CN101906933A - Power head for underground drill rig - Google Patents
Power head for underground drill rig Download PDFInfo
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- CN101906933A CN101906933A CN 201010243690 CN201010243690A CN101906933A CN 101906933 A CN101906933 A CN 101906933A CN 201010243690 CN201010243690 CN 201010243690 CN 201010243690 A CN201010243690 A CN 201010243690A CN 101906933 A CN101906933 A CN 101906933A
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- water swivel
- swivel axis
- unit head
- driving shaft
- housing
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Abstract
The embodiment of the invention discloses a power head for an underground drill rig. The power head comprises a hydraulic motor, a driving shaft (10), a power head shell (9), a water swivel shaft (12) and a water swivel shaft shell (17), wherein the driving shaft (10) is connected with an output shaft of the hydraulic motor (3); the power head shell (9) is sleeved on the driving shaft (10) through a bearing and one end of the power head shell (9) is connected with the hydraulic motor (3); the water swivel shaft (12) is connected with the driving shaft (10); and the water swivel shaft shell (17) is sleeved on the water swivel shaft (12). The driving shaft is directly connected with the water swivel shaft, the diameter of the driving shaft is relatively small and the weight of the power head is small, so the operating personnel can conveniently operate the power head.
Description
Technical field
The present invention relates to rig and make the field, more particularly, relate to the unit head that is used for underground drill rig.
Background technology
Rig (drill) is in geological prospecting, drives drilling tool and creeps into to underground, obtains the plant equipment of geologic information in kind.Main effect is the rock of broken foot of hole, is lowered to or proposes the drilling tool in the hole, to verify situations such as subsurface geology and mineral resources.Can be divided into by the job site: face of land rig, underground drill rig, seabed sinking rig etc.Wherein, underground drill rig is based on the all-hydraulic power head formula, generally constitute by main frame, pumping plant, console three parts, need the underground drill rig of different size at the different application environment, with regard to specification be the ZDY380 specification with regard to, wherein, Z is represented as rig, D represents the unit head mode, and Y represents hydraulic drive, and 380 expression nominal torques are 380N.m.
In the underground drill rig of this specification, with reference to the unit head of accompanying drawing 1, wherein, 1 is hydraulic quick coupler; 2 is motor oil inlet and outlet joint; 3 is hydraulic motor; 4 is motor drain tap joint; 5 is driving shaft (actuating sleeve); 6 is handle; 7 is hydraulic motor output shaft; 8 is connector; 9 is the unit head housing; 10 is oil sealing; 11 is spring; 12 is sealing ring; 13 is six square shafts; 14 is water swivel axis; 15 is the water swivel axis housing.This unit head mainly comprises: driving shaft 5, six square shafts 13, unit head housing 9, water swivel axis and water swivel axis housing 15.Be set to through hole in the middle of the driving shaft 5, the inner end of through hole is used to install hydraulic motor output shaft 7 one ends and links to each other with six square shafts 13 by connector 8; The driving shaft outer cover is equipped with unit head housing 9, line shaft housing 9 one ends are installed on the hydraulic motor, the other end is installed on the driving shaft 5 by gland, end at driving shaft 5 is equipped with spring 11 by axle sleeve, water swivel axis 14 is installed on six square shafts 13 by screw, and water swivel axis housing 15 is installed on the water swivel axis 14.
Unit head in the said structure, because driving shaft 5 links to each other with water swivel axis 14 by six square shafts 13, satisfying under the situation of given torque, six square shafts are parts of main transmitting torque, so the diameter for six square shafts requires bigger, naturally volume will be bigger and be sleeved on driving shaft 5 on six square shafts 13, therefore whole unit head is under the condition of transmitting given torque, its volume and weight is all bigger, the operator uses inconvenience, and six square shaft need be processed into hexahedron, the installing hole of Pei Heing also will be processed into the hexahedron shape therewith, thus processing relatively the difficulty.Because water swivel axis housing and unit head housing split-type design, so when water swivel axis rotates, the water swivel axis housing also can rotate with it, resistance when having increased bore operation, because the water swivel axis housing follows water swivel axis to rotate together, after screw on the water swivel axis housing fluffs, be thrown out of probably, cause and to carry out work smoothly.
Summary of the invention
In view of this, the invention provides the underground drill rig unit head, easy to operate to solve in the prior art.
For achieving the above object, the invention provides following technical scheme:
A kind of unit head that is used for underground drill rig comprises hydraulic motor;
Driving shaft, described driving shaft links to each other with described hydraulic motor output shaft;
On described driving shaft, and an end links to each other with described hydraulic motor by bearing holder (housing, cover) for unit head housing, described unit head housing;
Water swivel axis, described water swivel axis links to each other with described driving shaft; With
The water swivel axis housing, described water swivel axis housing is enclosed within on the described water swivel axis.
Preferably, at the above-mentioned unit head that is used for underground drill rig, described driving shaft comprises:
Be provided with the base of first installing hole; With
Be provided with the main body that described hydraulic motor output shaft second installing hole is installed, the terminal screw thread that is used to install nut that is provided with on the described main body.
Preferably, at the above-mentioned unit head that is used for underground drill rig, also be provided with stop washer on the described driving shaft, described stop washer is arranged between described nut and the described bearing.
Preferably, at the above-mentioned unit head that is used for underground drill rig, described water swivel axis comprises:
Be provided with the base that links to each other with the base of described driving shaft; With
Be set with the main body of described water swivel axis housing.
Preferably, at the above-mentioned unit head that is used for underground drill rig, also comprise preceding sealing ring, described preceding sealing ring is arranged between described water swivel axis and the described water swivel axis housing.
Preferably, at the above-mentioned unit head that is used for underground drill rig, place, the feed water inlet of described water swivel axis also is provided with lining.
From technique scheme as can be seen, in the embodiment of the invention because driving shaft directly links to each other with water swivel axis, and the diameter of driving shaft is less relatively, and the weight ratio of unit head is less, so that operating personnel operate is more convenient.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the front view of underground drill rig medium power head in the prior art;
The front view of the underground drill rig medium power head that Fig. 2 provides for the embodiment of the invention;
The vertical view of the underground drill rig medium power head that Fig. 3 provides for the embodiment of the invention;
The front view of the driving shaft that Fig. 4 provides for the embodiment of the invention;
The lateral view of the driving shaft that Fig. 5 provides for the embodiment of the invention;
The front view of the water swivel axis that Fig. 6 provides for the embodiment of the invention;
The lateral view of the water swivel axis that Fig. 7 provides for the embodiment of the invention;
The front view of the unit head housing that Fig. 8 provides for the embodiment of the invention;
The lateral view of the unit head housing that Fig. 9 provides for the embodiment of the invention;
The vertical view of the unit head housing that Figure 10 provides for the embodiment of the invention;
The front view of the water swivel axis housing that Figure 11 provides for the embodiment of the invention;
The lateral view of the water swivel axis housing that Figure 12 provides for the embodiment of the invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention discloses the unit head that a kind of underground drill rig is used, this unit head has quality minor structure characteristic of simple.
Please refer to accompanying drawing 2 and Fig. 3, Fig. 2 is the front view of unit head; Fig. 3 is the vertical view of unit head.
Wherein, 1 is hydraulic quick coupler; 2 is motor oil-feed turning set; 3 is fluid motor; 4 is hydraulic quick coupler; 5 is motor draining assembly; 6 is round nut; 7 is stop washer; 8 is bearing; 9 is the unit head housing; 10 is driving shaft; 11 is bearing; 12 is water swivel axis; 13 is oil sealing; 14 is middle cover; 15 is lining; 16 is preceding sealing ring; 17 water swivel axis housings; 18 water swivel axis glands; 19 water distribution joints; 22 is elbow; 21 is spigot; 20 is ball valve.
Unit head in embodiments of the present invention is applied on the underground drill rig, this underground drill rig pumping plant, operating desk and unit head three parts, compare main improvement with traditional underground drill rig and be the unit head part, the improvement of this unit head is the annexation of driving shaft and water swivel axis, and water swivel axis directly links to each other with driving shaft by bolt in the present embodiment.Below foregoing is described in detail.
Unit head among the present invention comprises: hydraulic quick coupler 1, motor oil-feed turning set 2, hydraulic motor 3, hydraulic quick coupler 4, motor draining assembly 5, driving shaft 10, unit head housing 9, water swivel axis 12 and water swivel axis housing 17 are formed.
Wherein, hydraulic quick coupler 1 links to each other with motor oil-feed turning set 2, hydraulic quick coupler 4 links to each other with motor draining assembly 5, motor oil-feed turning set 2 links to each other with hydraulic motor 3 respectively with motor draining assembly 5, hydraulic motor 3 directly links to each other with driving shaft 10, the oil-in of hydraulic motor links to each other with motor oil inlet and outlet on the operating desk, and the drain tap joint links to each other with oil return opening on the pumping plant.
This structures that driving shaft 10 and water swivel axis 12 directly links to each other are compared with the traditional unit head and the annexation of driving shaft, have following advantage:
At first, traditional driving shaft need be finished the transmission of the torque of driving shaft and water swivel axis by six square shafts, and present embodiment directly links to each other to come transmitting torque by driving shaft and water swivel axis, therefore, when transmitting identical torque, driving shaft big or small close in the diameter of six square shafts and the present embodiment in traditional unit head.Because, also be arranged with driving shaft (actuating sleeve) in traditional unit head on six square shafts, so volume is a lot of greatly in the volume ratio present embodiment of traditional unit head, unit head traditional when adopting identical material to make unit head is bigger than the unit head quality in the present embodiment, inconvenience when operating personnel operate.
Secondly, because driving shaft and water swivel axis are to transmit by the fixed form of itself when transmitting torque in the present embodiment, and driving shaft and six square shafts transmit by deformation own in the traditional power head, this unit head can produce wearing and tearing when using unavoidably, at this moment, just cause transmitting torque inaccurate, also might when bore operation, break drill bit.
At last because six square shafts and and the driving shaft mesopore that matches of six square shafts in process, need to process six faces, and be processed into cylindrical comparing, the processing more complicated.
Please refer to the driving shaft 10 among accompanying drawing 4 and Fig. 5, Fig. 4 is the front view of driving shaft; Fig. 5 is the lateral view of driving shaft.
Wherein, 101 is base; 102 is main body; 103 and 104 is installing hole; 105 is first end difference; 106 is second end difference; 107 is the 3rd end difference.
This driving shaft 10 comprises: base 101 and main body 102, main body 102 at axle is stepped, wherein, near that end of hydraulic motor output shaft is first end difference 105, first end difference 105 is used for the installing and locating parts, second end difference 106 is used to install bearing 8, the three end differences 107 and is used to install bearing 11 near that end of base; Offer installing hole 103 on main body 102, installing hole 103 is used to install hydraulic motor output shaft, passes through the key transmitting torque between the two; Offer groove on first end difference 105, between positioning element and bearing 8 stop washer 7 is installed by this groove, stop washer 7 provides pretightning force by self deformation for positioning element, and placement positioning element falling, described positioning element are round nut; Described base 101 top edges are evenly distributed with installing hole 104, and installing hole 104 is used to install water swivel axis 12.
Please refer to the water swivel axis 12 of accompanying drawing 6 and Fig. 7, Fig. 6 is the front view of water swivel axis; Fig. 7 is the lateral view of water swivel axis.
Wherein, 121 is base; 122 is main body; 123 is water supply hole; 124 is installing hole; 125 is connecting thread.
This water swivel axis 12 comprises: base 121 and main body 122, described base 121 is provided with counterbore and installing hole 124, this counterbore matches with base 101 on the driving shaft, installing hole 104 on the base 101 of installing hole 124 and driving shaft 10 cooperatively interacts, and by mounting screw driving shaft 10 and water swivel axis 12 is linked together.Between described screw and base 121, also be provided with packing ring, can prevent that screw from fluffing.
The water supply hole 123 that is provided with on the main body 122 can supply water or air for drilling rod by this water supply hole 123.Be arranged to cone shapely in that connecting thread 125 those ends are set, be convenient to install drilling rod, thereby to the drilling rod transmitting torque.
Disclose another kind of unit head in another embodiment of the present invention, the water swivel axis housing is directly installed on the unit head housing in this unit head, and following mask body is introduced this power head structure.
Comprise: hydraulic quick coupler 1, motor oil-feed turning set 2, hydraulic motor 3, hydraulic quick coupler 4, motor draining assembly 5, driving shaft 10, unit head housing 9, water swivel axis 12 and water swivel axis housing 17 are formed.
Wherein, hydraulic quick coupler 1 links to each other with motor oil-feed turning set 2, hydraulic quick coupler 4 links to each other with motor draining assembly 5, motor oil-feed turning set 2 links to each other with hydraulic motor 3 respectively with motor draining assembly 5, hydraulic motor 3 directly links to each other with driving shaft 10, the oil-in of hydraulic motor links to each other with motor oil inlet and outlet on the operating desk, and the drain tap joint links to each other with oil return opening on the pumping plant.
Said structure is compared with traditional structure, in traditional unit head when water swivel axis rotates, can drive the water swivel axis housing rotates, increased the resistance when drill bit rotates virtually, and because water swivel axis housing very possible splash phenomena that produces in rotation process influences the normal use of underground drill rig.In the present embodiment because the water swivel axis housing is installed on the unit head housing, be installed between the unit head housing on the hydraulic motor not along with drive shaft turns, therefore the water swivel axis housing can be along with water swivel axis rotate yet, the resistance in the transmission of torque process, reduction accident luminous efficiency.
With reference to the unit head housing 9 of accompanying drawing 8-10, Fig. 8 is the front view of unit head housing; Fig. 9 is the lateral view of unit head housing; Figure 10 is the vertical view of unit head housing.
Wherein, 91 is installation portion; 92 and 93 is the bearing location division; 94 are the rotation ears or side handles of a utensil; 95 is briquetting; 96 bases.
This unit head housing 9 comprises: installation portion 91, bearing location division 92 and 93, briquetting 95 and base 96.
Installation portion 91 is provided with installing hole, the unit head housing can be installed on the hydraulic motor by this installing hole;
Bearing location division 92 is used for bearing 8 is carried out axial location;
Bearing location division 93 is used for bearing 11 is carried out axial location;
Above-mentioned unit head housing 9 also comprises the rotation ears or side handles of a utensil 94, and the rotation ears or side handles of a utensil 94 make things convenient for the installation and removal of unit head.The other end corresponding with installation portion 91 is provided with installing hole, and this installing hole is used to install water swivel axis housing 17.
With reference to accompanying drawing 11 and Figure 12 water swivel axis housing 17, Figure 11 is the front view of water swivel axis housing; Figure 12 is the lateral view of water swivel axis housing.
Wherein, 171 is base; 172 is main body; 173 is the inlet opening; 174 are the water supply connector seat.
This water swivel axis housing 17 comprises: base 171 and main body 172, wherein,
Also disclose a kind of unit head in further embodiment of this invention, this unit head not only is arranged to driving shaft and is directly linked to each other with water swivel axis, also the water swivel axis housing directly is installed on the unit head housing.Concrete please refer to hereinafter introduced in detail.
Unit head comprises: hydraulic quick coupler 1, motor oil-feed turning set 2, hydraulic motor 3, hydraulic quick coupler 4, motor draining assembly 5, driving shaft 10, unit head housing 9, water swivel axis 12 and water swivel axis housing 17 are formed.
Wherein, hydraulic quick coupler 1 links to each other with motor oil-feed turning set 2, hydraulic quick coupler 4 links to each other with motor draining assembly 5, motor oil-feed turning set 2 links to each other with hydraulic motor 3 respectively with motor draining assembly 5, hydraulic motor 3 directly links to each other with driving shaft 10, the oil-in of hydraulic motor links to each other with motor oil inlet and outlet on the operating desk, and the drain tap joint links to each other with oil return opening on the pumping plant.
Driving shaft 10 is provided with unit head housing 9, is provided with bearing 8 and 11 between driving shaft 10 and the unit head housing 9, and driving shaft 10 outputs directly link to each other with water swivel axis 12; Water swivel axis 12 is provided with water swivel axis housing 17; Water swivel axis housing 17 is installed on the unit head housing 9.The water swivel axis housing links to each other with water distribution joint 19 by elbow 22, spigot 21, ball valve 20.
This structures that driving shaft 10 and water swivel axis 12 directly links to each other are compared with the traditional unit head and the annexation of driving shaft, have following advantage:
Traditional driving shaft need be finished the transmission of the torque of driving shaft and water swivel axis by six square shafts, and present embodiment directly links to each other to come transmitting torque by driving shaft and water swivel axis, therefore, when transmitting identical torque, driving shaft big or small close in the diameter of six square shafts and the present embodiment in traditional unit head.Because, also be arranged with driving shaft (actuating sleeve) in traditional unit head on six square shafts, so volume is a lot of greatly in the volume ratio present embodiment of traditional unit head, unit head traditional when adopting identical material to make unit head is bigger than the unit head quality in the present embodiment, inconvenience when operating personnel operate.
Because driving shaft and water swivel axis are to transmit by the fixed form of itself when transmitting torque in the present embodiment, and driving shaft and six square shafts transmit by deformation own in the traditional power head, this unit head can produce wearing and tearing when using unavoidably, at this moment, just cause transmitting torque inaccurate, also might when bore operation, break drill bit.
Because six square shafts and and the driving shaft mesopore that matches of six square shafts in process, need to process six faces, and be processed into cylindrical comparing, the processing more complicated.
When water swivel axis rotates, can drive the water swivel axis housing and rotate in traditional unit head, increase the resistance when drill bit rotates virtually, and because water swivel axis housing very possible splash phenomena that produces in rotation process influences the normal use of underground drill rig.In the present embodiment because the water swivel axis housing is installed on the unit head housing, be installed between the unit head housing on the hydraulic motor not along with drive shaft turns, therefore the water swivel axis housing can be along with water swivel axis rotate yet, the resistance in the transmission of torque process, reduction accident luminous efficiency.
In addition, with reference to accompanying drawing 2, can also between unit head housing 9 and water swivel axis housing 17 middle cover 14 be set, the water that can effectively place in the water swivel axis enters the unit head enclosure interior, in order to avoid bearing is corroded.Also be provided with oil sealing 13 on middle cover and the contacted position of water swivel axis, waterproof oil-proof result is better.
Sealing ring 16 before between water swivel axis 12 and water swivel axis housing 17, being provided with, preceding sealing ring can prevent effectively that sealing flows out along the water swivel axis axis direction, and the place, feed water inlet at water swivel axis is equipped with lining 15, and sealing ring blocked the feed water inlet before the installation of lining 15 can prevent effectively.Preceding sealing ring 16 is enclosed in the water swivel axis housing 17 by water pigtail gland 18.
Please refer to accompanying drawing 4 and as 5 in driving shaft 10, Fig. 4 is the front view of driving shaft; Fig. 5 is the lateral view of driving shaft.
Wherein, 101 is base; 102 is main body; 103 and 104 is installing hole; 105 is first end difference; 106 is second end difference; 107 is the 3rd end difference.
This driving shaft 10 comprises: base 101 and main body 102, main body 102 at axle is stepped, wherein, near that end of hydraulic motor output shaft is first end difference 105, first end difference 105 is used for the installing and locating parts, second end difference 106 is used to install bearing 8, the three end differences 107 and is used to install bearing 11 near that end of base; Offer installing hole 103 on main body 102, installing hole 103 is used to install hydraulic motor output shaft, passes through the key transmitting torque between the two; Offer groove on first end difference 105, between positioning element and bearing 8 stop washer 7 is installed by this groove, stop washer 7 provides pretightning force by self deformation for positioning element, and placement positioning element falling, described positioning element are round nut; Described base 101 top edges are evenly distributed with installing hole 104, and installing hole 104 is used to install water swivel axis 12.
Please refer to the water swivel axis 12 of accompanying drawing 6 and Fig. 7, Fig. 6 is the front view of water swivel axis; Fig. 7 is the lateral view of water swivel axis.
Wherein, 121 is base; 122 is main body; 123 is water supply hole; 124 is installing hole; 125 is connecting thread.
This water swivel axis 12 comprises: base 121 and main body 122, described base 121 is provided with counterbore and installing hole 124, this counterbore matches with base 101 on the driving shaft, installing hole 104 on the base 101 of installing hole 124 and driving shaft 10 cooperatively interacts, and by mounting screw driving shaft 10 and water swivel axis 12 is linked together.Between described screw and base 121, also be provided with packing ring, can prevent that screw from fluffing.
The water supply hole 123 that is provided with on the main body 122 can supply water or air for drilling rod by this water supply hole 123.Be arranged to cone shapely in that connecting thread 125 those ends are set, be convenient to install drilling rod, thereby to the drilling rod transmitting torque.
With reference to the unit head housing 9 of accompanying drawing 8-10, Fig. 8 is the front view of unit head housing; Fig. 9 is the lateral view of unit head housing; Figure 10 is the vertical view of unit head housing.
Wherein, 91 is installation portion; 92 and 93 is the bearing location division; 94 are the rotation ears or side handles of a utensil; 95 is briquetting; 96 bases.
This unit head housing 9 comprises: installation portion 91, bearing location division 92 and 93, briquetting 95 and base 96.
Installation portion 91 is provided with installing hole, the unit head housing can be installed on the hydraulic motor by this installing hole;
Bearing location division 92 is used for bearing 8 is carried out axial location;
Bearing location division 93 is used for bearing 11 is carried out axial location;
Above-mentioned unit head housing 9 also comprises the rotation ears or side handles of a utensil 94, and the rotation ears or side handles of a utensil 94 make things convenient for the installation and removal of unit head.The other end corresponding with installation portion 91 is provided with installing hole, and this installing hole is used to install water swivel axis housing 17.
With reference to accompanying drawing 11 and Figure 12 water swivel axis housing 17, Figure 11 is the front view of water swivel axis housing; Figure 12 is the lateral view of water swivel axis housing.
Wherein, 171 is base; 172 is main body; 173 is the inlet opening; 174 are the water supply connector seat.
This water swivel axis housing 17 comprises: base 171 and main body 172, wherein,
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (6)
1. a unit head that is used for underground drill rig comprises hydraulic motor, it is characterized in that, also comprises:
Driving shaft (10), described driving shaft (10) links to each other with the output shaft of described hydraulic motor (3);
On described driving shaft (10), and an end links to each other with described hydraulic motor (3) by bearing holder (housing, cover) for unit head housing (9), described unit head housing (9);
Water swivel axis (12), described water swivel axis (12) links to each other with described driving shaft (10); With
Water swivel axis housing (17), described water swivel axis housing (17) is enclosed within on the described water swivel axis (12).
2. the unit head that is used for underground drill rig according to claim 1 is characterized in that, described driving shaft (10) comprising:
Be provided with the base (101) of first installing hole (104); With
Be provided with the main body (102) of output shaft second installing hole (103) that described hydraulic motor (3) is installed, described main body (102) goes up end and is provided with the screw thread that is used to install nut.
3. the unit head that is used for underground drill rig according to claim 2 is characterized in that, also is provided with stop washer (7) on the described driving shaft (10), and described stop washer (7) is arranged between described nut and the described bearing.
4. the unit head that is used for underground drill rig according to claim 3 is characterized in that, described water swivel axis (12) comprising:
Be provided with the base (121) that links to each other with the base (101) of described driving shaft (10); With
Be set with the main body (122) of described water swivel axis housing (17).
5. the unit head that is used for underground drill rig according to claim 4 is characterized in that, also comprises preceding sealing ring (16), and described preceding sealing ring (16) is arranged between described water swivel axis (12) and the described water swivel axis housing (17).
6. the unit head that is used for underground drill rig according to claim 5 is characterized in that, the place, feed water inlet of described water swivel axis (12) also is provided with lining (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010243690 CN101906933A (en) | 2010-07-29 | 2010-07-29 | Power head for underground drill rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010243690 CN101906933A (en) | 2010-07-29 | 2010-07-29 | Power head for underground drill rig |
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| Publication Number | Publication Date |
|---|---|
| CN101906933A true CN101906933A (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010243690 Pending CN101906933A (en) | 2010-07-29 | 2010-07-29 | Power head for underground drill rig |
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| CN (1) | CN101906933A (en) |
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| CN109723374A (en) * | 2019-03-01 | 2019-05-07 | 冀凯河北机电科技有限公司 | A kind of gyrator of included water shutoff function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025862A (en) * | 2018-09-18 | 2018-12-18 | 中煤科工集团重庆研究院有限公司 | A kind of brake type water pigtail for coal mine gas extraction borehole |
| CN109723374A (en) * | 2019-03-01 | 2019-05-07 | 冀凯河北机电科技有限公司 | A kind of gyrator of included water shutoff function |
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Application publication date: 20101208 |