CN214308550U - Circle measuring frame for hydraulic generator rotor - Google Patents
Circle measuring frame for hydraulic generator rotor Download PDFInfo
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- CN214308550U CN214308550U CN202120625872.2U CN202120625872U CN214308550U CN 214308550 U CN214308550 U CN 214308550U CN 202120625872 U CN202120625872 U CN 202120625872U CN 214308550 U CN214308550 U CN 214308550U
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Abstract
The utility model belongs to the technical field of equipment for hydraulic generator rotor assembly specifically is a hydraulic generator rotor is with surveying circle frame, including spindle connecting mechanism, horizontal support frame and counter weight frame set up the both sides at spindle connecting mechanism respectively, spindle connecting mechanism includes the rotary drum structure, the upper end and the lower extreme of rotary drum structure have all set firmly side direction bearing structure, spindle connecting mechanism is still including the inboard and the coaxial position sleeve that sets up that is located the rotary drum structure, the rotary drum structure passes through side direction bearing structure and position sleeve normal running fit, the upper end and the lower extreme of position sleeve all are connected with at least three set screw, set screw distributes along the circumference of position sleeve, set screw is along the radial and position sleeve threaded connection of position sleeve. The problem of among the prior art generator rotor receive the influence of the last wire casing of rotor spindle easily and lead to the degree of accuracy not high when surveying the circle operation is solved to this scheme.
Description
Technical Field
The utility model belongs to the technical field of equipment for the assembly of hydraulic generator rotor, specifically be a hydraulic generator rotor is with surveying circle frame.
Background
When the rotor of the hydraulic generator is assembled, the roundness of the outer circle of the rotor needs to be measured, so that the rotor is ensured to meet the design requirement. The existing measurement is realized by a circle measuring frame, the circle measuring frame comprises a main shaft connecting mechanism, a horizontal supporting frame, a balance weight frame and the like, the horizontal supporting frame and the balance weight frame are respectively arranged at two sides of the main shaft connecting mechanism, the main shaft connecting mechanism comprises an upper positioning ring, a lower positioning ring, an upper lateral bearing, a lower lateral bearing and the like, the upper positioning ring and the lower positioning ring are fixedly connected through a vertical rib to form a rotary drum structure, the rotary drum structure is sleeved on a rotor main shaft and supported on a rotor bracket, the upper lateral bearing is arranged on the upper positioning ring, the lower lateral bearing is arranged on the lower positioning ring and is contacted with the rotor main shaft through the upper lateral bearing and the lower lateral bearing, thereby realizing that the main shaft connecting mechanism is connected on the rotor main shaft and rotates around the rotor main shaft through the main shaft connecting mechanism, therefore, the horizontal support frame connected to the main shaft connecting mechanism is driven to rotate around the rotor main shaft, and the excircle of the rotor can be measured by installing the dial indicator on the horizontal support frame.
A part of wire grooves are axially formed in the rotor spindle, and the circle measuring frame is easy to vibrate at the position where the wire grooves pass through when rotating around the rotor spindle, so that certain influence is caused on the accuracy of measurement. Meanwhile, the rotor spindle is used as a support for the rotation of the spindle connecting mechanism, and the corresponding surface of the rotor spindle needs to be processed with higher precision, so that the processing cost of the rotor spindle is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hydraulic generator rotor is with surveying circle frame to solve among the prior art generator rotor and receive the epaxial wire casing influence of rotor when surveying the circle operation easily and lead to the not high problem of degree of accuracy.
In order to achieve the purpose, the utility model discloses a basic scheme provides a hydraulic generator rotor is with surveying circle frame, including spindle connecting mechanism, horizontal support frame and counter weight frame set up the both sides at spindle connecting mechanism respectively, spindle connecting mechanism includes the rotary drum structure, the upper end and the lower extreme of rotary drum structure have all set firmly side direction bearing structure, spindle connecting mechanism is still including the inboard and the coaxial position sleeve that sets up that is located the rotary drum structure, the rotary drum structure passes through side direction bearing structure and position sleeve normal running fit, the upper end and the lower extreme of position sleeve all are connected with at least three set screw, set screw distributes along the circumference of position sleeve, set screw is along the radial and position sleeve threaded connection of position sleeve.
The principle and the beneficial effect of the basic scheme are as follows: the positioning sleeve is sleeved on the rotor spindle and supported by the rotor support, and the positioning sleeve and the rotor spindle are in a coaxial fixed state through the positioning screw, so that the rotary drum structure rotates around the positioning sleeve to drive the horizontal support frame and the counterweight frame to rotate around the axis of the rotor spindle, and the measurement operation is realized. The rotary drum structure rotates around the locating sleeve when rotating, so that the contact between the lateral bearing structure and a wire groove on a rotor main shaft and the like is avoided, the problem that the measurement accuracy is influenced due to the fact that the horizontal support frame vibrates during measurement is avoided, and the measurement accuracy of the hydraulic generator rotor is guaranteed. Meanwhile, the rotary drum structure does not need to contact the rotor spindle, so that the requirement on the surface machining precision of the rotor spindle is lowered, and the machining cost of the rotor spindle is favorably reduced.
Furthermore, the lower end of the positioning sleeve is coaxially and fixedly connected with an annular supporting table, the upper surface of the supporting table is perpendicular to the axis of the positioning sleeve, and the lower end of the rotary drum structure is connected with a roller matched with the supporting table. By adopting the arrangement, the rotary drum structure and the roller are directly supported through the supporting table, so that the assembly operation of the rotary drum structure is facilitated.
Further, the rollers are universal wheels. By adopting the arrangement, the rotating drum structure can rotate more smoothly.
Furthermore, the lower end of the locating sleeve is in threaded connection with a supporting screw rod, and the supporting screw rod is parallel to the axis of the locating sleeve. By adopting the arrangement, the parallelism between the upper surface of the supporting table on the positioning sleeve and the upper end surface of the rotor support can be conveniently adjusted through the supporting screw rod, and an additional adjusting tool is not required to be arranged, so that the adjustment operation is convenient.
Furthermore, the lateral bearing structure comprises a supporting seat statically connected with the rotary drum structure, a sliding block is connected to the supporting seat in a sliding mode along the radial direction of the rotary drum structure, one end, facing the axis of the rotary drum structure, of the sliding block is connected with a lateral bearing, the rotation axis of the lateral bearing is parallel to the axis of the rotary drum structure, and an adjusting screw group for driving the sliding block to slide is connected between the sliding block and the supporting seat. By adopting the arrangement, the size of a gap between the rotary drum structure and the positioning sleeve can be adjusted through the sliding of the sliding block, so that the positioning sleeve and the rotary drum structure can be separated conveniently during assembly, and the positioning sleeve and the rotary drum structure are assembled step by step, the rotary drum structure is sleeved on the positioning sleeve after the position of the positioning sleeve is adjusted accurately, the coaxiality of the rotary drum structure and the positioning sleeve is adjusted through the lateral bearing, and the assembly operation of the whole main shaft connecting mechanism to the rotor main shaft is facilitated.
Furthermore, the adjusting screw group comprises a first adjusting screw and a second adjusting screw, the first adjusting screw and the second adjusting screw are both arranged in parallel with the sliding direction of the sliding block, one end of the first adjusting screw, which faces the axis of the drum structure, is statically connected with the supporting seat, and one end of the first adjusting screw, which is far away from the axis of the drum structure, penetrates through the sliding block and is connected with a first adjusting nut; the second adjusting screw rod is in threaded connection with the sliding block, and one end, facing the axis of the drum structure, of the second adjusting screw rod is in contact with the supporting seat. By adopting the arrangement, under the condition that the second adjusting screw is not stressed, the first adjusting nut is rotated to push the sliding block to slide towards the axis position of the rotary drum structure under the action of the tensile force of the first adjusting screw, so that the distance between the supporting seat and the positioning sleeve is increased, and the effect of increasing the gap between the position of the corresponding connecting supporting seat on the rotary drum structure and the positioning sleeve is realized; when first adjusting screw does not receive the power, through rotating second adjusting screw, make second adjusting screw promote the slider and slide towards the axis position of keeping away from the rotary drum structure to make the distance between supporting seat and the position sleeve can reduce, thereby realize making the structural effect that reduces in gap between position and the position sleeve of connecting corresponding supporting seat of rotary drum. Therefore, the gap width between the rotary drum structure and the positioning sleeve is convenient to adjust by adjusting the screw rod group.
Drawings
Fig. 1 is a schematic view of an embodiment of a circle measuring frame for a hydraulic generator rotor according to the present invention;
FIG. 2 is a cross-sectional view of the positioning sleeve A-A of FIG. 1;
FIG. 3 is a cross-sectional view of the positioning sleeve B-B of FIG. 1;
fig. 4 is a schematic view of the combination of the position sleeve, the drum structure and the side bearing structure of fig. 1.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the rotor spindle comprises a rotor spindle 1, a rotor bracket 2, a positioning sleeve 41, a positioning screw 42, a lateral bearing structure 43, a drum structure 44, a supporting platform 45, a universal wheel 46, a supporting screw 47, a horizontal supporting frame 48, a supporting seat 431, a sliding block 432, a bulge 4321, a first adjusting screw 433, a first adjusting nut 434, a lateral bearing 435 and a second adjusting screw 436.
The embodiment is substantially as shown in figures 1, 2 and 3 of the accompanying drawings: a circle measuring frame for a hydraulic generator rotor comprises a spindle connecting mechanism, a horizontal support frame 48 and a counterweight frame, wherein the horizontal support frame 48 and the counterweight frame are respectively arranged on two sides of the spindle connecting mechanism. The main shaft connecting mechanism comprises a cylindrical positioning sleeve 41, the upper end and the lower end of the positioning sleeve 41 are both connected with four positioning screws 42, the four positioning screws 42 are distributed around the axis of the positioning sleeve 41 in an annular array, and the positioning screws 42 are in threaded connection with the positioning sleeve 41 along the radial direction of the positioning sleeve 41; an annular support table 45 is coaxially welded and fixed at the lower end of the positioning sleeve 41, and the upper surface of the support table 45 is vertical to the axis of the positioning sleeve 41; the lower end of the positioning sleeve 41 is in threaded connection with a supporting screw rod 47, and the supporting screw rod 47 is arranged in parallel with the axis of the positioning sleeve 41. The spindle connecting mechanism further comprises a rotating drum structure 44, the rotating drum structure 44 comprises an upper positioning ring, a lower positioning ring and a vertical rib, the upper positioning ring and the lower positioning ring are coaxially arranged, and the vertical rib connects the upper positioning ring and the lower positioning ring to form a cylinder shape; the rotary drum structure 44 is sleeved on the outer side of the positioning sleeve 41, the upper end and the lower end of the rotary drum structure 44 are connected with four lateral bearing structures 43, and the four lateral bearing structures 43 are distributed around the axis of the rotary drum structure 44 in an annular array; the drum structure 44 is rotationally engaged with the positioning sleeve 41 by means of a lateral bearing structure 43. The lower end of the drum structure 44 is connected with four universal wheels 46, the four universal wheels 46 are distributed in an annular array around the axis of the drum structure 44, and the drum structure 44 is supported on the support platform 45 through the universal wheels 46.
As shown in fig. 4, the side bearing structure 43 includes a supporting seat 431, the supporting seat 431 is connected with the drum structure 44 through a bolt, a sliding block 432 is connected on the supporting seat 431 in a sliding manner along the radial direction of the drum structure 44, a side bearing 435 is connected at one end of the sliding block 432 facing the axis of the drum structure 44, the rotation axis of the side bearing 435 is parallel to the axis of the drum structure 44, so that the side bearing 435 can rotate around the circumference of the positioning sleeve 41, and an adjusting screw group for driving the sliding block 432 to slide is connected between the sliding block 432 and the supporting seat 431. Specifically, the adjusting screw group comprises a first adjusting screw 433 and a second adjusting screw 436, both the first adjusting screw 433 and the second adjusting screw 436 are arranged in parallel with the sliding direction of the sliding block 432, one end of the first adjusting screw 433, which faces the axis of the drum structure 44, is in threaded connection with the supporting seat 431, one end of the sliding block 432, which is away from the axis of the drum structure 44, is integrally formed with a projection 4321 extending in the radial direction, a through hole for the first adjusting screw 433 to pass through is formed in the projection 4321, and one end of the first adjusting screw 433, which is away from the axis of the drum structure 44, passes through the through hole and is connected with a first adjusting nut 434; the protruding portion 4321 is provided with a threaded hole for the second adjusting screw 436 to pass through, the second adjusting screw 436 is in threaded connection with the sliding block 432 through the threaded hole, and one end of the second adjusting screw 436 facing the axis of the drum structure 44 is in contact with the supporting seat 431.
The specific implementation process is as follows: the positioning sleeve 41 is sleeved on the rotor spindle 1, the supporting table 45 is parallel to the upper end surface of the rotor support 2 by adjusting the supporting screw 47 at the lower end of the positioning sleeve 41, then the drum structure 44 is sleeved on the positioning sleeve 41, the drum structure 44 and the positioning sleeve 41 are coaxial by adjusting the lateral bearing structure 43, and the drum structure 44 is smooth in relative rotation between the lateral bearing structure 43 and the positioning sleeve 41. Then, a dial indicator is arranged between the drum structure 44 and the rotor spindle 1, so that the coaxiality between the drum structure 44 and the rotor spindle 1 is measured, and the drum structure 44 and the rotor spindle 1 are in a coaxial state by adjusting the positioning screws 42 on the positioning sleeves 41. Finally, a horizontal support frame 48 and a balance weight frame are installed on the rotary drum structure 44, and the roundness of the rotor can be measured by installing a dial indicator on the horizontal support frame 48. When rotating around the axis of the rotor spindle 1, the drum structure 44 does not contact with the surface of the rotor spindle 1, but contacts with the positioning sleeve 41, so that the drum structure 44 is prevented from contacting with a wire groove on the rotor spindle 1 and the like during rotation to cause vibration during measurement, and the measurement accuracy is further ensured.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (6)
1. The utility model provides a hydraulic generator rotor is with surveying circle frame, includes spindle connecting mechanism, horizontal support frame and counter weight frame set up respectively in spindle connecting mechanism's both sides, spindle connecting mechanism includes the rotary drum structure, the upper end and the lower extreme of rotary drum structure have all set firmly side direction bearing structure, its characterized in that: the main shaft connecting mechanism further comprises a positioning sleeve which is positioned on the inner side of the rotary drum structure and is coaxially arranged, the rotary drum structure is in running fit with the positioning sleeve through a lateral bearing structure, the upper end and the lower end of the positioning sleeve are connected with at least three positioning screws, the positioning screws are distributed along the circumferential direction of the positioning sleeve, and the positioning screws are in threaded connection with the positioning sleeve along the radial direction of the positioning sleeve.
2. The circle measuring frame for the hydraulic generator rotor according to claim 1, characterized in that: the lower end of the positioning sleeve is coaxially and fixedly connected with an annular supporting table, the upper surface of the supporting table is perpendicular to the axis of the positioning sleeve, and the lower end of the rotary drum structure is connected with a roller matched with the supporting table.
3. The circle measuring frame for the hydraulic generator rotor according to claim 2, characterized in that: the rollers are universal wheels.
4. The circle measuring frame for the hydro-generator rotor according to any one of claims 1 to 3, wherein: the lower end of the positioning sleeve is in threaded connection with a supporting screw rod, and the supporting screw rod is parallel to the axis of the positioning sleeve.
5. The circle measuring frame for the hydraulic generator rotor according to claim 4, characterized in that: the lateral bearing structure comprises a supporting seat which is statically connected with the rotary drum structure, a sliding block is connected to the supporting seat in a sliding mode along the radial direction of the rotary drum structure, one end, facing the axis of the rotary drum structure, of the sliding block is connected with a lateral bearing, the rotation axis of the lateral bearing is parallel to the axis of the rotary drum structure, and an adjusting screw group which drives the sliding block to slide is connected between the sliding block and the supporting seat.
6. The circle measuring frame for the hydraulic generator rotor according to claim 5, characterized in that: the adjusting screw group comprises a first adjusting screw and a second adjusting screw, the first adjusting screw and the second adjusting screw are both arranged in parallel with the sliding direction of the sliding block, one end of the first adjusting screw, facing the axis of the drum structure, is statically connected with the supporting seat, and one end of the first adjusting screw, far away from the axis of the drum structure, penetrates through the sliding block and is connected with a first adjusting nut; the second adjusting screw rod is in threaded connection with the sliding block, and one end, facing the axis of the drum structure, of the second adjusting screw rod is in contact with the supporting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120625872.2U CN214308550U (en) | 2021-03-29 | 2021-03-29 | Circle measuring frame for hydraulic generator rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120625872.2U CN214308550U (en) | 2021-03-29 | 2021-03-29 | Circle measuring frame for hydraulic generator rotor |
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| Publication Number | Publication Date |
|---|---|
| CN214308550U true CN214308550U (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120625872.2U Active CN214308550U (en) | 2021-03-29 | 2021-03-29 | Circle measuring frame for hydraulic generator rotor |
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| CN (1) | CN214308550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061412A (en) * | 2021-11-23 | 2022-02-18 | 中国水电四局(酒泉)新能源装备有限公司 | Roundness detection device for wind power generation tower barrel |
-
2021
- 2021-03-29 CN CN202120625872.2U patent/CN214308550U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061412A (en) * | 2021-11-23 | 2022-02-18 | 中国水电四局(酒泉)新能源装备有限公司 | Roundness detection device for wind power generation tower barrel |
| CN114061412B (en) * | 2021-11-23 | 2023-08-18 | 中国水电四局(酒泉)新能源装备有限公司 | Roundness detection device for wind power generation tower barrel |
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