CN215378717U - Novel gap adjusting device for upper guide bearing bush of generator - Google Patents
Novel gap adjusting device for upper guide bearing bush of generator Download PDFInfo
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- CN215378717U CN215378717U CN202121597830.9U CN202121597830U CN215378717U CN 215378717 U CN215378717 U CN 215378717U CN 202121597830 U CN202121597830 U CN 202121597830U CN 215378717 U CN215378717 U CN 215378717U
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- adjusting sleeve
- nut
- upper guide
- wedge key
- guide bearing
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- 238000012360 testing method Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a novel device for adjusting the clearance of an upper guide bearing bush of a generator, which comprises a wedge key (1) and a support plate (2) positioned above the wedge key (1), wherein a screw rod (3) penetrating through the support plate (2) is connected to the wedge key (1) in a threaded manner, an adjusting sleeve (4) and a nut (5) are arranged outside the screw rod (3), the lower end of the adjusting sleeve (4) is positioned above the wedge key (1), the upper end of the adjusting sleeve (4) penetrates through the support plate (2), a nut (6) positioned above the support plate (2) is arranged outside the adjusting sleeve (4), a hand wheel (7) is fixedly connected to the upper part of the adjusting sleeve (4), and the hand wheel (7) is positioned between the nut (5) and the nut (6). The utility model has the characteristics of simple operation, time saving and labor saving.
Description
Technical Field
The utility model relates to an auxiliary tool for an upper guide shaft of a generator, in particular to a novel gap adjusting device for an upper guide bearing bush of a generator.
Background
The maintenance of the upper guide bearing is an important process for the maintenance of the generator, and when the generator is repaired and reinstalled, the gap between 8 upper guide shoes and the large shaft collar needs to be adjusted. The design installation clearance is 0.13mm to last guide shoe, is the structure of thrust piece, taper key, bearing frame behind the last guide shoe, and the taper key reciprocates and promotes the back-and-forth movement of last guide shoe, and the taper key inclination is 50: 1, after the wedge key is arranged at the bottom, the tile surface tightly holds the large shaft collar, the gap of the upper guide shoe is 0 at the moment, and the gap of the corresponding upper guide shoe is 0.13mm when the wedge key is increased by 6.5 mm.
The method for adjusting the gap of the guide bearing bush in the prior art comprises the steps that a worker firstly puts a wedge key into a key groove between a thrust block at the back of the bush and a bearing seat and presses the wedge key to the bottom by hand, a depth gauge is used for measuring and recording the insertion depth value of the wedge key, the size of an upper guide adjusting sleeve is calculated by subtracting 6.5mm from the value, an adjusting sleeve is processed by a seamless steel pipe according to the corresponding size and is arranged at the upper part of the wedge key, the wedge key and the adjusting sleeve are pulled and fixed, the wedge key is lifted by 6.5mm, and the gap adjustment is completed.
However, the method is time-consuming and labor-consuming, the size of the adjusting sleeve needs to be measured and calculated during maintenance, then external machining is entrusted, the size of each adjusting sleeve is inconsistent, re-measurement and machining are needed during each major repair, the machining period needs to be at least three days, the construction period of the later period of unit maintenance is tight, and the adjusting mode is complex to operate and consumes long time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel device for adjusting the gap between upper guide bearing bushes of a generator. The utility model has the characteristics of simple operation, time saving and labor saving.
The technical scheme of the utility model is as follows: the utility model provides a novel lead axle bush clearance adjustment on generator, includes the wedge key and is located the backup pad of wedge key top, and threaded connection has the lead screw that passes the backup pad on the wedge key, and the outside of lead screw is equipped with adjustment cover and nut, and the lower extreme of adjustment cover is located the wedge key top, and the backup pad is passed to the upper end of adjustment cover, and the outside of adjustment cover is equipped with the nut that is located the backup pad top, and the upper portion fixedly connected with hand wheel of adjustment cover, hand wheel are located between nut and the nut.
In the novel device for adjusting the gap between the upper guide bearing bush of the generator, a dial indicator is arranged on the hand wheel, and a test head of the dial indicator is in contact with the upper end face of the hand wheel.
In the novel gap adjusting device for the upper guide bearing bush of the generator, the outer part of the adjusting sleeve is provided with threads, the nut is in threaded connection with the adjusting sleeve, and the nut is in threaded connection with the screw rod.
In the novel gap adjusting device for the upper guide bearing bush of the generator, the support plate is provided with the threaded hole, and the adjusting sleeve penetrates through the threaded hole to be in threaded connection with the support plate.
In the novel gap adjusting device for the upper guide bearing bush of the generator, a through hole for the lead screw to pass through is formed in the adjusting sleeve.
Compared with the prior art, the utility model replaces the original fixed adjusting sleeve with the adjusting sleeve with threads, realizes the up-and-down adjustment work of the wedge key, does not need to carry out the work of depth measurement-processing of the adjusting sleeve when the upper guide bearing is overhauled each time, and greatly shortens the overhauling time of the upper guide bearing. The dial indicator is erected on the upper end face of the adjusting sleeve hand wheel, the adjusting precision of 0.01mm can be realized, the maintenance is convenient, and the time and the labor are saved.
The device can be used for the gap adjustment work of other heavy-duty screw or wedge block support type upper guide bearings, effectively solves the problems of long gap adjustment period of the upper guide shoe and one-time use of the adjustment sleeve, and has the advantages of reusability, long service life and wide universality.
Therefore, the utility model has the characteristics of simple operation, time saving and labor saving.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the adjustment sleeve.
The labels in the figures are: 1. a wedge key; 2. a support plate; 3. a screw rod; 4. an adjusting sleeve; 41. a through hole; 5. a nut; 6. a nut; 7. a hand wheel; 8. and (4) a dial indicator.
Detailed Description
The utility model is further illustrated by the following figures and examples, which are not to be construed as limiting the utility model.
Examples are given.
As shown in fig. 1-2, a novel device for adjusting a gap between upper guide bearing bushes of a generator comprises a wedge key 1 and a support plate 2 located above the wedge key 1, wherein a lead screw 3 penetrating through the support plate 2 is connected to the wedge key 1 through a thread, an adjusting sleeve 4 and a nut 5 are arranged outside the lead screw 3, the lower end of the adjusting sleeve 4 is located above the wedge key 1, the support plate 2 is penetrated through the upper end of the adjusting sleeve 4, a nut 6 located above the support plate 2 is arranged outside the adjusting sleeve 4, a hand wheel 7 is fixedly connected to the upper portion of the adjusting sleeve 4, and the hand wheel 7 is located between the nut 5 and the nut 6. The hand wheel 7 is provided with a dial indicator 8, and a testing head of the dial indicator 8 is in contact with the upper end face of the hand wheel 7. The adjusting sleeve 4 is provided with threads on the outside, the nut 6 is in threaded connection with the adjusting sleeve 4, the nut 5 is in threaded connection with the screw rod 3, and the adjusting sleeve 4 is provided with a through hole 41 for the screw rod 3 to pass through inside. The supporting plate 2 is provided with a threaded hole, and the adjusting sleeve 4 penetrates through the threaded hole to be in threaded connection with the supporting plate 2. The height of the adjusting sleeve 4 on the supporting plate 2 can be freely adjusted through the light-turning hand wheel 7, so that the height of the wedge key 1 can be adjusted, the operation is simple and convenient, the rising height of the adjusting sleeve 4 is monitored through the dial indicator 8, and the adjusting precision of 0.01mm is realized.
The working principle is as follows: when adjusting the gap of the upper guide shoe of the generator, firstly screwing the screw rod 3 into the wedge key 1 and placing the wedge key 1 at the bottom of the key groove in the bearing seat, screwing the screw cap 6 into the adjusting sleeve 4 and placing the adjusting sleeve above the supporting plate 2, clockwise rotating the hand wheel 7 on the adjusting sleeve 4 to enable the lower end part of the adjusting sleeve 4 to be screwed to the upper surface of the wedge key 1 and tightly pressed, then erecting the dial indicator 8 on the upper end surface of the hand wheel 7 and adjusting the indicator of the dial indicator 8 to zero, monitoring the indicator of the dial indicator 8, and then anticlockwise rotating the hand wheel 7 to enable the adjusting sleeve 4 to be separated from the wedge key 1 and rise to the position of 6.5 mm;
the nut 6 is rotated to tightly press the support plate 2, and the positions of the nut 6 and the adjusting sleeve 4 are locked and fixed;
and screwing the nut 5 onto the screw rod 3 to the pressing hand wheel 7, and continuously rotating the nut 5 to enable the wedge key 1 to rise to be pressed with the lower end part of the adjusting sleeve 4. At the moment, the rising height of the wedge key 1 is 6.5mm, which corresponds to the upper guide shoe gap of 0.13mm, the upper guide shoe gap adjustment is completed, and then a back-tightening nut is screwed in the upper part of the nut 5 for back tightening.
Claims (5)
1. The utility model provides a novel lead axle bush clearance adjustment on generator which characterized in that: including wedge key (1) and backup pad (2) that are located wedge key (1) top, threaded connection has lead screw (3) that pass backup pad (2) on wedge key (1), the outside of lead screw (3) is equipped with adjusting sleeve (4) and nut (5), the lower extreme of adjusting sleeve (4) is located wedge key (1) top, backup pad (2) are passed to the upper end of adjusting sleeve (4), the outside of adjusting sleeve (4) is equipped with nut (6) that are located backup pad (2) top, the upper portion fixedly connected with hand wheel (7) of adjusting sleeve (4), hand wheel (7) are located between nut (5) and nut (6).
2. The novel generator upper guide bearing bush clearance adjusting device is characterized in that: the hand wheel (7) is provided with a dial indicator (8), and a testing head of the dial indicator (8) is in contact with the upper end face of the hand wheel (7).
3. The novel generator upper guide bearing bush clearance adjusting device is characterized in that: the outer portion of the adjusting sleeve (4) is provided with threads, the screw cap (6) is in threaded connection with the adjusting sleeve (4), and the screw cap (5) is in threaded connection with the screw rod (3).
4. The novel generator upper guide bearing bush clearance adjusting device is characterized in that: the supporting plate (2) is provided with a threaded hole, and the adjusting sleeve (4) penetrates through the threaded hole to be in threaded connection with the supporting plate (2).
5. The novel generator upper guide bearing bush clearance adjusting device is characterized in that: the adjusting sleeve (4) is internally provided with a through hole (41) for the screw rod (3) to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121597830.9U CN215378717U (en) | 2021-07-14 | 2021-07-14 | Novel gap adjusting device for upper guide bearing bush of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121597830.9U CN215378717U (en) | 2021-07-14 | 2021-07-14 | Novel gap adjusting device for upper guide bearing bush of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215378717U true CN215378717U (en) | 2021-12-31 |
Family
ID=79609123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121597830.9U Active CN215378717U (en) | 2021-07-14 | 2021-07-14 | Novel gap adjusting device for upper guide bearing bush of generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215378717U (en) |
-
2021
- 2021-07-14 CN CN202121597830.9U patent/CN215378717U/en active Active
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