CN207568604U - A kind of cutting head of roadheader pick and toothholder assembly - Google Patents
A kind of cutting head of roadheader pick and toothholder assembly Download PDFInfo
- Publication number
- CN207568604U CN207568604U CN201721738168.8U CN201721738168U CN207568604U CN 207568604 U CN207568604 U CN 207568604U CN 201721738168 U CN201721738168 U CN 201721738168U CN 207568604 U CN207568604 U CN 207568604U
- Authority
- CN
- China
- Prior art keywords
- toothholder
- pick
- bearing
- endoporus
- roadheader
- 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
Links
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The utility model is related to coal mine machinery cutting head of roadheader field, specially a kind of cutting head of roadheader pick and toothholder assembly, including pick, toothholder, bearing, sleeve, bearing cap, snap ring.Toothholder endoporus carries out Carburization Treatment, and endoporus installs a pair of bearings, and pick handle boss carries out bearing axial restraint with retaining groove snap ring, and bearing inner race is interference fitted with tooth handle, and outer ring is interference fitted with endoporus step circles cylinder.Installation sleeve among a pair of bearings, spring bearing bottom.Flange disk, spring bearing end face is fixedly mounted by hexagon socket head cap screw group in toothholder bottom plane, while prevents the sundries such as coal slime from entering toothholder endoporus.The utility model proposes a kind of cutting head of roadheader pick and toothholder assembly improve toothholder endoporus hardness and wear resistance, reduce the deformation of endoporus, toothholder endoporus installation bearing can promote the verticity of pick, make its stress, even wearing, so as to slow down the failure of pick, toothholder, bearing prevents pick axial float by boss at the top of tooth handle and retaining groove axial restraint.
Description
Technical field
The utility model is related to coal mine machinery cutting head of roadheader field, the multistage boss of hole machined in specially a kind of toothholder
And bearing is installed, the cutting head of roadheader pick and toothholder assembly of pick handle processing boss.
Background technology
Development machine is the important equipment of comprehensive mechanical coal mining machine, completes the driving in the tunnels such as coal mining, tunnel, and cutterhead is done
For the main energy-consuming parts of development machine, the good and bad of performance directly determines whole working efficiency and stability.Pick holder structure
For the operating mechanism of cutterhead, be in direct contact and cut rock, the performance of pick holder structure to the fltting speed of development machine,
Kinetic characteristics have a direct impact.
Cutting head of roadheader pick holder structure generally comprises pick and toothholder, and pick is clearance fit with toothholder, due to adding
Work error may cause pick that can not rotate, in cutting course single side stress can not uniform wear, pick is made to fail rapidly.Pick
When working into machine by institute it is loaded it is larger cause toothholder Internal Hole Deformation serious, endoporus makes pick can not full of the impurity such as coal slime
Rotation, it is impossible to which uniform wear causes to fail rapidly, reduces the working performance and efficiency of development machine.
Invention content
1. the technical issues of solving
In order to solve the problems, such as that existing cutting head of roadheader pick exists with toothholder, the utility model proposes a kind of drivings
Machine cutterhead pick and toothholder assembly.
2. technical solution
The utility model proposes a kind of cutting head of roadheader pick and toothholder assembly, including pick, toothholder, bearing, set
Cylinder, bearing cap, snap ring.
The pick includes hard alloy head, denticle, and wherein alloy head is fixed on by soldering in pick top mounting holes,
Processing round boss at the top of pick handle, carries out bearing 6 axial restraint, and processing groove in tail portion installs snap ring.
The multistage boss of hole machined in the toothholder, fixing bearing outer ring and end face, toothholder stay gap with pick head bottom surface,
Pick is made to be more easy to rotate, toothholder endoporus carries out carburizing, improves endoporus hardness and wearability.
The toothholder endoporus installs a pair of bearings, and outer ring is fixedly mounted on toothholder endoporus step circles cylinder, bearing outer ring with
Toothholder endoporus is interference fit, and bearing inner race is interference fit with pick handle, promotes the verticity during pick cutting,
Make pick uniform wear, bottom is mounted on toothholder endoporus step end face.
The sleeve is mounted on bearing 3 and among bearing 6, spring bearing end face, inner ring is interference fit with pick handle,
Outer ring is clearance fit with toothholder endoporus.
The flanged plate is fixed on toothholder bottom plane, spring bearing end face by hexagon socket head cap screw group, while prevents miscellaneous
Object enters toothholder endoporus.
The snap ring is mounted on pick handle tail groove, and axial restraint is carried out to bearing 3.
3. the beneficial effects of the utility model
The utility model changes cutting head of roadheader pick with tooth seat structure, pick handle processing boss, toothholder
The interior multistage boss of hole machined installs a pair of bearings, while toothholder endoporus carries out Carburization Treatment, is improved by the change of above structure
Toothholder endoporus hardness and wearability, reduce the deformation of endoporus, and the verticity that installation bearing can be improved in pick work makes it
Uniform stressed and abrasion；Toothholder and pick head bottom surface stay gap that can promote the rotation of pick；Pick tail portion processing groove installation
Snap ring can prevent the axial movement of bearing；Toothholder bottom plane mounting flange plate can effectively prevent the entrance of the sundries such as coal slime, protect
The components such as shield bearing are not damaged, elongated component service life.
Description of the drawings
Fig. 1 is a kind of cutting head of roadheader pick of the utility model and toothholder assembly schematic cross-sectional view；
In figure：1. flanged plate fixing bolt；2. flanged plate；3. bearing；4. sleeve；5. toothholder；6. bearing；7. pick；8.
Hard alloy head；9. toothholder；10. snap ring；11. flanged plate fixing bolt.
Specific embodiment
In Fig. 1, a kind of cutting head of roadheader pick of the utility model and toothholder assembly, including pick, toothholder, bearing,
Sleeve, flanged plate, snap ring；The pick（7）Including hard alloy head（8）, denticle, wherein alloy head（8）It is fixed by being brazed
In pick top mounting holes, processing round boss at the top of tooth handle, to bearing（6）Carry out axial restraint, tail portion processing groove, peace
Be loaded ring（10）To bearing（3）Carry out axial restraint.
The toothholder（5）、（9）The interior multistage boss of hole machined, toothholder stay gap with pick head bottom surface, pick are made to be more easy to revolve
Turn, toothholder endoporus carries out Carburization Treatment, improves endoporus hardness and wearability.
The toothholder（5）、（9）Endoporus installs bearing（3）、（6）, bearing outer ring matches with toothholder step inner cylinder face interference
It closes, bearing inner race coordinates with pick handle cylindrical interference, and bearing bottom is mounted on toothholder endoporus step end face, improves pick
Verticity in cutting course makes pick stress, even wearing.
The sleeve（4）Mounted on bearing（3）、（6）Centre, spring bearing bottom, sleeve inner ring and pick handle cylinder
Face is interference fitted, sleeve outer ring and toothholder endoporus clearance fit.
The flanged plate（2）Pass through hexagon socket head cap screw group（1）、（11）It is fixed on toothholder bottom plane, spring bearing（3）End
Face, while prevent the sundries such as coal slime from entering toothholder endoporus, reduce the damage to components such as bearing, sleeves, improve assembly and use the longevity
Life.
Claims (7)
1. a kind of cutting head of roadheader pick and toothholder assembly, including pick, toothholder, bearing, sleeve, flanged plate, snap ring；It is special
Sign is：The pick includes hard alloy head, denticle, and wherein alloy head is fixed on by soldering in pick top mounting holes,
Processing boss at the top of tooth handle, tail portion processing groove；The multistage boss of hole machined in the toothholder；The bearing outer ring and toothholder endoporus
For interference fit, bottom is mounted on toothholder interior step end face, and bearing inner race is interference fit with pick handle；In the sleeve
Hole is interference fit with pick handle, and outer ring is clearance fit with toothholder endoporus；The flanged plate is consolidated by hexagon socket head cap screw group
It is scheduled on toothholder bottom plane；The snap ring is mounted on pick handle tail groove.
2. a kind of cutting head of roadheader pick according to claim 1 and toothholder assembly, it is characterised in that：Pick handle top
Portion processes round boss, and axial restraint is carried out to bearing (6).
3. a kind of cutting head of roadheader pick according to claim 1 and toothholder assembly, it is characterised in that：Toothholder endoporus adds
The multistage boss of work, fixing bearing outer ring and end face, toothholder stay gap with pick head bottom surface, pick are made to be more easy to rotate, in toothholder
Hole carries out carburizing, improves endoporus hardness and wearability.
4. a kind of cutting head of roadheader pick according to claim 1 and toothholder assembly, it is characterised in that：Toothholder endoporus is pacified
A pair of bearings is filled, bearing inner race is interference fit with pick handle, and outer ring is fixedly mounted on toothholder endoporus step, promotes pick and cuts
Verticity during cutting makes pick uniform wear.
5. a kind of cutting head of roadheader pick according to claim 1 and toothholder assembly, it is characterised in that：Bearing (3) with
The intermediate installation sleeve of bearing (6), spring bearing end face.
6. a kind of cutting head of roadheader pick according to claim 1 and toothholder assembly, it is characterised in that：Pick handle tail
Portion's groove installation snap ring, axial restraint is carried out to bearing (3).
7. a kind of cutting head of roadheader pick according to claim 1 and toothholder assembly, it is characterised in that：It puts down toothholder bottom
Flange plate, spring bearing end face is fixedly mounted by hexagon socket head cap screw group in face, while prevents sundries from entering toothholder endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721738168.8U CN207568604U (en) | 2017-12-13 | 2017-12-13 | A kind of cutting head of roadheader pick and toothholder assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721738168.8U CN207568604U (en) | 2017-12-13 | 2017-12-13 | A kind of cutting head of roadheader pick and toothholder assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207568604U true CN207568604U (en) | 2018-07-03 |
Family
ID=62688161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721738168.8U Expired - Fee Related CN207568604U (en) | 2017-12-13 | 2017-12-13 | A kind of cutting head of roadheader pick and toothholder assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207568604U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550243A (en) * | 2020-04-30 | 2020-08-18 | 三一重型装备有限公司 | Split type cutting pick, cutting head and mining mechanical equipment |
-
2017
- 2017-12-13 CN CN201721738168.8U patent/CN207568604U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550243A (en) * | 2020-04-30 | 2020-08-18 | 三一重型装备有限公司 | Split type cutting pick, cutting head and mining mechanical equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20190360274A1 (en) | Split Roller Cone and PDC Composite Drill Bit | |
| CN204402475U (en) | The fastening easy processing dismounting guiding wear-resistant sleeve reciprocating impact digging portion of a kind of digger long bolt | |
| CN205895148U (en) | Roll and protect footpath PDC drill bit | |
| CN207568604U (en) | A kind of cutting head of roadheader pick and toothholder assembly | |
| CN206376299U (en) | Mining land leveller Spurtle blade | |
| CN210289637U (en) | High anticollision PDC drill bit | |
| CN107916931B (en) | Heading machine cutting head for hard rock working condition and heading machine | |
| CN201696053U (en) | Hob ring for shield machine | |
| CN203257889U (en) | Vertically installed three-row cylindrical roller combined rotating disc bearing retainer | |
| CN202148905U (en) | Double disk shaped central hob for shield machine | |
| CN202954821U (en) | Novel single-fulcrum central hob device for drivaging | |
| CN208467346U (en) | A kind of drilling aid | |
| CN204851271U (en) | Non -maintaining solid lubricant shield constructs quick -witted hobbing cutter subassembly | |
| CN106150398A (en) | Wear-resisting oil drill rocker | |
| CN217028795U (en) | Hobbing cutter protects tooth structure | |
| CN204299582U (en) | A kind of push-bench is " twolip taper middle tooth cutter with 13 | |
| CN205315529U (en) | Constant speed drive shaft ball cage assembly that greasy property is good | |
| CN216517817U (en) | Sealed roller bit with nylon dust ring | |
| CN210483539U (en) | Needle bearing thrust roller bit | |
| CN217501658U (en) | Abrasion-resistant structure of hob | |
| CN205136371U (en) | Automatic aligning robot holds with resistant grinding shaft | |
| CN205498499U (en) | Semi -floating rear drive axle semi -axis mounting structure | |
| CN218953308U (en) | Guide slipper and coal mining device | |
| CN207212335U (en) | A kind of voluble pick-shaped cutter device | |
| CN218542951U (en) | Single-row swing rod bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180703 Termination date: 20201213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |