CN204851271U - Non -maintaining solid lubricant shield constructs quick -witted hobbing cutter subassembly - Google Patents
Non -maintaining solid lubricant shield constructs quick -witted hobbing cutter subassembly Download PDFInfo
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- CN204851271U CN204851271U CN201520357749.1U CN201520357749U CN204851271U CN 204851271 U CN204851271 U CN 204851271U CN 201520357749 U CN201520357749 U CN 201520357749U CN 204851271 U CN204851271 U CN 204851271U
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Abstract
The utility model relates to a shield constructs quick -witted technical field, relates to a non -maintaining solid lubricant shield constructs quick -witted hobbing cutter subassembly particularly, its characterized in that: it comprises compound solid lubricant slide bearing, cutter ring, retaining ring, cutter body, arbor and end cover, the cutter body install on the arbor through two compound solid lubricant slide bearing, the cutter ring is fixed in on the cutter body through the retaining ring, install the end cover on the arbor in two compound solid lubricant slide bearing outsides. The utility model discloses avoided since use the congenital impact resistance of antifriction bearing not enough and under the tough conditions the unable drawback that realizes effective lubrication, prolonged the life of hobbing cutter subassembly, improved the work efficiency of entry driving machine.
Description
Technical field
The utility model relates to shield machine technical field, relates in particular to a kind of non-maintaining solid lubrication shield machine roller cutter assembly.
Background technology
Shield machine be one integrate light, mechanical, electrical, the complicated tunnel machine of liquid, sensing and information technology.Disk cutter is the critical component of shield machine tunneling construction, and it generally includes the annular cutter ring that the inner cutter shaft installed by bearing of cutter hub, cutter hub and cutter hub outside are installed.In tunneling process, the blade of cutter ring periphery embeds rock, and fractured rock surface is tunneled.Be arranged on the disk cutter on cutter head of shield machine is pressed on scar under the effect of jack, and along with the rotation of cutterhead, disk cutter revolves round the sun around cutter head center axle on the one hand, simultaneously around self axle rotation.In the process of driving, if hobboing cutter stopped rotation, the relative motion due to cutter ring and driving face will form the eccentric wear of cutter ring thus premature failure.Therefore the performance of bearing directly decides the application life of raceway assembly.
Current shield machine roller cutter work condition environment is complicated harsh, and bearing generally adopts taper roll bearing.Cutter bearing due to bear moment greatly impact force, insufficient lubrication and dust granules enter the factors such as hobboing cutter is inner cause cutter bearing to be out of shape, operate bad even stuck.This will make the serious eccentric wear of hobboing cutter cutter ring, fracture even comes off damages and shuts down, and has had a strong impact on the operating efficiency of development machine.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of non-maintaining solid lubrication shield machine roller cutter assembly.This hobboing cutter assembly can adapt to the complicated harsh work condition environment of development machine, moment shock loading greatly can be born, its composite solid lubricant bearing used can provide effective solid-liquid composite lubricated in rugged environment always, avoid due to cutter bearing distortion, operate the phenomenon such as bad and stuck, extends the application life of hobboing cutter assembly.
Technical problem to be solved in the utility model, be achieved through the following technical solutions: a kind of non-maintaining solid lubrication shield machine roller cutter assembly, is characterized in that: it is made up of composite solid lubricant sliding bearing, cutter ring, back-up ring, cutter hub, cutter shaft and end cover; Described cutter hub is arranged on cutter shaft by two composite solid lubricant sliding bearings, and cutter ring is fixed on cutter hub by back-up ring; Cutter shaft outside two composite solid lubricant sliding bearings is provided with end cover.
Described composite solid lubricant sliding bearing is made up of inner ring and outer ring; Evenly on the cylinder or conical friction surfaces of inner ring be furnished with blind hole, in blind hole, be inlaid with lubrication post.
Described inner ring material is that tensile strength is at σ
bthe high strength alloy steel of>=more than 500MPa; Outer ring is high-strength casting copper alloy, its tensile strength sigma
b>=400MPa, elongation rate δ>=5%.
Described blind hole is interference fit with lubrication post.
On described inner ring rubbing surface, the gross area of blind hole accounts for 10% ~ 35% of inner ring cylinder or conical friction surfaces area.
Described inner ring and the fitting face of outer ring are the conical surface, and conical inclination is 15 ° ~ 20 °; The gap of inner ring and outer ring is 0.2% ~ 0.5% of inner ring external diameter.
Described lubrication post is the shaping composite solid lubricant post with self-lubricating property.
Described blind hole and dip lubrication oil in lubrication post fit clearance.
The utility model has the advantages that and have employed composite solid lubricant sliding bearing, avoid owing to using the not enough drawback with effectively lubricating cannot be realized under severe conditions of the geneogenous impact resistance of rolling bearing, extend the application life of hobboing cutter assembly, improve the operating efficiency of development machine.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model non-maintaining solid lubrication shield machine roller cutter assembly;
The composite solid lubricant sliding bearing schematic diagram that Fig. 2 adopts for the utility model non-maintaining solid lubrication shield machine roller cutter assembly.
In figure, 101, composite solid lubricant sliding bearing; 102, cutter ring; 103, back-up ring; 104, cutter hub; 105, cutter shaft; 106, end cover; 0101, inner ring; 0102, outer ring, 0103, lubrication post.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, a kind of non-maintaining solid lubrication shield machine roller cutter assembly, is made up of composite solid lubricant sliding bearing 101, cutter ring 102, back-up ring 103, cutter hub 104, cutter shaft 105 and end cover 106; Described cutter hub 104 is arranged on cutter shaft 105 by two composite solid lubricant sliding bearings 101, and cutter ring 102 is fixed on cutter hub 104 by back-up ring 103; Cutter shaft 105 outside two composite solid lubricant sliding bearings 101 is provided with end cover 106, and end cover is installed on axle for fixing and sealed composite solid lubrication sliding bearing.
As shown in Figure 2, described composite solid lubricant sliding bearing 101 is made up of inner ring 0101 and outer ring 0102; Evenly on the cylinder or conical friction surfaces of inner ring 0101 be furnished with blind hole, in blind hole, be inlaid with lubrication post 0103.Described inner ring 0101 material is that tensile strength is at σ
bthe high strength alloy steel of>=more than 500MPa; Outer ring 0102 is high-strength casting copper alloy, its tensile strength sigma
b>=400MPa, elongation rate δ>=5%.Described blind hole is interference fit with lubrication post 0103.
Embodiment 2
On the basis of embodiment 1, evenly in the conical friction surfaces of described inner ring 0101 be furnished with blind hole, on described inner ring 0101 rubbing surface, the gross area of blind hole accounts for 10% ~ 35% of inner ring 0101 conical friction surfaces area; Described inner ring 0101 and the fitting face of outer ring 0102 are the conical surface, and conical inclination is 15 ° ~ 20 °; The gap of inner ring 0101 and outer ring 0102 is 0.2% ~ 0.5% of inner ring 0101 external diameter.Described lubrication post 0103 is for having the shaping composite solid lubricant post of self-lubricating property.Shaping composite solid lubricant post be with powder metallurgy manufacture by tin bronze, graphite, lead oxide, molybdenum bisuphide, polytetrafluoroethylene (PTFE) and hydroxyl magnesium silicate prepare composite porous.Described blind hole and dip lubrication oil in lubrication post 0103 fit clearance.
In shield machine tunneling process, this non-maintaining solid lubrication shield machine roller cutter assembly can bear larger axial impact loading and radial impact load, avoid owing to using the not enough drawback with effectively lubricating cannot be realized under severe conditions of the geneogenous impact resistance of rolling bearing, extend the application life of hobboing cutter assembly, improve the operating efficiency of development machine.
Embodiment 3
As shown in Figure 1, a kind of non-maintaining solid lubrication shield machine roller cutter group, is of a size of 19 inches, single-blade, is made up of composite solid lubricant sliding bearing 101, cutter ring 102, back-up ring 103, cutter hub 104, cutter shaft 105 and end cover 106; Described cutter hub 104 is arranged on cutter shaft 105 by two composite solid lubricant sliding bearings 101, and cutter ring 102 is fixed on cutter hub 104 by back-up ring 103; Cutter shaft 105 outside two composite solid lubricant sliding bearings 101 is provided with end cover 106, and end cover is installed on axle for fixing and sealed composite solid lubrication sliding bearing.
As shown in Figure 2, described composite solid lubricant sliding bearing 101 is made up of inner ring 0101 and outer ring 0102; Evenly in inner ring 0101 conical friction surfaces be furnished with blind hole, in blind hole, be inlaid with lubrication post 0103.Described inner ring 0101 material is high strength alloy steel 38CrMoAl; Outer ring 0102 is high-strength casting copper alloy ZCuZn38Mn2Pb2.The material that Internal and external cycle adopts, ensure that it has higher anti-wear performance, improves application life.Described blind hole is interference fit with lubrication post 0103, and be that its cooperation is more tight, lubricant effect is better.
On described inner ring 0101 rubbing surface, the gross area of blind hole accounts for 25% of inner ring 0101 cylinder or conical friction surfaces area; Blind hole is of a size of 8mm, and exists necessarily overlapping, and blind hole is interference fit with lubrication post 0103.The fitting face of inner ring 0101 and outer ring 0102 is the conical surface, and conical inclination is 18 °, and gap is 0.75mm.Described lubrication post 0103 is for having the shaping composite solid lubricant post of self-lubricating property.Shaping composite solid lubricant post be with powder metallurgy manufacture by tin bronze, graphite, lead oxide, molybdenum bisuphide, polytetrafluoroethylene (PTFE) and hydroxyl magnesium silicate prepare composite porous.Described blind hole and dip lubrication oil in lubrication post 0103 fit clearance, make lubricant effect better.
In shield machine tunneling process, this non-maintaining solid lubrication hobboing cutter assembly can bear larger axial impact loading and radial impact load, avoid owing to using the not enough drawback with effectively lubricating cannot be realized under severe conditions of the geneogenous impact resistance of rolling bearing, extend the application life of hobboing cutter assembly, improve the operating efficiency of development machine.This example, for large-size hobboing cutter assembly, in structural strength allowed band, suitably increases the ratio that the orderly inlaid hole gross area of arrangement accounts for taper seat area, more effectively can realize self-lubricating.
Embodiment 4
Substantially the same manner as Example 3, difference is: a kind of non-maintaining solid lubrication shield machine roller cutter group, be of a size of 17 inches, single-blade, on described inner ring 0101 rubbing surface, the gross area of blind hole accounts for 15% of inner ring 0101 cylinder or conical friction surfaces area, blind hole is of a size of 6mm, and Internal and external cycle circular cone conical inclination is 18 °, and gap is 0.43mm.
In shield machine tunneling process, this non-maintaining solid lubrication hobboing cutter assembly can bear larger axial impact loading and radial impact load, avoid owing to using the not enough drawback with effectively lubricating cannot be realized under severe conditions of the geneogenous impact resistance of rolling bearing, extend the application life of hobboing cutter assembly, improve the operating efficiency of development machine.And for reduced size hobboing cutter assembly, under the prerequisite ensureing effective self-lubricating, suitably reduce the ratio that the orderly inlaid hole gross area of arrangement accounts for taper seat area, the structural strength of reduced size shield machine roller cutter assembly can be increased under the prerequisite realizing effectively lubricating.
Claims (8)
1. a non-maintaining solid lubrication shield machine roller cutter assembly, is characterized in that: it is made up of composite solid lubricant sliding bearing (101), cutter ring (102), back-up ring (103), cutter hub (104), cutter shaft (105) and end cover (106); Described cutter hub (104) is arranged on cutter shaft (105) by two composite solid lubricant sliding bearings (101), and cutter ring (102) is fixed on cutter hub (104) by back-up ring (103); The cutter shaft (105) in two composite solid lubricant sliding bearing (101) outsides is provided with end cover (106).
2. one according to claim 1 non-maintaining solid lubrication shield machine roller cutter assembly, is characterized in that: described composite solid lubricant sliding bearing (101) is made up of inner ring (0101) and outer ring (0102); Evenly on the cylinder or conical friction surfaces of inner ring (0101) be furnished with blind hole, in blind hole, be inlaid with lubrication post (0103).
3. one according to claim 2 non-maintaining solid lubrication shield machine roller cutter assembly, is characterized in that: described inner ring (0101) material is that tensile strength is at σ
bthe high strength alloy steel of>=more than 500MPa; Outer ring (0102) is high-strength casting copper alloy, its tensile strength sigma
b>=400MPa, elongation rate δ>=5%.
4. one according to claim 2 non-maintaining solid lubrication shield machine roller cutter assembly, is characterized in that: described blind hole is interference fit with lubrication post (0103).
5. one according to claim 2 non-maintaining solid lubrication shield machine roller cutter assembly, is characterized in that: on described inner ring (0101) rubbing surface, the gross area of blind hole accounts for 10% ~ 35% of inner ring (0101) cylinder or conical friction surfaces area.
6. one according to claim 2 non-maintaining solid lubrication shield machine roller cutter assembly, is characterized in that: described inner ring (0101) and the fitting face of outer ring (0102) are the conical surface, and conical inclination is 15 ° ~ 20 °; The gap of inner ring (0101) and outer ring (0102) is 0.2% ~ 0.5% of inner ring (0101) external diameter.
7. one according to claim 2 non-maintaining solid lubrication shield machine roller cutter assembly, is characterized in that: described lubrication post (0103) is for having the shaping composite solid lubricant post of self-lubricating property.
8. one according to claim 2 non-maintaining solid lubrication shield machine roller cutter assembly, is characterized in that: described blind hole and dip lubrication oil in lubrication post (0103) fit clearance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520357749.1U CN204851271U (en) | 2015-05-29 | 2015-05-29 | Non -maintaining solid lubricant shield constructs quick -witted hobbing cutter subassembly |
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| CN201520357749.1U CN204851271U (en) | 2015-05-29 | 2015-05-29 | Non -maintaining solid lubricant shield constructs quick -witted hobbing cutter subassembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636884A (en) * | 2020-05-29 | 2020-09-08 | 江苏马超地下工程设备有限公司 | Shield machine cutter for micro tunnel equipment |
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2015
- 2015-05-29 CN CN201520357749.1U patent/CN204851271U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636884A (en) * | 2020-05-29 | 2020-09-08 | 江苏马超地下工程设备有限公司 | Shield machine cutter for micro tunnel equipment |
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