CN209354150U - A kind of mine heavy roadheader cutterhead connection structure and development machine - Google Patents
A kind of mine heavy roadheader cutterhead connection structure and development machine Download PDFInfo
- Publication number
- CN209354150U CN209354150U CN201822081747.0U CN201822081747U CN209354150U CN 209354150 U CN209354150 U CN 209354150U CN 201822081747 U CN201822081747 U CN 201822081747U CN 209354150 U CN209354150 U CN 209354150U
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- China
- Prior art keywords
- cutterhead
- nut
- counterbore
- studs
- pushing tow
- Prior art date
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- Withdrawn - After Issue
Links
- 238000011161 development Methods 0.000 title claims abstract description 17
- 230000001050 lubricating effect Effects 0.000 claims abstract description 11
- 239000004519 grease Substances 0.000 claims abstract description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 5
- 230000005641 tunneling Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Road Repair (AREA)
Abstract
The utility model relates to the manufacturing fields of mine heavy roadheader, specifically a kind of mine heavy roadheader cutterhead connection structure and development machine, including cutterhead, cut main shaft and floating seal seat, axially it is connected and fixed between the cutterhead and cut main shaft end by the studs of at least two groups and breakaway nut；The cutterhead front end is equipped with cutterhead counterbore identical with studs quantity, and the outboard end of studs is threadedly engaged with the breakaway nut being arranged in cutterhead counterbore；Nut protection cap is detachably provided on the outside of the cutterhead counterbore; lubricating grease is filled in the enclosure space that the nut protection cap and cutterhead counterbore are formed; the mine heavy roadheader cutterhead connection structure and development machine of the utility model; it is not easy to wear to tighten the screw thread cooperated in time saving and energy saving and cut main shaft with stud, and connects and reliably is not easy to loosen.
Description
Technical field
The utility model relates to the manufacturing field of mine heavy roadheader, specifically a kind of mine heavy roadheader cutterhead connection knot
Structure and development machine.
Background technique
Coal mine total rock tunnel or public affairs, railway total rock tunnel of the China for formation hardness f≤12, are selected high-power heavy mostly
Type boom-type roadheader.Since lane tunnel environment is quite severe, this is just to the safety and stability of high-power heavy type boom-type roadheader
Property, more stringent requirements are proposed for property easy to maintain, especially for the cutterhead for participating in direct broken rock, this requires its cutterheads
Connection structure is safe and reliable, and cutterhead connects be not easy to loosen in use, and installation maintenance is simple and convenient.
Currently, high-power heavy type boom-type roadheader cutterhead generally passes through the bolt of two M30 or bigger specification and cuts
It cuts main shaft axially to connect, and this two bolts is tightened come locking according to certain torque value.In actual use, this connection
There are following several respects in mode: first is that Bolt Tightening Force square is larger, generally more than 1800N m, and be furnished with around bolt
Pick box is not available torque multiplier, is only tightened by torque wrench time-consuming and laborious；Second is that directly being twisted by torque wrench
This tight two bolts do not allow easily generated enough and correct pretightning force, and bolt is in tunneling machine cutting rock, the biggish feelings of vibration
It is easily loosened under condition, causes cutterhead to connect spline with cut main shaft and be seriously worn；Third is that cutterhead of every disassembly or replacement one
When the connection bolt of secondary loosening, requires directly to tighten primary connection bolt, be easy to cause in cut main shaft and bolt cooperation
Screw thread excessive wear and scrap.
Utility model content
The goal of the invention of the utility model is to overcome defect described in background technique, to realize that one kind tightens province
In Shi Shengli and cut main shaft with the screw thread of stud cooperation it is not easy to wear, connect reliably steady mine heavy roadheader cutting
Head connection structure and development machine.
For achieving the above object, the technical solution of the utility model is: a kind of mine heavy roadheader cutterhead connection knot
Structure, including cutterhead, cut main shaft and the floating seal seat for being sleeved in cut main shaft and serving to cutterhead axially position,
It is axially connected and fixed, and cut by the studs of at least two groups and breakaway nut between the cutterhead and cut main shaft end
It cuts head and is connect with cut main shaft by spline circumferential registration；The cutterhead front end is equipped with cutting identical with studs quantity
Head counterbore, the studs is inserted into from cutterhead counterbore base, and studs inner end is threadedly engaged with cut main shaft, double
The outboard end of header stud is threadedly engaged with the breakaway nut being arranged in cutterhead counterbore, and the cutterhead counterbore depth is greater than super
The height of nut；Nut protection cap is detachably provided on the outside of the cutterhead counterbore, the nut protection cap and cutterhead are heavy
Lubricating grease is filled in the enclosure space that hole is formed, the lubricating grease generally uses common No. 2 extreme pressure lithium base lubricating greases of development machine；
The breakaway nut includes nut main body, pushing tow screw and hard washer, on the outer marginal circumference of the nut main body
No less than 6 pushing tow tapped through holes are axially provided with, the pushing tow screw fit is set in the pushing tow tapped through hole, and
The length of pushing tow screw is greater than the length of pushing tow tapped through hole, the nut main body of the breakaway nut and cutterhead counterbore bottom surface it
Between studs periphery be arranged with hard washer, the hard washer is close to cutterhead counterbore bottom surface, and the pushing tow spiral shell
The end of nail abuts against on the outside of the hard washer.
As the optimal technical scheme of the utility model, one end of the studs cooperation breakaway nut is coaxially arranged with
Studs outer-hexagonal head facilitates and the studs other end is threaded into cut main shaft with tool.
The head end of the pushing tow screw is coaxially arranged with pushing tow screw outer-hexagonal head, facilitates and is screwed into pushing tow screw with tool
And pass through the pushing tow tapped through hole.
It is axially disposed at nut protection cap center to have band internal screw thread as the optimal technical scheme of the utility model
Lid through-hole, protection bonnet bolt is equipped in the lid through-hole, the nut protection cap is solid by protection bonnet bolt
Surely it is set at the end face outside of studs；Protection cap counterbore, the protection are coaxially arranged on the outside of the lid through-hole
Bonnet bolt cooperates from protection cap counterbore base to be screwed in lid through-hole.
As the optimal technical scheme of the utility model, the outer surface of the nut protection cap is spherical surface, and the nut is protected
Seam allowance is machined on the inside of protecting cover, seam allowance and cutterhead counterbore form excessive cooperation.
The utility model also provides a kind of development machine, and above-mentioned mine heavy roadheader cutterhead connection is provided on the development machine
Structure.
The mine heavy roadheader cutterhead connection structure of the utility model and development machine the utility model has the advantages that
1. the mine heavy roadheader cutterhead connection structure of the utility model, the pushing tow spiral shell on breakaway nut is tightened using tool
Nail, pushing tow screw can hold out against cutterhead counterbore bottom surface or hard gasket, so that it may obtain studs enough simultaneously by pure tension
And correct pretightning force, so that cutterhead fixing bolt is made to be not easy to loosen in tunneling machine cutting rock, the biggish situation of vibration,
It avoids cutterhead and connect the case where spline is seriously worn with cut main shaft.
2. the mine heavy roadheader cutterhead connection structure of the utility model only needs a people to tighten pushing tow using common wrench
Screw, so that it may which so that studs obtains enough and correct pretightning force, cutterhead fixation is simple and convenient, avoids bolt and twists
Clamp force square is larger, one tightens difficult situation and occurs.
3. the mine heavy roadheader cutterhead connection structure of the utility model, dismountable nut protection cap is super for preventing
Nut is squeezed during tunneling machine cutting, wears, and lubricating grease can prevent sludge, dust etc. from contacting with breakaway nut,
Play the role of antirust, makes not easy to wear with the screw thread of stud cooperation in cut main shaft.
4. the development machine of the utility model is cut because having used above-mentioned mine heavy roadheader cutterhead connection structure to have
It is reliability and durability to cut head connection, easy to maintenance quick, high reliablity, the advantages of being hardly damaged.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the mine heavy roadheader cutterhead connection structure of the utility model；
Fig. 2 is the enlarged structure schematic diagram of A in Fig. 1.
In figure: 1- cutterhead, 2- cut main shaft, 3- floating seal seat, 4- studs, 401- studs outer-hexagonal
Head, 5- breakaway nut, 501- nut main body, 502- pushing tow screw, 521- pushing tow screw outer-hexagonal head, 6- spline, 7- cutterhead
Counterbore, 8- nut protection cap, 801- protection cap counterbore, 9- protect bonnet bolt, 10- seam allowance, 11- hard washer.
Specific embodiment
Knot is connected to the mine heavy roadheader cutterhead of the utility model with reference to the accompanying drawing and by specific embodiment
Structure and development machine do more detailed description.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
Embodiment:
The mine heavy roadheader cutterhead connection structure of the utility model, including cutterhead 1, cut main shaft 2 and be sleeved on cut
Cut the floating seal seat 3 for playing axially position on main shaft 2 and to cutterhead 1, the cutterhead 1 and 2 end of cut main shaft it
Between be connected and fixed by the way that two groups of studs 4 and breakaway nut 5 are axial, and cutterhead 1 and cut main shaft 2 pass through 6 circumference of spline
It is located by connecting；1 front end of cutterhead be equipped with cutterhead counterbore 7 identical with 4 quantity of studs, the studs 4 from
The insertion of 7 bottom of cutterhead counterbore, and 4 inner end of studs is threadedly engaged with cut main shaft 2, the outboard end of studs 4 and
The breakaway nut 5 being arranged in cutterhead counterbore 7 is threadedly engaged, and 7 depth of cutterhead counterbore is greater than the height of breakaway nut 5；
7 outside of cutterhead counterbore is detachably provided with nut protection cap 8, what the nut protection cap 8 was formed with cutterhead counterbore 7
Lubricating grease is filled in enclosure space, the lubricating grease uses common No. 2 extreme pressure lithium base lubricating greases of development machine；
The breakaway nut 5 includes nut main body 501, pushing tow screw 502 and hard washer 11, the nut main body 501
Outer marginal circumference on be axially provided with 6 pushing tow tapped through holes, the pushing tow screw 502 is equipped with logical in the pushing tow screw thread
In hole, and the length of pushing tow screw 502 be greater than pushing tow tapped through hole length, the nut main body 501 of the breakaway nut 5 and cut
It cuts 4 periphery of studs between 7 bottom surface of a counterbore and is arranged with hard washer 11, the hard washer 11 and cutterhead counterbore 7
Bottom surface is close to, and the end of the pushing tow screw 502 abuts against 11 outside of hard washer.
The studs 4 cooperates one end of breakaway nut 5 to be coaxially arranged with studs outer-hexagonal head 401, facilitates use
4 other end of studs is threaded into cut main shaft 2 by tool；The head end of the pushing tow screw 502 is coaxially arranged with pushing tow spiral shell
Outer-hexagonal head 521 is followed closely, facilitates and pushing tow screw 502 is screwed into tool and passes through the pushing tow tapped through hole.
It is axially disposed at 8 center of nut protection cap to have tapped lid through-hole, match in the lid through-hole
Conjunction is provided with protection bonnet bolt 9, and the nut protection cap 8 is by protecting bonnet bolt 9 to be fixedly installed on the outboard end of studs 4
At face；It is coaxially arranged with protection cap counterbore 801 on the outside of the lid through-hole, the protection bonnet bolt 9 is from protection cap counterbore 801
Bottom cooperation screws in lid through-hole；The outer surface of the nut protection cap 8 is spherical surface, is processed on the inside of the nut protection cap 8
There is seam allowance 10, seam allowance 10 and cutterhead counterbore 7 form excessive cooperation.
The utility model also provides a kind of development machine, and above-mentioned mine heavy roadheader cutterhead connection is provided on the development machine
Structure is not repeated to illustrate since cutterhead connection structure is same as described above, and about the other structures of development machine and constructs special
Sign is the prior art, and so it will not be repeated.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
Enclose, the equivalent variations that any those skilled in the art is made under the premise of not departing from the utility model conceptions and principles with
Modification should belong to the range of the utility model protection.
Claims (8)
1. a kind of mine heavy roadheader cutterhead connection structure, it is characterised in that: including cutterhead, cut main shaft and be sleeved on cutting
The floating seal seat for playing axially position on main shaft and to cutterhead, by extremely between the cutterhead and cut main shaft end
Few two groups of studs and breakaway nut are axially connected and fixed, and cutterhead is connected with cut main shaft by spline circumferential registration
It connects；The cutterhead front end is equipped with cutterhead counterbore identical with studs quantity, and the studs is from cutterhead counterbore
Bottom insertion, and studs inner end is threadedly engaged with cut main shaft, is set in the outboard end and cutterhead counterbore of studs
The breakaway nut set is threadedly engaged, and the cutterhead counterbore depth is greater than the height of breakaway nut；On the outside of the cutterhead counterbore
It is detachably provided with nut protection cap, fills lubricating grease in the enclosure space that the nut protection cap and cutterhead counterbore are formed；
The breakaway nut includes nut main body, pushing tow screw and hard washer, axial direction on the outer marginal circumference of the nut main body
No less than 6 pushing tow tapped through holes are provided with, the pushing tow screw fit is set in the pushing tow tapped through hole, and pushing tow
The length of screw is greater than the length of pushing tow tapped through hole, between the nut main body and cutterhead counterbore bottom surface of the breakaway nut
Studs periphery is arranged with hard washer, and the hard washer is close to cutterhead counterbore bottom surface, and the pushing tow screw
End abuts against on the outside of the hard washer.
2. mine heavy roadheader cutterhead connection structure according to claim 1, it is characterised in that: the studs cooperation
One end of breakaway nut is coaxially arranged with studs outer-hexagonal head, facilitates to be threaded into the studs other end with tool and cut
Cut main shaft.
3. mine heavy roadheader cutterhead connection structure according to claim 1, it is characterised in that: the head of the pushing tow screw
End is coaxially arranged with pushing tow screw outer-hexagonal head, facilitates and pushing tow screw is screwed into tool and is passed through the pushing tow tapped through hole.
4. mine heavy roadheader cutterhead connection structure according to claim 1, it is characterised in that: in the nut protection cap
It is axially disposed at the heart to have tapped lid through-hole, protection bonnet bolt, the spiral shell are equipped in the lid through-hole
Female protection cap is by protecting bonnet bolt to be fixedly installed at the end face outside of studs.
5. mine heavy roadheader cutterhead connection structure according to claim 4, it is characterised in that: outside the lid through-hole
Side is coaxially arranged with protection cap counterbore, and the protection bonnet bolt cooperates from protection cap counterbore base to be screwed in lid through-hole.
6. mine heavy roadheader cutterhead connection structure according to claim 1 or 4, it is characterised in that: the nut protection
The outer surface of lid is spherical surface, and seam allowance is machined on the inside of the nut protection cap, and seam allowance and cutterhead counterbore form excessive cooperation.
7. mine heavy roadheader cutterhead connection structure according to claim 1, it is characterised in that: the lubricating grease is using pick
Into common No. 2 extreme pressure lithium base lubricating greases of machine.
8. a kind of development machine, it is characterised in that: it is provided with the driving of heavy type described in claim 1-7 any one claim
Machine cutterhead connection structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822081747.0U CN209354150U (en) | 2018-12-12 | 2018-12-12 | A kind of mine heavy roadheader cutterhead connection structure and development machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822081747.0U CN209354150U (en) | 2018-12-12 | 2018-12-12 | A kind of mine heavy roadheader cutterhead connection structure and development machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209354150U true CN209354150U (en) | 2019-09-06 |
Family
ID=67798906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822081747.0U Withdrawn - After Issue CN209354150U (en) | 2018-12-12 | 2018-12-12 | A kind of mine heavy roadheader cutterhead connection structure and development machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209354150U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555530A (en) * | 2018-12-12 | 2019-04-02 | 中铁工程装备集团隧道设备制造有限公司 | A kind of mine heavy roadheader cutterhead connection structure and development machine |
-
2018
- 2018-12-12 CN CN201822081747.0U patent/CN209354150U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555530A (en) * | 2018-12-12 | 2019-04-02 | 中铁工程装备集团隧道设备制造有限公司 | A kind of mine heavy roadheader cutterhead connection structure and development machine |
| CN109555530B (en) * | 2018-12-12 | 2023-11-07 | 中铁工程装备集团隧道设备制造有限公司 | Cutting head connecting structure of heavy tunneling machine and tunneling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190906 Effective date of abandoning: 20231107 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190906 Effective date of abandoning: 20231107 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |