CN203716869U - Drill rod coupler of raise boring machine - Google Patents
Drill rod coupler of raise boring machine Download PDFInfo
- Publication number
- CN203716869U CN203716869U CN201320848906.XU CN201320848906U CN203716869U CN 203716869 U CN203716869 U CN 203716869U CN 201320848906 U CN201320848906 U CN 201320848906U CN 203716869 U CN203716869 U CN 203716869U
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- CN
- China
- Prior art keywords
- housing
- drilling rod
- adapter sleeve
- hole
- shaft
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to a drill rod connecting device of a raise boring machine, and particularly relates to a drill rod coupler of a raise boring machine. The drill rod coupler comprises a shell fixedly connected with a motor spindle, wherein a drill rod connecting sleeve is arranged in the shell, and is in spherical fit with the shell, a circumferential limiting mechanism is also arranged between the drill rod connecting sleeve and the inner wall of the shell, namely, the drill rod connecting sleeve is synchronously rotated with the shell, when a drill bit is driven by a drill rod to drill downwards or a cutter is driven by the drill rod to chamber upwards, the location degree and the coaxiality of a hole can be ensured, drilling failure caused by position offset of the drill bit during a drilling process is avoided, and the hole-forming quality is ensured.
Description
Technical field
The utility model belongs to the drill rod connecting device of raise boring machine, is specifically related to a kind of drilling rod shaft coupling.
Background technology
Raise boring machine is that a kind of mechanization degree is high, handling safety, the courtyard construction equipment that production efficiency is high, be mainly used in the Bunker of underground mine and Other Engineering, staple shaft, cable aperture, the construction operations such as gravity vent, in some construction operation process because geology is comparatively complicated, once running into larger stone, drill bit just can produce skew unavoidably, yet, in prior art, drilling rod and electric machine main shaft are generally rigidly connected, once therefore drilling rod occurs to be offset and will drive whole body to tilt, so not only can cause holing and unsuccessfully also can serious threat arrive constructor's safety.
Utility model content
The purpose of this utility model is to provide a kind of drilling rod shaft coupling that can automatically rectify a deviation to drilling well head.
For achieving the above object, the utility model provides following technical scheme: a kind of drilling rod shaft coupling, comprise the housing being fixedly connected with electric machine main shaft, described enclosure interior is provided with drilling rod adapter sleeve, between described drilling rod adapter sleeve and housing, for sphere coordinates, between described drilling rod adapter sleeve and housing inner arm, be also provided with and can make drilling rod adapter sleeve follow housing to synchronize the circumferential position-limit mechanism rotating.
Technique effect of the present utility model is: when drilling rod drives drill bit hole or make progress reaming with movable knife disc, can guarantee position degree and the axiality in hole downwards, avoid bit location in boring procedure be offset and cause holing unsuccessfully, guarantee the quality of pore-forming.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model;
Fig. 2 is the I partial enlarged view of Fig. 1;
Fig. 3 is the II partial enlarged view of Fig. 2.
The specific embodiment
As shown in Figure 1, a kind of drilling rod shaft coupling, comprise the housing 10 being fixedly connected with electric machine main shaft, described housing 10 inside are provided with drilling rod adapter sleeve 20, between described drilling rod adapter sleeve 20 and housing 10, for sphere coordinates, between described drilling rod adapter sleeve 20 and housing 10 inner arms, be also provided with and can make drilling rod adapter sleeve (20) follow housing (10) to synchronize the circumferential position-limit mechanism rotating.Drilling rod is coaxially fixed on drilling rod adapter sleeve 20, motor is when driving drilling rod to rotate, drilling rod can also swing within the scope of certain amplitude, so just avoided drilling rod support when producing skew also to tilt thereupon, simultaneously in reaming process because drilling rod is subject to the pulling force from drill bit and support, even if also can swing to voluntarily on correct position under the effect of pulling force so drilling rod produces skew, greatly improve the quality of pore-forming.
As Fig. 1, shown in 2, housing 10 comprises the first housing 11 and the second housing 12, the inner chamber of described the first housing 11 is cylindrical, the intracavity sidewall of described the second housing 12 is dome shape, described the first housing 11 and the second housing 12 are connected and the two inner chamber forms the combined cavity of a perforation, the intracavity bottom of described the second housing 12 is provided with the connecting shaft hole 121 that connects the second housing 12, the footpath, chamber of the inner chamber of described the second housing 12 and cylindrical cavity connectivity part is larger, less with the footpath, chamber of connecting shaft hole connectivity part, the contour shape of described drilling rod adapter sleeve 20 is revolving body, described circumferential position-limit mechanism comprises the external tooth 21 evenly arranging on the annular outer surface of the internal tooth 111 that evenly arranges on the annular inner wall of the first housing 11 and drilling rod adapter sleeve 20, the facewidth direction of described internal tooth 111 is parallel with the axis of circular cylindrical cavity, the facewidth direction of external tooth 21 is parallel with the axis of drilling rod adapter sleeve 20, the tooth top of described each external tooth 21 forms dome shape, described external tooth 21 and the mutual interlock of internal tooth 111, on described drilling rod adapter sleeve 20, be also provided with the sphere section matching with the second housing 12, the spherical diameter of this sphere section equates with the spherical diameter of the inner chamber of the second housing 12, the centre of sphere of the sphere that the tooth top of the centre of sphere of this sphere section and external tooth 21 forms is positioned in same point, on described drilling rod adapter sleeve 20, towards the one end in connecting shaft hole 121, be provided with drilling rod connecting screw hole 22, described the first housing 11 be connected with electric machine main shaft and cylindrical cavity coaxial with electric machine main shaft.Technique scheme is a kind of enforcement means of the present utility model, internal tooth 111 and external tooth 21 interlocks make housing 10 can drive drilling rod adapter sleeve 20 to rotate, the second housing 12 coordinates and can make drilling rod adapter sleeve 20 freely swing on arbitrarily angled with the sphere of drilling rod adapter sleeve 20 simultaneously, in order to prevent in swing process that internal tooth 21 and external tooth 111 stop mutually, therefore the tooth top of external tooth 21 is arranged to the centre of sphere of dome shape and this sphere and the centre of sphere concurrent of the sphere section on drilling rod adapter sleeve 20, drilling rod is threaded with drilling rod connecting screw hole 22 through connecting shaft hole 121, drilling rod adapter sleeve 20 drives drilling rod to rotate.
As shown in Figure 2, the facewidth of the internal tooth 111 of the first housing 11 is greater than the facewidth of the external tooth 21 of drilling rod adapter sleeve 20.Drilling rod adapter sleeve 20 can float along the facewidth direction of external tooth, and this can play certain cushioning effect.
As shown in Figure 1, the first housing 11 is provided with through hole, through hole is communicated with cylindrical cavity and the two axis conllinear, on described the first housing 11 external surfaces, along through hole edge, be circumferentially provided with sawtooth 112, one section that Step Shaft 30 diameters are less is provided with external screw thread from the first housing 11 inner sides through the top of through hole and this section of Step Shaft 30, the step surface of Step Shaft 30 is resisted against on the inwall of the first housing 11, the end face of described electric machine main shaft be provided with Step Shaft 30 form on the screwed hole that is threaded and this end face, be also provided with the first housing on the sawtooth of sawtooth 112 mutual interlocks.Between electric machine main shaft and the first housing 11, utilize sawtooth 112 transmitting torques, rather than employing bolt transmitting torque, the torsional strength of sawtooth 122 is higher, greatly improved the reliability of rig work, the effect of Step Shaft 30 is to make the mutual interlock of sawtooth in order to serve as bolt on the one hand, is in order to bear pulling force axial in the rig course of work on the other hand.
As shown in Figure 3, between the step surface of Step Shaft 30 and the inwall of the first housing 11, be provided with cushion pad 113; Drilling rod adapter sleeve 20 is provided with pilot hole 23 towards one end of the first housing 11 through holes, the place, aperture of described pilot hole 23 is provided with the flange 24 that draws shape in, the top of described flange 24 is the arc surfaced arching upward, described flange 24 forms slide-and-guide with the face of cylinder of Step Shaft 30 and coordinates, on drilling rod adapter sleeve 20, along flange 24 tops, be provided with annular groove, in annular groove, be provided with lattice and enclose 25.Flange 24 slides up and down and can play certain guiding function to fluctuating of drilling rod adapter sleeve 20 along Step Shaft, and lattice enclose 25 and can reduce friction and prevent that lubrication oil runs off simultaneously.
Claims (7)
1. a drilling rod shaft coupling, it is characterized in that: comprise the housing (10) being fixedly connected with electric machine main shaft, described housing (10) inside is provided with drilling rod adapter sleeve (20), between described drilling rod adapter sleeve (20) and housing (10), for sphere coordinates, between described drilling rod adapter sleeve (20) and housing (10) inner arm, be also provided with and can make drilling rod adapter sleeve (20) follow housing (10) to synchronize the circumferential position-limit mechanism rotating.
2. drilling rod shaft coupling according to claim 1, it is characterized in that: described housing (10) comprises the first housing (11) and the second housing (12), the inner chamber of described the first housing (11) is cylindrical, the intracavity sidewall of described the second housing (12) is dome shape, described the first housing (11) and the second housing (12) are connected and the two inner chamber forms the combined cavity of a perforation, the intracavity bottom of described the second housing (12) is provided with the connecting shaft hole (121) that connects the second housing (12), the inner chamber of described the second housing (12) and the footpath, chamber of cylindrical cavity connectivity part are larger, less with the footpath, chamber of connecting shaft hole connectivity part, the contour shape of described drilling rod adapter sleeve (20) is revolving body, described circumferential position-limit mechanism comprises the external tooth (21) evenly arranging on the annular outer surface of the internal tooth (111) that evenly arranges on the annular inner wall of the first housing (11) and drilling rod adapter sleeve (20), the facewidth direction of described internal tooth (111) is parallel with the axis of circular cylindrical cavity, the facewidth direction of external tooth (21) is parallel with the axis of drilling rod adapter sleeve (20), the tooth top of described each external tooth (21) forms dome shape, described external tooth (21) and internal tooth (111) interlock mutually, on described drilling rod adapter sleeve (20), be also provided with the sphere section matching with the second housing (12), the spherical diameter of this sphere section equates with the spherical diameter of the inner chamber of the second housing (12), the centre of sphere of the sphere that the tooth top of the centre of sphere of this sphere section and external tooth (21) forms is positioned in same point, described drilling rod adapter sleeve (20) is upper is provided with drilling rod connecting screw hole (22) towards the one end of connecting shaft hole (121), described the first housing (11) be connected with electric machine main shaft and cylindrical cavity coaxial with electric machine main shaft.
3. drilling rod shaft coupling according to claim 2, is characterized in that: the facewidth of the internal tooth (111) of described the first housing (11) is greater than the facewidth of the external tooth (21) of drilling rod adapter sleeve (20).
4. according to the drilling rod shaft coupling described in claim 2 or 3, it is characterized in that: described the first housing (11) is provided with through hole, through hole is communicated with cylindrical cavity and the two axis conllinear, on described the first housing (11) external surface, along through hole edge, be circumferentially provided with sawtooth (112), one section of top of passing through hole and this section of Step Shaft (30) from the first housing (11) inner side that Step Shaft (30) diameter is less is provided with external screw thread, the step surface of Step Shaft (30) is resisted against on the inwall of the first housing (11), the end face of described electric machine main shaft be provided with Step Shaft (30) form on the screwed hole be threaded and this end face, be also provided with the first housing on sawtooth (112) sawtooth of interlock mutually.
5. drilling rod shaft coupling according to claim 4, is characterized in that: between the step surface of described Step Shaft (30) and the inwall of the first housing (11), be provided with cushion pad (113).
6. drilling rod shaft coupling according to claim 5, it is characterized in that: described drilling rod adapter sleeve (20) is provided with pilot hole (23) towards one end of the first housing (11) through hole, the place, aperture of described pilot hole (23) is provided with the flange (24) that draws shape in, the top of described flange (24) is the arc surfaced arching upward, and described flange (24) forms slide-and-guide with the face of cylinder of Step Shaft (30) and coordinates.
7. drilling rod shaft coupling according to claim 6, is characterized in that: described drilling rod adapter sleeve (20) is upper is provided with annular groove along flange (24) top, is provided with Ge Laiquan (25) in annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320848906.XU CN203716869U (en) | 2013-12-20 | 2013-12-20 | Drill rod coupler of raise boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320848906.XU CN203716869U (en) | 2013-12-20 | 2013-12-20 | Drill rod coupler of raise boring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203716869U true CN203716869U (en) | 2014-07-16 |
Family
ID=51156034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320848906.XU Expired - Fee Related CN203716869U (en) | 2013-12-20 | 2013-12-20 | Drill rod coupler of raise boring machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203716869U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742082A (en) * | 2013-12-20 | 2014-04-23 | 安徽铜冠机械股份有限公司 | Drill pipe coupler for raise boring machine |
| CN112324333A (en) * | 2020-10-22 | 2021-02-05 | 河北省水利工程局 | Construction method for horizontal directional crossing of complex pebble-gravel stratum by underground pipeline |
-
2013
- 2013-12-20 CN CN201320848906.XU patent/CN203716869U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742082A (en) * | 2013-12-20 | 2014-04-23 | 安徽铜冠机械股份有限公司 | Drill pipe coupler for raise boring machine |
| CN112324333A (en) * | 2020-10-22 | 2021-02-05 | 河北省水利工程局 | Construction method for horizontal directional crossing of complex pebble-gravel stratum by underground pipeline |
| CN112324333B (en) * | 2020-10-22 | 2022-08-02 | 河北省水利工程局 | Construction method for horizontal directional crossing of complex pebble-gravel stratum by underground pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20161220 |