Excavating device for mining and construction method thereof

Abstract

The invention particularly relates to an excavating device for mining and a construction method thereof.The excavating device comprises an excavator frame, a machine arm and a first hydraulic telescopic rod, the machine arm and the first hydraulic telescopic rod are hinged to the front side of the excavator frame, the middle of the machine arm is connected through the telescopic end of the first hydraulic telescopic rod, and the front end of the machine arm is rotationally connected with a movable support; an excavating assembly is movably connected to the front end of the movable support, and an upper arc-shaped cover and a lower arc-shaped cover are installed on the upper side and the lower side of the movable support on the rear side of the excavating assembly respectively and used for blocking dispersion of mineral aggregate when the excavating assembly excavates the mine. In other words, when the two side digging rollers rotate anticlockwise and upwards to dig the mineral aggregate, the reverse transmission mechanism drives the breaking roller in the middle to rotate clockwise and downwards synchronously to crush and dig the mineral aggregate, so that different knob digging forces and digging directions are generated, the mineral aggregate is more effectively excavated, the structure of the mineral aggregate is efficiently damaged, and the working efficiency is improved. Therefore, the mineral aggregate is more easily excavated, and the excavation speed is increased.

Description

Technical Field

[0001] The present invention specifically relates to an excavation device for mining and a construction method thereof, and relates to the technical field of excavation equipment. Background Art

[0002] In the crushing and excavation process of mining, the current excavation device lacks effective gathering measures when excavating mineral materials. For example, the traditional excavator bucket has a single excavation structure, and simply digs the mineral materials out of the ore body during the excavation action. Due to the downward impact force during excavation and the physical characteristics of the mineral materials, the mineral materials are easy to scatter around, especially when digging into the mineral materials at high places. This scattered state makes the subsequent collection work complicated. Workers need to spend a lot of time to collect mineral materials, and when transporting and loading, the scattered mineral materials cannot be efficiently loaded or transported by the conveying equipment (such as conveyor belts or transport mine cars). The flexibility of use is low, and the excavation, transportation and loading process will also be intermittent, affecting the continuity of the mining operation, thereby reducing the overall mining efficiency. This not only increases the mining cost, but also prolongs the mining cycle, affecting the economic benefits of mining enterprises; At the same time, the existing mining excavation devices do not have effective dust control measures when performing crushing and excavation operations. During the excavation process, a large amount of dust will be generated due to the crushing and friction of the ore materials. This dust not only causes serious pollution to the air quality at the work site and endangers the health of workers. For example, long-term inhalation of dust may lead to occupational diseases such as pneumoconiosis, but also affects the vision of the work, reducing work safety and efficiency. Therefore, it is necessary for our company to propose an excavation device for mining and its construction method to improve the existing technology. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention aims to provide an excavation device for mining and a construction method thereof, which provide a more flexible and efficient solution for the composite plate extrusion field to solve the problems mentioned in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention is realized by the following technical scheme: an excavation device for mining, comprising an excavator frame, an arm and a first hydraulic telescopic rod hinged on the front side of the excavator frame, and the middle part of the arm is connected through the telescopic end of the first hydraulic telescopic rod, the front end of the arm is rotatably connected to a movable bracket, the front end of the movable bracket is movably connected to an excavation component, and the upper and lower sides of the movable bracket on the rear side of the excavation component are respectively installed with an upper arc cover and a lower arc cover, which are used to block the dispersion of the mineral materials when the excavation component is excavating; Vertical poles are installed vertically in the middle of the left and right sides of the movable bracket, and the machine arm is hinged with two second hydraulic telescopic rods which are respectively rotatably connected with the two vertical poles, so as to control the movable bracket and the excavation assembly to rotate up and down; A material guide assembly is provided at the lower side of the lower arc cover, which is used to guide and collect the mineral materials blocked by the upper arc cover and the lower arc cover to the rear side; A water spray assembly is provided on the upper side of the upper arc-shaped cover, which is used to wet the mineral materials and reduce dust when the excavation assembly is digging materials; The excavation assembly includes a breaking roller rotatably arranged on the front side of a movable bracket and side digging rollers movably arranged on both sides of the breaking roller. The two side digging rollers rotate counterclockwise upward to excavate mineral materials, while the breaking rollers rotate clockwise downward to crush and excavate mineral materials. The upper arc cover and the lower arc cover are respectively covered on the rear half of the breaking roller and the side digging roller.

[0005] Further improvements based on the above technical solution are: a rotating shaft is rotatably installed at the front end of the movable bracket, and driving motors for driving the rotating shaft to rotate are respectively installed on the left and right sides of the movable bracket, the breaking roller and the two side digging rollers are all mounted on the rotating shaft, wherein the rotating shaft directly drives the side digging roller to rotate counterclockwise, and a reverse transmission mechanism is provided in the middle of the rotating shaft, and the breaking roller is driven to rotate clockwise in the opposite direction through the reverse transmission mechanism.

[0006] Further improvements based on the above technical solution are: two side mounting plates are horizontally fixed on the front side of the movable bracket, the breaking roller and the reverse transmission mechanism are arranged between the two side mounting plates, the outer sides of the two side mounting plates are respectively fixed with outer circular protrusions, and are rotatably embedded in the opposite sides of the two side digging rollers through the outer circular protrusions, so as to strengthen the rotation support strength of the side digging rollers, and the opposite sides of the two side mounting plates are fixed with inner circular convex edges, and the inner circular convex edges are rotatably embedded in the two side surfaces of the breaking rollers, so as to strengthen the rotation support strength of the breaking rollers.

[0007] Further improvements based on the above technical solution are: the breaking roller includes a polygonal sleeve and a plurality of breaking plates sleeved on the outside of the polygonal sleeve, and a plurality of front convex teeth are respectively provided on the outside of the breaking plates, and side rotating circular grooves are provided on both sides of the polygonal sleeve, and the inner circular convex edge is adapted to rotate and embed in the inner side of the side rotating circular groove to support the rotation of the breaking roller.

[0008] Further improvements based on the above technical solution are: the reverse transmission mechanism includes a central gear fixedly mounted in the middle of the rotating shaft, and a planetary gear rotatably mounted between two side mounting plates through a shaft rod, the planetary gears are provided in plurality and are distributed in an annular array on the outside of the central gear and mesh with each other for transmission, an inner gear ring is fixedly mounted on the inner side of the polygonal sleeve, and the outer sides of each planetary gear mesh with the inner gear ring for transmission, so as to drive the polygonal sleeve and the breaker to rotate in the reverse clockwise direction. Further improvements based on the above technical solution are: the outer ring array of the side digging roller has a plurality of integrated digging blocks, the outer edges of the digging blocks are provided with shovel teeth, and the upper middle side of the digging blocks is provided with a digging groove. When the side digging roller rotates upward counterclockwise, the shovel teeth can break into the mineral material and place the mineral material in the digging groove, and rotate and transport it to the upper arc cover and the lower arc cover on the rear side.

[0009] Further improvements based on the above technical solution are: the material guiding assembly includes a material guiding hopper locked on the lower side of the lower arc-shaped cover, and the bottom of the material guiding hopper is connected and locked with a bellows, the bellows is connected with the inner side of the lower arc-shaped cover through the material guiding hopper, a metal ring is fastened to the end of the bellows, and a third hydraulic telescopic rod is hinged on the upper side of the metal ring, the other end of the third hydraulic telescopic rod is rotatably connected to the lower side of the machine arm, a fourth hydraulic telescopic rod is hinged on the middle part of the third hydraulic telescopic rod, and is rotatably connected to the lower side of the movable bracket through the fourth hydraulic telescopic rod, so as to adjust and control the front and rear material guiding positions of the bellows and the metal ring.

[0010] Further improvements based on the above technical solution are: the water spray assembly includes a diversion water spray pipe installed on the upper side of the upper arc cover and a water storage tank installed on the upper side of the excavator frame, the water storage tank is equipped with a water pump, the water pump is connected to a water pipe, and is connected to one side of the water inlet end of the diversion water spray pipe through the water pipe, and the diversion water spray pipe is equipped with multiple atomizing nozzles arranged toward the front side.

[0011] The further improvement based on the above technical scheme is that: a plurality of duct assemblies for guiding and conveying water pipes are installed on the upper side of the machine arm, and the duct assembly includes two side baffles arranged at a relatively interval, and the opposite sides of the two side baffles are rotatably connected to an upper clamping wheel and a lower clamping wheel arranged relatively up and down through an axle rod, and a conveying motor for driving the lower clamping wheel to rotate is installed on one side of one of the side baffles, and a slide groove is vertically opened in the middle part of the upper side of the two side baffles, a slider is slidably arranged on the inner side of the slide groove, and the upper clamping wheel is rotatably installed in the middle part of the two sliders through the axle rod, and an electric telescopic rod for pushing and pulling the slider to rise and fall is installed on the upper side of the side baffle, and the water pipe passes through the middle part of the upper clamping wheel and the lower clamping wheel, and when the electric telescopic rod pushes the upper clamping wheel to convey downward, the water pipe is rolled on the upper side of the lower clamping wheel for limiting the position, and the rotation of the lower clamping wheel is used to convey the water pipe back and forth.

[0012] A construction method for an excavation device for mining, characterized in that it comprises the following steps: First, it is necessary to move the excavator frame to the vicinity of the ore, and control the first hydraulic telescopic rod to lift the machine arm, so that the excavation component on the movable bracket is lifted to the required height, and control the extension and retraction of the second hydraulic telescopic rod according to the on-site environment to push and pull the angle of the rotating movable bracket, so that the breaker roller and two side digging rollers of the excavation component can contact the ore, and the two side digging rollers rotate upward counterclockwise, so that the side digging rollers dig upward into the coal mine on the front side and transport it backward to the upper arc cover and the lower arc cover. At the same time, the breaker roller can rotate clockwise synchronously between the two side digging rollers, and generate different torsional excavation forces and digging directions with the side digging rollers, so that the ore in the middle is crushed from the bottom and swept into the lower arc cover, and in the excavation process, the water spray assembly on the upper side of the upper arc cover is controlled according to demand to spray dust reduction, and when the ore enters the upper arc cover and the lower arc cover, it will be concentrated and fall into the material guide assembly, and the material guide assembly will be concentrated to the transport mine car or designated area at the rear side.

[0013] By adopting the above technical solution, the present invention has the following advantages: The present invention can control the first hydraulic telescopic rod to lift the machine arm, and control the second hydraulic telescopic rod to push, pull and rotate the angle of the movable bracket according to the on-site environment, so that the excavation component on the movable bracket can be lifted to the required height and angle, thereby improving the use flexibility of the excavation component; The breaker rollers and side digging rollers in the excavation assembly adopt a specific rotation mode, that is, the two side digging rollers rotate upward counterclockwise to dig the mineral materials, while the middle breaker roller is driven by the reverse transmission mechanism to rotate downward clockwise to break and dig the mineral materials. The different torsional digging forces and digging directions generated in this way help to dig the mineral materials more effectively, efficiently destroy the structure of the mineral materials, make the mineral materials easier to dig out, and thus increase the excavation speed; Moreover, the digging blocks, shovel teeth and digging groove structures of the outer ring of the side digging roller can break into the ore when rotating and place the ore in the digging groove to rotate and transport it to the rear side. The setting of the digging groove can effectively hold more ore, which is not easy to fall, and is also more conducive to digging the coal mine above the front side, thereby improving the digging and transportation efficiency; Two side mounting plates are arranged on the front side of the movable bracket. The outer circular protrusion on the outer side of the side mounting plate strengthens the rotation support strength of the side digging roller, while the inner circular protrusion can strengthen the rotation support strength of the breaker roller, thereby improving the stability and reliability of the excavation device. At the same time, it plays a good closing role on the side digging roller and the inside of the breaker roller, reduces the entry of external coal mine particles into the inside, and avoids affecting the transmission effect of the internal reverse transmission mechanism and other components. In addition, the two side mounting plates play a good rotation support role for the planetary gears of the reverse transmission mechanism, so that when the central gear meshes with the planetary gear and rotates, the planetary gear can mesh with the inner gear ring and rotate in the reverse direction, thereby ensuring that the breaker roller can rotate in the reverse direction. Moreover, the planetary gear and the inner gear ring can also play a good rotation support role for the entire polygonal shaft sleeve, distribute the stress during excavation, and further ensure the rotation support strength of the breaker roller. The upper arc cover and the lower arc cover can effectively block the dispersion of the mineral materials when the excavation component is mining, reduce the dispersion of the mineral materials to the surroundings and the rear side, and make the subsequent collection work more convenient. The material guide component can be used to guide and collect the blocked mineral materials to the rear side, and can efficiently transport and guide the excavated mineral materials to the rear transport mine car or the designated area, thereby improving the continuity and overall efficiency of mining, reducing mining costs and shortening the mining cycle. In addition, the bellows, metal rings, the third hydraulic telescopic rod and the fourth hydraulic telescopic rod in the material guide component can adjust and control the front and rear material guide and discharge positions of the bellows and the metal ring, thereby improving the flexibility and accuracy of material discharge and guidance. The water spray component can spray, so as to wet and reduce dust on the mineral materials when the excavation component is digging, reduce dust generated by crushing and friction of mineral materials during excavation, improve the air quality at the work site, protect the health of workers, and at the same time avoid dust affecting the work line of sight, improve work safety and efficiency. During this period, it can be used in conjunction with the catheter component to guide and transport the water pipe, and can control the transportation and limitation of the water pipe through the electric telescopic rod and the conveying motor, so as to ensure the normal operation of the water spray component and avoid water cut-off and entanglement of the water pipe 82. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the local structure; Figure 4 For the present invention Figure 2 Another perspective structural diagram; Figure 5 It is a structural schematic diagram of the excavation assembly of the present invention; Figure 6 It is a structural schematic diagram of the excavation assembly and the movable support of the present invention; Figure 7 It is a schematic diagram of the structure of the movable bracket, the upper arc cover and the lower arc cover of the present invention; Figure 8 It is a schematic structural diagram of the side mounting plate and the side digging roller of the present invention; Fig. 9 It is a schematic diagram of the connection structure between the beating roller and the reverse transmission mechanism of the present invention; Fig.10 It is a structural schematic diagram of the polygonal sleeve and the side mounting plate of the present invention; Fig.11 It is a schematic diagram of the structure of the present invention in use state; In the figure: excavator frame 1, machine arm 2, first hydraulic telescopic rod 3, movable bracket 4, vertical rod 41, second hydraulic telescopic rod 42, side mounting plate 43, outer circular protrusion 44, inner circular protrusion 45, planetary gear 46, excavation assembly 5, breaking roller 51, polygonal sleeve 511, side rotating circular groove 512, inner gear ring 513, breaking piece 514, front protruding tooth 515, side digging roller wheel 52, digging block 521, shovel tooth 522, digging groove 523, drive motor 53, rotating shaft 5 4. Central gear 541, upper arc cover 6, lower arc cover 7, material guide assembly 71, material guide hopper 711, bellows 712, metal ring 713, third hydraulic telescopic rod 714, fourth hydraulic telescopic rod 715, water spray assembly 8, water storage tank 80, water pump 81, water pipe 82, diversion water spray pipe 83, atomizing nozzle 84, catheter assembly 9, side baffle 91, lower clamping wheel 92, conveying motor 921, upper clamping wheel 93, slide 94, slider 95, electric telescopic rod 96. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0016] like Figure 1-11As shown in the figure, the present invention provides a technical solution for an excavation device for mining, including an excavator frame 1 and an arm 2 and a first hydraulic telescopic rod 3 hinged on the front side of the excavator frame 1, and the middle part of the arm 2 is connected through the telescopic end of the first hydraulic telescopic rod 3, so that the lifting or lowering action of the arm 2 can be realized by controlling the extension and contraction of the first hydraulic telescopic rod 3, and the front end of the arm 2 is rotatably connected to a movable bracket 4, and the front end of the movable bracket 4 is movably connected to an excavation component 5, and the upper and lower sides of the movable bracket 4 on the rear side of the excavation component 5 are respectively installed with an upper arc cover 6 and a lower arc cover 7, which are used to block the dispersion of mineral materials when the excavation component 5 is mining; vertical poles 41 are vertically installed in the middle of the left and right sides of the movable bracket 4, and the arm 2 is hinged with two second hydraulic telescopic rods 42 that are rotatably connected to the two vertical poles 41, which are used to control the movable bracket 4 and the excavation component 5 to rotate up and down, so that the required height and angle of the excavation component 5 can be adjusted, thereby improving the use flexibility of the excavation component 5.

[0017] The excavation assembly 5 includes a breaking roller 51 rotatably arranged at the front side of the movable bracket 4 and side digging rollers 52 movably arranged at both sides of the breaking roller 51. The two side digging rollers 52 rotate upward counterclockwise to dig the mineral material, while the breaking roller 51 rotates downward clockwise to crush and dig the mineral material. The upper arc cover 6 and the lower arc cover 7 are respectively arranged on the rear half of the breaking roller 51 and the side digging roller 52. The breaking roller 51 and the side digging roller 52 adopt a specific rotation mode, that is, the two side digging rollers 52 rotate upward counterclockwise to dig the mineral material, while the breaking roller 51 can rotate downward clockwise to crush and dig the mineral material, so as to generate different torsional excavation forces and excavation forces. The different digging directions help to more effectively excavate the mineral material. Different rotary excavation forces and digging directions enable the excavation device to excavate the mineral material from multiple angles at the same time. For mineral materials with different hardness and structure, excavation in a single direction may encounter greater resistance, and the rotary excavation forces in different directions can better adapt to the characteristics of the mineral material. For example, when some harder mineral materials are not easy to excavate from top to bottom, the side excavation roller 52 can excavate upward counterclockwise and cooperate with the breaking roller 51 to excavate downward clockwise, in different directions, so that the harder mineral material is subjected to forces in different directions, making the mineral material easier to be broken and excavated, and the excavation effect is better.

[0018] In the above technical scheme, specifically, a rotating shaft 54 ​​is rotatably installed at the front end of the movable bracket 4, and driving motors 53 for driving the rotating shaft 54 ​​to rotate are respectively installed on the left and right sides of the movable bracket 4, and the breaking roller 51 and the two side digging rollers 52 are both sleeved on the rotating shaft 54, wherein the rotating shaft 54 ​​directly drives the side digging roller 52 to rotate counterclockwise, and a reverse transmission mechanism is provided in the middle of the rotating shaft 54, so that the rotating shaft 54 ​​is stably and synchronously driven by two driving motors 53, and the rotating shaft 54 ​​drives the side digging roller 52 to rotate counterclockwise, and the rotating shaft 54 ​​drives the breaking roller 51 to rotate clockwise in the opposite direction through the reverse transmission mechanism, so that when the two side digging rollers 52 dig upward stably, the breaking roller 51 breaks and digs downward synchronously.

[0019] The side digging rollers 52 and the impact rollers 51 are fixedly provided with inner circular ridges 45 on the opposite sides of the two side digging rollers 52, and the inner circular ridges 45 are rotatably embedded in the two side surfaces of the impact rollers 51, so as to strengthen the rotation support strength of the side digging rollers 52. In other words, the side digging rollers 52 themselves have an additional rotation support of the outer circular ridges 44 of the side mounting plates 43 on the rotation support of the rotating shaft 54. Under the rotation support of the reverse transmission mechanism and the rotating shaft 54, the side digging rollers 52 themselves have an additional rotation support of the inner circular ridges 45 of the side mounting plates 43, which greatly improves the overall structural strength and rotation stability.

[0020] Specifically, the breaking roller 51 includes a polygonal sleeve 511 and a plurality of breaking plates 514 sleeved on the outside of the polygonal sleeve 511, and a plurality of front protruding teeth 515 are respectively provided on the outside of the breaking plates 514, and the sharp points of the front protruding teeth 515 can effectively break into the mineral material. Side rotating circular grooves 512 are provided on both sides of the polygonal sleeve 511, and the inner circular convex edge 45 is adapted to be rotatably embedded in the inner side of the side rotating circular groove 512 to support the rotation of the breaking roller 51, and at the same time, it can seal the inner side of the polygonal sleeve 511, thereby preventing external mineral material particles from entering the inner side of the polygonal sleeve 511 and affecting the use of the reverse transmission mechanism and the rotating shaft 54, thereby improving its use effect.

[0021] The above-mentioned reverse transmission mechanism includes a central gear 541 fixedly mounted in the middle of the rotating shaft 54, and a planetary gear 46 rotatably mounted between the two side mounting plates 43 through an axial rod. There are six planetary gears 46, which are distributed in a ring array on the outside of the central gear 541 and mesh with each other for transmission. An inner gear ring 513 is fixedly mounted on the inner side of the polygonal sleeve 511, and the outer sides of each planetary gear 46 mesh with the inner gear ring 513 for transmission. Therefore, when the rotating shaft 54 ​​rotates, the six planetary gears 46 can be rotated by meshing with the central gear 541, and the six planetary gears 46 mesh and rotate with the inner gear ring 513, so that the polygonal sleeve 511 and the breaking plate 514 of the breaking roller 51 can rotate synchronously in the opposite clockwise direction, ensuring that the breaking roller 51 and the side digging roller 52 rotate in the opposite direction.

[0022] Among them, the outer ring array of the side digging roller 52 has a plurality of integrated digging blocks 521, and the outer edge of the digging block 521 is provided with a shovel tooth 522. The sharp part of the shovel tooth 522 can also easily break into the mineral material to facilitate digging, and a digging groove 523 is opened on the upper side of the middle part of the digging block 521. When the side digging roller 52 rotates upward counterclockwise, the shovel tooth 522 can break into the mineral material, and place the mineral material in the digging groove 523, and rotate and transport it to the upper arc cover 6 and the lower arc cover 7 on the rear side. Moreover, when the side digging roller 52 breaks and digs downward, part of the mineral material can fall directly into the digging groove 523 in the side digging roller 52 from both sides, so that it is directly transported upward into the upper arc cover 6, thereby improving the digging effect.

[0023] In this embodiment, a material guide assembly 71 is provided on the lower side of the lower arc cover 7, which is used to cooperate in guiding and collecting the mineral materials blocked by the upper arc cover 6 and the lower arc cover 7 to the rear side, so as to avoid the dispersion of the mineral materials during mining, reduce the situation where the mineral materials are scattered around and to the rear side, and make the subsequent collection work more convenient. Specifically, its material guide assembly 71 includes a material guide hopper 711 locked on the lower side of the lower arc cover 7, and the bottom of the material guide hopper 711 is connected and locked with a bellows 712, and the bellows 712 can be flexibly moved. The bellows 712 is connected to the inner side of the lower arc cover 7 through the material guide hopper 711, so that the mineral materials in the lower arc cover 7 enter the bellows 712 from the material guide hopper 711 and are guided backward. A metal ring 713 is fastened to the end of the bellows 712, and a third hydraulic telescopic rod 714 is hinged on the upper side of the metal ring 713, the other end of the third hydraulic telescopic rod 714 is rotatably connected to the lower side of the machine arm 2, a fourth hydraulic telescopic rod 715 is hinged in the middle of the third hydraulic telescopic rod 714, and is rotatably connected to the lower side of the movable bracket 4 through the fourth hydraulic telescopic rod 715. Therefore, by controlling the extension and contraction of the fourth hydraulic telescopic rod 715 and the third hydraulic telescopic rod 714 to adjust the material guiding position of the end of the bellows 712 and the metal ring 713 in the up, down, front and back directions, the excavated ore can be efficiently transported to the rear transport mine car or designated area for material guidance.

[0024] In this embodiment, a water spray assembly 8 is provided on the upper side of the upper arc-shaped cover 6, which is used to wet and reduce dust on the mineral material when the excavation assembly 5 is excavating. The water spray assembly 8 includes a diversion water spray pipe 83 installed on the upper side of the upper arc-shaped cover 6 and a water storage tank 80 installed on the upper side of the excavator frame 1. The water storage tank 80 is installed with a water pump 81, and the water pump 81 is connected to a water pipe 82, and is connected to one side of the water inlet end of the diversion water spray pipe 83 through the water pipe. The diversion water spray pipe 83 is installed with a plurality of atomizing nozzles 84 arranged toward the front side. The water pump 81 transports water in the water storage tank 80 to the diversion water spray pipe 83, and the water is sprayed out by each atomizing nozzle 84 of the diversion water spray pipe 83, so that the mineral material is wetted and reduced in dust when the excavation assembly 5 is excavating, reducing dust generated by crushing and friction of the mineral material during the excavation process, improving the air quality at the work site, and also preventing dust from affecting the work line of sight, thereby improving work safety and efficiency.

[0025] Furthermore, the water spray assembly 8 can be used in conjunction with the duct assembly 9 during use. A plurality of duct assemblies 9 for guiding and conveying the water pipe 82 are installed on the upper side of the machine arm 2, so that the corresponding length of the water pipe 82 can be adjusted when the machine arm 2 and the movable bracket 4 are adjusted, so as to avoid the water pipe 82 being too long or too short and being entangled or disconnected. Specifically, the duct assembly 9 includes two side baffles 91 arranged at a relative interval, and the two side baffles 91 are connected to the upper clamping wheel 93 and the lower clamping wheel 92 arranged oppositely up and down through the rotation of the shaft on the opposite side of the two side baffles 91, and one side of one of the side baffles 91 is equipped with a shaft for driving the lower clamping wheel 92 to rotate. A conveying motor 921 is driven, and a slide groove 94 is vertically opened in the middle of the upper side of the two side baffles 91. A slider 95 is slidably arranged inside the slide groove 94, and the upper clamping wheel 93 is rotatably installed in the middle of the two sliders 95 through an axle rod. An electric telescopic rod 96 for pushing and pulling the slider 95 to rise and fall is installed on the upper side of the side baffle 91. The water pipe 82 passes through the middle of the upper clamping wheel 93 and the lower clamping wheel 92. When the electric telescopic rod 96 pushes the upper clamping wheel 93 to convey downward, the water pipe 82 is rolled on the upper side of the lower clamping wheel 92 for clamping and limiting. The conveying motor 921 is used to drive the rotation of the lower clamping wheel 92 to convey the water pipe 82 back and forth. The use is simple and convenient.

[0026] A construction method of an excavation device for mining, comprising the following operating steps: first, an excavator frame 1 needs to be moved to the vicinity of the ore, and the arm 2 is lifted by controlling the first hydraulic telescopic rod 3, so that the excavation assembly 5 on the movable bracket 4 is lifted to the required height, and the second hydraulic telescopic rod 42 is controlled to extend and retract according to the on-site environment to push and pull the angle of the movable bracket 4, so that the breaking roller 51 and two side digging rollers 52 of the excavation assembly 5 can contact the ore, and the driving motor 53 is started. The driving motor 53 directly drives the two side digging rollers 52 to rotate upward counterclockwise through the rotating shaft 54 ​​to dig into the ore, and the sides of the two side digging rollers 52 are As the outer cylindrical protrusion 44 of the side mounting plate 43 rotates, the shovel teeth 522 on the digging block 521 of the side digging roller 52 break into the ore and place the ore in the digging groove 523, and then rotate and transport the ore to the inner side of the upper arc cover 6 and the lower arc cover 7 on the rear side. At the same time, since a reverse transmission mechanism is arranged in the middle of the rotating shaft 54, the central gear 541 of the reverse transmission mechanism is driven by the rotating shaft 54, and the central gear 541 meshes with the six planetary gears 46, and the planetary gears 46 drive the outer inner gear ring 513 to rotate in the opposite direction, so that the polygonal sleeve 511 and the breaking piece 514 can stably rotate clockwise on the inner cylindrical convex edge 45 of the side mounting plate 43, so as to realize the breaking roller 5 The excavation effect of the reverse rotation of the side digging roller 52 and the side digging roller 52 crushes the middle mineral material from the lower side and pushes it into the lower arc cover 7, and generates different torsional excavation forces and excavation directions with the side digging roller 52. After the mineral material is input into the upper arc cover 6 and the lower arc cover 7 by the crushing roller 51 and the side digging roller 52 respectively, it will be concentrated and fall into the guide hopper 711 of the guide assembly 71, and then enter the bellows 712. By controlling the extension and contraction of the third hydraulic telescopic rod 714 and the fourth hydraulic telescopic rod 715, the front and rear guide positions of the end of the bellows 712 and the metal ring 713 can be adjusted to control the mineral material to be concentrated and transported to the transport mine car or the designated area at the rear side; and During the process, the water pump 81 is started as needed, so that the water in the water tank 80 passes through the water pipe 82 and the diversion water spray pipe 83 and is sprayed out from the atomizing nozzle 84 to wet the mineral material and reduce dust, thereby reducing dust generated by mineral material crushing and friction during excavation. During the water spraying process, when it is necessary to adjust the conveying position of the water pipe 82, the electric telescopic rod 96 in the duct assembly 9 pushes the slider 95 up and down, thereby adjusting the limit of the upper clamping wheel 93 and the lower clamping wheel 92 on the water pipe 82, and then the conveying motor 921 drives the lower clamping wheel 92 to rotate, so as to realize the forward and backward conveyance of the water pipe 82, thereby ensuring the normal operation of the water spray assembly 8 and avoiding water cutoff and entanglement of the water pipe 82.

[0027] In the above technical scheme, the above embodiments show and describe the basic principles and main features of the invention and the advantages of the invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the invention, the present invention may have various changes and improvements, and these changes and improvements shall fall within the scope of the invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An excavation device for mining, comprising an excavator frame (1), an arm (2) and a first hydraulic telescopic rod (3) hinged to the front side of the excavator frame (1), and the middle part of the arm (2) is connected via the telescopic end of the first hydraulic telescopic rod (3), characterized in that: The front end of the machine arm (2) is rotatably connected to a movable bracket (4), the front end of the movable bracket (4) is movably connected to an excavation assembly (5), and an upper arc cover (6) and a lower arc cover (7) are respectively installed on the upper and lower sides of the movable bracket (4) at the rear side of the excavation assembly (5) to prevent the dispersion of mineral materials when the excavation assembly (5) is excavating; Vertical poles (41) are vertically mounted in the middle of the left and right sides of the movable bracket (4), and the machine arm (2) is hinged with two second hydraulic telescopic rods (42) respectively rotatably connected to the two vertical poles (41) for controlling the movable bracket (4) and the excavating assembly (5) to rotate up and down; A material guide assembly (71) is provided at the lower side of the lower arc-shaped cover (7) for guiding and collecting the mineral materials blocked by the upper arc-shaped cover (6) and the lower arc-shaped cover (7) to the rear side; A water spray assembly (8) is provided on the upper side of the upper arc-shaped cover (6) for wetting the mineral material and reducing dust when the excavation assembly (5) is excavating the material; The excavation assembly (5) comprises a breaking roller (51) rotatably arranged at the front side of the movable bracket (4) and side digging rollers (52) movably arranged at both sides of the breaking roller (51); the two side digging rollers (52) rotate counterclockwise upward to dig mineral materials, while the breaking roller (51) rotates clockwise downward to crush and dig mineral materials; the upper arc cover (6) and the lower arc cover (7) are respectively arranged to cover the rear half of the breaking roller (51) and the side digging roller (52).

2. The excavation device for mining according to claim 1, characterized in that: A rotating shaft (54) is rotatably mounted on the front end of the movable bracket (4), and drive motors (53) for driving the rotating shaft (54) to rotate are respectively mounted on the left and right sides of the movable bracket (4), and the breaking roller (51) and the two side digging rollers (52) are sleeved on the rotating shaft (54), wherein the rotating shaft (54) directly drives the side digging rollers (52) to rotate counterclockwise, and a reverse transmission mechanism is provided in the middle of the rotating shaft (54), and the breaking roller (51) is driven to rotate in the reverse clockwise direction through the reverse transmission mechanism.

3. The excavation device for mining according to claim 2, characterized in that: Two side mounting plates (43) are fixedly disposed horizontally on the front side of the movable bracket (4), the breaking roller (51) and the reverse transmission mechanism are disposed between the two side mounting plates (43), outer circular protrusions (44) are fixedly disposed on the outer sides of the two side mounting plates (43), and are rotatably embedded in the opposite sides of the two side digging rollers (52) through the outer circular protrusions (44), so as to strengthen the rotation support strength of the side digging rollers (52), and inner circular convex edges (45) are fixedly disposed on the opposite sides of the two side mounting plates (43), and the inner circular convex edges (45) are rotatably embedded in the two side surfaces of the breaking roller (51), so as to strengthen the rotation support strength of the breaking roller (51).

4. The excavation device for mining according to claim 3, characterized in that: The breaking roller (51) comprises a polygonal shaft sleeve (511) and a plurality of breaking pieces (514) sleeved on the outside of the polygonal shaft sleeve (511), and a plurality of front convex teeth (515) are respectively provided on the outside of the breaking pieces (514), and side rotating circular grooves (512) are provided on both sides of the polygonal shaft sleeve (511), and the inner circular convex edge (45) is adapted to be rotatably embedded in the inner side of the side rotating circular groove (512) to support the rotation of the breaking roller (511).

5. The excavating device for mining according to claim 4, characterized in that: The reverse transmission mechanism comprises a central gear (541) fixedly mounted in the middle of the rotating shaft (54), and a planetary gear (46) rotatably mounted between two side mounting plates (43) via a shaft rod, wherein a plurality of the planetary gears (46) are arranged and distributed in an annular array on the outside of the central gear (541) and mesh with each other for transmission, an inner gear ring (513) is fixedly mounted on the inner side of the polygonal shaft sleeve (511), and the outer sides of the planetary gears (46) mesh with the inner gear ring (513) for transmission, so as to drive the polygonal shaft sleeve (511) and the breaking plate (514) to rotate in the reverse clockwise direction.

6. The excavating device for mining according to claim 4, characterized in that: The outer ring array of the side digging roller (52) has a plurality of integrated digging blocks (521), the outer edges of the digging blocks (521) are provided with shovel teeth (522), and the upper middle sides of the digging blocks (521) are provided with digging grooves (523). When the side digging roller (52) rotates upward counterclockwise, the shovel teeth (522) can break into the mineral material and place the mineral material in the digging groove (523), and then rotate and transport it to the upper arc cover (6) and the lower arc cover (7) at the rear side.

7. The excavation device for mining according to claim 1, characterized in that: The material guide assembly (71) comprises a material guide hopper (711) locked to the lower side of the lower arc-shaped cover (7), and the bottom of the material guide hopper (711) is connected to and locked with a bellows (712), and the bellows (712) is connected to the inner side of the lower arc-shaped cover (7) through the material guide hopper (711), and a metal ring (713) is fixedly provided at the end of the bellows (712), and a third hydraulic telescopic rod (714) is hingedly connected to the upper side of the metal ring (713), and the other end of the third hydraulic telescopic rod (714) is rotatably connected to the lower side of the machine arm (2), and a fourth hydraulic telescopic rod (715) is hingedly connected to the middle of the third hydraulic telescopic rod (714), and is rotatably connected to the lower side of the movable bracket (4) through the fourth hydraulic telescopic rod (715), so as to adjust and control the front and rear material guide positions of the bellows (712) and the metal ring (713).

8. The excavating device for mining according to claim 1, characterized in that: The water spray assembly (8) comprises a diverter water spray pipe (83) mounted on the upper side of the upper arc-shaped cover (6) and a water storage tank (80) mounted on the upper side of the excavator frame (1); the water storage tank (80) is mounted with a water pump (81); the water pump (81) is connected to a water pipe (82) and communicates with one side of a water inlet end of the diverter water spray pipe (83) through the water pipe; the diverter water spray pipe (83) is mounted with a plurality of atomizing nozzles (84) arranged toward the front side.

9. The excavating device for mining according to claim 8, characterized in that: A plurality of conduit assemblies (9) for guiding and conveying the water pipe (82) are mounted on the upper side of the machine arm (2). The conduit assembly (9) comprises two side baffles (91) arranged at a relative interval. An upper clamping wheel (93) and a lower clamping wheel (92) arranged opposite to each other are rotatably connected to each other via an axle rod on opposite sides of the two side baffles (91). A conveying motor (921) for driving the lower clamping wheel (92) to rotate is mounted on one side of one of the side baffles (91). A slide groove (94) is vertically opened in the middle of the upper side of the two side baffles (91). The slide groove A slider (95) is slidably arranged on the inner side of (94), and an upper clamping wheel (93) is rotatably mounted on the middle of the two sliders (95) via an axle rod. An electric telescopic rod (96) for pushing and pulling the slider (95) to move up and down is mounted on the upper side of the side baffle (91). The water pipe (82) passes through the middle of the upper clamping wheel (93) and the lower clamping wheel (92). When the electric telescopic rod (96) pushes the upper clamping wheel (93) to be transported downward, the water pipe (82) is rolled on the upper side of the lower clamping wheel (92) to limit the position, and the water pipe (82) is transported forward and backward by utilizing the rotation of the lower clamping wheel (92).

10. A construction method for an excavation device for mining according to any one of claims 1 to 9, characterized in that: The following steps are involved: First, the excavator frame (1) needs to be moved to the vicinity of the ore, and the arm (2) needs to be raised by controlling the first hydraulic telescopic rod (3), so that the excavation assembly (5) on the movable bracket (4) is raised to a desired height, and the second hydraulic telescopic rod (42) needs to be controlled to extend and retract according to the on-site environment to push, pull and rotate the angle of the movable bracket (4), so that the breaking roller (51) and two side digging rollers (52) of the excavation assembly (5) can contact the ore, and the two side digging rollers (52) need to be rotated upward in a counterclockwise direction, so that the side digging rollers (52) can dig upward into the coal mine on the front side and transport it backward to the upper arc cover (6 ) and the lower arc cover (7), at the same time, the crushing roller (51) can rotate synchronously clockwise between the two side digging rollers (52), and generate different torsional digging forces and digging directions with the side digging rollers (52), so that the middle mineral material is crushed from the lower side and pushed into the lower arc cover (7), and in the excavation process, the water spray assembly (8) on the upper side of the upper arc cover (6) is controlled according to demand to spray and reduce dust, and when the mineral material enters the upper arc cover (6) and the lower arc cover (7), it will be concentrated and fall into the material guide assembly (71), and under the action of the material guide assembly (71), it will be concentrated and transported to the transport mine car or designated area at the rear side.

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