CN205577847U - Hob head dowel combination location structure for raise boring machine - Google Patents
Hob head dowel combination location structure for raise boring machine Download PDFInfo
- Publication number
- CN205577847U CN205577847U CN201620295152.3U CN201620295152U CN205577847U CN 205577847 U CN205577847 U CN 205577847U CN 201620295152 U CN201620295152 U CN 201620295152U CN 205577847 U CN205577847 U CN 205577847U
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- CN
- China
- Prior art keywords
- hob head
- key
- alignment pin
- boring machine
- positioning key
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Abstract
The utility model discloses a hob head dowel combination location structure for raise boring machine, hob head fix a position with sword disc cutter frame through a plurality of group's navigation keys and locating pin and are connected, the size of navigation key upper end is greater than the size of navigation key lower extreme, the upper end of navigation key with the hob head transitional coupling, the lower extreme of navigation key with the interference of sword disc cutter frame is connected, the size of locating pin upper end is greater than the size of locating pin lower extreme, the upper end of locating pin with the hob head transitional coupling, the lower extreme of locating pin with the interference of sword disc cutter frame is connected. The utility model discloses easily processing, reliable, the hob head interchangeability height in location.
Description
Technical field
This utility model belongs to mining machinery technical field, particularly relates to a kind of raise boring machine hob head key pin
Assembly positioning structure.
Background technology
Raise boring machine as a kind of important mining equiment, is having the stable well of bottom haulage drift, geological conditions
Being used widely in tube construction, it mainly makes hydraulic motor obtain rotary torque by hydraulic transmission mode,
Driving drilling system, drive drilling rod and bit, meanwhile, propelling cylinder applies drill bit to advance when boring
Power, and apply cutterhead when reaming and with the anti-power of carrying and act on rock.
During raise boring machine ream operation, the hobboing cutter on cutterhead is under revolution and the anti-dual function carried, along shaft bottom rock
Stone work surface is made pure rolling cutting or microdisplacement occurs, and produces shock loading, and the hob teeth on hobboing cutter is by punching
Hit, extrude and rock is crushed by shear action.During its ream operation, hobboing cutter rolls under the pressure of the drill effect,
Producing shock loading, hob head withstands shocks, extrudes and shear-type load, and therefore hob head is in ream operation,
Bearing capacity is big, and the intensity of hob head and the reliability of installation need to be effectively ensured.
Cutterhead knife rest with the connected mode of hob head is in the prior art: one, cutterhead knife rest and hob head bolt
Connect；Two, cutterhead knife rest and hob head integral solder.Both the above connected mode exists following not enough: bolt
Connecting causes cutterhead knife rest cannot position when installing with hob head, and installation accuracy is poor, when ream operation, and hobboing cutter
Seat easily occurs to swing and rotate, and hob head is fragile, and service life is low, need to often change.And use welding
Mode, its hob head is fixing with cutterhead knife rest to be connected, after hob head damages, it is impossible to be individually replaced, need entirety more
Tool changing dish, maintenance cost is high, uneconomical practicality.
Utility model content
The purpose of this utility model is that and overcomes the deficiencies in the prior art, it is provided that one is prone to processing, location
Reliably, the raise boring machine hob head key pin assembly positioning structure that hob head interchangeability is high.
To achieve these goals, this utility model provides a kind of raise boring machine hob head key pin integrated positioning
Structure, hob head is located by connecting with cutterhead knife rest by some groups of positioning keys and alignment pin, described positioning key upper end
Size more than the size of described positioning key lower end, the upper end of described positioning key is connected with described hob head transition,
The lower end of described positioning key is connected with described cutterhead knife rest interference；The size of described alignment pin upper end is more than described fixed
The size of pin lower end, position, the upper end of described alignment pin is connected with described hob head transition, the lower end of described alignment pin
It is connected with described cutterhead knife rest interference.
Further, the centre of described positioning key has the first screwed hole.
Further, the centre of described alignment pin has the second screwed hole.
Further, described hob head is connected with described cutterhead knife rest by trip bolt or bolt.
Further, the upper end of described positioning key is oval type, the width of described positioning key upper end and described hobboing cutter
The width interference fits of seat keyway.
Further, the length of described positioning key upper end is less than the length of described hob head keyway.
Further, in positioning key described in some groups and alignment pin, its often the described positioning key in group at width
The centerline of the symmetrical center line on direction and described alignment pin is on same axis.
Further, the lower end of described positioning key is column type；The upper end of described alignment pin is column type, lower end
In column type.
Further, the thickness of described positioning key upper end is less than the degree of depth of described hob head keyway.
Further, the step surface of described positioning key top and bottom transition is attached to the end face of described cutterhead knife rest
On, the step surface of described alignment pin top and bottom transition is attached on the end face of described cutterhead knife rest.
Compared with prior art, the beneficial effects of the utility model: hob head of the present utility model and cutterhead knife rest
Using the positioning connection of positioning key and alignment pin combination, location is reliable, it is easy to processing and manufacturing, and can be effective
During ensureing ream operation, hob head will not occur to swing and rotate under flywheel moment effect, improves hob head
Interchangeability so that on-the-spot remain able to reach installation accuracy when changing hob head, ensure cutter life.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that, describe below
In accompanying drawing be only embodiments more of the present utility model, for those of ordinary skill in the art, not
On the premise of paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of this utility model embodiment.
Fig. 2 is the top view after Fig. 1 removes hob head.
Above-mentioned reference:
1 positioning key, 2 alignment pins, 3 hob heads, 4 cutterhead knife rests.
Detailed description of the invention
Below in conjunction with the accompanying drawings utility model is further illustrated, but be not limited to scope of the present utility model.
Embodiment
As shown in Figure 1, 2, a kind of raise boring machine hob head key pin integrated positioning knot that this utility model provides
Structure, hob head 3 is located by connecting with cutterhead knife rest 4 by some groups of positioning keys 1 and alignment pin 2, described location
The size of key 1 upper end is more than the size of described positioning key 1 lower end, the upper end of described positioning key 1 and described hobboing cutter
Seat 3 transition connects, and the lower end of described positioning key 1 is connected with the interference of described cutterhead knife rest 4；Described alignment pin 2
The size of upper end is more than the size of described alignment pin 2 lower end, the upper end of described alignment pin 2 and described hob head 3
Transition connects, and the lower end of described alignment pin 2 is connected with the interference of described cutterhead knife rest 4.
This utility model is by the location mode of some groups of positioning keys 1 with alignment pin 2 combination, by hob head 3
Being located by connecting with cutterhead knife rest 4, location is reliable, it is ensured that during ream operation, hob head 3 is in turning power
Will not occur under square effect to swing and rotate, simultaneously for preventing hob head 3 from hob head being occurred by impact shock
3 occur to loosen relative to cutterhead knife rest 4, and cause hob head to occur getting loose, and this utility model passes through positioning key
The size of 1 upper end is more than the size of described positioning key 1 lower end, and the size of alignment pin 2 upper end is more than location
The size of pin 2 lower end, effectively prevent the generation of above-mentioned situation.Meanwhile, this utility model positioning key 1
With the use of alignment pin 2, it is effectively prevented trip bolt when hob head 3 is connected or spiral shell with cutterhead knife rest 4
Bolt, it was because being lost efficacy by shear-loaded, and this utility model realizes location by positioning key 1 and alignment pin 2,
Positioning key 1 and alignment pin 2 bear shear-loaded simultaneously, it is ensured that the reliability of connection.
For ease of the dismounting of positioning key 1, the centre of described positioning key 1 of the present utility model has the first screwed hole.
The fast quick-detach of positioning key 1 is realized by the first screwed hole.
For ease of the dismounting of alignment pin 2, the centre of described alignment pin 2 of the present utility model has the second screwed hole.
The fast quick-detach of alignment pin 2 is realized by the second screwed hole.
Preferably, the upper end of described positioning key 1 is oval type to this utility model, the width of described positioning key 1 upper end
Degree and the width interference fits of described hob head 3 keyway.In this preferred embodiment, the upper end of positioning key 1
In oval type, lower end is column type, and the size of positioning key 1 upper end is more than the size of positioning key 1 lower end, logical
Cross the explanation of concrete data: the lower end diameter such as positioning key 1 isUpper end a diameter of
The width of upper end is 30mm, and centre has M12 the first screwed hole, it is simple to dismounting.The upper end of alignment pin 2
In column type, lower end is column type, and the size of alignment pin 2 upper end is more than the size of alignment pin 2 lower end, logical
Cross the explanation of concrete data: a diameter of such as alignment pin 2 lower endUpper end a diameter of
Centre has M16 the second screwed hole, it is simple to dismounting.
The upper end of positioning key 1 of the present utility model is oval type, and the key of the upper end of positioning key 1 and hob head 3
Groove interference fits.Positioning key 1 and alignment pin 2 with the use of, constrain hob head 3 translation in the horizontal plane
And rotation, two parallel surfaces of positioning key 1 upper end contact with the keyway of hob head 3 simultaneously, increase positioning key
1 with alignment pin 2 and hob head 3 and the contact area of cutterhead knife rest 4, thus reduce contact stress, and can
To be effectively prevented from hob head 3 because of moment of torsion effect swing in the circumferential, it is ensured that hob head 3 in operation process
Reliable fixing.
The length of described positioning key 1 upper end of the present utility model is less than the length of described hob head 3 keyway.If
Dry organize in described positioning key 1 and alignment pin 2, its every symmetry in the direction of the width of the described positioning key 1 in group
The centerline of centrage and described alignment pin 2 is on same axis so that positioning key 1 and the company of hob head 3
Meeting place, the radial direction at cutterhead has spacing, can radially finely tune when hob head 3 is installed, location
Key 1 also around self axial-rotation, thus can effectively contain hob head 3 and process in the installing hole of cutterhead knife rest 4
In error, it is ensured that the interchangeability of hob head 3.Simultaneously during manufacturing, cutterhead knife rest 4, rolling
Tool rest 3, positioning key 1, the processing of alignment pin 2 have only to control alignment pin 2, corresponding installation respectively
The diameter in hole and positioning key 1, the width of keyway, without the cutterhead knife rest that strictly control can only be processed respectively
4 and hob head 3 on alignment pin 2, the relative size precision of positioning key 1 installing hole.
The thickness of described positioning key 1 upper end of the present utility model is less than the degree of depth of described hob head 3 keyway.And institute
The step surface stating positioning key 1 top and bottom transition is attached on the end face of described cutterhead knife rest 4, described alignment pin
The step surface of 2 top and bottom transition is attached on the end face of described cutterhead knife rest 4, to prevent positioning key 1 upper end
Face withstands on the bottom land of hob head 3 keyway, affects the installation of positioning key 1.Positioning key 1 and alignment pin 2 are by hobboing cutter
When seat 3 and cutterhead knife rest 4 are located by connecting, the step surface of positioning key 1 top and bottom transition and alignment pin 2
The step surface of top and bottom transition all withstands on the end face of cutterhead knife rest 4, is effectively improved the reliability of location,
Improve bearing capacity.
Hob head 3 of the present utility model and cutterhead knife rest 4 use positioning key 1 to connect with the location of alignment pin 2 combination
Connecing mode, location is reliable, it is easy to processing and manufacturing, and hob head 3 is returning during ream operation can be effectively ensured
Will not occur under torque effect to swing and rotate, improve the interchangeability of hob head 3 so that on-the-spot replacing hobboing cutter
Remain able to reach installation accuracy during seat 3, ensure cutter life.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.
Skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, above-described embodiment and
Principle of the present utility model is simply described, without departing from this utility model spirit and scope described in description
Under premise, this utility model also has various changes and modifications, and these changes and improvements both fall within claimed basis
In the range of utility model.This utility model claims scope by appending claims and equivalent circle thereof
Fixed.
Claims (10)
1. a raise boring machine hob head key pin assembly positioning structure, it is characterized in that: hob head is located by connecting with cutterhead knife rest by some groups of positioning keys and alignment pin, the size of described positioning key upper end is more than the size of described positioning key lower end, the upper end of described positioning key is connected with described hob head transition, and the lower end of described positioning key is connected with described cutterhead knife rest interference；The size of described alignment pin upper end is more than the size of described alignment pin lower end, and the upper end of described alignment pin is connected with described hob head transition, and the lower end of described alignment pin is connected with described cutterhead knife rest interference.
Raise boring machine hob head key pin assembly positioning structure the most according to claim 1, it is characterised in that the centre of described positioning key has the first screwed hole.
Raise boring machine hob head key pin assembly positioning structure the most according to claim 1, it is characterised in that the centre of described alignment pin has the second screwed hole.
Raise boring machine hob head key pin assembly positioning structure the most according to claim 1, it is characterised in that described hob head is connected with described cutterhead knife rest by trip bolt or bolt.
The width interference fits of raise boring machine hob head key pin assembly positioning structure the most according to claim 1, it is characterised in that the upper end of described positioning key is oval type, the width of described positioning key upper end and described hob head keyway.
Raise boring machine hob head key pin assembly positioning structure the most according to claim 5, it is characterised in that the length of described positioning key upper end is less than the length of described hob head keyway.
7. according to the raise boring machine hob head key pin assembly positioning structure described in any one of claim 1～6, it is characterized in that, in positioning key described in some groups and alignment pin, the centerline of its often symmetrical center line in the direction of the width of the described positioning key in group and described alignment pin is on same axis.
Raise boring machine hob head key pin assembly positioning structure the most according to claim 5, it is characterised in that the lower end of described positioning key is column type；The upper end of described alignment pin is column type, and lower end is column type.
Raise boring machine hob head key pin assembly positioning structure the most according to claim 6, it is characterised in that the thickness of described positioning key upper end is less than the degree of depth of described hob head keyway.
Raise boring machine hob head key pin assembly positioning structure the most according to claim 1, it is characterized in that, the step surface of described positioning key top and bottom transition is attached on the end face of described cutterhead knife rest, and the step surface of described alignment pin top and bottom transition is attached on the end face of described cutterhead knife rest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620295152.3U CN205577847U (en) | 2016-04-11 | 2016-04-11 | Hob head dowel combination location structure for raise boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620295152.3U CN205577847U (en) | 2016-04-11 | 2016-04-11 | Hob head dowel combination location structure for raise boring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205577847U true CN205577847U (en) | 2016-09-14 |
Family
ID=56864824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620295152.3U Expired - Fee Related CN205577847U (en) | 2016-04-11 | 2016-04-11 | Hob head dowel combination location structure for raise boring machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205577847U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715210A (en) * | 2016-04-11 | 2016-06-29 | 湖南创远高新机械有限责任公司 | Hobbing cutter seat and key pin combined positioning structure for raise boring machine |
| CN111502668A (en) * | 2020-04-27 | 2020-08-07 | 湖南创远高新机械有限责任公司 | Re-expanding cutter head and control method thereof |
-
2016
- 2016-04-11 CN CN201620295152.3U patent/CN205577847U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715210A (en) * | 2016-04-11 | 2016-06-29 | 湖南创远高新机械有限责任公司 | Hobbing cutter seat and key pin combined positioning structure for raise boring machine |
| CN105715210B (en) * | 2016-04-11 | 2018-08-10 | 湖南创远高新机械有限责任公司 | Raise boring machine hob head key pin assembly positioning structure |
| CN111502668A (en) * | 2020-04-27 | 2020-08-07 | 湖南创远高新机械有限责任公司 | Re-expanding cutter head and control method thereof |
| CN111502668B (en) * | 2020-04-27 | 2022-04-12 | 湖南创远高新机械有限责任公司 | Re-expanding cutter head and control method thereof |
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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 |
Granted publication date: 20160914 Termination date: 20190411 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |