A material leveling device and method for a mining machine

Abstract

The application discloses a kind of uniform material device and method for mine machinery, it is related to mine machinery technical field, including frame main body, frame main body inside assembly is used for bearing and conveying mine raw material conveying groove body, the side of frame main body is equipped with drive module, the feeding end of frame main body is provided with feeding module corresponding conveying groove body above, drive module is expanded by linkage adjustment and makes the feeding frame output area of slope fixed end and slope mobile end enclose, it is simultaneously driven and moves downwards conveying groove body, both reduce the inclination angle of conveying groove body, and increase its distance with feeding module output, this design not only can provide sufficient falling channel for the mine raw material of larger volume, avoid the problem that raw material is jammed and blocked at feeding port, but also can increase the spacing of feeding port and groove and buffer raw material falling impact force.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mining machinery, in particular to a uniform material device and method for mining machinery. BACKGROUND

[0002] A kind of uniform material device for mining machinery is mainly used for uniform distribution and stable feeding to bulk material in the process of mining, ore dressing and conveying, the device is by generating high-frequency vibration, make material evenly spread on the screen surface and forward transport, while avoiding material accumulation or flow break, ensure the continuity and stability of subsequent crushing, sorting or transport link, it is widely used in open pit, underground mining, ore dressing plant and sandstone production line, especially suitable for the feeding end of jaw crusher, cone crusher and other equipment, can effectively improve equipment processing efficiency, reduce energy consumption and reduce mechanical wear.

[0003] But the prior art still has the following defects when used in detail:

[0004] 1、Compared with the existing uniform material device for mining machinery, in terms of structural design, the inclination angle of the main body of the rack is mostly fixedly arranged, and the size of the discharge port of the feeding module cannot be adjusted, only a single specification of mine raw material can be adapted, in terms of adaptability, when facing large specification raw materials, the fixed small size discharge port is prone to material jamming and blocking, and when facing small specification raw materials, the fixed large inclination angle and large discharge port will cause the raw materials to be scattered and cannot be concentrated and transported.

[0005] These defects bring multi-dimensional negative effects to the uniform material device. In terms of operation and maintenance efficiency, material jamming and raw material scattering need to be cleaned frequently by hand, manual adjustment is time-consuming and laborious, significantly prolongs the equipment downtime, and seriously affects the continuity of mine operation; in terms of economic cost, equipment overload caused by material jamming is prone to cause component damage, scattered raw materials cause waste, and large frictional resistance aggravates equipment wear, frequent replacement of wearing parts significantly increases the whole life cycle operation and maintenance cost; in the field of safety management, material jamming may cause the drive components to be overloaded and burned out, there is a risk of being injured by the equipment when cleaning manually, and the scattered raw materials may also cause the operation surface to be slippery, posing a potential threat to the safety of the operator.

[0006] 2、Compared with the existing uniform material device for mining machinery, the structure of the feeding module is single, mostly fixed funnel-shaped or straight cylindrical, cannot switch and adapt the structure according to the characteristics of raw materials, and when adjusting the material conveying space, the whole needs to be disassembled, the operation is cumbersome and the sliding friction is large and easy to wear; and the raw materials are prone to accumulate inside the feeding module when falling, and cannot guide the smooth conveying of the material flow.

[0007] These defects not only reduce the uniform material efficiency, but also lead to poor device adaptability, and different feeding components need to be replaced when facing different forms of raw materials, increasing the operation complexity; in addition, frequent replacement of components further increases maintenance costs, and vibration noise may also affect the normal operation of surrounding equipment, and there is a safety hazard of equipment resonance causing failure.

[0008] Therefore, in view of this, the present application provides a uniform material device and method for mine machinery to make up for and improve the shortcomings of the prior art. SUMMARY

[0009] To solve the above technical problems, the present application provides a uniform material device and method for mine machinery to solve the technical problems raised in the background art.

[0010] To achieve the above purpose, the technical scheme adopted by the present application is as follows: a uniform material device for mine machinery, comprising a rack main body, a conveying groove body for carrying and conveying mine raw materials is assembled inside the rack main body, a drive module is assembled on the side of the rack main body, and a feeding module is provided on the feeding end of the conveying groove body above the rack main body; the feeding module can adapt to the conveying requirements of different specifications of mine raw materials, and linkage control is realized through the drive module: when the device conveys large-specification mine raw materials, the drive module can drive the inclination angle of the conveying groove body to be reduced, and at the same time drive the discharge port of the feeding module to be in an expanded state, thereby increasing the conveying space, adapting to the falling and conveying requirements of large-specification raw materials; when the device conveys small-specification mine raw materials, the drive module can drive the inclination angle of the conveying groove body to be increased, and at the same time drive the discharge port of the feeding module to be in a contracted state, thereby reducing the conveying space, and ensuring the concentration and efficient conveying of small-specification raw materials.

[0011] Further, the side wall of the rack main body is provided with a support frame, the drive module comprises a drive motor installed in the support frame, and a transmission member is installed on the output end of the drive motor.

[0012] Further, the transmission member comprises a belt and a plurality of belt pulleys, each belt pulley is arranged in an upper, middle and lower three-layer distribution along the same vertical plane, the belt pulley in the middle layer is controlled by the output end of the drive motor, the side wall of the lower belt pulley is fixedly connected with a lower threaded shaft, the outer wall of the lower threaded shaft is threadedly connected with a lower nut, a ball screw structure is formed between the lower threaded shaft and the lower nut, and the outer wall of the lower nut is fixedly connected with a lower fixed ring, and the side wall of the lower fixed ring is provided with an inclined surface support seat.

[0013] Further, the inclined surface support seat is in sliding connection with the support frame, the inclined surface support seat is in the shape of a trapezoid as a whole, and the inclined surfaces of the inclined surface support seat are uniformly connected with a plurality of rollers, and the inclined surfaces of the inclined surface support seat are in a state of adhesion with the bottom wall of the rack body.

[0014] Further, the side wall of the upper belt pulley of the transmission member is fixedly connected with an upper threaded shaft, the outer wall of the upper threaded shaft is threadedly connected with an upper nut, a ball screw structure is formed between the upper threaded shaft and the upper nut, and the outer wall of the upper nut is fixedly connected with an upper fixed ring.

[0015] Further, the feeding module comprises an inclined surface fixed end fixedly connected to the side wall of the support frame, the side wall of the inclined surface fixed end is slidingly connected with an inclined surface moving end, and the side wall of the inclined surface moving end is in sliding connection with the side wall of the support frame, the side wall of the inclined surface fixed end and the side wall of the inclined surface moving end are both fixedly connected with a plurality of convex spherical points on the side close to each other, and the inclined surface fixed end and the inclined surface moving end cooperatively enclose a complete feeding frame, which is in the shape of a funnel with a wide top and a narrow bottom.

[0016] Further, the feeding module further comprises a straight surface fixed end fixedly connected to the side wall of the support frame, and a straight surface swinging end is mounted on the side wall of the straight surface fixed end, and the straight surface fixed end and the straight surface swinging end cooperatively enclose a complete feeding frame, which is in the shape of a straight rectangular.

[0017] Further, the side close to each other of the straight surface fixed end and the straight surface swinging end is fixedly connected with a plurality of guide plates, and the guide plates are in the shape of an inclined trapezoid with a narrow top and a wide bottom.

[0018] Further, a support shaft is fixedly connected to the center position of the side wall of the straight surface swinging end, the straight surface swinging end and the support frame are in rotational connection through the support shaft, and a plurality of soft shaft pads are uniformly fixedly connected to the side wall of the support shaft, the soft shaft pads are all made of rubber material, and the two sides of the soft shaft pads are fixedly connected to the side wall of the support frame.

[0019] A method for uniform feeding of mine machinery, comprising the following steps:

[0020] S1: Preparing the uniform feeding mechanism: checking whether each component of the rack body is intact, including whether the conveying groove body is stably installed, to ensure that the inclination angle meets the material conveying requirements, so as to prevent abnormal operation of the equipment or uneven material conveying during the uniform feeding process;

[0021] S2: Adjusting the uniform feeding parameters: selecting a uniform feeding program matched with the current material characteristics, setting the uniform feeding parameters, including the vibration frequency, the amplitude, and the inclination angle of the conveying groove body, to ensure that the material uniform conveying requirements are met, and to avoid material accumulation or too fast conveying due to mismatched parameters;

[0022] S3: uniform material running operation: start the device, the bottom vibration motor makes the conveying groove body vibrate; under the action of groove vibration, the material moves forward along the conveying groove body, and realizes uniform dispersion under the inertia force of vibration; the shock absorbing spring buffers the vibration impact, maintains stable vibration of the device, and ensures that the material is uniformly and continuously conveyed to the next process;

[0023] S4: uniform material end: after conveying is completed, stop the device running, check whether there is residual material in the conveying groove body at this time, if yes, clean it up, check whether the temperature rise of the vibration motor is normal and whether the shock absorbing spring is loose, after the device is completely stationary, necessary component maintenance or maintenance is carried out, and preparation for the next uniform material operation is made.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] (1) For large-scale mine raw material conveying, the driving module expands the output port area of the feeding frame enclosed by the fixed end of the slope and the moving end of the slope through linkage adjustment, and drives the conveying groove body to move downward, which not only reduces the inclination angle of the conveying groove body, but also increases the distance between the output port of the feeding module and the conveying groove body. This design not only provides a sufficient falling channel for large-volume mine raw materials, avoids the problem of raw material jamming and blocking at the feeding port, but also buffers the impact force of the raw material falling by increasing the distance between the feeding port and the groove, and the reduced inclination angle makes the movement of the raw material in the groove more gentle, avoiding the disorder of the material flow caused by excessive speed, ensuring uniform distribution of the raw material on the conveying groove, realizing efficient uniform material, greatly improving the smoothness and stability of the conveying process, reducing the frequency of manual cleaning of jammed materials, and reducing the operation intensity.

[0026] This synchronous linkage adjustment mode of "expanding the feeding port and reducing the inclination angle of the groove" exactly matches the core characteristics of large-scale mine raw materials, such as large volume, heavy weight and poor flowability, and has more targeted and adaptive advantages. If the large-scale raw material only expands the feeding port without adjusting the inclination angle of the groove, it is easy to impact the groove wall due to the large falling height difference; if the inclination angle is only reduced and the size of the feeding port is fixed, the raw material will be jammed due to the narrow channel. The device realizes synchronous adjustment of the two through the driving module, ensures that the expansion range of the feeding port and the reduction degree of the inclination angle of the groove adapt to the conveying needs of large raw materials, and does not need manual secondary intervention and adjustment, which not only reduces the operation complexity, but also avoids equipment failure caused by improper adjustment, significantly improves the adaptation accuracy and use convenience of the device for large-scale raw materials.

[0027] The inclination of the conveying groove body is smaller, which plays a key protection and flow stabilizing role for large-specification mine raw material conveying. If the inclination is too large, the large-specification raw material will slide along the groove body at a faster speed under the action of gravity, which not only easily causes violent collision with the groove body wall and end part, resulting in equipment wear and even structural deformation, but also may cause local accumulation or lateral scattering of the raw material due to uneven speed. After reducing the inclination, the sliding speed of the raw material slows down, and the impact force is greatly reduced, which not only protects the conveying groove body and related transmission parts, prolongs the service life of the whole equipment, but also allows the raw material to have sufficient time to spread naturally in the groove body, avoiding local accumulation affecting the uniform material effect. At the same time, the roller design of the inclined support seat further reduces the friction resistance when adjusting the groove body and conveying the raw material, ensuring smooth and uninterrupted operation of the groove body and continuous and orderly conveying of the raw material, providing a basic guarantee for the stable and uniform material of large-specification raw material.

[0028] The funnel-shaped feeding frame with wide top and narrow bottom is adopted for large-specification mine raw material, which can guide the raw material to the center by gravity, avoiding the scattering of large-specification raw material from the edge of the feeding port due to irregular volume and gravity center offset, ensuring the accurate falling of the raw material into the conveying groove body. At the same time, the funnel-shaped structure can gradually shrink the material flow, slow down the falling speed of the raw material, and further buffer the impact force. The convex spherical point of the wall effectively reduces the sliding friction between the raw material and the wall of the feeding frame, as well as between the inclined moving end and the fixed end, which not only avoids the wall wear caused by the sliding of large-weight raw material, but also makes the expansion adjustment of the inclined moving end more smooth, reducing the part wear.

[0029] (2) For small-specification mine raw material conveying, the driving module reduces the output port area of the feeding frame enclosed by the straight face fixed end and the straight face swinging end through linkage adjustment, and drives the conveying groove body to move upward, which not only increases the inclination angle of the conveying groove body, but also reduces the distance between the conveying groove body and the output port of the feeding module. This design not only avoids the scattering of small-specification raw material due to too large feeding space, ensures the concentrated falling of the raw material into the conveying groove body, but also reduces the splashing of the raw material by shortening the falling distance, and cooperates with the increased inclination angle to make the small-particle raw material quickly respond to the action of gravity, realizing stable and continuous conveying. At the same time, the concentrated material flow can evenly spread in the groove body, effectively avoiding local accumulation or sparse and uneven conditions, greatly improving the uniform material precision, reducing raw material waste, and synchronously improving the conveying efficiency and stability of small-specification raw material.

[0030] The synchronous linkage adjustment mode of "narrowing the feeding opening and increasing the angle of the groove body" precisely matches the core characteristics of small-specification mine raw materials, i.e., fine particles, light weight, and strong flowability. If the feeding opening is only narrowed without increasing the angle, the raw materials are prone to be accumulated and blocked due to insufficient gravity. If the angle is only increased and the space of the feeding opening is too large, the raw materials are prone to be scattered and the uniform feeding effect is poor. The device realizes the collaborative adjustment of the two through the driving module, so that the narrowing range of the feeding opening and the increasing degree of the angle of the groove body adapt to the conveying needs of small-particle raw materials without manual additional adjustment, which not only reduces the operation complexity, but also avoids the conveying failure caused by improper adaptation, and significantly improves the adaptation flexibility and use convenience of the device for small-specification raw materials.

[0031] The larger the inclination degree of the conveying groove body is, the more important the speed-up and anti-blocking effect for small-specification mine raw materials is. Small-specification raw materials are light in weight. If the angle is too small, the sliding power of the raw materials in the groove body is insufficient, which is prone to be accumulated and blocked due to the friction between particles, affecting the continuity of conveying. After increasing the angle, the component force of gravity on the raw materials is significantly improved, which can quickly overcome the frictional resistance between particles and speed up the sliding speed of the raw materials in the groove body, ensuring smooth flow of the raw materials without stagnation. At the same time, the faster conveying speed can reduce the contact time of the raw materials with the groove body wall, reduce the risk of adsorption and residue of small particles with low viscosity, and reduce the manual cleaning frequency.

[0032] The feeding frame of small-specification mine raw materials adopts a straight rectangular structure, which can provide a regular falling channel for small-particle raw materials. Combined with the narrowed outlet, the flow range is effectively restricted to avoid the scattering and spilling of raw materials due to their strong flowability. The inclined trapezoidal guide plates on the wall can precisely guide the dispersed small-particle raw materials, gather the raw materials in the edge area to the center, further strengthen the flow concentration, ensure the uniform falling of the raw materials into the center area of the conveying groove body, and improve the uniform feeding effect. At the same time, the guide plates can also slow down the falling speed of the raw materials to avoid the splashing of small particles due to too fast falling, reduce the loss of raw materials, and the regular flow can reduce the impact on the groove body, protect the equipment, and make the conveying of small-specification raw materials more stable and efficient.

[0033] Especially important, the driving point of the straight face swing end is arranged on the upper part, which presents a state of "larger at the top and smaller at the bottom" when swinging, and further forms a structural advantage of "larger input end and smaller output end of the feeding module", the larger input end can accommodate more small-sized raw materials for simultaneous feeding, avoiding congestion during feeding and improving feeding efficiency; the smaller output end can quickly gather the dispersed material flow, ensuring the centralized falling of the raw materials, strengthening the material uniformizing effect, and perfectly adapting to the conveying demand of small-particle raw materials "easy to disperse and need to be gathered", meanwhile, the rubber flexible shaft pad on the lower side wall of the straight face swing end can effectively buffer the impact during the movement of the swing end, reduce vibration and noise, and improve the running stability of the device; the elastic sealing shaft body can also prevent mine dust from entering the shaft body to cause wear or jam, ensure the flexible rotation of the swing end, prolong the service life of the component, and reduce the later operation and maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a front view of the structure of the application;

[0035] Figure 2 It is a shaft view of the main body of the rack in embodiment one of the application;

[0036] Figure 3 It is a three-dimensional structure diagram of the driving module in embodiment one of the application;

[0037] Figure 4 It is a plane side view structure diagram of the main body of the rack in embodiment one of the application;

[0038] Figure 5 It is a three-dimensional structure diagram of the feeding module in embodiment one of the application;

[0039] Figure 6 It is a plane side view structure diagram of each component of the driving module in embodiment one of the application;

[0040] Figure 7 It is a shaft view of the main body of the rack in embodiment two of the application;

[0041] Figure 8 It is a plane side view structure diagram of the main body of the rack in embodiment two of the application;

[0042] Figure 9 It is a three-dimensional structure diagram of the feeding module in embodiment two of the application;

[0043] Figure 10 It is a plane side view structure diagram of each component of the driving module in embodiment two of the application;

[0044] Figure 11 It is a three-dimensional structure diagram of the flexible shaft pad in embodiment two of the application;

[0045] Figure 12 It is a feeding module planar side view structure schematic diagram in the second embodiment of the present application.

[0046] The figure mark is:

[0047] 1, rack main body; 11, conveying groove body; 12, support frame;

[0048] 2, drive module; 21, drive motor; 22, transmission part; 23, lower threaded shaft; 24, lower nut; 25, lower fixed ring; 26, inclined surface support seat; 27, upper threaded shaft; 28, upper nut; 29, upper fixed ring;

[0049] 3, feeding module; 31, inclined surface fixed end; 32, inclined surface moving end; 33, convex ball point; 34, straight surface fixed end; 35, straight surface swing end; 36, guide plate; 37, support shaft; 38, soft shaft pad. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application;

[0051] It should be noted that the structure and working principle of the above-mentioned rack main body 1, conveying groove body 11 and the like belong to the prior art, and will not be described here.

[0052] Embodiment one: please refer to Figure 1 and Figure 2 , a uniform material device for mine machinery, comprising a rack main body 1, the rack main body 1 is internally assembled with a conveying groove body 11 for carrying and conveying mine raw materials, the side of the rack main body 1 is assembled with a drive module 2, and the upper part of the rack main body 1 is provided with a feeding module 3 corresponding to the feeding end of the conveying groove body 11;

[0053] The feeding module 3 can adapt to the conveying needs of different specifications of mine raw materials, and linkage control is realized through the drive module 2: when the equipment conveys large-specification mine raw materials, the drive module 2 can drive to reduce the inclination angle of the conveying groove body 11, at the same time, the discharge port of the feeding module 3 is in an expanded state, thereby increasing its conveying space, adapting to the falling and conveying needs of large-specification raw materials; when the equipment conveys small-specification mine raw materials, the drive module 2 can drive to increase the inclination angle of the conveying groove body 11, at the same time, the discharge port of the feeding module 3 is in a contracted state, thereby reducing its conveying space, and ensuring the concentration and efficient conveying of small-specification raw materials.

[0054] Please refer to Figure 2 -Figure 6 As shown, the side wall of the rack body 1 is equipped with a support frame 12, the driving module 2 comprises a driving motor 21 mounted inside the support frame 12, the output end of the driving motor 21 is provided with a transmission member 22, the transmission member 22 comprises a belt and a plurality of belt pulleys, each belt pulley is arranged in an upper, middle and lower three-layer distribution along the same vertical plane, and the belt pulley located in the middle layer is controlled by the output end of the driving motor 21.

[0055] It should be noted that the side wall of the lower belt pulley of the transmission member 22 is fixedly connected with a lower threaded shaft 23, the outer wall of the lower threaded shaft 23 is threadedly connected with a lower nut 24, the lower threaded shaft 23 and the lower nut 24 form a ball screw structure, and the outer wall of the lower nut 24 is fixedly connected with a lower fixed ring 25, the side wall of the lower fixed ring 25 is provided with an inclined surface support seat 26, the inclined surface support seat 26 is in sliding connection with the support frame 12, the inclined surface support seat 26 is in the form of a trapezoid as a whole, and the inclined surfaces of the inclined surface support seat 26 are uniformly connected with a plurality of rollers, the inclined surfaces of the inclined surface support seat 26 are in a state of adhesion with the bottom wall of the rack body 1, the side wall of the upper belt pulley of the transmission member 22 is fixedly connected with an upper threaded shaft 27, the outer wall of the upper threaded shaft 27 is threadedly connected with an upper nut 28, and the upper threaded shaft 27 and the upper nut 28 form a ball screw structure, and the outer wall of the upper nut 28 is fixedly connected with an upper fixed ring 29.

[0056] Please refer to Figure 2 , Figure 6 As shown, the feeding module 3 comprises an inclined surface fixed end 31 fixedly connected to the side wall of the support frame 12, the side wall of the inclined surface fixed end 31 is slidingly connected with an inclined surface moving end 32, and the side wall of the inclined surface moving end 32 is in sliding connection with the support frame 12, the side of the inclined surface fixed end 31 and the inclined surface moving end 32 away from each other is fixedly connected with a plurality of convex spherical points 33, and the inclined surface fixed end 31 and the inclined surface moving end 32 cooperatively form a complete feeding frame, which is in the form of a funnel shape with a wide upper part and a narrow lower part.

[0057] It should be noted that the feeding frame formed by the inclined surface fixed end 31 and the inclined surface moving end 32 has a core adaptive scene for conveying large-specification mine raw materials, and the specific structural cooperation relationship is as follows: Figure 4 As shown, the roller at the uppermost end of the inclined surface of the inclined surface support seat 26 forms a clamping contact with the bottom of the conveying groove body 11 in this working condition to realize stable support and angle positioning of the conveying groove body 11, and the upper fixed ring 29 is assembled at the central position of the outer wall of the inclined surface moving end 32 to ensure that the driving force transmission to the inclined surface moving end 32 is centered and balanced.

[0058] Further, as shown in Figure 6As shown, the lower threaded shaft 23 and the upper threaded shaft 27 have the same helical direction of the helical groove on the outer wall, which ensures that the lower nut 24 and the upper nut 28 move in the same direction when the threaded shafts rotate synchronously under the drive of the motor 21. Meanwhile, the pitch size of the helical groove on the outer wall of the lower threaded shaft 23 is larger than that of the upper threaded shaft 27. Based on the transmission characteristics of the ball screw, the moving range of the lower nut 24 is larger than that of the upper nut 28 when the motor 21 outputs the same speed and acts for the same time, thereby meeting the differentiated adjustment requirements of the feeding frame and the conveying groove 11 when large-scale raw materials are conveyed.

[0059] Specifically, in the large-scale mine raw material conveying condition, the device first starts the driving motor 21 to drive the middle layer pulley in the vertical plane as the core power source. Since the upper, middle and lower pulleys are tightly connected by the belt, the rotation of the middle layer pulley synchronously drives the upper and lower pulleys to rotate in the same direction, and then drives the upper threaded shaft 27 fixed on the side wall of the upper pulley and the lower threaded shaft 23 fixed on the side wall of the lower pulley to rotate synchronously. The key point of this stage is to realize the accurate synchronous transmission of power through the belt drive, avoid the asynchronous adjustment caused by the lag of power transmission, and provide stable and synchronous power basis for the linkage adjustment of the conveying groove 11 and the feeding module 3, so as to ensure the orderly development of the whole adjustment process.

[0060] With the synchronous rotation of the upper and lower threaded shafts, the lower nut 24 and the upper nut 28 move synchronously along the axial direction to the side close to the driving motor 21 because the helical grooves on the outer walls of the two threaded shafts have the same direction and form a high-precision ball screw structure with the corresponding nuts. Meanwhile, the moving range of the lower nut 24 is larger than that of the upper nut 28 under the same speed output and the same time action of the driving motor 21 because the pitch of the lower threaded shaft 23 is larger than that of the upper threaded shaft 27. This not only ensures the coordination of the adjustment direction of the conveying groove 11 and the feeding module 3, but also provides displacement support for the differentiated adjustment of the two for large-scale raw materials, avoiding the problems of adjustment direction conflict or adjustment range mismatch.

[0061] During the movement of the lower nut 24, the outer wall fixed lower fixed ring 25 synchronously drives the side wall mounted inclined surface support seat 26 to slide along the inner wall of the support frame 12 stably. Since the inclined surface support seat 26 is trapezoidal as a whole and the inclined surface closely adheres to the bottom wall of the conveying groove body 11, and the roller at the uppermost end of the inclined surface of the inclined surface support seat 26 forms a clamping contact with the bottom of the conveying groove body 11, as the inclined surface support seat 26 moves towards the side close to the driving motor 21, the support height of the inclined surface of the inclined surface support seat 26 to the conveying groove body 11 gradually decreases, and finally the inclination angle of the conveying groove body 11 to the horizontal plane decreases. During this stage, the inclination angle of the conveying groove body 11 is reduced by the sliding of the inclined surface support seat 26, effectively avoiding the impact of high-speed sliding of large-size raw materials due to the large inclination angle of the conveying groove body 11, protecting the equipment from impact damage. At the same time, the design of the roller greatly reduces the frictional resistance between the inclined surface support seat 26 and the conveying groove body 11, ensuring smooth and non-jamming during the inclination angle adjustment process, improving the stability of the conveying groove body 11 operation, and ensuring that large-size raw materials can be transported slowly and stably.

[0062] At the same time, when the upper nut 28 moves, the outer wall fixed upper fixed ring 29 synchronously drives the inclined surface moving end 32 assembled at the center position to slide along the side wall of the support frame 12 and the side wall of the inclined surface fixed end 31. The convex ball point 33 on the side close to each other of the inclined surface fixed end 31 and the inclined surface moving end 32 effectively reduces the sliding friction therebetween, ensuring smooth movement of the inclined surface moving end 32, and finally making the funnel-shaped feeding frame discharge port cooperatively enclosed by the two in an expanded state, and the feeding space is significantly increased. During this stage, the expansion of the feeding port is realized by the sliding of the inclined surface moving end 32, which not only solves the problem of large-size raw materials easily jamming at the feeding port, but also ensures that the expanded feeding space can adapt to the size of large-size raw materials, and the design of the convex ball point 33 reduces the wear of the inclined surface moving end 32 during sliding, prolongs the service life of the component, and reduces the maintenance cost.

[0063] Finally, through the synchronous driving of the driving motor 21, the device completes the linkage adjustment of the reduction of the inclination angle of the conveying groove body 11 and the increase of the feeding space of the feeding module 3. This overall adjustment realizes the dual protection of "conveying stability + feeding smoothness", which not only perfectly adapts to the uniform conveying needs of large-size mine raw materials, avoids problems such as raw material jamming and impact on equipment, but also improves the operation efficiency and adaptability of the entire device, reduces the probability of manual intervention and equipment failure, and provides strong support for the continuity and stability of mine operations.

[0064] Example two: on the basis of example one, please refer to Figure 2 、 Figure 7 - Figure 12As shown, the feeding module 3 further comprises a straight fixed end 34 fixedly connected to the side wall of the support frame 12, a straight swing end 35 is mounted on the side wall of the straight fixed end 34, and the straight fixed end 34 and the straight swing end 35 cooperatively enclose a complete feeding frame which is a straight rectangular.

[0065] It should be noted that the side of the straight fixed end 34 and the straight swing end 35 close to each other is fixedly connected with a plurality of guide plates 36, and the guide plates 36 as a whole are inclined trapezoidal with narrow top and wide bottom. The center position of the side wall of the straight swing end 35 is fixedly connected with a support shaft 37, and the straight swing end 35 is rotatably connected with the support frame 12 through the support shaft 37. The side wall of the support shaft 37 is uniformly fixedly connected with a plurality of soft shaft pads 38, the soft shaft pads 38 are all made of rubber material, and the two sides of the soft shaft pads 38 are fixedly connected to the side wall of the support frame 12.

[0066] It should be noted that the feeding frame cooperatively enclosed by the straight fixed end 34 and the straight swing end 35 has a core adaptive scene for conveying small-specification mine raw materials, and the specific structural matching relationship is as follows: Figure 8 As shown, the roller at the bottom of the inclined surface of the inclined support seat 26 forms a clamping contact with the bottom of the conveying groove body 11, and the support positioning at the bottom area provides a stable reference for subsequent inclination adjustment of the conveying groove body 11, and the upper fixed ring 29 is assembled above the side wall of the straight swing end 35, which can ensure that the driving force of the upper nut 28 is accurately transmitted to the upper area of the straight swing end 35, thereby providing efficient torque support for swing adjustment.

[0067] Further, as shown in the figure, Figure 10 The outer wall helical groove of the lower threaded shaft 23 and the outer wall helical groove of the upper threaded shaft 27 have opposite helical directions, which makes the two threaded shafts rotate synchronously under the driving of the driving motor 21, and based on the helical transmission characteristics of the ball screw, the lower nut 24 and the upper nut 28 matched with the outer wall respectively have opposite movement directions along the axial direction: the lower nut 24 moves away from the driving motor 21 along the lower threaded shaft 23, while the upper nut 28 moves towards the driving motor 21 along the upper threaded shaft 27. At the same time, the pitch size of the outer wall helical groove of the lower threaded shaft 23 is larger than that of the outer wall helical groove of the upper threaded shaft 27, and combined with the transmission law that "the axial displacement under unit speed is positively related to the pitch" of the ball screw, under the condition that the driving motor 21 outputs the same speed and acts for the same time, the moving amplitude of the lower nut 24 matched with the lower threaded shaft 23 along the axial direction will be greater than that of the upper nut 28 matched with the upper threaded shaft 27, thereby providing displacement adaptation for the differential adjustment of the conveying groove body 11 and the feeding frame when conveying small-specification raw materials.

[0068] Specifically, the embodiment mainly aims at small-sized mine raw material conveying, the power transmission basic logic is consistent with that of embodiment one, and the core difference lies in the movement direction of the lower nut 24 and the upper nut 28. The specific working process is as follows:

[0069] First, to adapt to the needs of small-sized raw material centralized and efficient conveying, the driving motor 21 is started in advance, the output end drives the middle layer belt pulley of the transmission member 22 to rotate, and through the synchronous drive of the upper and lower layer belt pulleys and the corresponding fixed lower threaded shaft 23 and upper threaded shaft 27, the synchronous rotation is realized; because the spiral grooves on the outer walls of the two threaded shafts are opposite and both form a ball screw structure with the corresponding nuts, when rotating synchronously, they move in opposite directions: the lower nut 24 moves away from the driving motor 21 along the lower threaded shaft 23, and the upper nut 28 moves towards the driving motor 21 along the upper threaded shaft 27. At the same time, due to the influence of the larger pitch of the lower threaded shaft 23 than that of the upper threaded shaft 27, the axial movement amplitude of the lower nut 24 is still greater than that of the upper nut 28 under the same speed and action time, which provides displacement support for subsequent differentiated adjustment.

[0070] In terms of adjusting the inclination angle of the conveying groove body 11: the lower nut 24 drives the outer wall fixed lower fixed ring 25 to move away from the driving motor 21 synchronously, and then drags the inclined surface support seat 26 to slide smoothly along the support frame 12; under this working condition, the rollers on the inclined surface of the inclined surface support seat 26 at the bottom are connected with the bottom of the conveying groove body 11, and the adjustment reference is stabilized by the bottom support positioning. With the movement of the inclined surface support seat 26, the support height of the inclined surface of the inclined surface support seat 26 to the conveying groove body 11 gradually increases, and finally the inclination angle of the conveying groove body 11 increases. This adjustment can take advantage of the strong flowability of small-sized raw materials to speed up the sliding speed of the raw materials in the groove, avoid the accumulation and blockage caused by the small particles and insufficient gravity, and at the same time, the roller design can still greatly reduce the friction resistance between the inclined surface support seat 26 and the groove bottom wall, ensure that there is no jamming during the inclination angle adjustment process, and protect the components from wear and tear.

[0071] In terms of reducing the feeding space of the feeding module 3: the upper nut 28 drives the outer wall fixed upper fixed ring 29 to move synchronously towards the driving motor 21, because the upper fixed ring 29 is assembled above the side wall of the straight face swing end 35, the driving force can be accurately transmitted to the upper area of the straight face swing end 35, forming a high efficiency torque rotating around the support shaft 37, promoting the straight face swing end 35 to swing towards the straight face fixed end 34, and the straight cylinder rectangular feeding frame feeding space cooperatively enclosed by the two is reduced, effectively avoiding the scattering of small size raw materials due to excessive space; during this period, the guide plate 36 on the side of the straight face fixed end 34 and the straight face swing end 35 can further guide the raw materials to the center area of the conveying groove body 11, and strengthen the uniformity of the material concentration; at the same time, the rubber soft shaft pad 38 on the side wall of the support shaft 37 can buffer the impact when the straight face swing end 35 swings, reduce vibration noise, and also prevent mine dust from entering the shaft body to affect the rotation flexibility, prolong the service life of the component.

[0072] Finally, through the synchronous driving of the driving motor 21, the device completes the linkage adjustment of "increasing the inclination angle of the conveying groove body 11 + reducing the feeding space of the feeding module 3", which not only realizes the rapid conveying of small size raw materials by means of large inclination angle, but also guarantees the concentration of raw materials through the cooperation of reducing the feeding space and the guide plate 36, perfectly adapts to the uniformity requirements of small size mine raw materials, and the buffering and sealing design of the rubber soft shaft pad 38 further improves the running stability and component durability of the device, reducing the later operation and maintenance cost.

[0073] Embodiment three: a uniform material method for mine machinery, comprising the following steps:

[0074] S1: uniform material mechanism preparation: check whether each component of the rack main body 1 is intact, including whether the conveying groove body 11 is installed stably, to ensure that the inclination angle meets the material conveying requirements, so as to prevent equipment operation abnormity or uneven material conveying during the uniform material process;

[0075] S2: uniform material parameter adjustment: select the uniform material program matched with the current material characteristics, set the uniform material parameters, including vibration frequency, amplitude, and inclination angle of the conveying groove body 11, to ensure that the material uniform conveying requirements are met, and avoid material accumulation or excessive conveying due to parameter mismatch;

[0076] S3: uniform material operation: start the equipment, the bottom vibration motor makes the conveying groove body 11 vibrate; under the action of groove vibration, the material moves forward along the conveying groove body 11, and uniformly disperses under the vibration inertia force, the shock absorbing spring buffers the vibration impact, maintains stable vibration of the equipment, and ensures that the material is uniformly and continuously conveyed to the next process;

[0077] S4: end of uniform material: after the delivery is completed, the equipment is stopped, at this time, it is checked whether there is residual material in the delivery groove 11, if there is, it is cleaned, at the same time, it is checked whether the temperature rise of the vibration motor is normal, whether the damping spring is loose, after the equipment is completely stationary, necessary part maintenance or maintenance is carried out, and preparation is made for the next uniform material operation.

[0078] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and spirit of the application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A material leveling device for a mining machine, comprising a frame body (1) internally fitted with a conveying groove body (11) for carrying and conveying mining raw materials, characterized in that: The side of the rack body (1) is equipped with a driving module (2), and the upper part of the rack body (1) is provided with a feeding module (3) corresponding to the feeding end of the conveying groove (11); The feeding module (3) can adapt to the conveying requirements of different specifications of mine raw materials, and is linked and controlled through the driving module (2): when the equipment conveys large-specification mine raw materials, the driving module (2) can drive the inclination angle of the conveying groove (11) to be reduced, and at the same time drive the discharge port of the feeding module (3) to be in an expanded state, thereby increasing the conveying space thereof, adapting to the falling and conveying requirements of large-specification raw materials; when the equipment conveys small-specification mine raw materials, the driving module (2) can drive the inclination angle of the conveying groove (11) to be increased, and at the same time drive the discharge port of the feeding module (3) to be in a contracted state, thereby reducing the conveying space thereof, and ensuring the concentration and efficient conveying of small-specification raw materials; The feeding module (3) comprises a slope fixed end (31) fixedly connected to the side wall of the support frame (12), the side wall of the slope fixed end (31) is slidably connected with a slope moving end (32), and the slope moving end (32) is slidably connected with the side wall of the support frame (12); a plurality of convex spherical points (33) are fixedly connected to the side of the slope fixed end (31) and the side of the slope moving end (32) which are close to each other; and the slope fixed end (31) and the slope moving end (32) cooperatively form a complete feeding frame, which has a funnel shape with a wide upper part and a narrow lower part, and is used for conveying large-specification mine raw materials. The feeding module (3) further comprises a straight face fixed end (34) fixedly connected to the side wall of the support frame (12), and a straight face swinging end (35) is mounted on the side wall of the straight face fixed end (34); and the straight face fixed end (34) and the straight face swinging end (35) cooperatively form a complete feeding frame, which has a straight rectangular shape, and is used for conveying small-specification mine raw materials.

2. The material leveling device for a mining machine according to claim 1, characterized in that: The side wall of the rack body (1) is equipped with a support frame (12), and the driving module (2) comprises a driving motor (21) mounted in the support frame (12).

3. The material leveling device for a mining machine according to claim 2, characterized in that: The transmission member (22) comprises a belt and a plurality of belt pulleys, the belt pulleys are arranged in an upper, middle and lower three-layer distribution along the same vertical plane, the belt pulley located in the middle layer is controlled by the output end of the driving motor (21), the side wall of the lower belt pulley is fixedly connected with a lower threaded shaft (23), the outer wall of the lower threaded shaft (23) is threadedly connected with a lower nut (24), a ball screw structure is formed between the lower threaded shaft (23) and the lower nut (24), and the outer wall of the lower nut (24) is fixedly connected with a lower fixed ring (25), and the side wall of the lower fixed ring (25) is mounted with a slope support seat (26).

4. The material leveling device for a mining machine according to claim 3, characterized in that: The inclined surface support seat (26) is in sliding connection with the support frame (12), the inclined surface support seat (26) is in trapezoidal shape as a whole, and a plurality of rolling shafts are uniformly connected to the inclined surfaces of the inclined surface support seat (26), and the inclined surfaces of the inclined surface support seat (26) are in a state of adhesion with the bottom wall of the rack body (1).

5. The material leveling device for a mining machine of claim 2, wherein: The side wall of the upper belt pulley of the transmission member (22) is fixedly connected with an upper threaded shaft (27), the outer wall of the upper threaded shaft (27) is threadedly connected with an upper nut (28), a ball screw structure is formed between the upper threaded shaft (27) and the upper nut (28), and the outer wall of the upper nut (28) is fixedly connected with an upper fixed ring (29).

6. The material leveling device for a mining machine of claim 1, wherein: The straight surface fixed end (34) and the straight surface swing end (35) are fixedly connected with a plurality of guide plates (36) on the side close to each other, and the guide plates (36) are in the shape of an inclined trapezoid with the upper part being narrow and the lower part being wide.

7. The material leveling device for a mining machine of claim 1, wherein: The center position of the side wall of the straight surface swing end (35) is fixedly connected with a support shaft (37), the straight surface swing end (35) is in rotary connection with the support frame (12) through the support shaft (37), and the side walls of the support shaft (37) are uniformly fixedly connected with a plurality of soft shaft pads (38), the soft shaft pads (38) are all made of rubber material, and the two sides of the soft shaft pads (38) are fixedly connected to the side walls of the support frame (12).

8. A method for homogenizing material for a mining machine, applied to the homogenizing device for a mining machine according to any one of claims 1-7, characterized in that: The following steps are included: S1: uniform material mechanism pre-preparation: check whether each part of the rack body (1) is intact, including whether the conveying groove body (11) is installed stably, ensure that the inclination angle meets the material conveying requirements, so as to prevent abnormal equipment operation or uneven material conveying during the uniform material process; S2: uniform material parameter adjustment: select the uniform material program matched with the current material characteristics, set the uniform material parameters, including the vibration frequency, amplitude, and conveying groove body (11) inclination angle, to ensure that the material uniform conveying requirements are met, and avoid material accumulation or too fast conveying due to parameter mismatch; S3: uniform material running operation: start the equipment, the bottom vibration motor makes the conveying groove body (11) vibrate; under the action of the vibration inertia force, the material moves forward along the conveying groove body (11), and at the same time, the shock absorbing spring buffers the vibration impact, maintains stable vibration of the equipment, and ensures that the material is uniformly and continuously conveyed to the next process; S4: uniform material end: after conveying, stop the equipment operation, check whether there is residual material in the conveying groove body (11) at this time, if there is, clean it up, check whether the temperature rise of the vibration motor is normal and whether the shock absorbing spring is loose, and after the equipment is completely stationary, perform part maintenance to prepare for the next uniform material operation.

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