally solves the wear and tear problem caused by long -term friction, greatly improves the stability and reliability of lifting device operation.

[0015] Compared with the traditional belt elevator, the utility model discloses not appear the problem of the decline of conveying and lifting effect caused by belt slackening. The driving transmission mechanism formed by the lifting chain and the sprocket can provide stable and continuous power output. The lifting push plate stably pushes the ore upward along the lifting gully under the precise limitation of the guide rail, ensuring the stability and efficiency of the ore lifting process and guaranteeing that the lifting effect does not obviously decrease under long-time operation. In addition, compared with the frequent belt replacement work of the traditional belt elevator, the lifting device of the utility model only needs to be regularly inspected and maintained, greatly reducing the downtime of the equipment caused by maintenance and improving the continuity and economic benefits of mine production.

[0016] The lifting gully of the utility model adopts a recessed conveying channel made of two mirror-image corresponding inclined surfaces, and cooperates with a lifting push plate with a shape that fits, to adapt to the lifting needs of ores of various shapes and sizes. Whether the ore is in the form of fine particles or large irregular blocks, it can smoothly rise along the lifting gully under the stable pushing of the lifting push plate, overcoming the difficulty of the traditional belt elevator in stably conveying irregularly shaped and large-sized ores.

[0017] The chain guard plate, protective outer plate and protective inner rod of the protective conveying frame constitute a multiple protection structure. The "U"-shaped structure of the chain guard plate can effectively block part of the ore splashing and prevent the entry or falling of large and small ores, not only avoiding the misentry of large and small ores, but also preventing the impact damage of the key components such as the lifting chain to the operation personnel, significantly improving the safety of equipment operation; the protective outer plate and the protective inner rod further enhance the overall protection strength, resist the impact of falling ore, and prolong the service life of the equipment. In addition, the overall structure rigidity of the protective conveying frame is maintained, the structure deformation caused by ore impact is avoided, and the continuous and efficient operation of the lifting device is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall structure schematic diagram of the protective conveying frame of the utility model not installed.

[0019] Figure 2 is the partial section structure schematic diagram of the utility model Figure 1 .

[0020] Figure 3 is the A place local amplification structure schematic diagram of the utility model Figure 1

[0021] Figure 4 is the whole structure schematic diagram of the utility model protective conveying frame after installation.

[0022] Figure 5 is the structure schematic diagram of the utility model protective conveying frame.

[0023] In the drawing:

[0024] Outer protection side plate 1, support 2, fixed side plate 3, conveying platform 4, lifting gully 5, guide rail 6, lifting push plate 7, lifting chain 8, chain wheel 9, driving part 10, protective conveying frame 11, chain guard 111, protective outer plate 112, protective inner rod 113, sealing plate 114, blanking area 115. DETAILED DESCRIPTION

[0025] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the embodiment of the utility model will be clearly and completely described below, obviously, the described embodiment is only a part of the embodiment of the utility model, not all. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor should belong to the protection scope of the utility model.

[0026] In the description of the embodiment, it should be explained that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawing, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "installation", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For the ordinary skill in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] As shown in the accompanying Figure 1 to the accompanying Figure 5 :​

[0028] The utility model provides a kind of ore lifting device for mine, including outer protection side plate 1, support 2, fixed side plate 3, conveying platform 4, lifting gully 5, guide rail 6, lifting push plate 7, lifting chain 8, sprocket 9 and drive component 10, the outer protection side plate 1 is provided with two, two the outer protection side plate 1 is obliquely parallel fixedly installed on support 2, two the outer protection side plate 1 inside is fixedly connected by fixed side plate 3 with conveying platform 4, and conveying platform 4 is provided with lifting gully 5 in the middle, the conveying platform 4 is slidably connected with several lifting push plate 7 by guide rail 6, each lifting push plate 7 is connected with two lifting chain 8 respectively, each lifting chain 8 is assembled on two sprocket 9, and each sprocket 9 is coaxially installed together, wherein the rotating shaft is rotatably installed at the end position of outer protection side plate 1 and conveying platform 4, and the output end of the drive component 10 fixedly installed outside one of the outer protection side plate 1 is fixed to any end of one of the rotating shafts.

[0029] Further, conveying platform 4 is provided between two outer protection side plates 1, outer protection side plate 1 is formed by high-strength steel plate welding, has good impact resistance and wear resistance, can resist the collision that ore can generate in lifting process. Outer protection side plate 1 is obliquely parallel fixedly installed on support 2, and support 2 is welded by rectangular steel pipe and provides stable support for the whole lifting device. The spacing of 200mm is reserved between outer protection side plate 1 and conveying platform 4, and the spacing is specially used for installing fixed side plate 3, lifting chain 8 and sprocket 9. Fixed side plate 3 is made of 45# steel plate with a thickness, and is fixedly connected with outer protection side plate 1 and conveying platform 4 by M16 high-strength bolt, to ensure firm installation and avoid interference with sprocket 9.

[0030] Further, the lifting gully 5 provided on the conveying platform 4 is a recessed conveying channel made of two mirror-image inclined surfaces. The angle of the inclined surface of the lifting gully 5 is optimized to 45°, and is made of wear-resistant manganese steel plates with a thickness, which can effectively withstand the pressure and friction force of the ore. The lifting push plate 7 can be driven by the two lifting chains 8 and limited by the guide rail 6 and move in the direction of the lifting gully 5. The two sides of the lifting push plate 7 are designed as wedge-shaped structures, and the wedge angle matches the angle of the inclined surface of the lifting gully 5, which facilitates better pushing of the ore. The lifting push plate 7 is made of high-strength alloy steel and is quenched on the surface. During movement, the lifting chain 8 drives the lifting push plate 7, and the guide rail 6 limits the lifting push plate 7, so that it always runs smoothly along the direction of the lifting gully 5, ensuring that the ore can be lifted smoothly along the predetermined channel.

[0031] Further, the outer two sides of the conveying platform 4 are provided with ring-shaped guide rails 6, the guide rails 6 adopt I-shaped structure, the material is 40Cr alloy steel, and the guide rails 6 are subjected to quenching and tempering treatment, thereby having good strength and toughness. The guide rails 6 can provide stable support and guidance for the lifting push plate 7. The lifting push plate 7 can move along the closed loop of the ring-shaped guide rails 6, and the shape of the lifting push plate 7 corresponds to the lifting ditch 5.

[0032] Further, the upper two ends of the lifting push plate 7 are respectively connected with the guide rails 6 in sliding mode, and are connected with two lifting chains 8 located at different positions, and the lifting chains 8 are located inside the outer protective side plates 1. The two ends of the lifting push plate 7 are fixedly installed with guide sliding blocks in a welding mode, the guide sliding blocks are made of polytetrafluoroethylene material, have good self-lubricating performance and wear resistance, and can reduce the friction between the guide sliding blocks and the guide rails 6. The guide sliding blocks and the guide rails 6 adopt clearance fit, and the fitting clearance is 0.5 mm, which can ensure that the lifting push plate 7 can slide flexibly on the guide rails 6, and also ensure the stability of the movement. The lifting chains 8 are selected from high-strength alloy steel roller chains, the model is C216A, and the chain pitch is 25.4 mm, which can withstand a large tensile force.

[0033] Further, the lifting chains 8 are connected with two sprockets 9 in the same horizontal plane, the sprockets 9 are provided in total four, and each two sprockets 9 are coaxially installed. The sprockets 9 are forged from 45# steel, are subjected to normalizing treatment and tooth surface quenching, and the tooth surface hardness reaches HRC50-55. The pitch diameter of the sprockets 9 is 300 mm, the number of teeth is 24, and the pitch is 25.4 mm, which matches the parameters of the lifting chains 8. The two lifting chains 8 and the four sprockets 9 jointly constitute a lifting drive transmission mechanism, the shafts are made of 40Cr alloy steel, the diameter is 50 mm, the two ends of the two shafts (the shafts on which the sprockets 9 are installed) are installed on the outer protective side plates 1 and the conveying platform 4 through tapered roller bearings, the model of the tapered roller bearings is 30210, and the tapered roller bearings can withstand a large radial and axial load. Any end of one of the shafts is fixedly connected with the output end of a driving component 10 fixedly installed outside one of the outer protective side plates 1, the driving component 10 is selected from a three-phase asynchronous motor, the model is Y160M-4, the power is 11 kW, and the driving component 10 is connected with the shaft through a flexible coupling, thereby providing stable power output for the lifting drive transmission mechanism, and ensuring the normal operation of the lifting device.

[0034] Further, the two outer protective side plates 1 are fixedly installed with a protective conveying frame 11, which is an important component for ensuring the safe conveying of ores and the protection of equipment. The overall structure of the protective conveying frame 11 is composed of a chain guard plate 111, a protective outer plate 112, a protective inner rod 113, a sealing plate 114, and a discharging area 115. The chain guard plate 111 is made of Q235B steel plate and is fixedly connected to the inner side of the outer protective side plate 1 by M12 countersunk head bolts. The protective outer plate 112 is made of patterned steel plate, which can effectively prevent ores from falling and has good impact resistance. It is fixed between the chain guard plates 111 by welding to form a stable protective barrier. The protective inner rod 113 is made of seamless steel pipe and is also fixed to the inner side of the protective outer plate 112 by welding. One end of the protective inner rod 113 and the protective conveying frame 11 are fixedly connected to the sealing plate 114. The middle area of the sealing plate 114 is the discharging area 115.

[0035] Further, the chain guard plate 111 is designed in a unique "U" shape, with a "L" shaped cross section. This design can tightly wrap around the lifting chain 8, effectively preventing foreign matter such as ores and gravel from entering the meshing area of the chain 8 and the sprocket 9. The protective outer plates 112 are arranged in line along the length direction of the chain guard plate 111. The protective inner rod 113 is in the shape of "U" and has a circular cross section design that can evenly disperse the impact force from the ores. The middle area of the sealing plate 114 constitutes the discharging area 115 of the ores, ensuring that the ores can smoothly fall to the designated position, while avoiding the accumulation of ores affecting the normal operation of the lifting device.

[0036] The working principle is as follows: when it is necessary to lift and convey ores, the three-phase asynchronous motor Y160M-4 in the driving component 10 is powered on and started. The power is transmitted to the rotating shaft through the elastic coupling. The rotating shaft drives the coaxially installed sprocket 9 to rotate, thereby driving the lifting chain 8 to circulate on the closed path formed by the four sprockets 9. In the process of movement of the lifting chain 8, the lifting push plate 7 connected thereto moves along the ring-shaped guide rail 6 on the outside of the conveying platform 4 in a closed loop trajectory.

[0037] In the process of movement of the lifting push plate 7, its wedge-shaped structure fits with the 45° inclined surface of the lifting ditch 5, and starts to push the ores in the lifting ditch 5 upward along the lifting ditch 5 provided on the conveying platform 4. In the process of pushing the ores by the lifting push plate 7, the guide rail 6 limits the lifting push plate 7 to ensure that it always runs smoothly along the direction of the lifting ditch 5, avoiding deviation.

[0038] With the continuous operation of the lifting chain 8, the lifting push plate 7 pushes the ore to gradually rise along the lifting ditch 5 until reaching the discharge position at the top of the conveying platform 4, and the ore is discharged from the lifting ditch 5 under the action of gravity. Then, the lifting push plate 7 continues to move with the lifting chain 8 to return to the bottom of the lifting ditch 5 and start a new round of ore lifting and conveying work, and the cycle is repeated to realize continuous lifting and conveying of the ore.

[0039] During the lifting and conveying of the ore, under the combined action of various structures of the protective conveying frame 11, on the one hand, the chain guard 111 protects the lifting chain 8 from impact of the ore and invasion of foreign matters; on the other hand, the protective structure composed of the protective outer plate 112 and the protective inner rod 113 prevents the ore from splashing and ensures the safety of operation. The discharging area 115 formed in the middle area of the sealing plate 114 provides a precise discharging channel for the ore, so that the ore can fall in an orderly manner, and cooperates with other components of the lifting device to realize efficient and safe conveying of the ore.

[0040] The technical scheme of the utility model, or the technical scheme inspired by the technical scheme of the utility model by those skilled in the art, designs similar technical schemes, and achieves the above technical effects, which falls within the protection scope of the utility model.

Claims

1. A mine ore hoisting device characterized by comprising: The utility model provides a kind of lifting device, including outer protection side plate (1), support (2), fixed side plate (3), conveying platform (4), lifting ditch (5), guide rail (6), lifting push plate (7), lifting chain (8), sprocket (9) and drive component (10), the outer protection side plate (1) is provided with two, two the outer protection side plate (1) is obliquely parallel fixed installation on the support (2), two the outer protection side plate (1) inside is fixedly connected by fixed side plate (3) with conveying platform (4), conveying platform (4) is provided with lifting ditch (5) in middle, the conveying platform (4) is slidably connected with several lifting push plate (7) by guide rail (6), each lifting push plate (7) is connected with two lifting chain (8) respectively, each lifting chain (8) is equipped on two sprocket (9), every two sprocket (9) is coaxially installed together, wherein the rotating shaft is rotatably installed in the end position of outer protection side plate (1) and conveying platform (4), and any end of one rotating shaft is fixed with the output end of drive component (10) fixedly installed outside one of outer protection side plate (1).

2. An ore hoisting device for mines as claimed in claim 1, characterized in that: The outer protection side plate (1) is provided with conveying platform (4) between the two, and the distance required for installing fixed side plate (3), lifting chain (8) and sprocket (9) is provided between the two, and the fixed side plate (3) and the sprocket (9) do not interfere with each other.

3. An ore hoisting device for a mine as claimed in claim 2, characterized in that: The lifting ditch (5) provided on the conveying platform (4) is a recessed conveying channel made of two mirror image inclined surfaces, and the lifting push plate (7) can be driven by the two lifting chains (8) and limited by the guide rail (6) to move along the direction of the lifting ditch (5).

4. An ore hoisting device for a mine as claimed in claim 3, characterized in that: Corresponding ring-shaped guide rails (6) are provided on the outer sides of the conveying platform (4), the lifting push plate (7) can move along the closed loop trajectory of the ring-shaped guide rails (6), and the shape of the lifting push plate (7) corresponds to the lifting ditch (5).

5. An ore hoisting device for a mine as claimed in claim 4, characterized in that: The two ends of the lifting push plate (7) are slidably connected with the guide rails (6) and the lifting chains (8) at two different positions, respectively, and the lifting chains (8) are located inside the outer protection side plate (1).

6. An ore hoisting device for a mine as claimed in claim 5, characterised in that: The lifting chain (8) is connected with two sprockets (9) on the same horizontal plane, and the sprockets (9) are provided in four, wherein every two sprockets (9) are coaxially installed, and the two chains (8) and the four sprockets (9) jointly constitute a lifting drive transmission mechanism, wherein the rotating shafts with two sprockets (9) are rotatably installed in the outer protection side plate (1) and the conveying platform (4), and any end of the rotating shafts is fixed with the output end of the drive component (10) fixedly installed outside one of the outer protection side plate (1).

7. An ore hoisting device for mines as claimed in claim 6, characterized in that: Two said outer protective side plates (1) between the fixed installation has the protection conveying frame (11), the protection conveying frame (11) includes chain guard (111), protective outer plate (112), protective inner rod (113), sealing plate (114) and unloading area (115), two said chain guard (111) respectively fixedly installed in two corresponding said outer protective side plate (1) inner side, two said chain guard (111) between the fixed installation has a plurality of said protective outer plate (112), protective outer plate (112) inner side fixedly installed with a plurality of said protective inner rod (113), protective inner rod (113) and protective conveying frame (11) one end are fixedly connected with sealing plate (114), sealing plate (114) middle area is unloading area (115).

8. An ore hoisting device for a mine as claimed in claim 7, characterized in that: The chain guard (111) is "U" type structure, and the section is "L" type. The inner side of each chain guard (111) is provided with a corresponding chain (8). A plurality of protective outer plates (112) are arranged along the direction of the chain guard (111). The protective inner rod (113) between the two chain guards (111) is "U" type structure, and the section is circular.

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