CN109236289A - A kind of coal mining crushing device - Google Patents
A kind of coal mining crushing device Download PDFInfo
- Publication number
- CN109236289A CN109236289A CN201810894916.4A CN201810894916A CN109236289A CN 109236289 A CN109236289 A CN 109236289A CN 201810894916 A CN201810894916 A CN 201810894916A CN 109236289 A CN109236289 A CN 109236289A
- Authority
- CN
- China
- Prior art keywords
- coal mining
- fixedly connected
- rotary cylinder
- motor
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/20—Mineral freed by means not involving slitting
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
- E21C31/02—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for cutting or breaking-down devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
Abstract
The invention discloses a kind of coal mining crushing devices, including sliding rail, sliding slot, support plate, fixing bolt, rotation axis, the first rotary cylinder, the first bevel gear, the first motor, placing groove, the second bevel gear, slider box, fixing axle, the second rotary cylinder, linear motor, fixed block, fixed column, idler wheel, Rotational Cylindrical, link block, connecting rod, fixed link, electric pushrod, pressing plate, set casing, the second motor, tool apron, coal mining knife, fixing seat, fixed strip, baffle, conveyer belt and third motor.This kind of coal mining is simple with crushing device structure, novel in design, the placement location of device is adjusted convenient for worker, it is convenient for that the device after adjusting is carried out to stablize fixation simultaneously, ensure that coal mining knife carries out stablizing exploitation, and it is adjusted convenient for the position of coal mining knife, the use scope of device is improved, stablizes convenient for linear motor and slider box is pushed to stablize movement, is easy to use.
Description
Technical field
The present invention relates to a kind of crushing device, specifically a kind of coal mining crushing device belongs to coal mining application
Technical field.
Background technique
Coal mine is the proportional space that the mankind are excavated when digging is rich in the geological stratification for having coal, generally includes tunnel, well
Cave and face etc..Coal is most important solid fuel, is one kind of kaustobilite.It was given birth to by certain geological epoch
Long plant in great numbers is gradually accumulated into thick-layer in suitable geological environment, and is buried in water-bed or silt, and process is very long
Geochronic geochronic natural incoalation and formed.
At present in the recovery process of coal mine, some coal mining devices are not easy to mobile and fixed, shadow in coal mine
The production efficiency of coal mine is rung, while in recovery process, coal mining range is smaller, the practicability of device can be greatly reduced, simultaneously
Coal after exploitation is not easy to be discharged, and increases the labor intensity of worker, while reducing the working efficiency of device, influences to use
Journey.Therefore, a kind of coal mining crushing device is proposed regarding to the issue above.
Summary of the invention
The object of the invention is that providing a kind of coal mining crushing device to solve the above-mentioned problems.
The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of coal mining crushing device, including sliding rail
And fixed block, the sliding rail opposite flank offers sliding slot, and sliding rail bottom is fixedly connected with support plate；The support plate
Between by rotation axis connection, and rotation axis surface be socketed the first rotary cylinder；First rotary cylinder side is equipped with and rotation axis
First bevel gear of socket；The sliding rail bottom, which is connected together, the first motor, and the first motor output shaft is socketed with
Two bevel gears；Second bevel gear engages connection with the first bevel gear；The sliding rail top surface offers placing groove, and puts
It sets slot inner wall surface and is fixedly connected with fixing axle；The fixing axle surface is socketed with the second rotary cylinder；
It is rotatably connected to slider box at the top of second rotary cylinder, and slider box opposite flank is fixedly connected with fixed column；Institute
It states fixed column surface and is socketed with the idler wheel for rolling connection with sliding slot；It is fixedly connected with fixed block at the top of the slider box, and slides
Frame side exports shaft end with the linear motor for being fixed on sliding rail top side and is fixedly connected；The fixed block side surface is fixed to be connected
It is connected to Rotational Cylindrical, and Rotational Cylindrical surface is socketed with link block；The link block side is fixedly connected with connecting rod, and connecting rod end
End is fixedly connected with set casing；The link block side is fixedly connected with electric pushrod by fixed frame, and electric pushrod exports
Shaft end is fixedly connected with pressing plate；The clamp surface is fixedly connected with the fixed link one end on link block surface；The set casing
Being connected together in one side surface has the second motor, and the second motor output shaft end is fixedly connected with tool apron；The tool apron
Surface is fixedly connected with coal mining knife；
The sliding rail side is fixedly connected by fixing seat with baffle, and one side bottom of baffle passes through fixed strip opposite with baffle one
Another baffle that side is placed in parallel is fixedly connected；Another described baffle outer surface is fixedly connected with third motor；It is described
Third motor output shaft surface is socketed with roller, and cylinder surface is rotatably connected to conveyer belt；Two baffle opposite faces
The same side is connected by shaft, and shaft surface is socketed with roller, and the roller of the shaft surface socket passes through conveyer belt and the
The roller rotation connection of three-motor output shaft surface socket.
Preferably, the sliding slot number is two, and is placed in parallel between two sliding slots.
Preferably, the support plate thread is connected with fixing bolt, and fixing bolt end is through support plate and first turn
Dynamic cylinder one end side surface fits closely.
Preferably, the first rotary cylinder number is two, and the first rotary cylinder is placed in parallel on sliding rail opposite sides side
Edge bottom.
Preferably, the second rotary cylinder number is several, and is equally spaced between adjacent second rotary cylinder.
Preferably, the coal mining knife number is several, and coal mining knife is in tool apron surface annular spread.
Preferably, the fixed link number is several, and the fixed link is closely pasted through link block with fixed block surface
It closes.
Preferably, the link block circular in cross-section structure, and several fixed links are distributed in link block surface annular.
Preferably, the set casing top surface is fixedly connected with handle.
Preferably, the baffle bottom is higher than the position of first rotary cylinder bottom.
The beneficial effects of the present invention are:
1. this kind of coal mining is simple with crushing device structure, novel in design, the placement position of device is adjusted convenient for worker
It sets, while convenient for carrying out stablizing fixation to the device after adjusting, ensureing that coal mining knife carries out stablizing exploitation, and open convenient for coal mine
The position for adopting knife is adjusted, and improves the use scope of device, is easy to use.
Slider box is pushed to stablize movement 2. stablizing convenient for linear motor, while by the second rotary cylinder of setting with cooperation
Under, the sliding friction of slider box and sliding rail can be greatly reduced, avoid the friction damage of slider box and sliding rail, extend making for device
With the service life, it is easy to use.
The coal after exploitation is conveyed 3. when in use, realizing, reduces the labor intensity of worker, is improved to exploitation
The transfer efficiency of coal afterwards saves the working time of worker, and practical value is higher, is suitble to promote the use of.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is the whole overlooking structure diagram of the present invention；
Fig. 3 attachment structure schematic diagram between baffle of the present invention；
Fig. 4 connect side structure schematic view with fixed link for connecting plate of the present invention.
In figure: 1, sliding rail, 101, sliding slot, 2, support plate, 3, fixing bolt, 4, rotation axis, the 5, first rotary cylinder, 6, first
Bevel gear, the 7, first motor, 8, placing groove, the 9, second bevel gear, 10, slider box, 11, fixing axle, the 12, second rotary cylinder,
13, linear motor, 14, fixed block, 15, fixed column, 16, idler wheel, 17, Rotational Cylindrical, 18, link block, 19, connecting rod, 20, fixation
Bar, 21, electric pushrod, 22, pressing plate, 23, set casing, the 24, second motor, 25, tool apron, 26, coal mining knife, 27, fixation
Seat, 28, fixed strip, 29, baffle, 30, conveyer belt, 31, third motor.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It please refers to shown in Fig. 1-4, a kind of coal mining crushing device, including sliding rail 1 and fixed block 14, the sliding rail
1 opposite flank offers sliding slot 101, and 1 bottom of sliding rail is fixedly connected with support plate 2, and the sliding rail 1 of setting is convenient for slider box
10 sliding；It is connected between the support plate 2 by rotation axis 4, and 4 surface of rotation axis is socketed the first rotary cylinder 5, setting turns
Moving axis 4 is convenient for the rotation of the first rotary cylinder 5；First rotary cylinder, 5 side is equipped with the first bevel gear 6 being socketed with rotation axis 4；
1 bottom of sliding rail, which is connected together, the first motor 7, and 7 output sleeve of the first motor is connected to the second bevel gear 9, setting
The first motor 7 convenient for driving the second bevel gear 9 rotation；Second bevel gear 9 engages connection with the first bevel gear 6,
The rotation of the first bevel gear 6 is driven convenient for the second bevel gear 9；1 top surface of sliding rail offers placing groove 8, and in placing groove 8
Wall surface is fixedly connected with fixing axle 11；11 surface of fixing axle is socketed with the second rotary cylinder 12, and the fixing axle 11 of setting is just
In driving the second rotary cylinder 12 rotation；
Slider box 10 is rotatably connected at the top of second rotary cylinder 12, and 10 opposite flank of slider box is fixedly connected with fixation
Column 15；15 surface of fixed column is socketed with the idler wheel 16 that connection is rolled with sliding slot 101, and the idler wheel 16 of setting can be greatly reduced
The friction of slider box 10 and sliding rail 1；Fixed block 14, and 10 side of slider box and fixation are fixedly connected at the top of the slider box 10
It exports shaft end in the linear motor 13 of 1 top side of sliding rail to be fixedly connected, the linear motor 13 of setting, convenient for driving slider box
10 sliding；14 side surface of fixed block is fixedly connected with Rotational Cylindrical 17, and 17 surface of Rotational Cylindrical is socketed with link block 18, if
The Rotational Cylindrical 17 set is convenient for the rotation of link block 18；18 side of link block is fixedly connected with connecting rod 19, and connecting rod 19
End is fixedly connected with set casing 23；18 side of link block is fixedly connected with electric pushrod 21 by fixed frame, and electronic
Push rod 21 exports shaft end and is fixedly connected with pressing plate 22, and the electric pushrod 21 of setting is convenient for promotion pressing plate 22；22 table of pressing plate
Face is fixedly connected with 20 one end of fixed link on 18 surface of link block；Being connected together in 23 1 side surface of set casing has the second electricity
Motivation 24, and the second motor 24 output shaft end is fixedly connected with tool apron 25, the second motor 24 of setting is convenient for driving knife
Seat 25 rotates；25 surface of tool apron is fixedly connected with coal mining knife 26；
1 side of sliding rail is fixedly connected by fixing seat 27 with baffle 29, and 29 1 side bottom of baffle by fixed strip 28 and
Another baffle 29 that 29 opposite side of baffle is placed in parallel is fixedly connected, and the baffle 29 of setting conveys coal convenient for conveyer belt 30
Charcoal；Another described 29 outer surface of baffle is fixedly connected with third motor 31；31 output shaft surface of the third motor set
It is connected to roller, and cylinder surface is rotatably connected to conveyer belt 30, the third motor 31 of setting, convenient for the rotation of conveyer belt 30；
Two described 29 opposite face the same sides of baffle are connected by shaft, and shaft surface is socketed with roller, the shaft surface socket
Roller by conveyer belt 30 and 31 output shaft surface of third motor socket roller be rotatablely connected.
101 number of sliding slot is two, and is placed in parallel between two sliding slots 101, ensure sliding slot 101 place it is compact,
Convenient for the rotation of idler wheel 16；The support plate 2 is threaded with fixing bolt 3, and 3 end of fixing bolt through support plate 2 with
First rotary cylinder, 5 one end side surface fits closely, convenient for turning for the first rotary cylinder 5；First rotary cylinder, 5 number is two,
And first rotary cylinder 5 be placed in parallel in 1 opposite sides edge bottom of sliding rail, convenient for the movement of sliding rail 1；Second rotary cylinder 12
Number is several, and is equally spaced between adjacent second rotary cylinder 12, ensures and places rationally between the second rotary cylinder 12, is convenient for
The sliding of slider box 10；26 number of coal mining knife is several, and coal mining knife 26 is in 25 surface annular of tool apron point
Cloth, ensure coal mining knife 26 place it is compact, convenient for exploitation；20 number of fixed link is several, and the fixed link 20 is passed through
It wears link block 18 to fit closely with 14 surface of fixed block, convenient for the fixation of link block 18；18 circular in cross-section of link block
Structure, and several fixed links 20 are distributed in 18 surface annular of link block, fix convenient for stablizing for link block 18；The set casing
23 top surfaces are fixedly connected with handle, convenient for the stabilization secured adjusted of set casing 23；29 bottom of baffle is higher than described the
The position of one rotary cylinder, 5 bottom, convenient for the rotation of the first rotary cylinder 5.
In the use of the present invention, the external control switch of the electric elements in the device and power supply are passed through starting first
First motor 7, the first motor 7 drive the rotation of the second bevel gear 9, drive 6 turns of the first bevel gear by the second bevel gear 9
Dynamic, the first bevel gear 6 drives the rotation of the first rotary cylinder 5 by rotation axis 4, then drives sliding rail 1 mobile by rotary cylinder, in turn
It adjusts sliding and is placed on suitable position, be fixed by fixing bolt 3, then set casing 23 is adjusted by handle and is moved
It is dynamic, and then the placement location of coal mining knife 26 is adjusted, it then pushes pressing plate 22 mobile by starting electric pushrod 21, passes through pressure
Plate 22 squeezes fixed link 20, fits closely fixed link 20 with 1 side surface of sliding rail, and then consolidates after the tune of coal mining knife 26 is connect
It is fixed, then by starting linear motor 13, drive slider box 10 on 12 surface of the second rotary cylinder by 13 output shaft of linear motor
It rolls, while starting the second motor 24 and third motor 31, drive coal mining knife 26 right by the second motor 24
Coal mine side is exploited along 1 direction of sliding rail, and the coal that coal mining knife 26 is exploited falls in 30 surface of conveyer belt, passes through third electricity
Motivation 31 drives conveyer belt 30 to be rotated, and then the coal for falling in 30 surface of conveyer belt is conveyed；It is opened along sliding rail 1
After adopting, then set casing 23 is adjusted by handle and is rotated along connecting rod 19, after the placement location for adjusting set casing 23, pressed
It is recycled according to aforesaid operations, and then convenient for being exploited to the coal seam of different height, to complete the recovery process of coal.
What the first motor 7, the second motor 24 and third motor 31 were all made of is constant speed Pty Ltd pin
The Y2 motor sold, support circuit can be provided by businessman.
The 5IK60GU straight line that linear motor 13 is sold using Dongguan City Shun Li Electromechanical Technology Co., Ltd of Alibaba
Motor, support circuit can be provided by businessman.
The XTL100 electric pushrod that electric pushrod 21 is sold using Long Xiang hardware flagship store, support circuit can be by quotient
Family provides.
It is related to circuit and electronic component and module is the prior art, those skilled in the art may be implemented completely,
Without superfluous words, the content that the present invention protects is not related to the improvement for software and method yet.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that by fall in claim with all in the meaning and scope of important document
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of coal mining crushing device, including sliding rail (1) and fixed block (14), it is characterised in that: the sliding rail (1)
Opposite flank offers sliding slot (101), and sliding rail (1) bottom is fixedly connected with support plate (2)；Between the support plate (2)
It is connected by rotation axis (4), and rotation axis (4) surface socket the first rotary cylinder (5)；First rotary cylinder (5) side is equipped with
With first bevel gear (6) of rotation axis (4) socket；Sliding rail (1) bottom is connected together and has the first motor (7), and first
Motor (7) output sleeve is connected to the second bevel gear (9)；Second bevel gear (9) engages connection with the first bevel gear (6)；
Sliding rail (1) top surface offers placing groove (8), and placing groove (8) inner wall surface is fixedly connected with fixing axle (11)；Institute
It states fixing axle (11) surface and is socketed with the second rotary cylinder (12)；
It is rotatably connected to slider box (10) at the top of second rotary cylinder (12), and slider box (10) opposite flank is fixedly connected
There are fixed column (15)；Fixed column (15) surface is socketed with the idler wheel (16) that connection is rolled with sliding slot (101)；The slider box
(10) top is fixedly connected with fixed block (14), and slider box (10) side and the straight-line electric for being fixed on sliding rail (1) top side
Machine (13) output shaft end is fixedly connected；Fixed block (14) side surface is fixedly connected with Rotational Cylindrical (17), and Rotational Cylindrical
(17) surface is socketed with link block (18)；Link block (18) side is fixedly connected with connecting rod (19), and connecting rod (19)
End is fixedly connected with set casing (23)；Link block (18) side is fixedly connected with electric pushrod (21) by fixed frame,
And electric pushrod (21) output shaft end is fixedly connected with pressing plate (22)；Pressing plate (22) surface and link block (18) surface
Fixed link (20) one end is fixedly connected；Being connected together in (23) one side surface of set casing has the second motor (24), and the
Two motor (24) output shaft end is fixedly connected with tool apron (25)；Tool apron (25) surface is fixedly connected with coal mining knife
(26)；
Sliding rail (1) side is fixedly connected by fixing seat (27) with baffle (29), and (29) one side bottom of baffle passes through admittedly
Determine item (28) and is fixedly connected with another baffle (29) that baffle (29) opposite side is placed in parallel；Another described baffle (29)
Outer surface is fixedly connected with third motor (31)；Third motor (31) the output shaft surface is socketed with roller, and roller
Surface pivots are connected with conveyer belt (30)；Two described baffle (29) opposite face the same sides are connected by shaft, and shaft surface
It is socketed with roller, the roller of the shaft surface socket is socketed by conveyer belt (30) and third motor (31) output shaft surface
Roller rotation connection.
2. a kind of coal mining crushing device according to claim 1, it is characterised in that: sliding slot (101) number
It is two, and is placed in parallel between two sliding slots (101).
3. a kind of coal mining crushing device according to claim 1, it is characterised in that: support plate (2) screw thread
It is connected with fixing bolt (3), and fixing bolt (3) end is close through support plate (2) and the first rotary cylinder (5) one end side surface
Fitting.
4. a kind of coal mining crushing device according to claim 1, it is characterised in that: first rotary cylinder (5)
Number is two, and the first rotary cylinder (5) is placed in parallel in sliding rail (1) opposite sides edge bottom.
5. a kind of coal mining crushing device according to claim 1, it is characterised in that: second rotary cylinder (12)
Number is several, and is equally spaced between adjacent second rotary cylinder (12).
6. a kind of coal mining crushing device according to claim 1, it is characterised in that: the coal mining knife (26)
Number is several, and coal mining knife (26) is in tool apron (25) surface annular spread.
7. a kind of coal mining crushing device according to claim 1, it is characterised in that: fixed link (20) number
For several, the fixed link (20) is fitted closely through link block (18) with fixed block (14) surface.
8. a kind of coal mining crushing device according to claim 1, it is characterised in that: the link block (18) is transversal
The rounded structure in face, and several fixed links (20) are distributed in link block (18) surface annular.
9. a kind of coal mining crushing device according to claim 1, it is characterised in that: at the top of the set casing (23)
Surface is fixedly connected with handle.
10. a kind of coal mining crushing device according to claim 1, it is characterised in that: baffle (29) bottom
Higher than the position of the first rotary cylinder (5) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810894916.4A CN109236289B (en) | 2018-08-08 | 2018-08-08 | Crushing device for coal mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810894916.4A CN109236289B (en) | 2018-08-08 | 2018-08-08 | Crushing device for coal mining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109236289A true CN109236289A (en) | 2019-01-18 |
| CN109236289B CN109236289B (en) | 2020-07-31 |
Family
ID=65071292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810894916.4A Expired - Fee Related CN109236289B (en) | 2018-08-08 | 2018-08-08 | Crushing device for coal mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109236289B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3463246A (en) * | 1966-12-28 | 1969-08-26 | Metabowerke Kg | Rotary percussive power tool with changeable drive |
| CN2537816Y (en) * | 2002-01-31 | 2003-02-26 | 李现文 | Cutting machine |
| CN2623448Y (en) * | 2003-04-29 | 2004-07-07 | 王新军 | Imitating handwork molding coal machine convenient for moving |
| CN201057046Y (en) * | 2007-01-27 | 2008-05-07 | 李君� | Support type lever manual coal digging machine |
-
2018
- 2018-08-08 CN CN201810894916.4A patent/CN109236289B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3463246A (en) * | 1966-12-28 | 1969-08-26 | Metabowerke Kg | Rotary percussive power tool with changeable drive |
| CN2537816Y (en) * | 2002-01-31 | 2003-02-26 | 李现文 | Cutting machine |
| CN2623448Y (en) * | 2003-04-29 | 2004-07-07 | 王新军 | Imitating handwork molding coal machine convenient for moving |
| CN201057046Y (en) * | 2007-01-27 | 2008-05-07 | 李君� | Support type lever manual coal digging machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109236289B (en) | 2020-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108150093B (en) | Screw rod adjusting type multi-dimensional drilling device for mine exploitation | |
| CN109955315A (en) | A kind of efficient feeding and perforating device for luggage processing | |
| CN204373945U (en) | A kind of sun power mining apparatus | |
| CN209952999U (en) | Cutting device for coal mine | |
| CN206265819U (en) | A kind of flat-top and Waste recovery structure for colliery wastes brick | |
| CN203889707U (en) | Cotton tape elastic tensioning device for corrugated paper production line | |
| CN109236289A (en) | A kind of coal mining crushing device | |
| CN109910099A (en) | Punch device is used in a kind of production of luggage | |
| CN211197591U (en) | Novel colliery electromechanical transmission is taut device | |
| CN100567701C (en) | Coal mining and digging machine | |
| CN209621205U (en) | Perforating device is used in a kind of installation of electric pole | |
| CN210995194U (en) | Screening plant for coal mining | |
| CN213710975U (en) | Alloy drill bit with strong perforation capacity for coal mining | |
| CN208067443U (en) | A kind of building pipe cutter device | |
| CN212026399U (en) | Storehouse cleaning machine for coal mine | |
| CN202232024U (en) | Material belt conveying mechanism for component mounting machine | |
| CN203283735U (en) | Conveying and crushing all-in-one machine for coal mine | |
| CN207874445U (en) | A kind of batten perforating device that wooden parasol makes | |
| CN220448811U (en) | Conveying and tensioning device | |
| CN219884779U (en) | Coal mining transportation device | |
| CN218706814U (en) | Supply chain is with colliery transmission structure | |
| CN217126045U (en) | Electromechanical transportation transmission in colliery | |
| CN212558103U (en) | Special feeding mechanism for continuous production of magnetic strips for induction cooker | |
| CN216538693U (en) | Coal mine collecting device in coal mining | |
| CN213980859U (en) | Coal shovel and steep inclined coal seam mechanized transportation system comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200731 Termination date: 20210808 |