CN217736223U - High-speed shaft split type end cover device of power plant coal mill speed reducer - Google Patents
High-speed shaft split type end cover device of power plant coal mill speed reducer Download PDFInfo
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- CN217736223U CN217736223U CN202221780317.8U CN202221780317U CN217736223U CN 217736223 U CN217736223 U CN 217736223U CN 202221780317 U CN202221780317 U CN 202221780317U CN 217736223 U CN217736223 U CN 217736223U
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- end cover
- butt joint
- speed reducer
- ring
- power plant
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Abstract
The utility model discloses a high-speed shaft subdivision formula end cover device of power plant's coal pulverizer speed reducer, including end cover, upper end cover, oil filler point, fixed orifices, spacing ring, butt plate, constant head tank, locking screw. The utility model has the advantages that: the whole polymer 683 material preparation that adopts of oil blanket constitutes ring shaped structure, improves the life of oil blanket, in the embodiment of the utility model, the bottom of oil blanket is provided with the butt ring, be provided with the second spring between butt ring and the oil blanket, it is sealed that make oil blanket can change self adjustment axle head along with the shafting through the second spring, the both ends of butt plate in this device are run through and are provided with the through-hole, the both ends of lower extreme cover are provided with the screw, it is connected with the locking screw to twist in the screw, the locking screw runs through the through-hole of butt plate and on it nested connection has first spring, make lower extreme cover, upper end cover can pass through locking screw high-speed joint locking and split, and through the elasticity extrusion locking screw of first spring, avoid it not hard up.
Description
Technical Field
The utility model relates to an end cover device specifically is a coal pulverizer speed reducer high-speed shaft subdivision formula end cover device of power plant belongs to end cover technical field.
Background
The bearing position and the bearing chamber of the coal mill speed reducer are started under the high-torque conditions of heavy load, low speed, heavy load and high speed, and under the effects of equipment vibration and radial impact, the bearing chamber or the bearing position is subjected to metal fatigue to generate permanent deformation, and the bearing inner ring and the shaft or the bearing outer ring and the bearing chamber are in clearance fit, so that relative motion is caused to generate abrasion.
However, most of the existing end cover devices have various problems:
1) The original high-speed shaft seal is an integral end cover in a labyrinth form, a set of skeleton oil seal is hermetically installed between the end cover and the shaft, and due to the fact that the service life of the skeleton oil seal is short, and a coal mill speed reducer is frequently in variable-load operation, the working condition is severe, and oil leakage of the end cover is caused by blocking of an oil return hole in the end cover;
2) Because the distance between the coupler and the end cover of the speed reducer is narrow, the motor is frequently required to be moved away, the coupler is removed, the end cover is unfastened, the coupler is recovered after the framework oil seal is replaced and the oil return hole is cleaned, the coupler is aligned again, and the workload is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-speed shaft subdivision formula end cover device of power plant's coal pulverizer speed reducer in order to solve above-mentioned at least one technical problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose: the utility model provides a high-speed axle subdivision formula end cover device of power plant's coal pulverizer speed reducer, includes:
the end cover mechanism comprises a lower end cover and an upper end cover, wherein the lower end cover and the upper end cover are of semicircular annular structures, are mutually butted to form an annular structure, and jointly form a main body structure of the split end cover device;
the oil seal mechanism comprises an oil filling hole, a limiting ring and an oil seal pad, the oil seal mechanism is arranged on the end cover mechanism, the limiting ring is respectively fixed on the upper surfaces of the lower end cover and the upper end cover and combined to form a circular structure, the oil seal pad for oil sealing is in limit butt joint in an annular groove in the limiting ring process, the oil filling hole is arranged at the top of the oil filling hole in a concave mode, and the oil filling hole penetrates through the inner side and the outer side of the limiting ring;
the connecting and locking mechanism comprises fixing holes, the connecting and locking mechanism is arranged on the end cover mechanism, the fixing holes are respectively arranged on the lower end cover and the upper end cover in a penetrating mode and are arranged at equal angles, and the lower end cover and the upper end cover penetrate through the fixing holes through screws and are connected and locked with the speed reducer.
As a further aspect of the present invention: the whole oil seal pad is made of a high polymer 683 material to form a circular ring-shaped structure, and the diameter of a central annular through hole of the oil seal pad is equal to that of a central through hole of the whole structure formed by the lower end cover and the upper end cover.
As a further aspect of the present invention: the bottom of the oil seal pad is provided with a butt joint ring, a second spring is arranged between the butt joint ring and the oil seal pad, and the butt joint ring is in limit butt joint with the tops of the lower end cover and the upper end cover.
As a further aspect of the present invention: the butt joint plate is fixed at the two ends of the lower end cover in a protruding mode, the positioning grooves are formed in the two ends of the upper end cover in an inwards-concave mode, a layer of sealing rubber pad is glued on the surface of each butt joint plate, and the butt joint plates are in limit butt joint in the positioning grooves.
As a further aspect of the present invention: through holes are arranged at two ends of the butt joint plate in a penetrating mode, screw holes are arranged at two ends of the lower end cover, locking screws are screwed in the screw holes and connected with the screw holes, and the locking screws penetrate through the through holes of the butt joint plate and are connected with first springs in an embedded mode.
As a further aspect of the present invention: the outer wall center department of lower extreme cover, upper end cover all is the indent formula and is provided with the locking groove, and the spacing reinforced strip that has docked in the locking groove, and the reinforced strip revolves soon the locking through self tapping screw with lower extreme cover, upper end cover.
The utility model has the advantages that:
1) The whole oil seal pad is made of a high polymer 683 material to form a circular structure, so that the service life of the oil seal pad is prolonged;
2) In the embodiment of the utility model, the bottom of the oil seal pad is provided with a butt joint ring, a second spring is arranged between the butt joint ring and the oil seal pad, and the oil seal pad can adjust the shaft end seal along with the change of the shaft system through the second spring;
3) The two ends of the butt joint plate in the device are provided with through holes in a penetrating mode, the two ends of the lower end cover are provided with screw holes, locking screws are screwed in the screw holes and connected with the screw holes, the locking screws penetrate through the through holes of the butt joint plate and are connected with first springs in an embedded mode, the lower end cover and the upper end cover can be quickly connected, locked and disassembled through the locking screws, and the locking screws are extruded through the elastic force of the first springs to avoid loosening.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the end cap according to the present invention;
FIG. 3 is an enlarged view of FIG. 2A according to the present invention;
FIG. 4 is a schematic view of the oil seal and its overall connection structure of the present invention;
fig. 5 is a schematic diagram of the structure of the reinforcing strip of the present invention.
In the figure: 1. the lower end cover, 2, the upper end cover, 3, the oil filler point, 4, the fixed orifices, 5, the spacing ring, 6, the butt joint board, 7, the constant head tank, 8, the locking screw, 9, first spring, 10, the butt joint ring, 11, the oil blanket, 12, the second spring, 13, the reinforcing band, 14, locking groove, 15, self tapping screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
As shown in fig. 1 to 5, a high-speed shaft split end cover device of a coal mill speed reducer of a power plant comprises:
the end cover mechanism comprises a lower end cover 1 and an upper end cover 2, wherein the lower end cover 1 and the upper end cover 2 are of semicircular annular structures and are mutually butted to form an annular structure, and the annular structures jointly form a main body structure of the split end cover device;
the oil seal mechanism comprises an oil filling hole 3, a limiting ring 5 and an oil seal pad 11, the oil seal mechanism is arranged on the end cover mechanism, the limiting ring 5 is respectively fixed on the upper surfaces of the lower end cover 1 and the upper end cover 2 and combined to form a circular structure, the oil seal pad 11 for oil sealing is in limited butt joint in an annular groove in the process of the limiting ring 5, the oil filling hole 3 is arranged at the top of the oil filling hole 3 in a concave manner, and the oil filling hole 3 penetrates through the inner side and the outer side of the limiting ring 5;
the connecting and locking mechanism comprises a fixing hole 4, the connecting and locking mechanism is arranged on the end cover mechanism, the fixing hole 4 penetrates through the lower end cover 1 and the upper end cover 2 respectively and is arranged at an equal angle, and the lower end cover 1 and the upper end cover 2 penetrate through the fixing hole 4 through screws and are connected and locked with the speed reducer.
The embodiment of the utility model provides an in, oil blanket 11 wholly adopts polymer 683 material preparation to constitute ring shape structure, and the diameter of its central annular through-hole equals with the overall structure's of lower end cap 1, upper end cap 2 constitution central through-hole diameter, improves oil blanket 11's life.
The embodiment of the utility model provides an in, the bottom of oil blanket 11 is provided with butt joint ring 10, is provided with second spring 12 between butt joint ring 10 and the oil blanket 11, and the spacing butt joint of butt joint ring 10 makes oil blanket 11 can change self adjustment axle head seal along with the shafting through second spring 12 at the top of lower extreme cover 1, upper end cover 2.
Example two
As shown in fig. 1 to 5, a high-speed shaft split end cover device of a coal mill speed reducer of a power plant comprises:
the end cover mechanism comprises a lower end cover 1 and an upper end cover 2, wherein the lower end cover 1 and the upper end cover 2 are both in semicircular annular structures, are mutually butted to form an annular structure, and jointly form a main body structure of the split end cover device;
the oil seal mechanism comprises an oil filling hole 3, a limiting ring 5 and an oil seal pad 11, the oil seal mechanism is arranged on the end cover mechanism, the limiting ring 5 is respectively fixed on the upper surfaces of the lower end cover 1 and the upper end cover 2 and combined to form a circular structure, the oil seal pad 11 for oil sealing is in limited butt joint in an annular groove in the process of the limiting ring 5, the oil filling hole 3 is arranged at the top of the oil filling hole 3 in a concave manner, and the oil filling hole 3 penetrates through the inner side and the outer side of the limiting ring 5;
the connecting and locking mechanism comprises a fixing hole 4, the connecting and locking mechanism is arranged on the end cover mechanism, the fixing hole 4 penetrates through the lower end cover 1 and the upper end cover 2 respectively and is arranged at an equal angle, and the lower end cover 1 and the upper end cover 2 penetrate through the fixing hole 4 through screws and are connected and locked with the speed reducer.
The embodiment of the utility model provides an in, the both ends of lower end cover 1 are the protrusion formula and are fixed with butt-joint plate 6, and the both ends of upper end cover 2 are the indent formula and are provided with constant head tank 7 to there is one deck sealing rubber pad at butt-joint plate 6's surface cementing, and butt-joint 6 spacing butt joints in constant head tank 7, makes the staff can be with lower end cover 1, the quick spacing butt joint of upper end cover 2 when fixed with the end cover.
The embodiment of the utility model provides an in, the both ends of buttcover plate 6 are run through and are provided with the through-hole, and the both ends of lower end cover 1 are provided with the screw, and the internal screw thread of screw is connected with locking screw 8, and locking screw 8 runs through buttcover plate 6's through-hole and on it nested connection have a first spring 9, make lower end cover 1, upper end cover 2 can through locking screw 8 high-speed joint locking and split to elasticity extrusion locking screw 8 through a spring 9 avoids it not hard up.
In the embodiment of the present invention, the outer wall center of the lower end cap 1 and the upper end cap 2 is provided with a locking groove 14 in an inward concave manner, a reinforcing strip 13 is connected to the locking groove 14 in a limiting manner, and the reinforcing strip 13 is screwed and locked with the lower end cap 1 and the upper end cap 2 by a self-tapping screw 15, and the outside of the whole structure formed by the lower end cap 1 and the upper end cap 2 can be further reinforced by the reinforcing strip 13.
The working principle is as follows: when the end cover device is used, the lower end cover 1 and the upper end cover 2 are in limited butt joint with the positioning groove 7 through the butt joint plate 6, the lower end cover 1 and the upper end cover 2 are screwed and locked through the locking screw 8, then the integral structure formed by the oil seal pad 11 and the butt joint ring 10 is in butt joint with the top of the integral structure formed by the lower end cover 1 and the upper end cover 2 and is positioned in a notch on the inner side of the limiting ring 5, then the lower end cover 1 and the upper end cover 2 penetrate through the fixing hole 4 through screws to be connected and locked with the speed reducer, and finally the reinforcing belt 13 is in limited butt joint with the locking groove 14 of the lower end cover 1 and the upper end cover 2 and is locked through the self-tapping screw 15.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a power plant's coal pulverizer speed reducer high-speed shaft subdivision formula end cover device which characterized in that includes:
the end cover mechanism comprises a lower end cover (1) and an upper end cover (2), wherein the lower end cover (1) and the upper end cover (2) are of semicircular annular structures and are mutually butted to form an annular structure, and the main structure of the split end cover device is formed together;
the oil seal mechanism comprises an oil filling hole (3), a limiting ring (5) and an oil seal pad (11), the oil seal mechanism is arranged on the end cover mechanism, the limiting ring (5) is respectively fixed on the upper surfaces of the lower end cover (1) and the upper end cover (2) and combined to form a circular ring-shaped structure, the oil seal pad (11) for oil sealing is in limited butt joint in an annular groove in the process of the limiting ring (5), the oil filling hole (3) is arranged at the top of the oil filling hole (3) in an inwards concave manner, and the oil filling hole (3) penetrates through the inner side and the outer side of the limiting ring (5);
the connecting and locking mechanism comprises a fixing hole (4), the connecting and locking mechanism is arranged on the end cover mechanism, the fixing hole (4) is respectively arranged on the lower end cover (1) and the upper end cover (2) in a penetrating mode and is arranged at an equal angle, and the lower end cover (1) and the upper end cover (2) penetrate through the fixing hole (4) through screws and are connected and locked with the speed reducer.
2. The power plant coal mill speed reducer high-speed shaft split end cover device of claim 1, characterized in that: the whole oil seal pad (11) is made of a high polymer 683 material to form a circular ring-shaped structure, and the diameter of a central annular through hole is equal to that of a central through hole of the whole structure formed by the lower end cover (1) and the upper end cover (2).
3. The power plant coal mill speed reducer high-speed shaft split end cover device of claim 1, characterized in that: the bottom of the oil seal pad (11) is provided with a butt joint ring (10), a second spring (12) is arranged between the butt joint ring (10) and the oil seal pad (11), and the butt joint ring (10) is in limited butt joint with the tops of the lower end cover (1) and the upper end cover (2).
4. The power plant coal mill speed reducer high-speed shaft split end cover device as claimed in claim 1, characterized in that: the two ends of the lower end cover (1) are fixed with butt joint plates (6) in a protruding mode, the two ends of the upper end cover (2) are provided with positioning grooves (7) in an inwards concave mode, a layer of sealing rubber gasket is glued on the surfaces of the butt joint plates (6), and the butt joint plates (6) are in limiting butt joint in the positioning grooves (7).
5. The power plant coal pulverizer speed reducer high-speed shaft split end cover device of claim 4, characterized in that: the butt joint plate is characterized in that through holes are formed in two ends of the butt joint plate (6) in a penetrating mode, screw holes are formed in two ends of the lower end cover (1), locking screws (8) are connected in the screw holes in a screwed mode, and the locking screws (8) penetrate through the through holes of the butt joint plate (6) and are connected with first springs (9) in an embedded mode.
6. The power plant coal mill speed reducer high-speed shaft split end cover device of claim 1, characterized in that: the center of the outer walls of the lower end cover (1) and the upper end cover (2) is provided with a locking groove (14) in an inwards concave manner, a reinforcing strip (13) is in limited butt joint in the locking groove (14), and the reinforcing strip (13) is screwed and locked with the lower end cover (1) and the upper end cover (2) through self-tapping screws (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221780317.8U CN217736223U (en) | 2022-07-11 | 2022-07-11 | High-speed shaft split type end cover device of power plant coal mill speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221780317.8U CN217736223U (en) | 2022-07-11 | 2022-07-11 | High-speed shaft split type end cover device of power plant coal mill speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217736223U true CN217736223U (en) | 2022-11-04 |
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ID=83844498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221780317.8U Active CN217736223U (en) | 2022-07-11 | 2022-07-11 | High-speed shaft split type end cover device of power plant coal mill speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217736223U (en) |
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2022
- 2022-07-11 CN CN202221780317.8U patent/CN217736223U/en active Active
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