CN202119643U - Drill and sampler - Google Patents
Drill and sampler Download PDFInfo
- Publication number
- CN202119643U CN202119643U CN2011202292576U CN201120229257U CN202119643U CN 202119643 U CN202119643 U CN 202119643U CN 2011202292576 U CN2011202292576 U CN 2011202292576U CN 201120229257 U CN201120229257 U CN 201120229257U CN 202119643 U CN202119643 U CN 202119643U
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- Prior art keywords
- drill bit
- main
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- tooth
- coal
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- Expired - Lifetime
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- 239000003245 coal Substances 0.000 claims abstract description 86
- 238000005070 sampling Methods 0.000 claims description 42
- 239000003818 cinder Substances 0.000 claims description 19
- 238000005553 drilling Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 8
- 230000003447 ipsilateral effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 5
- 230000001066 destructive effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 8
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002730 additional effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 244000188472 Ilex paraguariensis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a drill and a sampler, which solve the problem that the existing sampler can not obtain information of coal samples due to the fact that coal blocks are big and hard and freeze. The drill comprises a drill connection rod, a lateral tooth piece and a main drill. The lateral tooth piece is connected on the lateral face of the drill connection rod, and comprises lateral teeth for cutting the coal blocks from the lateral side. The main drill is connected at the bottom end of the drill connection rod, and comprises downward main teeth, and the main teeth comprise main tooth blades. Due to the fact that the drill comprises the lateral tooth piece and the main drill, during collection of coal samples, not only the main teeth of the main drill can exert static pressure on the coal samples to be collected on contact faces, but also the lateral teeth of the lateral tooth piece can exert lateral rotation cutting force on the coal samples to be collected. Therefore, destructive force on the coal samples to be collected is increased, collecting of the coal samples in big coal blocks, hard blocks and frozen coal blocks is facilitated, comprehensiveness of coal sample collecting and accuracy of obtained coal samples are guaranteed, and accordingly quality of coal as received can be accurately obtained.
Description
Technical field
The utility model relates to coal and gathers the rotary head technical field, relates in particular to a kind of drill bit and sampling thief.
Background technology
At present; Go into factory's coal when carrying out mechanical sampling for thermoelectricity, petrochemical industry etc.; When sampling thief runs into gathering coal, gangue, open because the drill bit of sampling thief can only squeeze the coal of bulk and the higher coal cinder of hardness, and can't collect representative coal sample in the higher coal cinder of large coal and hardness; Cause the analytical structure that obtains to the coal sample that collects not comprehensive, can accurately not be reacted into the quality of factory's coal.
In addition, when ambient temperature is low, because the phenomenon of freezing can appear in coal its surface in the process of transportation; Coal after should freeze this moment is when going into factory; Sampling thief is often adopted to be gone down, and therefore can't get access to the information of coal sample accurately yet, causes accurately knowing the quality into factory's coal.
The utility model content
The utility model provides a kind of drill bit and sampling thief, and existing sampling thief is big owing to coal cinder, coal cinder is hard and coal cinder freezes in order to solve, and can't accurately obtain the problem of the information of coal sample.
The utility model provides a kind of drill bit, and said drill bit comprises: drill bit connecting link, side blade and main drill bit;
Said drill bit connecting link comprises the head rod and second connecting link, and wherein, said head rod is a right cylinder, and the bottom of head rod connects the top of said second connecting link, and the xsect of said second connecting link is a regular polygon;
Said main drill bit comprises pretrite and main tooth, and the top of said pretrite is connected the bottom of said second connecting link, and the bottom of said pretrite connects said main tooth, under the said main teeth directional, comprises main land;
Said side blade comprises side toothholder and side tooth, and an end of wherein said side toothholder is connected on the side of said second connecting link, and the other end is connected with said side tooth, and said side tooth comprises the side land, and said side tooth cuts coal cinder from the side.
Said side toothholder comprises: interconnective first link and second link;
Wherein, The side of said first link, one end is welded on the side of said second connecting link; And have certain included angle between the said side toothholder after the welding and the longitudinal centre line of said second connecting link, the other end of said first link is connected with said second link;
The other end of said second link has fluting along the Width of said second link, the thickness coupling of the thickness of this fluting and side tooth, and said side tooth is connected in the said side toothholder through fluting.
Each side toothholder is welded on the not equal height of ipsilateral of said second connecting link, or on the position of differing heights correspondence.
Said side tooth comprises: link and gear piece end; Wherein,
The xsect of said link is a rectangle, and said link is positioned at the fluting of said side toothholder;
The xsect of said gear piece end is a rectangle, this gear piece end with have certain included angle after said link is connected, this angle is the value greater than 90 degree.
Preferably, said angle is 105 degree.
Said side tooth also comprises: be positioned at the cutting edge on the said side land.
Preferably, the chamfering of said cutting edge is 55 degree.
Said main tooth is triangular taper, on each main land of said main tooth, is inlaid with carbide blade.
The utility model provides a kind of sampling thief that comprises above-mentioned drill bit, and said sampling thief also comprises: spiral drill pipe, drill bit Connection Block and sampling cylinder; Wherein,
Said sampling cylinder is hollow cylinder;
Said spiral drill pipe is positioned at sampling cylinder inside, and the one of which end connects motor, comprises drilling rod and the rotating vane that is connected the drilling rod outside, and this rotating vane is shape in the shape of a spiral, and said rotating vane is connected the outside of said drilling rod along the length direction of said drilling rod;
One end of said drill bit Connection Block is connected the other end of said spiral drill pipe, and the other end of this drill bit Connection Block connects drill bit, and the side tooth of the said drill bit in connection back is positioned at the outside of said sampling cylinder.
The other end of said drill bit Connection Block has threaded hole, the threaded hole that the other end through bolt, drill bit Connection Block has, and the head rod of drill bit connecting link on the threaded hole that has, connect said drill bit Connection Block and this drill bit.
The utility model provides a kind of drill bit and sampling thief, and this drill bit comprises: drill bit connecting link, side gear piece and main drill bit; This side gear piece is connected on the side of drill bit connecting link, comprises the side tooth that cuts coal cinder from the side, and main drill bit is connected the bottom of drill bit connecting link, comprises downward main tooth, comprises main land on the main tooth.Because this drill bit comprises side blade and main drill bit in the utility model; When therefore carrying out the coal sample collection; Not only the main tooth of main drill bit can apply static pressure to coal sample to be collected on surface of contact, and the side tooth of side blade can also apply the rotary cutting power of side direction to coal sample to be collected, causes the destructive power on the coal sample to be collected to increase; Be convenient to carry out the collection of coal sample in gathering coal, hard coal piece and the icing coal cinder; It is comprehensive to guarantee that coal sample is gathered, and the accuracy of the coal sample of obtaining, thereby can know the quality into factory's coal accurately.
Description of drawings
The stereographic map of this drill bit that Fig. 1 provides for the utility model;
Main tooth that Fig. 2 provides for the utility model and front elevation after the drill bit connecting link is connected;
The structural representation of this sampling thief that Fig. 3 provides for the utility model.
Embodiment
The utility model is in order effectively to improve the comprehensive of the coal sample obtained, and the accuracy of the coal sample quality information that guarantees to obtain provides a kind of drill bit and comprised the sampling thief of this drill bit.
Below in conjunction with Figure of description, the utility model is elaborated.
The stereographic map of this drill bit that Fig. 1 provides for the utility model knows that according to shown in Figure 1 this drill bit comprises: drill bit connecting link 1, side blade and main drill bit; Wherein,
Said drill bit connecting link 1 comprises the head rod 11 and second connecting link 12, and wherein, said head rod 11 is a right cylinder, and the bottom of head rod 11 connects the top of said second connecting link 12, and the xsect of said second connecting link 12 is a regular polygon;
Said main drill bit comprises pretrite 9 and main tooth 6, and the top of said pretrite 9 is connected the bottom of said second connecting link 12, and the bottom of said pretrite 9 connects said main tooth 6, and said main tooth 6 is downward, comprises main land;
Said side blade comprises side toothholder 3 and side tooth 5, and an end of wherein said side toothholder 3 is connected on the side of said second connecting link 12, and the other end is connected with said side tooth 5, and said side tooth 5 comprises the side land, and said side tooth 5 cuts coal cinder from the side.
Know according to shown in Figure 1, on this first link 11, along have on the diametric(al) of this first link 11 with sampling thief in the threaded hole 2 that is connected of miscellaneous part.
Because this drill bit comprises side blade and main drill bit in the utility model; When therefore carrying out the coal sample collection; Not only the main tooth of main drill bit can apply static pressure to coal sample to be collected on surface of contact, and the side tooth of side blade can also apply the rotary cutting power of side direction to coal sample to be collected, causes the destructive power on the coal sample to be collected to increase; Be convenient to carry out the collection of coal sample in gathering coal, hard coal piece and the icing coal cinder; It is comprehensive to guarantee that coal sample is gathered, and the accuracy of the coal sample of obtaining, thereby can know the quality into factory's coal accurately.
According to shown in Figure 1, this side toothholder 3 comprises: interconnective first link 31 and second link 32;
Wherein, The side of one end of said first link 31 is welded on the side of said second connecting link 12; And have certain included angle between the said side toothholder 3 after the welding and the longitudinal centre line of said second connecting link 12, the other end of said first link 31 is connected with said second link 32;
The other end of said second link 32 has fluting 321 along the Width of said second link 32, and the thickness of this fluting 321 matees with the thickness of side tooth 5, and said side tooth 5 321 is connected in the said side toothholder 2 through slotting.
And, in order to guarantee side tooth connection stability, on second link 32 of this side toothholder, have threaded hole, through hexagon socket head cap screw 4 side tooth 5 is fixed in the fluting 321 of second link 32.
Know according to shown in Figure 1; Side toothholder 3 has irregular contour; This concrete side toothholder can have random appearance, can be welded on the drill bit connecting link as long as can guarantee the side of this side toothholder 3, and the structure that comprises the fluting of fixation side tooth on this side toothholder all is fine.
And in order to realize being connected of side blade and second connecting link, the side of an end of the side toothholder of this side blade is welded on the side of second connecting link; The xsect of this second connecting link is a regular polygon, for example can be equilateral triangle, square; Regular pentagon, regular hexagon etc.; When all being welded with corresponding side blade on each side at this second connecting link, the quantity of the side blade of welding is identical with the quantity of the side that second connecting link comprises, for example when this second connecting link is regular triangular prism; The side blade that is welded on second connecting link is three; Perhaps on the part side of second connecting link, be welded with side blade, for example when the xsect of this second connecting link was regular hexahedron, the numbering of these six sides was respectively 1～6; Then can be numbered weld side blade on 1,3,5 the side, perhaps be numbered weld side blade on 2,4,6 the side.
Because the side toothholder of different side blades is welded on the not ipsilateral of second connecting link, so the welding and assembling height of each side toothholder on the not ipsilateral of second connecting link can be identical, also can be different.Each side toothholder of welding back is certain included angle with the longitudinal centre line of second connecting link, and the angle at this angle is 25 degree, and the side toothholder after the welding is evenly arranged along the peripheral direction of this drill bit connecting link.And when different side toothholders was welded on the differing heights of the second connecting link side, the side toothholder just staggered and evenly arranges along the peripheral direction of drill bit connecting link.
In addition, know that this side tooth 5 comprises: link 51 and gear piece end 52 according to shown in Figure 1; Wherein,
The xsect of said link 51 is a rectangle, and said link 51 is positioned at the fluting 321 of said side toothholder 3;
The xsect of said gear piece end 52 is a rectangle, this gear piece end 52 with have certain included angle after said link 51 is connected, i.e. back rake angle, this angle is the value greater than 90 degree.
Preferably, said angle is 105 degree.
Cutting force and wear-resisting effect in the utility model in order to improve the side tooth spiral and to change, side tooth 5 also comprises: be positioned at the cutting edge 8 on the side land of said gear piece end 52.The overlay cladding of this cutting edge 8 for adopting the built-up welding form to constitute, the chamfering of said cutting edge 8 are 55 degree, and promptly its side edge angle is 55 degree.
Because side blade comprises the side tooth in the utility model, and is inlaid with cutting edge on the side land of this side tooth, therefore can improve the crushing effect and the wear-resisting effect of side tooth, when helping sampling gathering coal, hard coal piece and icing coal are carried out addi-tional crusher.
Main drill bit that Fig. 2 provides for the utility model and front elevation after the drill bit connecting link is connected know that according to shown in Figure 2 this main drill bit 6 comprises pretrite 61 and main tooth 62;
Wherein, an end of said pretrite 61 is connected with the bottom of said second connecting link 12;
Said main tooth 62 is connected with the other end of said pretrite 61, and this main tooth 62 is triangular taper, and a rib of the corresponding triangular pyramid of each main land is inlaid with carbide blade 7 on each main land of said main tooth 62.
Main tooth in the utility model is triangular taper, and each pyramid is a main land, in order to improve the crushing effect of drill bit, on each main land, all is inlaid with carbide blade 7, thereby can makes main tooth enter into coal seam depth fast.This pretrite is a right cylinder among Fig. 2, and certainly, this pretrite also can be other shapes; For example be the triangular prism corresponding with the triangular pyramid base of main tooth; When this pretrite is triangular prism, also can be at each stupefied tungsten carbide button's blade of attending of pretrite, as shown in Figure 1.
Because this second connecting link is to be regular triangular prism or square; Or xsect is the cylinder of other regular polygons, and therefore when it was connected with main drill bit, this main drill bit comprised pretrite; This pretrite is a right cylinder; Therefore in the bottom of this second link, the length direction of edge second connecting link has the hole that cooperates with pretrite, and the reliability in order to guarantee to connect; On this hole, have along the threaded hole of the Width of second connecting link, and on this pretrite, have supporting threaded hole.This pretrite is connected in the bottom perforate of this second connecting link, and the threaded hole through having on bolt, the pretrite, the threaded hole that has on the Width of this second connecting link, fixing this pretrite and second connecting link.
The structural representation of this sampling thief that Fig. 3 provides for the utility model knows that according to shown in Figure 3 this sampling thief comprises above-mentioned drill bit, and spiral drill pipe, drill bit Connection Block 10 and sampling cylinder 13; Wherein,
This sampling cylinder 13 is a hollow cylinder, and for example sampling cylinder can be steel pipe;
Said spiral drill pipe is positioned at this sampling cylinder 13 inside; The one of which end connects motor (not shown among Fig. 4), and this spiral drill pipe comprises drilling rod 11 and rotating vane 12, wherein; This drilling rod 11 is shaft-like; This rotating vane 12 is shape in the shape of a spiral, and said rotating vane 12 is connected the outside of said drilling rod 11 along the length direction of said drilling rod 11;
One end of said drill bit Connection Block 10 is connected the other end of said spiral drill pipe, and the other end of this drill bit Connection Block 10 connects drill bit, and the side tooth that connects the said drill bit in back is positioned at the outside of said sampling cylinder, docks with the bottom of said rotating vane.
In the utility model in order to realize being connected of drill bit and drill bit Connection Block; On the head rod of drill bit connecting link 1; Along having threaded hole on the diametric(al) of head rod; And the other end at drill bit Connection Block 10 has threaded hole, the threaded hole that the other end through bolt 9, drill bit Connection Block has, and the head rod of drill bit connecting link on the threaded hole that has, connect said drill bit Connection Block and this drill bit.Side toothholder 3 in the side blade of this drill bit docks with the bottom of rotating vane 12; Side toothholder 3 and side tooth 5 are connected through hexagon socket head cap screw; This side tooth 5 is positioned at sampling cylinder 13 outsides, on the side land of side tooth 5, is inlaid with cutting edge 8, and the side land through the side tooth is from the side cutting coal cinder; And, therefore can improve its broken effect and wearing quality owing to be inlaid with cutting edge on its side land.
The second connecting link bottom at drill bit connecting link 1 is connected with main drill bit 6, and the pretrite of this main drill bit 6 is connected with the bottom of second link, and the main tooth of this main drill bit is connected the bottom of pretrite, under this main teeth directional.In order to increase the crushing effect of main tooth in the main drill bit, and wearing quality, on each main land of this main tooth, be inlaid with carbide blade 7.
Owing to be connected through bolt between the head rod of drill bit and the drill bit Connection Block, so when bit part breaks down, can make things convenient for the dismounting of drill bit through bolt.Simultaneously on drill bit, the side tooth and the side toothholder between, and all pass through bolt between the pretrite of main drill bit and second connecting link and be connected, so when the side tooth on the drill bit or main tooth break down, also can change easily.
Sampling thief in the utility model is when sampling, when the drill bit of this sampling thief runs into large coal, or than the hard coal piece; For example during gangue, or run into when freezing coal cinder, and when other coal cinders of sampling; The main drill bit of drill bit under the turning effort of coal cinder to be sampled and spiral drill pipe, its main land with the surface of contact of coal cinder on apply static pressure in, also it is applied with rotary cutting power; Failing stress that coal cinder receives under the effect of two power increases, thereby produces tiny crackle, and along with the increase of time; This tiny crackle can fast-neutron fission be big crackle, and then broken, meanwhile; Three side teeth also play certain addi-tional crusher effect, thereby improve crushing efficiency, improve the accuracy of sampling.
And when adopting, because the side toothholder of this drill bit dock with rotating vane on the spiral drill pipe, so when sampling, the side tooth can also import coal sample in the sampling cylinder when coal sample is carried out fragmentation rapidly, so is convenient to the collection of coal sample.
The utility model provides a kind of drill bit and sampling thief, and this drill bit comprises: drill bit connecting link, side gear piece and main drill bit; This side gear piece is connected on the side of drill bit connecting link, comprises the side tooth that cuts coal cinder from the side, and main drill bit is connected the bottom of drill bit connecting link, comprises downward main tooth, comprises main land on the main tooth.Because this drill bit comprises side blade and main drill bit in the utility model; When therefore carrying out the coal sample collection; Not only the main tooth of main drill bit can apply static pressure to coal sample to be collected on surface of contact, and the side tooth of side blade can also apply the rotary cutting power of side direction to coal sample to be collected, causes the destructive power on the coal sample to be collected to increase; Be convenient to carry out the collection of coal sample in gathering coal, hard coal piece and the icing coal cinder; It is comprehensive to guarantee that coal sample is gathered, and the accuracy of the coal sample of obtaining, thereby can know the quality into factory's coal accurately.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from the spirit and the scope of the utility model.Like this, belong within the scope of the utility model claim and equivalent technologies thereof if these of the utility model are revised with modification, then the utility model also is intended to comprise these changes and modification interior.
Claims (10)
1. a drill bit is characterized in that, said drill bit comprises: drill bit connecting link, side blade and main drill bit;
Said drill bit connecting link comprises the head rod and second connecting link, and wherein, said head rod is a right cylinder, and the bottom of head rod connects the top of said second connecting link, and the xsect of said second connecting link is a regular polygon;
Said main drill bit comprises pretrite and main tooth, and the top of said pretrite is connected the bottom of said second connecting link, and the bottom of said pretrite connects said main tooth, under the said main teeth directional, comprises main land;
Said side blade comprises side toothholder and side tooth, and an end of wherein said side toothholder is connected on the side of said second connecting link, and the other end is connected with said side tooth, and said side tooth comprises the side land, and said side tooth cuts coal cinder from the side.
2. drill bit as claimed in claim 1 is characterized in that, said side toothholder comprises: interconnective first link and second link;
Wherein, The side of said first link, one end is welded on the side of said second connecting link; And have certain included angle between the said side toothholder after the welding and the longitudinal centre line of said second connecting link, the other end of said first link is connected with said second link;
The other end of said second link has fluting along the Width of said second link, the thickness coupling of the thickness of this fluting and side tooth, and said side tooth is connected in the said side toothholder through fluting.
3. drill bit as claimed in claim 2 is characterized in that, each side toothholder is welded on the not equal height of ipsilateral of said second connecting link, or on the position of differing heights correspondence.
4. according to claim 1 or claim 2 drill bit is characterized in that said side tooth comprises: link and gear piece end; Wherein,
The xsect of said link is a rectangle, and said link is positioned at the fluting of said side toothholder;
The xsect of said gear piece end is a rectangle, this gear piece end with have certain included angle after said link is connected, this angle is the value greater than 90 degree.
5. drill bit as claimed in claim 4 is characterized in that, said angle is 105 degree.
6. drill bit as claimed in claim 4 is characterized in that, said side tooth also comprises: be positioned at the cutting edge on the said side land.
7. drill bit as claimed in claim 6 is characterized in that, the chamfering of said cutting edge is 55 degree.
8. drill bit as claimed in claim 1 is characterized in that, said main tooth is triangular taper, on each main land of said main tooth, is inlaid with carbide blade.
9. a sampling thief that comprises the arbitrary said drill bit of claim 1～8 is characterized in that, said sampling thief also comprises: spiral drill pipe, drill bit Connection Block and sampling cylinder; Wherein,
Said sampling cylinder is hollow cylinder;
Said spiral drill pipe is positioned at sampling cylinder inside, and the one of which end connects motor, comprises drilling rod and the rotating vane that is connected the drilling rod outside, and this rotating vane is shape in the shape of a spiral, and said rotating vane is connected the outside of said drilling rod along the length direction of said drilling rod;
One end of said drill bit Connection Block is connected the other end of said spiral drill pipe, and the other end of this drill bit Connection Block connects drill bit, and the side tooth of the said drill bit in connection back is positioned at the outside of said sampling cylinder.
10. sampling thief as claimed in claim 9; It is characterized in that; The other end of said drill bit Connection Block has threaded hole; The threaded hole that the other end through bolt, drill bit Connection Block has, and the head rod of drill bit connecting link on the threaded hole that has, connect said drill bit Connection Block and this drill bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202292576U CN202119643U (en) | 2011-06-30 | 2011-06-30 | Drill and sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202292576U CN202119643U (en) | 2011-06-30 | 2011-06-30 | Drill and sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202119643U true CN202119643U (en) | 2012-01-18 |
Family
ID=45460698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202292576U Expired - Lifetime CN202119643U (en) | 2011-06-30 | 2011-06-30 | Drill and sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202119643U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251746A (en) * | 2011-06-30 | 2011-11-23 | 中国神华能源股份有限公司 | Drill bit and sampling device |
| CN103543034A (en) * | 2013-11-06 | 2014-01-29 | 太仓浩湖五金制品有限公司 | Material drilling device capable of rapidly drilling coal stone detection sample for detection |
| CN107472937A (en) * | 2017-08-28 | 2017-12-15 | 天府重工有限公司 | A kind of open-top car transporting bulk material freezes the clear car method of end-dump car and its device |
| CN111890505A (en) * | 2020-09-01 | 2020-11-06 | 河南工业大学 | Watermelon grain and coconut tree peeling machine |
-
2011
- 2011-06-30 CN CN2011202292576U patent/CN202119643U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251746A (en) * | 2011-06-30 | 2011-11-23 | 中国神华能源股份有限公司 | Drill bit and sampling device |
| CN102251746B (en) * | 2011-06-30 | 2013-11-06 | 中国神华能源股份有限公司 | Drill bit and sampling device |
| CN103543034A (en) * | 2013-11-06 | 2014-01-29 | 太仓浩湖五金制品有限公司 | Material drilling device capable of rapidly drilling coal stone detection sample for detection |
| CN107472937A (en) * | 2017-08-28 | 2017-12-15 | 天府重工有限公司 | A kind of open-top car transporting bulk material freezes the clear car method of end-dump car and its device |
| CN107472937B (en) * | 2017-08-28 | 2019-08-02 | 天府重工有限公司 | A kind of open-top car transporting bulk material freezes the clear vehicle method and device thereof of end-dump car |
| CN111890505A (en) * | 2020-09-01 | 2020-11-06 | 河南工业大学 | Watermelon grain and coconut tree peeling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120118 Effective date of abandoning: 20131106 |
|
| RGAV | Abandon patent right to avoid regrant |