CN212832308U - Crown wheel structure for mine hoist - Google Patents
Crown wheel structure for mine hoist Download PDFInfo
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- CN212832308U CN212832308U CN202021894334.5U CN202021894334U CN212832308U CN 212832308 U CN212832308 U CN 212832308U CN 202021894334 U CN202021894334 U CN 202021894334U CN 212832308 U CN212832308 U CN 212832308U
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- head sheave
- oil injection
- sheave shaft
- shaft
- moving
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Abstract
The utility model particularly relates to a mine is aerial wheel structure for lifting machine has solved the long-term operation of current aerial wheel and has had the poor problem that influences life and promotion output of flexibility. Two ends of the head sheave shaft are provided with supporting seats, a movable head sheave is arranged between the two supporting seats, and a gap between each movable head sheave and the head sheave shaft is provided with two rolling bearings which are attached to the movable head sheave and distributed left and right; one end of the head sheave shaft is provided with an oil injection main hole along the axial direction, and the oil injection main hole is radially provided with a plurality of oil injection branch holes which are communicated with the oil injection main hole and are communicated with a gap between two rolling bearings of each traveling head sheave. The utility model discloses antifriction bearing's setting has improved the flexibility ability by a wide margin, has prolonged life, and the change of oil filler hole position has reduced intensity of labour moreover, has saved manpower, financial resources, has shortened sky wheel welded production cycle, and the lubricated number of times that has significantly reduced when guaranteeing lubricated effect, further, adopt the outer diameter that moves about the sky wheel makes the sky wheel axle diminish completely, the cost is reduced.
Description
Technical Field
The utility model relates to a mine lift system's component part specifically is a crown wheel structure for mine lift.
Background
The head sheave structure is one of the main parts of the working system of the mine hoist, and mainly comprises a head sheave shaft, a fixed head sheave and a plurality of moving head sheaves, wherein sliding bearings are arranged between all the moving head sheaves and the head sheave shaft, during operation, a steel wire rope on the mine hoist drives the fixed head sheave to rotate so as to drive the head sheave shaft to rotate, and finally drives all the moving head sheaves to rotate, and relative displacement can be realized between the moving head sheave and the head sheave shaft.
With the continuous deep expansion of the mining of mineral resources, a large-scale ground friction type hoist becomes one of important devices in hoisting equipment, and a head sheave structure is one of the main components of a friction hoist working system, is arranged at the top of a derrick, is a fixed pulley for adjusting the movement direction of a steel wire rope, and is used for supporting the steel wire rope connecting a hoist drum and a container and guiding the steel wire rope to turn. Whether the head sheave operates normally or not directly influences the yield improvement, the sliding shaft sleeve in the head sheave structure is the key of head sheave operation, the sliding bearing does not rotate flexibly, the service life of a head sheave shaft can be influenced, and the benefit of a coal enterprise is directly related.
Disclosure of Invention
The utility model discloses a solve the long-term operation of current head sheave and have the poor problem that influences life and hoisting output of flexibility, provide a head sheave structure for mine hoist.
The utility model discloses an adopt following technical scheme to realize: a head sheave structure for a mine hoist comprises a head sheave shaft, wherein supporting seats are arranged at two ends of the head sheave shaft, a plurality of moving head sheaves which are sleeved on the head sheave shaft and are in clearance fit with the head sheave shaft are arranged between the two supporting seats, and two rolling bearings which are attached to the moving head sheaves and distributed left and right are arranged at the clearance between each moving head sheave and the head sheave shaft; one end of the head sheave shaft is provided with an oil injection main hole along the axial direction, and the oil injection main hole is radially provided with a plurality of oil injection branch holes which are communicated with the oil injection main hole and are communicated with a gap between two rolling bearings of each traveling head sheave.
In the structural design, the rolling bearing is used for replacing the original sliding bearing, the rotation is flexible, and the service life of the crown block shaft is prolonged; the traditional fixed head sheave is completely replaced by the movable head sheave, so that the lifting operation can be completed without rotating the head sheave shaft, conditions are provided for designing an oil injection hole in the center of the head sheave shaft, the realization is more convenient and quicker, the procedure of processing the oil injection hole on the movable head sheave is omitted, and simultaneously, because the head sheave shaft does not rotate, the bearing seats at the two ends of the head sheave shaft are replaced by the supporting seats, and the stress is more stable and reliable; the problem that the service life is influenced and the yield is improved due to poor flexibility in long-term operation of the conventional head sheave is solved.
The outer ends of the moving head sheaves at the left and right ends are respectively provided with a baffle plate sleeved on the head sheave shaft, and the inner ends of the moving head sheaves at the left and right ends and the two ends of the other moving head sheaves are respectively provided with a positioning sleeve tightly attached to the rolling bearing.
The baffle and the positioning sleeve are additionally arranged, so that the movable head sheave is axially limited while small movement is ensured.
The utility model has the advantages of reasonable and reliable structural design, the setting of antifriction bearing has improved the flexibility ability by a wide margin, has prolonged life, and the change of oiling hole position has reduced intensity of labour moreover, has saved manpower, financial resources, has shortened the production cycle of head sheave welding, has greatly reduced lubricated number of times when guaranteeing the lubricated effect, and further, adopt the head sheave that moves about all to make the external diameter of head sheave axle diminish, the cost is reduced; has the advantages of ingenious structure, convenient processing and low cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-a head sheave shaft, 2-a supporting seat, 3-a traveling head sheave, 4-a rolling bearing, 5-an oil injection main hole, 6-an oil injection branch hole, 7-a baffle and 8-a positioning sleeve.
Detailed Description
A head sheave structure for a mine hoist comprises a head sheave shaft 1, wherein two ends of the head sheave shaft 1 are provided with supporting seats 2, a plurality of moving head sheaves 3 which are sleeved on the head sheave shaft 1 and are in clearance fit with the head sheave shaft 1 are arranged between the two supporting seats 2, and a clearance between each moving head sheave 3 and the head sheave shaft 1 is provided with two rolling bearings 4 which are attached to the head sheave shaft and distributed left and right; one end of the head sheave shaft 1 is provided with a main oiling hole 5 along the axial direction, and the main oiling hole 5 is radially provided with a plurality of branch oiling holes 6 which are communicated with the main oiling hole 5 and are communicated with the gap between the two rolling bearings 4 of each travelling head sheave 3.
The outer end parts of the moving head sheave 3 positioned at the left and right end parts are both provided with baffle plates 7 sleeved on the head sheave shaft 1, and the inner end parts of the moving head sheave 3 positioned at the left and right end parts and the two end parts of the other moving head sheave 3 are both provided with positioning sleeves 8 tightly attached to the rolling bearings 4.
In the specific implementation process, the encoders are respectively arranged on the steel wire ropes, so that the sliding numerical value can be measured, and the large sliding numerical value of the rope can be informed, and the turning of the rope groove is facilitated.
Claims (2)
1. The utility model provides a mine is head sheave structure for lifting machine, includes head sheave axle (1), its characterized in that: two ends of the top sheave shaft (1) are provided with supporting seats (2), a plurality of moving top sheaves (3) which are sleeved on the top sheave shaft (1) and are in clearance fit with the top sheave shaft (1) are arranged between the two supporting seats (2), and two rolling bearings (4) which are attached to the moving top sheaves (3) and distributed left and right are arranged at the clearance between the moving top sheave (3) and the top sheave shaft (1); one end of the head sheave shaft (1) is provided with an oil injection main hole (5) along the axial direction, and the oil injection main hole (5) is radially provided with a plurality of oil injection branch holes (6) which are communicated with the oil injection main hole and communicated with a gap between two rolling bearings (4) of each traveling head sheave (3).
2. The crown block structure for a mine hoist of claim 1, wherein: the outer end parts of the moving head sheave (3) positioned at the left and right end parts are respectively provided with a baffle (7) sleeved on the head sheave shaft (1), and the inner end parts of the moving head sheave (3) positioned at the left and right end parts and the two end parts of the other moving head sheave (3) are respectively provided with a positioning sleeve (8) tightly attached to the rolling bearing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021894334.5U CN212832308U (en) | 2020-09-03 | 2020-09-03 | Crown wheel structure for mine hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021894334.5U CN212832308U (en) | 2020-09-03 | 2020-09-03 | Crown wheel structure for mine hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212832308U true CN212832308U (en) | 2021-03-30 |
Family
ID=75145897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021894334.5U Active CN212832308U (en) | 2020-09-03 | 2020-09-03 | Crown wheel structure for mine hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212832308U (en) |
-
2020
- 2020-09-03 CN CN202021894334.5U patent/CN212832308U/en active Active
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