CN115142843B - Hammer coal cutter - Google Patents
Hammer coal cutterInfo
- Publication number
- CN115142843B CN115142843B CN202210662796.1A CN202210662796A CN115142843B CN 115142843 B CN115142843 B CN 115142843B CN 202210662796 A CN202210662796 A CN 202210662796A CN 115142843 B CN115142843 B CN 115142843B
- Authority
- CN
- China
- Prior art keywords
- plate
- drum
- hole
- motor
- coal
- 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.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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 OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Crushing And Pulverization Processes (AREA)
- Harvester Elements (AREA)
Abstract
The invention discloses a plate hammer type coal cutting machine which comprises a cart, a motor and a coal cutting roller, wherein the cart comprises a frame, a handle bar and wheels, the handle bar and the wheels are connected with the frame, the motor is arranged on the frame, the coal cutting roller comprises a roller shaft and a plurality of plate hammers, the roller shaft is rotatably arranged on the frame and extends along the horizontal direction, one ends of the plate hammers are movably connected with the roller shaft, and the motor is used for driving the roller shaft to rotate. The plate hammer type coal cutting machine disclosed by the invention has high coal cutting efficiency, and the plate hammer is enabled to circularly and reciprocally strike the bottom coal of the drum through the high-speed rotation of the coal cutting roller, so that the hard bottom coal of the drum is peeled layer by layer, and the labor is saved. The outer plate hammer type coal cutting machine is simple and compact in structure, small in overall dimension, and suitable for being used in narrow roadways, and the coal cutting roller can extend into the bottom of the bottom layer belt for construction operation.
Description
Technical Field
The invention relates to the technical field of coal mining, in particular to a plate hammer type coal cutter.
Background
A belt conveyor for conveying coal is usually arranged in a coal mine underground roadway, and the problem of roadway deformation often occurs due to the fact that underground ground pressure of the coal mine is usually large, so that a bottom bulging phenomenon is formed. The protruding quantity of the tunnel in some areas is larger and is almost close to the lower carrier roller of the belt conveyor, so that the normal transportation of the belt conveyor is affected, and the protruding coal seam in the tunnel needs to be stripped. However, due to the limited roadway width, the space between the lower belt and the bulged coal bed is narrow, the existing hook machine, bulldozer and other engineering machinery cannot enter, the bulged coal bed can be stripped only by means of digging by a manual pick, and due to the narrow space and limited action range, coal planing can be performed only by means of swinging the pick sideways, so that the efficiency is low.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the invention provides a plate hammer type coal cutter which has high coal cutting efficiency and is suitable for being used in narrow roadways.
The plate hammer type coal cutting machine comprises a trolley, a motor and a coal cutting roller, wherein the trolley comprises a frame, a handlebar and wheels, the handlebar and the wheels are connected with the frame, the motor is arranged on the frame, the coal cutting roller comprises a roller shaft and a plurality of plate hammers, the roller shaft is rotatably arranged on the frame and extends in the horizontal direction, one ends of the plate hammers are movably connected with the roller shaft, and the motor is used for driving the roller shaft to rotate.
The plate hammer type coal cutting machine provided by the embodiment of the invention has high coal cutting efficiency, the plate hammer is enabled to circularly and reciprocally strike the bottom coal of the drum through the high-speed rotation of the coal cutting roller, and the hard bottom coal of the drum is peeled layer by layer, so that the labor is saved. The outer plate hammer type coal cutting machine is simple and compact in structure, small in overall dimension, and suitable for being used in narrow roadways, and the coal cutting roller can extend into the bottom of the bottom layer belt for construction operation.
In some embodiments, the motor pulley, the roller pulley and the belt, the output shaft of the motor is in transmission connection with the electrode pulley, the roller pulley is connected with one end of the roller shaft, and the belt is sleeved on each of the roller pulley and the motor pulley, so that the motor drives the roller shaft to rotate.
In some embodiments, the coal cutting drum comprises a first spoke, a second spoke and a plurality of pins, wherein the first spoke and the second spoke are arranged on the drum shaft at intervals and are opposite to each other in the axial direction of the drum shaft, a first end of each pin is connected with the first spoke, a second end of each pin is connected with the second spoke, the pins are arranged at intervals along the circumferential direction of the drum shaft, at least one board hammer is arranged on each pin, and the board hammer can be rotatably arranged on each pin around each pin.
In some embodiments, the plate hammer is provided with a through hole at one end, the pin shaft penetrates through the through hole and is rotatably arranged relative to the through hole, the coal cutting roller further comprises a plurality of spacer sleeves, the pin shaft is sleeved on the spacer sleeves, the spacer sleeves are used for spacing the plate hammer, and at least one end of each spacer sleeve is propped against the plate hammer.
In some embodiments, the hammers on adjacent pins are staggered.
In some embodiments, the board hammer coal cutter includes a connection mount connected to the carriage, each of the motor and the coal cutting drum being connected to the connection mount
In some embodiments, the connecting seat comprises a vertically arranged main plate, a first through hole and a second through hole are formed in the main plate, the motor and the coal cutting roller are located on the same side of the main plate, the motor belt pulley and the roller belt pulley are located on the other side of the main plate, the motor is connected with the motor belt pulley through the first through hole, and the roller shaft is connected with the roller belt pulley through the second through hole.
In some embodiments, the plate hammer coal cutter further comprises a shield which is covered on the coal cutting drum from above and is connected with the connecting seat, the bottom of the shield is open so that the plate hammer extends out of the bottom of the shield, the coal cutting drum comprises a bearing, and the drum shaft is rotatably connected with the shield through the bearing.
In some embodiments, the motor pulley and the drum pulley are arranged at intervals in a first direction, the shield is provided with a first mounting hole, the connecting seat is provided with a second mounting hole, the connecting bolt penetrates through the first mounting hole and the second mounting hole to connect the shield with the connecting seat, and any one of the first mounting hole and the second mounting hole is a long strip hole extending along the first direction.
In some embodiments, the bearing comprises a first bearing and a second bearing opposite to each other in the axial direction of the drum shaft, the shield comprises an arc plate, a first side plate and a second side plate connected with the arc plate, one end of the drum shaft is connected with the first side plate through the first bearing, and the other end of the drum shaft is connected with the second side plate through the second bearing;
The connecting seat further comprises a mounting plate which is parallel to the main plate and is arranged at intervals between the main plate and the main plate in the axial direction of the drum shaft, the mounting plate is closer to the coal cutting drum than the main plate, a third through hole opposite to the second through hole is formed in the mounting plate, and the first bearing is supported at the third through hole.
Drawings
Fig. 1 is a schematic diagram of a plate hammer type coal cutter according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a plate hammer type coal cutter according to an embodiment of the present invention.
Fig. 3 is a schematic view of a portion of a plate hammer coal cutter in an embodiment of the invention.
Fig. 4 is a schematic view of a portion of a plate hammer coal cutter in an embodiment of the invention.
Fig. 5 is a schematic view of the structure of a coal cutting drum in an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a connection base according to an embodiment of the invention.
Fig. 7 is a schematic structural diagram of a connection seat according to an embodiment of the invention.
Fig. 8 is a schematic structural view of a shield in an embodiment of the present invention.
Reference numerals:
cart 1, handle 11, wheels 12, axle 13,
A motor 2,
The coal cutting drum 3, the drum shaft 31, the plate hammer 32, the first bearing 33, the second bearing 34, the first spoke 35, the second spoke 36, the pin shaft 37, the spacer 38,
A motor pulley 41, a roller pulley 42, a belt 43,
The connecting seat 5, the main plate 51, the first through hole 511, the second through hole 512, the mounting plate 52, the third through hole 521, the second mounting hole 522, the rib plate 53, the U-shaped plate 54, the vertical plate 55,
The cover 6, the arc-shaped plate 61, the first side plate 62, the first mounting hole 621, the second side plate 63, the notch 64, and the belt cover 7.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The basic structure of the board-hammer type coal cutter according to the embodiment of the present invention is described below with reference to fig. 1 to 8, and the board-hammer type coal cutter includes a cart 1, a motor 2 and a coal cutting drum 3, wherein the cart 1 includes a frame, a handle 11 and wheels 12, and the handle 11 and the wheels are connected to the frame. The motor 2 is arranged on the frame, the coal cutting roller 3 comprises a roller shaft 31 and a plurality of plate hammers 32, the roller shaft 31 is rotatably arranged on the frame, and the motor 2 is used for driving the roller shaft 31 to rotate. The drum shaft 31 extends in the horizontal direction, one end of each of the plurality of plate hammers 32 is movably connected to the drum shaft 31, and the other end is a free end. One end of the plate hammer 32 is movably connected with the drum shaft 31, which means that the plate hammer 32 can rotate along the circumferential direction relative to the drum shaft 31, that is, the plate hammer 32 is not rigidly connected with the drum shaft 31.
The working process of the plate hammer type coal cutter is as follows, the push cart 1 is pushed to push the plate hammer type coal cutter to the position of the bottom coal of the drum, the handle bar 11 is pressed down, the cart 1 takes the wheels 12 as support, the coal cutting roller 3 is tilted, and the bottom plate hammer 32 is higher than the coal seam. The power supply is connected, the motor 2 rotates, and the motor 2 drives the coal cutting roller 3 to rotate. The outermost end (free end) of the plate hammer 32 rotates with the maximum rotation diameter under the action of centrifugal force, the handle 11 is lifted to a specified position, the position of the coal cutting drum 3 is lowered, the plate hammer 32 is contacted with the coal bed, and the coal bed swelled in the cutting area is hit and shoveled under the knocking action of the plate hammer 32, so that the coal bed is stripped. When the plate hammer type coal cutter provided by the embodiment of the invention is used for removing the coal bed below the bottom layer belt, the height of the coal cutting roller is smaller than the distance from the bottom layer belt to the ground, so that the coal cutting roller can extend into the bottom of the bottom layer belt for construction operation.
The plate hammer type coal cutting machine provided by the embodiment of the invention has high coal cutting efficiency, the plate hammer is enabled to circularly and reciprocally strike the bottom coal of the drum through the high-speed rotation of the coal cutting roller, and the hard bottom coal of the drum is peeled layer by layer, so that the labor is saved. The outer plate hammer type coal cutting machine is simple and compact in structure, small in overall dimension, and suitable for being used in narrow roadways, and the coal cutting roller can extend into the bottom of the bottom layer belt for construction operation.
In addition, as the plate hammer 32 is movably connected with the drum shaft 31, when the lifting amplitude of the handlebar 11 is larger and the distance between the coal cutting drum 3 and the coal seam is lower, the plate hammer 32 can be stressed to twist automatically when the plate hammer 32 is not used for cutting the coal seam at one time, so that the rotation of the coal cutting drum 3 is not influenced, and the coal cutting drum 3 can continue to work normally, so that the plate hammer type coal cutting machine has better adaptability.
As shown in fig. 4, the frame includes an axle 13, and two wheels 12 are provided, and the two wheels 12 are rotatably connected to both ends of the axle 13. The axial direction of the drum shaft 31 is the same as the axial direction of the axle 13.
In some embodiments, the motor 2 drives the drum shaft 31 in rotation via a belt connection. Specifically, as shown in fig. 3, the plate hammer type coal cutter comprises a motor pulley 41, a roller pulley 42 and a belt 43, wherein an output shaft of the motor 2 is in transmission connection with the electrode pulley 41, the roller pulley 42 is connected with one end of the roller shaft 31, the belt 43 is sleeved on each of the roller pulley 42 and the motor pulley 41, the motor pulley 41 is driven to rotate by the output shaft of the motor 2, torque is transmitted to the roller pulley 42 by the roller pulley 42 through the belt 43, and the roller pulley 42 drives the roller shaft 31 to rotate.
In some embodiments, the board hammer coal cutter further comprises a connection base 5, the connection base 5 is connected with the frame, each of the motor 2 and the coal cutting drum 3 is connected with the connection base 5, i.e. the motor 2 and the coal cutting drum 3 are connected with the frame through the connection base 5.
As an example, as shown in fig. 2, 6 and 7, the connection seat 5 is provided close to one wheel 12. The connecting seat 5 includes a main plate 51 and a rib plate 53. The main plate 51 is disposed vertically and perpendicular to the axial direction of the drum shaft 31. The connecting seat 5 is connected with the axle 13 through a rib plate 53.
The main plate 51 is provided with a first through hole 511 and a second through hole 512, the motor 2 and the coal cutting drum 3 are positioned on the same side of the main plate 51, and the motor pulley 41 and the drum pulley 42 are positioned on the other side of the main plate 51. In the embodiment shown in fig. 2, the motor 2 and the coal cutting drum 3 are positioned on the inner side of the main plate 51, and the motor pulley 41 and the drum pulley 42 are positioned on the outer side of the main plate 51, so that the structure of the plate hammer type coal cutting machine is more compact and reasonable.
The motor 2 is connected to the motor pulley 41 through the first through hole 511, i.e., the output shaft of the motor 2 is connected to the motor pulley 41 through the first through hole 511 on the main plate 51. Specifically, the flange end positioning boss of the motor 2 may extend into the first through hole 511 for positioning. Around the first through hole 511, a plurality of screw holes for screw-coupling with the flange of the motor 2 may be provided.
The drum shaft 31 is connected to the drum pulley 42 through the second through hole 512, i.e., the drum shaft 31 is connected to the drum pulley 42 through the second through hole 512 of the main plate 51. It will be appreciated that the belt 43 is on the same side of the main plate as the motor pulley 41 and the drum pulley 42.
Further, as shown in fig. 1, the board hammer type coal cutter further includes a hood 6, the hood 6 being covered on the coal cutting drum 3 from above, the bottom of the hood 6 being opened so that the board hammers 32 protrude from the bottom of the hood 6. The shield 6 is used to prevent the operator from being injured by the splatter of the coal cake carried by the rotation of the hammer 32. The shield 6 is connected with the connecting seat 5. The coal cutting drum 3 further comprises bearings, through which the drum shaft 31 is rotatably connected with the hood 6.
Specifically, as shown in fig. 8, the shield 6 has a semi-cylindrical structure including an arc-shaped plate 61, a first side plate 62, and a second side plate 63. The first side plate 62 and the second side plate 63 are opposite to each other in the axial direction of the shroud 6, and are connected to both ends of the arc plate 61, respectively, and the first side plate 62 is connected to the connection base 5. The shield 6 is fastened above the coal cutting drum 3, and the axial direction thereof is the same as the axial direction of the drum shaft 31.
The bearings include a first bearing 33 and a second bearing 34 which are opposed in the axial direction of the drum shaft 31, the first bearing 33 being connected to the first side plate 62, and the second bearing 34 being connected to the second side plate 63. One end of the drum shaft 31 is connected to the first side plate 62 through the first bearing 33, and the other end of the drum shaft 31 is connected to the second side plate 63 through the second bearing 34. As shown in fig. 8, the bottoms of the first side plate 62 and the second side plate 63 are each provided with a notch 64 for mounting a bearing.
Optionally, the first bearing 33 and the second bearing 34 are both seated bearings, solving the problem of bearing lubrication.
Further, to improve structural stability and structural rationality, it is also convenient to install. As shown in fig. 6 and 7, the connection base 5 further includes a mounting plate 52. The mounting plate 52 is parallel to the main plate 51 and is spaced from the main plate 51 in the axial direction of the drum shaft 31. The mounting plate 52 is closer to the coal cutting drum 3 than the main plate 51, i.e., the mounting plate 52 is provided on the side of the main plate 51 closer to the coal cutting drum 3. The first side plate 62 of the shield 6 is connected to the mounting plate 52.
Specifically, as shown in fig. 6 and 7, the mounting plate 52 further includes a U-shaped plate 54 and a vertical plate 55 for connecting the main plate 51 and the mounting plate 52, the U-shaped plate 54 and the vertical plate 55 extend in directions perpendicular to each other between the main plate 51 and the mounting plate 52, and the U-shaped plate 54 and the vertical plate 55 are connected between the main plate 51 and the mounting plate 52 so that the connecting base 5 is integral.
The mounting plate 52 is provided with a third through hole 521 opposite to the second through hole 512, and the first bearing 33 is supported at the third through hole 521. The drum shaft 31 is coupled to the drum pulley 42 through the second through hole 512 of the main plate 51 after passing through the first bearing 33 supported at the third through hole 521. The first bearing 33 is supported at the third through hole 521 to better avoid the movement of the drum shaft 31, and the third through hole 521 of the mounting plate 52 is further used for accommodating and avoiding the first bearing 33, and a certain interval is formed between the first bearing 33 and the drum pulley 42. The mounting plate 52 can also make the plane of the motor belt pulley 41 and the roller belt pulley 42 parallel to the main plate 51, so that the structure is more reasonable.
In the embodiment shown in fig. 6 and 7, the third through hole 521 on the mounting plate 52 and the second through hole 512 on the main plate 51 are both configured as a groove-opening structure, that is, the front sides of the third through hole 521 and the second through hole 512 are opened to form a groove-opening structure, so that the installation of the coal cutting drum 3 and the first bearing 33 is facilitated.
Further, as shown in fig. 3, the motor pulley 41 and the drum pulley 42 are disposed at intervals in the first direction, as shown in fig. 8, a first mounting hole 621 is provided in the first side plate 62 of the shield 6, as shown in fig. 7, a second mounting hole 522 is provided in the mounting plate 52, and a connecting bolt passes through the first mounting hole 621 and the second mounting hole 522 to connect the shield 6 to the mounting plate 52, and any one of the first mounting hole 621 and the second mounting hole 522 is a long hole extending in the first direction. The relative position of the shield 6 and the connecting seat 5 can be adjusted in the first direction, the relative position of the coal cutting drum 3 and the connecting seat 5 can be adjusted because the coal cutting drum 3 is connected with the shield 6, and the relative position of the drum pulley 42 and the connecting seat 5 can be adjusted because the drum pulley 42 is connected with the drum shaft 31, and the motor pulley 41 and the connecting seat 5 are relatively fixed, so that the belt 43 sleeved on the belt pulley can be tensioned by adjusting the relative position of the drum pulley 42 and the motor pulley 41 in the first direction.
The first bearing 33 can also move along the third through hole 521 of the slot when adjusting the shield 6. Preferably, the third through hole 521 matches the size of the first bearing 33.
In some embodiments, as shown in fig. 4 and 5, the coal cutting drum 3 includes a first spoke 35, a second spoke 36, and a plurality of pins 37, the first spoke 35 and the second spoke 36 being disposed on the drum shaft 31 at intervals and opposing in an axial direction of the drum shaft 31, the first spoke 35 and the second spoke 3 being fixed relative to the drum shaft 31 to rotate with rotation of the drum shaft 31. A first end of the pin 37 is connected to the first spoke 35, a second end of the pin 37 is connected to the second spoke 36, and a plurality of pins 37 are arranged at intervals along the circumferential direction of the drum shaft 31, and in the embodiment shown in fig. 4 and 5, the pins 37 are parallel to the drum shaft 31. At least one plate hammer 32 is arranged on each pin 37, and the plate hammer 32 is rotatably arranged on the pin 37 around the pin 37, namely, the plate hammer 32 is movably connected with the pin 37. The rotation of the drum shaft 31 drives the pin 37 to rotate around the circumference thereof, and further drives the plate hammer 32 to rotate around the drum shaft 31.
As an example, as shown in fig. 5, one end of the board hammer 32 is provided with a through hole, and a pin 37 is provided through the through hole on the board hammer 32 and rotatably relative to the through hole. That is, the plate hammer 32 may be rotated around the pin 37 with the central axis of the pin 37 as the rotation axis, or revolved around the central axis of the drum shaft 31 as the rotation axis by the drum shaft 31.
In the embodiment shown in fig. 5, a plurality of hammers 32 are spaced apart from each other on each pin 37. The plate hammers 32 on the adjacent pin shafts 37 are staggered, so that the coal cutting effect of the coal cutting roller 3 is better, and the plate hammers 32 can not interfere with each other during swinging motion.
Further, in order to fix the position of the plate hammer 32 relatively in the axial direction, as shown in fig. 5, the coal cutting drum 3 further includes a plurality of spacers 38, the spacers 38 are sleeved with pins 37, and at least one end of each spacer 38 abuts against the plate hammer 32. The spacer 38 is used to space the plate hammer 32 apart to prevent axial play of the plate hammer 32 along the pin 37 during rotation. The number and length of spacers 38 may be designed based on the number and spacing of the hammers 32 on the pins 37.
In some embodiments, as shown in fig. 2, the plate hammer coal cutter further comprises a belt cover 7, wherein the belt cover 7 is arranged on the outer sides of the motor pulley 41, the roller pulley 42 and the belt 43, and is connected with one side of the main plate 51 away from the motor 2, so as to protect the motor pulley 41, the roller pulley 42 and the belt 43.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or communicable with each other, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interactive relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210662796.1A CN115142843B (en) | 2022-06-13 | 2022-06-13 | Hammer coal cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210662796.1A CN115142843B (en) | 2022-06-13 | 2022-06-13 | Hammer coal cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115142843A CN115142843A (en) | 2022-10-04 |
| CN115142843B true CN115142843B (en) | 2025-10-28 |
Family
ID=83408656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210662796.1A Active CN115142843B (en) | 2022-06-13 | 2022-06-13 | Hammer coal cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115142843B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212086881U (en) * | 2020-03-31 | 2020-12-08 | 湖南省烟草公司湘西自治州公司 | Motor-driven base fertilizer is applyed and ridging system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201938118U (en) * | 2010-10-19 | 2011-08-24 | 华南理工大学 | Lawn leaves cleaning vehicle |
| CN202316061U (en) * | 2011-10-25 | 2012-07-11 | 焦作煤业（集团）新乡能源有限公司 | Lump coal crushing device of coalface transferring conveyor |
| CN106797740B (en) * | 2015-11-26 | 2020-07-03 | 现代农装科技股份有限公司 | A ditching fertilizer applicator |
| CN209345568U (en) * | 2018-12-29 | 2019-09-06 | 常州天聚星工具有限公司 | Roller grass trimmer with dual-purpose type hobboing cutter axis |
-
2022
- 2022-06-13 CN CN202210662796.1A patent/CN115142843B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212086881U (en) * | 2020-03-31 | 2020-12-08 | 湖南省烟草公司湘西自治州公司 | Motor-driven base fertilizer is applyed and ridging system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115142843A (en) | 2022-10-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115142843B (en) | Hammer coal cutter | |
| US20090007460A1 (en) | Earth saw | |
| CN112942465B (en) | Pole hole excavation device for electric power engineering | |
| JPS6344030A (en) | Drilling machine for digging groove in ground | |
| CN113638301B (en) | Aggregate collector without crushing aggregate | |
| CN112963164B (en) | An all-in-one roadheader for tunnel excavation | |
| CN211406769U (en) | Novel forestry operation is with making ground soil preparation machine | |
| CN108934423A (en) | Twin shaft crushing type weeding operation head and crushing type weeding operational method | |
| CN114562262A (en) | Coal mining equipment | |
| CN219012622U (en) | Loading device for tunnel construction and heading machine with loading device | |
| CN219587573U (en) | Drilling and splitting integrated splitting machine | |
| EP0735192A2 (en) | A road scarifying machine with a perfected milling drum for the removal of road surfacings | |
| CN116695495A (en) | Tunnel floor heave cleaning device | |
| CN218201056U (en) | Quick portable oil drum transport device of falling oil | |
| AU762584B2 (en) | Cutting tool module | |
| CN212936572U (en) | Agricultural soil turning machine casting of portable | |
| CN222413201U (en) | Trench excavation device for natural gas conveying pipeline construction | |
| CN218078288U (en) | Bridge type reversed loader | |
| CN216421283U (en) | Chain piece structure for arc chain saw | |
| CN113581844B (en) | Hydraulic ore and mountain stone conveying all-in-one machine and conveying method | |
| CN220762803U (en) | Cutting device for ternary material wear-resistant conveying pipeline | |
| CN217037860U (en) | Device for removing tree pit stone in greening | |
| CN222976753U (en) | A milling machine for rotary drilling rig | |
| CN218104181U (en) | Movable weeding device for field management | |
| CN220849660U (en) | Coal mining machine for coal mine |
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 |