CN115025980A - Mine mining is with intelligent automatic split type feeding device - Google Patents
Mine mining is with intelligent automatic split type feeding device Download PDFInfo
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- CN115025980A CN115025980A CN202210712144.4A CN202210712144A CN115025980A CN 115025980 A CN115025980 A CN 115025980A CN 202210712144 A CN202210712144 A CN 202210712144A CN 115025980 A CN115025980 A CN 115025980A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to the technical field of material conveying devices, in particular to an intelligent automatic split type material conveying device for mining in mines. According to the invention, through the arrangement of the stepped sieve plate, the material sieving holes, the sieve screen and the particle conveying belt, conveyed ore materials can be subjected to vibration screening, ores are shaken through high-frequency vibration, and classified screening is carried out according to the size of the second spring, so that manual screening by workers is not required, the screening and collecting efficiency of the ores is improved through a simple structure, and the collecting progress of the whole ores is improved.
Description
Technical Field
The invention relates to the technical field of material conveying devices, in particular to an intelligent automatic split type material conveying device for mining in mines.
Background
The ore is because the motion of crust of earth adds the mineral aggregate that rock morals and manners deposit and appear, need go to exploit according to daily life and industrial demand in the middle of, and the exploitation generally adopts the mode of blasting to let the stone in a slice ore district divide into parts and collects, and collect at current device and can't carry out classified filtration with the ore according to the size and collect, a lot of ore material that differ in size and tiny crushed aggregates dust that appear in the collection process like this can need the staff to carry out manual separation, thereby greatly increased staff's work content can lead to the collection efficiency of ore to hang down, the collection of ore is not brought into to the staff can generally clear up tiny crushed aggregates dust at the manual in-process staff that separates, can lead to some wasting of resources like this.
Disclosure of Invention
The invention aims to provide an intelligent automatic split type conveying device for mine mining, which solves the problems that the conventional device for collecting ores in the background art cannot classify, filter and collect the ores one by one, so that a lot of ore materials with different sizes and fine crushed material dust generated in the collecting process can be manually separated by workers, the working content of the workers is greatly increased, and the ore collecting efficiency is low.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a mine mining is with split type feeding device of intelligent automation, includes:
the device comprises a device main body, the device main body comprises a shell, a power generation device box is connected to the outer wall of the left side of the shell, a motor is arranged inside the power generation device box, fixed blocks are connected to two ends of the outer walls of two sides of the shell, the number of the fixed blocks is four, supporting legs are arranged at the bottoms of the four fixed blocks, a bottom plate is arranged at the bottoms of the four supporting legs, first springs are connected to the top ends of the four supporting legs, the top ends of the four first springs are connected to the fixed blocks, connecting rods are arranged on the back surface of the shell, the number of the connecting rods is two, a third conveyor belt is movably connected to the top ends of the inner sides of the two connecting rods, movable rods are arranged on the front surface of the shell, the number of the movable rods is two, first conveyor belts are movably connected to the top ends of the inner sides of the two movable rods, and a second conveyor belt is arranged at the bottom end of the first conveyor belt, two sides of the second conveyor belt are movably connected to the movable rod;
screening mechanism, screening mechanism includes cascaded sieve, cascaded sieve sets up the inside at the shell, the both sides of cascaded sieve are connected on the inner wall of shell, the bottom of cascaded sieve is provided with the screen cloth, and the four sides of screen cloth all connect on the inner wall of shell, the jack has been seted up on the position of the correspondence of the back screen cloth of shell, and the jack extends to the inside of screen cloth always, sliding insertion has the regulating plate in the jack, the surface of regulating plate is evenly seted up porosely, and the hole runs through the regulating plate, the sieve material hole has all evenly been seted up on the top outer wall of cascaded sieve, and the sieve material hole runs through cascaded sieve.
Preferably, four baffles are arranged on the outer sides of the first springs, and the inner sides of the top ends of the four baffles are connected to the outer sides of the fixed blocks.
Preferably, the top ends of the first step and the second step of the stepped sieve plate are connected with seven limiting rods, and the number of the limiting rods can be adjusted according to the ore mining size.
Preferably, the bottom of screen cloth evenly is provided with square dead lever, and the both sides of square dead lever are connected on the inner wall of shell.
Preferably, the inboard of the bottom baffle of shell is provided with the granule transmission band, and the positive both sides of granule transmission band all swing joint in the bottom of movable rod, the back both sides of granule transmission band all swing joint in the bottom of connecting rod.
Preferably, the back top of first conveyer belt is provided with first buffering mouth, the back of first buffering mouth inserts on the outer wall of shell, and first buffering mouth extends to the inside of shell, the bottom is laminated with the top of shell mutually behind the cascaded sieve inserted the shell, the bottom of first buffering mouth is provided with the second buffering mouth, the positive bottom of second buffering mouth sets up the top at the second conveyer belt back, the back of second buffering mouth inserts inside the shell, and the back bottom and the screen cloth top of second buffering mouth laminate mutually.
Preferably, the first conveyor belt, the second conveyor belt, the third conveyor belt and the particle conveyor belt are provided with partition plates on two sides.
Preferably, be connected with the second spring on the bottom outer wall of shell, and the quantity of second spring is four, four the position distribution of second spring is in the four corners of bottom outer wall, the corresponding position of the bottom second spring of shell is provided with the bradyseism piece, and the top of bradyseism piece is seted up slottedly, four the bottom of second spring is inserted and is connected on the bottom inner wall of bradyseism piece.
Compared with the prior art, the invention has the beneficial effects that:
1. through being provided with cascaded sieve, sieve material hole, screen cloth, granule transmission band, can shake the screening with the ore material who carries down, shake the ore through high frequency vibrations and classify the screening through the size of second spring with the general size of volume, do not need the staff to carry out manual screening, through simple structure with the screening collection efficiency improvement of ore, make the collection progress of whole ore promote.
2. Through being provided with bradyseism piece, second spring, will put in order a frequency when whole machinery shakes and control and alleviate, prevent to carry out the condition that high frequency vibrations lead to the machine to appear the skew for a long time, avoid appearing the condition that collapses behind the mechanical skew, cause the hidden danger to staff's personal safety.
3. Through being provided with first buffering mouth, second buffering mouth, the too high ore that leads to the ejection of compact time of frequency of can appearing colliding everywhere produces the striking harm to first conveyer belt and second conveyer belt when vibrations screening inevitably, consequently designs first buffering mouth and second buffering mouth and carries the transport on getting into first conveyer belt and second conveyer belt to the ore of selecting the buffering.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic side sectional view of the structure of the present invention;
FIG. 3 is a schematic side view of the structure of the present invention;
FIG. 4 is a schematic top view of the structure of the present invention;
FIG. 5 is a schematic rear view of the structure of the present invention;
fig. 6 is an enlarged schematic cross-sectional view of the structure at a in fig. 2 according to the present invention.
In the figure: 01. a device main body; 110. a housing; 111. a power generation device case; 112. a base plate; 113. a first conveyor belt; 114. a second conveyor belt; 115. a third conveyor belt; 116. a connecting rod; 117. supporting legs; 118. a baffle plate; 119. a fixed block; 120. a first spring; 02. a screening mechanism; 210. a stepped sieve plate; 211. a limiting rod; 212. screening a screen; 213. an adjusting plate; 214. a square fixing rod; 215. a particle transfer belt; 216. a first buffer port; 217. a second buffer port; 218. a shock absorption block; 219. a second spring; 220. and (4) screening holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, an embodiment of the present invention is shown:
the utility model provides a mine mining is with split type feeding device of intelligent automation, includes:
all electrical devices used in the present invention are commercially available products, and the principle thereof is well known to those skilled in the art, and thus will not be described herein.
The device main body 01 comprises a shell 110, a power generation device box 111 is connected to the outer wall of the left side of the shell 110, a motor is arranged inside the power generation device box 111, fixed blocks 119 are connected to two ends of the outer walls of two sides of the shell 110, the number of the fixed blocks 119 is four, supporting legs 117 are arranged at the bottom ends of the four fixed blocks 119, a bottom plate 112 is arranged at the bottom ends of the four supporting legs 117, first springs 120 are connected to the top ends of the four supporting legs 117, the top ends of the four first springs 120 are connected to the fixed blocks 119, connecting rods 116 are arranged on the back side of the shell 110, the number of the connecting rods 116 is two, third conveyor belts 115 are movably connected to the top ends of the inner sides of the two connecting rods 116, movable rods are arranged on the front side of the shell 110, the top ends of the inner sides of the two movable rods are movably connected to first conveyor belts 113, and second conveyor belts 114 are arranged at the bottom ends of the first conveyor belts 113, two sides of the second conveyor belt 114 are movably connected to the movable rod;
screening mechanism 02, screening mechanism 02 includes cascaded sieve 210, cascaded sieve 210 sets up the inside at shell 110, the both sides of cascaded sieve 210 are connected on the inner wall of shell 110, the bottom of cascaded sieve 210 is provided with screen cloth 212, and the four sides of screen cloth 212 all connect on the inner wall of shell 110, seted up the jack on the corresponding position of the back screen cloth 212 of shell 110, and the jack extends to the inside of screen cloth 212 always, sliding insertion has regulating plate 213 in the jack, the surface of regulating plate 213 is evenly seted up porosely, and the hole runs through regulating plate 213, sieve material hole 220 has all evenly been seted up on the top outer wall of cascaded sieve 210, and sieve material hole 220 runs through cascaded sieve 210, can vibrate the screening with the ore material of carrying, separate the ore through the high frequency vibrations, carry out the seepage screening with the volume general size through the size of sieve material hole 220, do not need the staff to carry out manual screening, the ore screening and collecting efficiency is improved through a simple structure, and the whole ore collecting working progress is improved.
Further, the outside of four first springs 120 all is provided with baffle 118, and the top inboard of four baffles 118 all connects on the outside of fixed block 119, and the machine is because long-term vibrations may lead to the situation that breaks away from to appear in the first spring 120 that both ends vibrations required used, and the setting of baffle 118 is in order to carry on spacingly with first spring 120, avoids appearing the situation that breaks away from after long-term the use, plays certain guarantee effect for machine safety.
Further, cascaded sieve 210's first ladder all is connected with gag lever post 211 with the second ladder top, and the quantity of gag lever post 211 is seven, the quantity of gag lever post 211 can be adjusted according to the ore mining roughly big or small, when carrying out the vibrations screening, the surface during cascaded sieve 210 is the slope, that can appear shaking amplitude too big ore velocity of motion too fast and result in the ore not carrying out too much stay and appear screening incomplete condition, gag lever post 211 is exactly for letting the speed of whole ore motion limited, let the ore effectively filter in gag lever post 211 department stay, the efficiency of screening has further been improved, the adjustable suitability that has improved whole screening in gag lever post 211's space.
Further, the bottom of screen cloth 212 evenly is provided with square dead lever 214, and the both sides of square dead lever 214 are connected on the inner wall of shell 110, and the screening of the in-process ore of machine operation can produce certain gravity and lead to the crooked sinking of screen cloth 212 to reduce the efficiency of screening, and square dead lever 214 that the bottom is connected can support screen cloth 212, alleviates the gravity bending that the ore whereabouts brought, guarantees screening efficiency.
Further, the inboard of the bottom baffle 118 of shell 110 is provided with granule transmission band 215, and the equal swing joint in the bottom of movable rod in the front both sides of granule transmission band 215, the equal swing joint in the bottom of connecting rod 116 in the back both sides of granule transmission band 215, what select at last step is all with tiny piece and dust as leading, the in-process staff of general manual separation generally can clear up tiny crushed aggregates dust and not bring in the collection of ore owing to waste time and energy's the reason, can lead to partly wasting of resources like this, granule transmission band 215 can carry out the automatic transport with the last screening material that is difficult for the clearance and concentrate the recovery at last, guarantee certain utilization of resources.
Further, a first buffer port 216 is arranged at the top end of the back side of the first conveyor belt 113, the back side of the first buffer port 216 is inserted into the outer wall of the shell 110, the first buffer port 216 extends into the shell 110, the bottom end of the stepped sieve plate 210 inserted into the shell 110 is attached to the top end of the shell 110, a second buffer port 217 is arranged at the bottom end of the first buffer port 216, the front bottom end of the second buffer port 217 is arranged at the top end of the back side of the second conveyor belt 114, the back side of the second buffer port 217 is inserted into the shell 110, the bottom end of the back side of the second buffer port 217 is attached to the top end of the screen cloth 212, the ore jumping amplitude caused by the vibration frequency problem is high during vibration screening, the problem of inertial collision occurs at the discharge port, therefore, the damage caused by the ore inertial collision occurs on the surfaces of the first conveyor belt 113 and the second conveyor belt 114, and therefore, the first buffer port 216 and the second buffer port 217 are designed to buffer the ore screened out to move and enter the first conveyor belt 113 and a second conveyor belt 114, and protects the equipment to the maximum extent.
Furthermore, the two sides of the first conveyor belt 113, the second conveyor belt 114, the third conveyor belt 115 and the particle conveyor belt 215 are provided with partition plates, the possibility of loss in the ore conveying process due to the fact that the ore can roll around due to the irregular shape in the conveying process can be guaranteed by the partition plate structure, and the ore can not roll down to the first conveyor belt 113, the second conveyor belt 114, the third conveyor belt 115 and the particle conveyor belt 215 in the ore conveying process, so that loss of the ore in the conveying process is prevented.
Further, be connected with second spring 219 on shell 110's the bottom outer wall, and second spring 219's quantity is four, four second spring 219's position distributes in the four corners of bottom outer wall, shell 110's bottom second spring 219's corresponding position is provided with bradyseism piece 218, and the top of bradyseism piece 218 is seted up slottedly, four second spring 219's bottom is inserted and is connected on the bottom inner wall of bradyseism piece 218, control vibration frequency and alleviate when whole machinery shakes, prevent to carry out the condition that high frequency vibrations lead to the machine to appear squinting for a long time, the condition of collapsing after avoiding appearing mechanical excursion, cause the hidden danger to staff's personal safety.
The working principle is as follows: firstly, a motor inside a power generation device box 111 is electrified, the whole shell 110 can vibrate after being electrified, ores can enter the shell 110 through a third conveyor belt 115 to perform first-step vibration screening on a stepped sieve plate 210, ores with smaller volume fall onto a sieve screen 212 through the stepped sieve plate 210, a limiting rod 211 at the top end of the stepped sieve plate 210 can limit to ensure sufficient screening, ores falling onto the sieve screen 212 can perform vibration screening again, the size of a sieve hole of the sieve screen 212 can be adjusted by pulling an adjusting plate 213, ores screened for the first time and ores screened for the second time can be buffered through a first buffer hole 216 and a second buffer hole 217 at the front end and finally fall onto a first conveyor belt 113 and a second conveyor belt 114 to be conveyed and classified and screened, fine particles and dust screened from the sieve screen 212 can fall onto a particle conveyor belt 215 to be conveyed, and a second spring 219 at the bottom end starts to perform vibration damping while the machine vibrates, the bump stop 218 positionally fixes the second spring 219.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a mine mining is with split type feeding device of intelligent automation which characterized in that includes:
the device comprises a device body (01), wherein the device body (01) comprises a shell (110), a power generation device box (111) is connected to the outer wall of the left side of the shell (110), a motor is arranged in the power generation device box (111), fixed blocks (119) are connected to two ends of the outer walls of two sides of the shell (110), the number of the fixed blocks (119) is four, four supporting legs (117) are arranged at the bottom ends of the fixed blocks (119), a bottom plate (112) is arranged at the bottom ends of the four supporting legs (117), first springs (120) are connected to the top ends of the four supporting legs (117), the top ends of the four first springs (120) are connected to the fixed blocks (119), connecting rods (116) are arranged on the back of the shell (110), the number of the connecting rods (116) is two, and a third conveyor belt (115) is movably connected to the top ends of the inner sides of the two connecting rods (116), the front surface of the shell (110) is provided with two movable rods, the top ends of the inner sides of the two movable rods are movably connected with a first conveyor belt (113), the bottom end of the first conveyor belt (113) is provided with a second conveyor belt (114), and two sides of the second conveyor belt (114) are movably connected to the movable rods;
a screening mechanism (02), the screening mechanism (02) comprising a stepped screen deck (210), the stepped sieve plate (210) is arranged in the shell (110), two sides of the stepped sieve plate (210) are connected on the inner wall of the shell (110), the bottom end of the stepped sieve plate (210) is provided with a screen (212), four sides of the screen (212) are all connected on the inner wall of the shell (110), the corresponding position of the screen (212) on the back of the shell (110) is provided with a jack, the insertion holes extend to the inner part of the screen (212), adjusting plates (213) are inserted in the insertion holes in a sliding manner, holes are uniformly formed in the surfaces of the adjusting plates (213), and the hole runs through regulating plate (213), all evenly seted up sieve material hole (220) on the top outer wall of cascaded sieve board (210), and sieve material hole (220) run through cascaded sieve board (210).
2. The intelligent automatic split type conveying device for mine mining according to claim 1, characterized in that: the outer sides of the four first springs (120) are provided with baffle plates (118), and the inner sides of the top ends of the four baffle plates (118) are connected to the outer side of the fixing block (119).
3. The intelligent automatic split type conveying device for mine mining according to claim 1, characterized in that: the top ends of the first step and the second step of the stepped sieve plate (210) are connected with limiting rods (211), the number of the limiting rods (211) is seven, and the number of the limiting rods (211) can be adjusted according to the ore mining size.
4. The intelligent automatic split type conveying device for mine mining according to claim 1, characterized in that: the bottom of screen cloth (212) evenly is provided with square dead lever (214), and the both sides of square dead lever (214) are connected on the inner wall of shell (110).
5. The intelligent automatic split type conveying device for mine mining according to claim 1, characterized in that: the inboard of bottom end baffle (118) of shell (110) is provided with granule transmission band (215), and the front both sides of granule transmission band (215) all swing joint in the bottom of movable rod, the back both sides of granule transmission band (215) all swing joint in the bottom of connecting rod (116).
6. The intelligent automatic split type conveying device for mine mining according to claim 1, characterized in that: the back top of first conveyer belt (113) is provided with first buffering mouth (216), the back of first buffering mouth (216) inserts on the outer wall of shell (110), and inside that first buffering mouth (216) extend to shell (110), the top that bottom and shell (110) were laminated mutually behind cascaded sieve (210) inserted shell (110), the bottom of first buffering mouth (216) is provided with second buffering mouth (217), the positive bottom of second buffering mouth (217) sets up the top at second conveyer belt (114) back, the back of second buffering mouth (217) is inserted inside shell (110), and the back bottom of second buffering mouth (217) is laminated mutually with screen cloth (212) top.
7. The intelligent automatic split type conveying device for mine mining according to claim 1, characterized in that: the two sides of the first conveyor belt (113), the second conveyor belt (114), the third conveyor belt (115) and the particle conveyor belt (215) are all provided with partition plates.
8. The intelligent automatic split type conveying device for mine mining according to claim 1, characterized in that: be connected with second spring (219) on the bottom outer wall of shell (110), and the quantity of second spring (219) is four, four the position of second spring (219) distributes in the four corners of bottom outer wall, the corresponding position of bottom second spring (219) of shell (110) is provided with bradyseism piece (218), and the top of bradyseism piece (218) is seted up slottedly, four the bottom of second spring (219) inserts to be connected on the bottom inner wall of bradyseism piece (218).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210712144.4A CN115025980A (en) | 2022-06-22 | 2022-06-22 | Mine mining is with intelligent automatic split type feeding device |
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| CN202210712144.4A CN115025980A (en) | 2022-06-22 | 2022-06-22 | Mine mining is with intelligent automatic split type feeding device |
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| CN215612272U (en) * | 2021-02-01 | 2022-01-25 | 中滦科技股份有限公司 | Automatic multi-stage screening device for coal |
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