CN113788398A - Vertical hot jacket major diameter biserial self-aligning bearing frock on motor shaft - Google Patents
Vertical hot jacket major diameter biserial self-aligning bearing frock on motor shaft Download PDFInfo
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- CN113788398A CN113788398A CN202111063619.3A CN202111063619A CN113788398A CN 113788398 A CN113788398 A CN 113788398A CN 202111063619 A CN202111063619 A CN 202111063619A CN 113788398 A CN113788398 A CN 113788398A
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- aligning bearing
- row self
- diameter double
- bearing
- outer ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
Abstract
The invention discloses a large-diameter double-row self-aligning bearing tool with a vertical hot sleeve on a motor rotating shaft, which solves the problem of reliably hot sleeve the large-diameter double-row self-aligning bearing on the motor rotating shaft. The bearing is vertically sleeved on the rotating shaft in a hot mode, namely the rotating shaft of the motor is vertically placed, the large-diameter double-row self-aligning bearing is sleeved on the rotating shaft of the motor from top to bottom by a hoisting method, and the bearing lifting appliance is clamped on the bearing outer ring, so that the center of the invention is to keep the central axis of the bearing inner ring and the central axis of the bearing outer ring coincident in the hoisting process; the large-diameter double-row self-aligning bearing is characterized in that an annular hoop is adopted and clamped with the outer ring of the large-diameter double-row self-aligning bearing, three lifting lugs and three pin shafts are respectively arranged on the outer side surface of the annular hoop at equal intervals in radian, a rotatable pressing plate is arranged at the upper end of each pin shaft, a rotatable supporting plate is arranged at the lower end of each pin shaft, the plane where the inner ring of the bearing and the plane where the outer ring of the bearing are located are controlled to be located on the same plane through the pressing plate and the supporting plate, and the bearing is sleeved on a motor rotating shaft through hoisting.
Description
Technical Field
The invention relates to a tool for hot-sleeving a bearing on a motor rotating shaft, in particular to a tool for hot-sleeving a large-diameter double-row self-aligning bearing on the motor rotating shaft and a hot-sleeving method thereof.
Background
The bearing assembly on the rotating shaft of the wind driven generator rotor is generally completed by two steps, wherein the first step is to thermally sleeve the bearing on the rotating shaft of the motor; the second step is that the bearing seat is firstly installed in the central hole of the motor end cover, and then the bearing seat with the motor end cover is sleeved on the motor rotating shaft, so that the bearing seat is matched with the bearing on the rotating shaft; the prior process for sleeving the bearing on the rotating shaft of the motor in a hot manner comprises the following steps: heating the bearing by using an electromagnetic inductor to expand the inner ring of the bearing; horizontally placing a motor rotating shaft, sleeving the heated bearing on the rotating shaft, and connecting the bearing on the rotating shaft in an interference fit manner after the bearing is cooled; the large-diameter double-row self-aligning bearing is a bearing with an included angle between the central axis of the outer ring of the bearing and the central axis of the inner ring of the bearing capable of being freely adjusted, and the bearing can be used for compensating bending of a shaft and misalignment of a matching surface, namely, the inner ring of the bearing can swing relative to the outer ring of the bearing; when assembling such a bearing to a motor shaft, the following is liable to occur: (1) when the bearing is assembled, the inner ring of the bearing is sleeved on the rotating shaft generally in a mode of clamping the outer ring of the bearing, for the double-row self-aligning bearing, if the central axis of the inner ring of the bearing is not coincident with the central axis of the outer ring of the bearing, the included angle between the central axis of the inner ring of the bearing and the central axis of the outer ring of the bearing is large, the inner ring of the bearing is easy to collide with the rotating shaft during the sleeving of the bearing, the sleeving of the bearing cannot be completed by a light person, and the inner ring of the bearing is damaged by a heavy person; (2) when the included angle between the central axis of the bearing inner ring and the central axis of the bearing outer ring is kept in a small range, the bearing and the rotating shaft can be sleeved, but the phenomenon that the bearing is not sleeved in place can occur, the phenomenon that the assembly process of other subsequent components cannot be normally carried out can be caused, and the sleeved bearing needs to be disassembled and subjected to re-hot sleeve treatment; (3) for a large-diameter double-row self-aligning bearing, the outer diameter of the bearing is more than 1 meter, the weight of the bearing is heavy, and the process of horizontally connecting the bearing on a rotating shaft in a penetrating manner by adopting the traditional bearing is basically infeasible.
When the large-diameter double-row self-aligning bearing is applied to a rotor rotating shaft of a wind driven generator, the size of a motor end cover of the wind driven generator is large due to the large volume of the wind driven generator, and a traditional horizontal end cover assembling method of assembling the bearing and the bearing seat after assembling the bearing seat into a center hole of the motor end cover is adopted, so that the method is basically infeasible; if a vertical assembly method is adopted, the problem that how to overcome the defect that the inner ring of the double-row self-aligning bearing is easy to swing relative to the outer ring of the bearing and how to keep the central axis of the inner ring of the double-row self-aligning bearing to be coincident with the central axis of the outer ring is solved on site.
Disclosure of Invention
The invention provides a tool and a method for a vertical hot sleeve large-diameter double-row self-aligning bearing on a motor rotating shaft, and solves the technical problem of reliably hot sleeve the large-diameter double-row self-aligning bearing on the motor rotating shaft.
The invention solves the technical problems by the following technical scheme:
the general concept of the invention is: the method changes the traditional horizontal method for sleeving the bearing on the motor rotating shaft in a hot manner, adopts the vertical method for sleeving the bearing on the rotating shaft, namely the motor rotating shaft is vertically placed, and adopts a hoisting method for sleeving the large-diameter double-row self-aligning bearing on the motor rotating shaft from top to bottom; an annular hoop is adopted and clamped with an outer ring of the large-diameter double-row self-aligning bearing, three lifting lugs and three pin shafts are respectively arranged on the outer side surface of the annular hoop at equal intervals in radian, a rotatable pressing plate is arranged at the upper end of each pin shaft, a rotatable supporting plate is arranged at the lower end of each pin shaft, and the plane where the inner ring of the bearing and the plane where the outer ring of the bearing are located are controlled to be in the same plane through the pressing plate and the supporting plate, namely, the central axis of the inner ring of the large-diameter double-row self-aligning bearing in the annular hoop is coincided with the central axis of the outer ring in a mode of pressing up and supporting down; the large-diameter double-row self-aligning bearing and the clamping hoop are heated together and are sleeved on the motor rotating shaft through hoisting.
A vertical hot jacket large-diameter double-row self-aligning bearing tool on a motor rotating shaft comprises the motor rotating shaft, a large-diameter double-row self-aligning bearing, a left semi-annular hoop and a right semi-annular hoop which are vertically positioned, wherein a crown block lifting hook is arranged right above the motor rotating shaft and is connected with a lifting disc through a lifting rope in a lifting mode, the lifting disc is arranged along the horizontal direction, and a first lifting ring, a second lifting ring and a third lifting ring are arranged on one concentric circumference on the lower bottom surface of the lifting disc at equal intervals in a radian mode; after the left semi-annular hoop and the right semi-annular hoop are in butt joint, the left semi-annular hoop and the right semi-annular hoop are clamped on an outer side vertical surface of an outer ring of the large-diameter double-row self-aligning bearing, a front connecting bolt is arranged between the end part of a front side bayonet of the left semi-annular hoop and the end part of a front side bayonet of the right semi-annular hoop, and a rear connecting bolt is arranged between the end part of a rear side bayonet of the left semi-annular hoop and the end part of a rear side bayonet of the right semi-annular hoop; a first lifting lug, a first pin shaft and a second lifting lug are fixedly arranged on the outer side vertical surface of the left semi-annular hoop respectively, and a second pin shaft, a third lifting lug and a third pin shaft are fixedly arranged on the outer side vertical surface of the right semi-annular hoop respectively; a first turn buckle is connected between the first lifting lug and the first lifting ring, a second turn buckle is connected between the second lifting lug and the second lifting ring, and a third turn buckle is connected between the third lifting lug and the third lifting ring; a first swing arm supporting plate is movably arranged at the lower end of the first pin shaft, and the first swing arm supporting plate is arranged between the lower bottom surface of the outer ring of the large-diameter double-row self-aligning bearing and the lower bottom surface of the inner ring of the large-diameter double-row self-aligning bearing; a second swing arm supporting plate is movably arranged at the lower end of the second pin shaft and arranged between the lower bottom surface of the outer ring of the large-diameter double-row self-aligning bearing and the lower bottom surface of the inner ring of the large-diameter double-row self-aligning bearing; and a third swing arm supporting plate is movably arranged at the lower end of the third pin shaft and is arranged between the lower bottom surface of the outer ring of the large-diameter double-row self-aligning bearing and the lower bottom surface of the inner ring of the large-diameter double-row self-aligning bearing.
A first swing arm pressing plate is movably arranged at the upper end of the first pin shaft and is arranged between the upper top surface of the outer ring of the large-diameter double-row self-aligning bearing and the upper top surface of the inner ring of the large-diameter double-row self-aligning bearing; a second swing arm pressing plate is movably arranged at the upper end of the second pin shaft and is arranged between the upper top surface of the outer ring of the large-diameter double-row self-aligning bearing and the upper top surface of the inner ring of the large-diameter double-row self-aligning bearing; a third swing arm pressing plate is movably arranged at the upper end of the third pin shaft and is arranged between the upper top surface of the outer ring of the large-diameter double-row self-aligning bearing and the upper top surface of the inner ring of the large-diameter double-row self-aligning bearing; a left semi-annular elastic cushion is arranged between the left semi-annular hoop and the outer ring of the large-diameter double-row self-aligning bearing, and a right semi-annular elastic cushion is arranged between the right semi-annular hoop and the outer ring of the large-diameter double-row self-aligning bearing.
Left semi-annular staple bolt, right semi-annular staple bolt and major diameter biserial self-aligning bearing that the joint is in the same place preheat through following step before the hoist and mount:
firstly, butt-jointing a left semi-annular hoop and a right semi-annular hoop, clamping the left semi-annular hoop and the right semi-annular hoop on the outer side surface of an outer ring of the large-diameter double-row self-aligning bearing, and respectively connecting a front connecting bolt and a rear connecting bolt between the end parts of the two hoops; a left semi-annular elastic cushion is arranged between the left semi-annular hoop and the outer ring of the large-diameter double-row self-aligning bearing, and a right semi-annular elastic cushion is arranged between the right semi-annular hoop and the outer ring of the large-diameter double-row self-aligning bearing; the heat-resistant temperature of the left semi-annular elastic cushion and the right semi-annular elastic cushion is 180 ℃;
secondly, respectively rotating the first swing arm supporting plate, the second swing arm supporting plate and the third swing arm supporting plate to a position between the lower bottom surface of the outer ring of the large-diameter double-row self-aligning bearing and the lower bottom surface of the inner ring of the large-diameter double-row self-aligning bearing, so that the central axis of the outer ring of the large-diameter double-row self-aligning bearing is superposed with the central axis of the inner ring of the large-diameter double-row self-aligning bearing;
and thirdly, placing the tool and the large-diameter double-row self-aligning bearing assembled in the second step into an oven to be heated to 120 ℃.
The invention adopts a method of putting the bearing and the clamping tool into the oven for heating, so that the bearing is heated uniformly; in the process of hoisting the bearing to the rotating shaft of the motor, the vertical sleeving method is adopted, the defect that the horizontal sleeving of a large-size bearing is not easy to operate is overcome, the central axis of the inner ring and the central axis of the outer ring of the bearing are always overlapped by limiting of the supporting plate on the hoop, so that the assembly of the double-row self-aligning bearing in place is realized, the tool structure is simple, and the field operation is easy.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the left half-ring hoop 1 and the right half-ring hoop 2 of the present invention;
FIG. 3 is a schematic structural diagram of the large-diameter double-row self-aligning bearing of the present invention after being clamped by two hoops.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a vertical hot jacket large-diameter double-row self-aligning bearing tool on a motor rotating shaft comprises a motor rotating shaft 28, a large-diameter double-row self-aligning bearing, a left semi-annular hoop 1 and a right semi-annular hoop 2 which are vertically positioned, wherein a crown block lifting hook 26 is arranged right above the motor rotating shaft 28, the crown block lifting hook 26 is connected with a lifting disc 25 in a hanging mode through a lifting rope 27, the lifting disc 25 is arranged along the horizontal direction, and a first hanging ring 20, a second hanging ring 22 and a third hanging ring 24 are arranged on a concentric circumference on the lower bottom surface of the lifting disc 25 at equal intervals in a radian mode; after the left semi-annular hoop 1 and the right semi-annular hoop 2 are butted, the left semi-annular hoop 1 and the right semi-annular hoop 2 are clamped on the outer side vertical surface of an outer ring 14 of the large-diameter double-row self-aligning bearing, a front connecting bolt 3 is arranged between the end part of a front side bayonet of the left semi-annular hoop 1 and the end part of a front side bayonet of the right semi-annular hoop 2, and a rear connecting bolt 4 is arranged between the end part of a rear side bayonet of the left semi-annular hoop 1 and the end part of a rear side bayonet of the right semi-annular hoop 2; a first lifting lug 16, a first pin shaft 5 and a second lifting lug 17 are fixedly arranged on the outer side vertical surface of the left semi-annular hoop 1 respectively, and a second pin shaft 8, a third lifting lug 18 and a third pin shaft 11 are fixedly arranged on the outer side vertical surface of the right semi-annular hoop 2 respectively; a first turn buckle 19 is connected between the first lifting lug 16 and the first lifting ring 20, a second turn buckle 21 is connected between the second lifting lug 17 and the second lifting ring 22, and a third turn buckle 23 is connected between the third lifting lug 18 and the third lifting ring 24; a first swing arm supporting plate 7 is movably arranged at the lower end of the first pin shaft 5, and the first swing arm supporting plate 7 is arranged between the lower bottom surface of an outer ring 14 of the large-diameter double-row self-aligning bearing and the lower bottom surface of an inner ring 15 of the large-diameter double-row self-aligning bearing; a second swing arm supporting plate 10 is movably arranged at the lower end of the second pin shaft 8, and the second swing arm supporting plate 10 is arranged between the lower bottom surface of an outer ring 14 of the large-diameter double-row self-aligning bearing and the lower bottom surface of an inner ring 15 of the large-diameter double-row self-aligning bearing; a third swing arm supporting plate 13 is movably arranged at the lower end of the third pin shaft 11, and the third swing arm supporting plate 13 is arranged between the lower bottom surface of an outer ring 14 of the large-diameter double-row self-aligning bearing and the lower bottom surface of an inner ring 15 of the large-diameter double-row self-aligning bearing.
A first swing arm pressing plate 6 is movably arranged at the upper end of the first pin shaft 5, and the first swing arm pressing plate 6 is arranged between the upper top surface of an outer ring 14 of the large-diameter double-row self-aligning bearing and the upper top surface of an inner ring 15 of the large-diameter double-row self-aligning bearing; a second swing arm pressing plate 9 is movably arranged at the upper end of the second pin shaft 8, and the second swing arm pressing plate 9 is arranged between the upper top surface of an outer ring 14 of the large-diameter double-row self-aligning bearing and the upper top surface of an inner ring 15 of the large-diameter double-row self-aligning bearing; a third swing arm pressing plate 12 is movably arranged at the upper end of the third pin shaft 11, and the third swing arm pressing plate 12 is arranged between the upper top surface of an outer ring 14 of the large-diameter double-row self-aligning bearing and the upper top surface of an inner ring 15 of the large-diameter double-row self-aligning bearing; a left semi-annular elastic cushion 29 is arranged between the left semi-annular hoop 1 and the outer ring 14 of the large-diameter double-row self-aligning bearing, and a right semi-annular elastic cushion 30 is arranged between the right semi-annular hoop 2 and the outer ring 14 of the large-diameter double-row self-aligning bearing.
Left semi-annular staple bolt 1, right semi-annular staple bolt 2 and major diameter biserial self-aligning bearing that the joint is in the same place preheat through following step before the hoist and mount:
firstly, a left semi-annular hoop 1 and a right semi-annular hoop 2 are butted and then clamped on the outer side surface of an outer ring 14 of a large-diameter double-row self-aligning bearing, and a front connecting bolt 3 and a rear connecting bolt 4 are respectively connected between the end parts of the two hoops; a left semi-annular elastic cushion 29 is arranged between the left semi-annular hoop 1 and the outer ring 14 of the large-diameter double-row self-aligning bearing, and a right semi-annular elastic cushion 30 is arranged between the right semi-annular hoop 2 and the outer ring 14 of the large-diameter double-row self-aligning bearing; the heat-resistant temperature of the left semi-annular elastic cushion 29 and the right semi-annular elastic cushion 30 is 180 degrees centigrade;
secondly, respectively rotating the first swing arm supporting plate 7, the second swing arm supporting plate 10 and the third swing arm supporting plate 13 to a position between the lower bottom surface of the outer ring 14 of the large-diameter double-row self-aligning bearing and the lower bottom surface of the inner ring 15 of the large-diameter double-row self-aligning bearing, so that the central axis of the outer ring 14 of the large-diameter double-row self-aligning bearing is superposed with the central axis of the inner ring 15 of the large-diameter double-row self-aligning bearing;
and thirdly, placing the tool and the large-diameter double-row self-aligning bearing assembled in the second step into an oven to be heated to 120 ℃.
After the large-diameter double-row self-aligning bearing and the hoop hoisting tool are assembled together, the central axis of the inner ring of the bearing is superposed with the central axis of the outer ring through the supporting plate and the pressing plate on the tool, and preheating is carried out in the state; after preheating, hoisting, leveling the bearing by using a turnbuckle, enabling the central axis of the bearing to coincide with the central axis of the rotating shaft, rotating the three swing arm supporting plates to enable the three swing arm supporting plates to leave the lower bottom surface of the bearing when the bearing falls onto the upper part of a bearing positioning step on the rotating shaft, then continuously descending the bearing to enable the bearing to be accurately positioned on the bearing positioning step, and in the descending process, three swing arm pressing plates are still arranged between the upper top surface of the inner ring and the upper top surface of the outer ring of the bearing, so that the coincidence of the central axis of the inner ring and the central axis of the outer ring is ensured; the tool ensures that the central axis of the inner ring and the central axis of the outer ring coincide in the whole process from preheating to hot sleeving of the bearing, and lays a foundation for sleeving the bearing on the rotating shaft.
Claims (3)
1. A vertical hot jacket large-diameter double-row self-aligning bearing tool on a motor rotating shaft comprises a motor rotating shaft (28) which is vertically positioned, a large-diameter double-row self-aligning bearing, a left semi-annular hoop (1) and a right semi-annular hoop (2), wherein a crown block lifting hook (26) is arranged right above the motor rotating shaft (28), the crown block lifting hook (26) is connected with a lifting disc (25) in a hanging mode through a lifting rope (27), and the lifting disc (25) is arranged along the horizontal direction, and the tool is characterized in that a first lifting ring (20), a second lifting ring (22) and a third lifting ring (24) are arranged on a concentric circumference on the lower bottom surface of the lifting disc (25) at equal intervals in radian; after the left semi-annular hoop (1) and the right semi-annular hoop (2) are butted, the left semi-annular hoop and the right semi-annular hoop are clamped on the outer side vertical surface of an outer ring (14) of the large-diameter double-row self-aligning bearing, a front connecting bolt (3) is arranged between the end part of a front side bayonet of the left semi-annular hoop (1) and the end part of the front side bayonet of the right semi-annular hoop (2), and a rear connecting bolt (4) is arranged between the end part of the rear side bayonet of the left semi-annular hoop (1) and the end part of the rear side bayonet of the right semi-annular hoop (2); a first lifting lug (16), a first pin shaft (5) and a second lifting lug (17) are fixedly arranged on the outer side vertical surface of the left semi-annular hoop (1) respectively, and a second pin shaft (8), a third lifting lug (18) and a third pin shaft (11) are fixedly arranged on the outer side vertical surface of the right semi-annular hoop (2) respectively; a first turn buckle (19) is connected between the first lifting lug (16) and the first lifting ring (20), a second turn buckle (21) is connected between the second lifting lug (17) and the second lifting ring (22), and a third turn buckle (23) is connected between the third lifting lug (18) and the third lifting ring (24); a first swing arm supporting plate (7) is movably arranged at the lower end of the first pin shaft (5), and the first swing arm supporting plate (7) is arranged between the lower bottom surface of an outer ring (14) of the large-diameter double-row self-aligning bearing and the lower bottom surface of an inner ring (15) of the large-diameter double-row self-aligning bearing; a second swing arm supporting plate (10) is movably arranged at the lower end of the second pin shaft (8), and the second swing arm supporting plate (10) is arranged between the lower bottom surface of an outer ring (14) of the large-diameter double-row self-aligning bearing and the lower bottom surface of an inner ring (15) of the large-diameter double-row self-aligning bearing; a third swing arm supporting plate (13) is movably arranged at the lower end of the third pin shaft (11), and the third swing arm supporting plate (13) is arranged between the lower bottom surface of an outer ring (14) of the large-diameter double-row self-aligning bearing and the lower bottom surface of an inner ring (15) of the large-diameter double-row self-aligning bearing.
2. The tool for the vertical hot jacket large-diameter double-row self-aligning bearing on the motor rotating shaft according to claim 1, characterized in that a first swing arm pressing plate (6) is movably arranged at the upper end of a first pin shaft (5), and the first swing arm pressing plate (6) is arranged between the upper top surface of an outer ring (14) of the large-diameter double-row self-aligning bearing and the upper top surface of an inner ring (15) of the large-diameter double-row self-aligning bearing; a second swing arm pressing plate (9) is movably arranged at the upper end of the second pin shaft (8), and the second swing arm pressing plate (9) is arranged between the upper top surface of an outer ring (14) of the large-diameter double-row self-aligning bearing and the upper top surface of an inner ring (15) of the large-diameter double-row self-aligning bearing; a third swing arm pressing plate (12) is movably arranged at the upper end of the third pin shaft (11), and the third swing arm pressing plate (12) is arranged between the upper top surface of an outer ring (14) of the large-diameter double-row self-aligning bearing and the upper top surface of an inner ring (15) of the large-diameter double-row self-aligning bearing; a left semi-annular elastic cushion (29) is arranged between the left semi-annular hoop (1) and the outer ring (14) of the large-diameter double-row self-aligning bearing, and a right semi-annular elastic cushion (30) is arranged between the right semi-annular hoop (2) and the outer ring (14) of the large-diameter double-row self-aligning bearing.
3. The tool for the vertical hot jacket large-diameter double-row self-aligning bearing on the motor rotating shaft according to claim 2, wherein the left half-ring hoop (1), the right half-ring hoop (2) and the large-diameter double-row self-aligning bearing are clamped together and preheated before hoisting through the following steps:
firstly, a left semi-annular hoop (1) and a right semi-annular hoop (2) are butted and then clamped on the outer side surface of an outer ring (14) of a large-diameter double-row self-aligning bearing, and a front connecting bolt (3) and a rear connecting bolt (4) are respectively connected between the end parts of the two hoops; a left semi-annular elastic pad (29) is arranged between the left semi-annular hoop (1) and the outer ring (14) of the large-diameter double-row self-aligning bearing, and a right semi-annular elastic pad (30) is arranged between the right semi-annular hoop (2) and the outer ring (14) of the large-diameter double-row self-aligning bearing; the heat-resisting temperature of the left semi-annular elastic cushion (29) and the right semi-annular elastic cushion (30) is 180 ℃;
secondly, respectively rotating a first swing arm supporting plate (7), a second swing arm supporting plate (10) and a third swing arm supporting plate (13) to a position between the lower bottom surface of an outer ring (14) of the large-diameter double-row self-aligning bearing and the lower bottom surface of an inner ring (15) of the large-diameter double-row self-aligning bearing, so that the central axis of the outer ring (14) of the large-diameter double-row self-aligning bearing is superposed with the central axis of the inner ring (15) of the large-diameter double-row self-aligning bearing;
and thirdly, placing the tool and the large-diameter double-row self-aligning bearing assembled in the second step into an oven to be heated to 120 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111063619.3A CN113788398A (en) | 2021-09-10 | 2021-09-10 | Vertical hot jacket major diameter biserial self-aligning bearing frock on motor shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111063619.3A CN113788398A (en) | 2021-09-10 | 2021-09-10 | Vertical hot jacket major diameter biserial self-aligning bearing frock on motor shaft |
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| Publication Number | Publication Date |
|---|---|
| CN113788398A true CN113788398A (en) | 2021-12-14 |
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|---|---|---|---|
| CN202111063619.3A Pending CN113788398A (en) | 2021-09-10 | 2021-09-10 | Vertical hot jacket major diameter biserial self-aligning bearing frock on motor shaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023217097A1 (en) * | 2022-05-09 | 2023-11-16 | 中建五洲工程装备有限公司 | Rolling ring shrink-fitting tool for rotary apparatus |
-
2021
- 2021-09-10 CN CN202111063619.3A patent/CN113788398A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023217097A1 (en) * | 2022-05-09 | 2023-11-16 | 中建五洲工程装备有限公司 | Rolling ring shrink-fitting tool for rotary apparatus |
| US11926004B1 (en) | 2022-05-09 | 2024-03-12 | Zhongjian Wuzhou Engineering Equipment Co., Ltd | Rolling ring shrink fitting tool for rotary equipment |
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