CN112729678A - Dynamic balance test auxiliary device with stator for compressor - Google Patents
Dynamic balance test auxiliary device with stator for compressor Download PDFInfo
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- CN112729678A CN112729678A CN202011643232.0A CN202011643232A CN112729678A CN 112729678 A CN112729678 A CN 112729678A CN 202011643232 A CN202011643232 A CN 202011643232A CN 112729678 A CN112729678 A CN 112729678A
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 210000004907 gland Anatomy 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/02—Details of balancing machines or devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
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- General Physics & Mathematics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a dynamic balance test auxiliary device of a compressor with a stator, belongs to the technical field of aircraft maintenance, and provides the dynamic balance test auxiliary device of the compressor with the stator, which is convenient for the compressor with the stator to carry out dynamic balance test; the test device comprises a balance support, wherein two ends of the balance support are respectively provided with a connecting bearing bush which is used for being connected and matched with a test balancing machine, two rotor supports are arranged between the connecting bearing bushes at the two ends of the balance support, and at least one stator support is also arranged between the two rotor supports on the balance support. The invention can respectively realize the relative fixation of the compressor rotor and the compressor stator by arranging the corresponding rotor support and stator support, so that the compressor rotor and the compressor stator which are originally in a relative separation and free state are in a relative fixed relation by the auxiliary device, and the dynamic balance test of the whole compressor with the stator is met.
Description
Technical Field
The invention relates to the technical field of aircraft maintenance, in particular to a dynamic balance test auxiliary device with a stator for a compressor.
Background
In some aviation turboshaft engine repairs, horizontal dynamic balance tests need to be carried out on a compressor assembly. The whole-ring stator structure is used by some gas compressors, so that the whole structure of the gas compressor is more compact, the weight is lighter and the efficiency is higher; however, this also makes it necessary to perform a dynamic balance test in a state where the compressor is completely equipped with one to four stages of stators, and a dynamic balance test in an integrated structure with a stator for the compressor, and it is impossible to perform a dynamic balance test after a rotor portion of the compressor is separated alone. In the dynamic balance process, the rotor and the stator are easy to rub against each other due to improper control of the radial clearance of the rotor and the stator, and the axial clearance, the coaxiality and other requirements between the rotor and the stator of the gas compressor must be ensured because the rotor and the stator of the gas compressor are not associated and matched originally during the dynamic balance test. Therefore, it is urgently needed to provide an auxiliary device for a dynamic balance test of a compressor stator so as to solve the radial and axial positioning problems of the compressor stator and perform multi-degree-of-freedom adjustment on the compressor stator so as to ensure the coaxial and specific axial clearance fit relationship between the compressor rotor and the compressor stator.
Disclosure of Invention
The invention aims to provide a dynamic balance test auxiliary device of a compressor with a stator, which is convenient for the dynamic balance test of the compressor with the stator.
The technical scheme adopted by the invention for solving the technical problems is as follows: the dynamic balance test auxiliary device with the stator for the compressor comprises a balance support, wherein two ends of the balance support are respectively provided with a connecting bearing bush used for being connected with the balance for test, two rotor supports are arranged between the connecting bearing bushes at the two ends of the balance support, the two rotor supports are respectively arranged at the two ends of the balance support, each rotor support is provided with an arc-shaped groove, a detachable arc-shaped gland is arranged above the arc-shaped groove of each rotor support, a rotor clamping part used for clamping the compressor rotor is formed after the arc-shaped grooves are matched with the arc-shaped glands, at least one stator support is further arranged between the two rotor supports on the balance support, and a stator connecting part used for being matched with the compressor stator for fixedly connecting and supporting and fixing the compressor stator is arranged on the stator support.
Further, the method comprises the following steps: every stator support includes base and regulation seat, base fixed mounting is on balanced support, adjust the seat can for the base is followed balanced support's left right direction and/or upper and lower direction removal regulation, stator connecting portion fixed mounting is on adjusting the seat.
Further, the method comprises the following steps: the base comprises a base transverse plate and a base vertical plate, the adjusting seat comprises an adjusting seat transverse plate and an adjusting seat vertical plate, the base vertical plate and the adjusting seat vertical plate are arranged in a stacked mode and are connected through a first connecting bolt, a waist-shaped hole in the vertical direction is formed in one of the base vertical plate and the adjusting seat vertical plate and is matched with the first connecting bolt, a threaded hole in threaded fit with the first connecting bolt is formed in the other one of the base vertical plate and the adjusting seat vertical plate, and gaskets with different thicknesses can be arranged between the base vertical plate and the adjusting seat vertical plate in a cushioning mode; the base transverse plate and the adjusting seat transverse plate are arranged in parallel at intervals from top to bottom, a supporting adjusting bolt is arranged between the base transverse plate and the adjusting seat transverse plate, the lower end of the supporting adjusting bolt is fixedly connected with the base vertical plate, an adjusting nut in threaded fit with the supporting adjusting bolt is arranged at the upper end of the supporting adjusting bolt, and the adjusting nut is abutted against the adjusting seat transverse plate.
Further, the method comprises the following steps: the stator connecting part of one of the stator supports is a semicircular arc-shaped connecting plate, a plurality of bolt holes are arranged on the semicircular arc-shaped connecting plate at intervals, and second connecting bolts used for being connected with the compressor stator are arranged in the bolt holes.
Further, the method comprises the following steps: the stator connecting portion of one of the stator supports is a semi-arc-shaped groove plate, a supporting groove used for placing and supporting the compressor stator is formed in the arc-shaped groove plate, push rods are arranged at two ends of the arc-shaped groove plate respectively, the push rods can be installed on the arc-shaped groove plate and can move and adjust in a telescopic mode towards the inner direction of the supporting groove, a pushing clamping piece is arranged at one end portion, facing the supporting groove, of each push rod, and the two push rods located at two ends of the arc-shaped groove plate of the same stator support are arranged in a mirror symmetry mode.
Further, the method comprises the following steps: the push rod and the arc-shaped groove plate are in a thread matching structure.
Further, the method comprises the following steps: the stator support is provided with two, and two stator supports set up respectively in the both ends of balanced support.
The invention has the beneficial effects that: the invention can respectively realize the relative fixation of the compressor rotor and the compressor stator by arranging the corresponding rotor support and stator support, so that the compressor rotor and the compressor stator which are originally in a relative separation and free state are in a relative fixed relation by the auxiliary device; and then the whole auxiliary device and the compressor with the stator which needs to be subjected to the dynamic balance test are integrally installed in the balancing machine for the test to be subjected to the dynamic balance test. In addition, by arranging the corresponding adjustable stator support structure, the relative position of the corresponding stator connecting part and the corresponding rotor clamping part can be adjusted by adjusting the stator support structure, so that the relative position of the installed compressor stator relative to the compressor rotor can be adjusted, the coaxial and specific axial clearance fit relation between the compressor rotor and the compressor stator during the test is ensured, and the effectiveness and the accuracy of the test are ensured.
Drawings
Fig. 1 is a schematic perspective view of a dynamic balance test auxiliary device with a stator for a compressor according to the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is an enlarged view of a portion A of FIG. 2;
FIG. 5 is a schematic view of a stator connection portion of a first type of stator support;
FIG. 6 is a schematic view of a stator connection portion of a second type of stator support;
labeled as: the balance support 1, the connecting bearing bush 2, the rotor support 3, the arc-shaped groove 31, the arc-shaped gland 32, the rotor clamping part 33, the stator support 4, the base 41, the adjusting seat 42, the base transverse plate 411, the base vertical plate 412, the adjusting seat transverse plate 421, the adjusting seat vertical plate 422, the first connecting bolt 43, the gasket 44, the supporting and adjusting bolt 45, the adjusting nut 46, the connecting plate 5, the second connecting bolt 51, the arc-shaped groove plate 6, the supporting groove 61, the push rod 62 and the pushing and clamping part 63.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
It should be noted that, if there are directional indication terms, such as the terms of direction and orientation, above, below, left, right, front and back, in the present invention, for facilitating the description of the relative positional relationship between the components, the absolute position that is not the positional relationship between the related components and the components is specifically referred to, and is only used for explaining the relative positional relationship and the motion situation between the components in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly. When the present invention relates to a number, such as "a plurality", "several", etc., two or more than two are specifically referred to.
As shown in fig. 1 to 6, the dynamic balance test auxiliary device for a compressor with a stator according to the present invention includes a balance bracket 1, two ends of the balance bracket 1 are respectively provided with a connecting bearing bush 2 which is used for connecting and matching with a balance machine for testing, two rotor supports 3 are arranged between the connecting bearing bushes 2 at the two ends of the balance support 1, the two rotor supports 3 are respectively arranged at the two ends of the balance support 1, each rotor support 3 is provided with an arc-shaped groove 31, and a detachable arc-shaped gland 32 is arranged above the arc-shaped groove 31 of each rotor support 3, a rotor clamping part 33 for clamping the compressor rotor is formed after the arc-shaped groove 31 is matched with the arc-shaped gland 32, at least one stator support 4 is also arranged on the balance support 1 between the two rotor supports 3, the stator support 4 is provided with a stator connecting part which is used for being fixedly connected and matched with the compressor stator so as to support and fix the compressor stator.
When the auxiliary device is used, the compressor rotor and the compressor stator are respectively fixed through the corresponding rotor support 3 and the corresponding stator support 4, so that the compressor rotor and the compressor stator which are originally in a relatively separated and free state are in a relatively fixed relation through the auxiliary device. And then the whole auxiliary device and the compressor with the stator which needs to be subjected to the dynamic balance test are integrally installed in a balancing machine for the test to be subjected to the dynamic balance test. In the dynamic balance test process, the auxiliary device keeps the relative position fixed relation of the compressor rotor and the compressor stator, so that the condition of collision and abrasion between the rotor and the stator caused by relative movement of the compressor rotor and the compressor stator in the test process can be avoided.
Without loss of generality, after the compressor is installed, the compressor rotor should be kept coaxial with the connecting bearing bushes 2 at the two ends of the balance bracket 1 as much as possible, that is, the connecting bearing bushes 2 at the two ends and the two rotor supports 3 should be integrally in a coaxial position relationship, which can be specifically referred to as shown in the attached drawings.
More specifically, each stator support 4 further comprises a base 41 and an adjusting seat 42, the base 41 is fixedly installed on the balance bracket 1, the adjusting seat 42 can move and adjust along the left-right direction and/or the up-down direction of the balance bracket 1 relative to the base 41, and the stator connecting part is fixedly installed on the adjusting seat 42. The stator support 4 can be adjusted through the arrangement, so that the relative position of the compressor stator and the compressor rotor can be adjusted through adjusting the stator support 4, the coaxial and specific axial clearance fit relation between the compressor rotor and the compressor stator during testing is ensured, and the effectiveness and accuracy of the testing are ensured. The left-right direction and the up-down direction are specifically directions in the case of the orientation shown in fig. 2.
More specifically, referring to a specific structure of the base 41 and the adjusting seat 42 shown in fig. 4, wherein the base 41 includes a base transverse plate 411 and a base vertical plate 412, the adjusting seat 42 includes an adjusting seat transverse plate 421 and an adjusting seat vertical plate 422, the base vertical plate 412 and the adjusting seat vertical plate 422 are stacked and connected by a first connecting bolt 43, one of the base vertical plate 412 and the adjusting seat vertical plate 422 is provided with a waist-shaped hole in the vertical direction to be matched with the first connecting bolt 43, the other of the base vertical plate 412 and the adjusting seat vertical plate 422 is provided with a threaded hole in threaded fit with the first connecting bolt 43, and a gasket 44 with different thicknesses can be arranged between the base vertical plate 412 and the adjusting seat vertical plate 422; base diaphragm 411 and regulation seat diaphragm 421 are upper and lower spaced parallel arrangement, are provided with between base diaphragm 411 and regulation seat diaphragm 421 and support adjusting bolt 45, support adjusting bolt 45's lower extreme and base riser 412 fixed connection, support adjusting bolt 45's upper end be provided with support adjusting bolt 45 screw-thread fit's adjusting nut 46, adjusting nut 46 supports and leans on adjusting seat diaphragm 421. In the above structure, after the base vertical plate 412 and the adjusting seat vertical plate 422 are connected by the first connecting bolt 43, the base vertical plate 412 and the adjusting seat vertical plate 422 can be allowed to move up and down in the vertical direction, and then the adjusting nut 46 is adjusted to push the adjusting seat transverse plate 421, so that the relative position adjustment between the base 41 and the adjusting seat 42 in the up-down direction can be realized. The relative position adjustment of the base 41 and the adjusting seat 42 in the left-right direction can be realized by selectively cushioning the gaskets 44 with different thicknesses between the base vertical plate 412 and the adjusting seat vertical plate 422. In addition, because the adjustment amount of the relative position required by the compressor rotor and the compressor stator is a fine adjustment amount, which is generally several millimeters, in practical situations, the adjustment amount between the base 41 and the adjustment seat 42 is not large, and only the fine adjustment amount required in practical situations needs to be met.
More specifically, with reference to the drawings, the present invention further provides specific structural examples of the stator connecting portion of two different stator supports 4:
firstly, as shown in fig. 5, the stator connecting portion of the stator support 4 is a semicircular arc-shaped slot plate 6, a supporting slot 61 for placing and supporting the compressor stator is arranged on the arc-shaped slot plate 6, two push rods 62 are respectively arranged at two ends of the arc-shaped slot plate 6, the push rods 62 are installed on the arc-shaped slot plate 6 for being capable of moving and adjusting in a telescopic manner towards the inner direction of the supporting slot 61, a pushing clamping member 63 is arranged at one end portion of each push rod 62 facing the supporting slot 61, and the two push rods 62 at two ends of the arc-shaped slot plate 6 of the same stator support 4 are arranged in a mirror symmetry manner. The matching structure of the stator connecting part and the compressor stator is as follows: the outer peripheral wall of the compressor stator is directly placed in the supporting groove 61, the supporting groove 61 plays a certain surrounding and supporting role on the compressor stator, and certainly, the arc-shaped structure of the supporting groove 61 is basically consistent with the shape structure of the corresponding outer peripheral wall of the compressor stator without loss of generality; then, the push rods 62 are adjusted from two sides of the compressor stator, so that the push clamping pieces 63 on two sides push the phase pieces to move and clamp the compressor stator. In addition, in the structure, the micro-adjustment of the positions of the compressor stator in the directions of the two sides can be realized by adjusting the push rods 62 at the two sides. More specifically, the push rod 62 may be configured to be in a thread fit with the arc-shaped slot plate 6, so as to facilitate the movement adjustment of the push rod 62.
Secondly, referring to fig. 6, the stator connecting portion of the stator support 4 is a semicircular arc-shaped connecting plate 5, a plurality of bolt holes are arranged on the semicircular arc-shaped connecting plate 5 at intervals, and second connecting bolts 51 for connecting with the compressor stator are arranged in the bolt holes. In the structure, a connecting flange correspondingly matched with the connecting plate 5 is required to be arranged on the periphery of the compressor stator, and then the connecting plate 5 is connected with the connecting flange in a matching mode through the second connecting bolt 51, so that the compressor stator is fixed.
In addition, two stator supports 4 can be specifically arranged in the invention, and the two stator supports 4 are respectively arranged at two ends of the balance bracket 1. Of course, the two stator carriers 4 can in principle be of the same construction or of different constructions. In the case shown in the drawings, it is preferable to provide a stator connecting portion having a structure shown in fig. 5 on one side of two stators and a stator connecting portion having a structure shown in fig. 6 on the other side of the two stators.
Claims (7)
1. The dynamic balance test auxiliary device of the compressor belt stator is characterized in that: comprises a balance bracket (1), two ends of the balance bracket (1) are respectively provided with a connecting bearing bush (2) which is used for connecting and matching with a balancing machine for testing, two rotor supports (3) are arranged between the connecting bearing bushes (2) at the two ends of the balance support (1), the two rotor supports (3) are respectively arranged at the two ends of the balance support (1), each rotor support (3) is provided with an arc-shaped groove (31), and a detachable arc-shaped gland (32) is arranged above the arc-shaped groove (31) of each rotor support (3), a rotor clamping part (33) for clamping the compressor rotor is formed after the arc-shaped groove (31) is matched with the arc-shaped gland (32), at least one stator support (4) is arranged between the two rotor supports (3) on the balance support (1), the stator support (4) is provided with a stator connecting part which is used for being fixedly connected and matched with the compressor stator so as to support and fix the compressor stator.
2. The dynamic balance test auxiliary device of a compressor with a stator as claimed in claim 1, wherein: every stator support (4) includes base (41) and regulation seat (42), base (41) fixed mounting is on balanced support (1), adjust seat (42) can for base (41) move along the left and right sides direction and/or upper and lower direction of balanced support (1) and adjust, stator connecting portion fixed mounting is on adjusting seat (42).
3. The dynamic balance test auxiliary device of a compressor with a stator as claimed in claim 2, wherein: the base (41) comprises a base transverse plate (411) and a base vertical plate (412), the adjusting seat (42) comprises an adjusting seat transverse plate (421) and an adjusting seat vertical plate (422), the base vertical plate (412) and the adjusting seat vertical plate (422) are arranged in a stacked mode and connected through a first connecting bolt (43), one of the base vertical plate (412) and the adjusting seat vertical plate (422) is provided with a waist-shaped hole in the vertical direction to be matched with the first connecting bolt (43), the other one of the base vertical plate (412) and the adjusting seat vertical plate (422) is provided with a threaded hole in threaded fit with the first connecting bolt (43), and gaskets (44) with different thicknesses can be arranged between the base vertical plate (412) and the adjusting seat vertical plate (422) in a cushioning mode; base diaphragm (411) and regulation seat diaphragm (421) are upper and lower spaced parallel arrangement, are provided with between base diaphragm (411) and regulation seat diaphragm (421) and support adjusting bolt (45), support the lower extreme and base riser (412) fixed connection of adjusting bolt (45), support the upper end of adjusting bolt (45) be provided with support adjusting bolt (45) screw-thread fit's adjusting nut (46), adjusting nut (46) support by on regulation seat diaphragm (421).
4. The dynamic balance test auxiliary device of a compressor with a stator as claimed in claim 1, wherein: the stator connecting part of the stator support (4) is a semicircular arc-shaped connecting plate (5), a plurality of bolt holes are arranged on the semicircular arc-shaped connecting plate (5) at intervals, and second connecting bolts (51) used for being connected with the compressor stator are arranged in the bolt holes.
5. The dynamic balance test auxiliary device of a compressor with a stator as claimed in claim 1, wherein: the stator connecting portion of stator support (4) is arc-shaped groove plate (6) of half a circular arc, support groove (61) that are used for placing and supporting the compressor stator have on arc-shaped groove plate (6), and be provided with one push rod (62) respectively at the both ends of arc-shaped groove plate (6), push rod (62) are for can be towards support groove (61) inside direction flexible move adjusting install on arc-shaped groove plate (6), be provided with on push rod (62) towards the one end tip of support groove (61) and push away clamping piece (63), two push rods (62) that are located the both ends of arc-shaped groove plate (6) of same stator support (4) are mirror symmetry and set up.
6. The dynamic balance test auxiliary device of a compressor with a stator as claimed in claim 5, wherein: the push rod (62) and the arc-shaped groove plate (6) are in a thread matching structure.
7. The dynamic balance test auxiliary device of a compressor with a stator as claimed in any one of claims 1 to 6, wherein: the number of the stator supports (4) is two, and the two stator supports (4) are respectively arranged at two ends of the balance support (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011643232.0A CN112729678A (en) | 2020-12-30 | 2020-12-30 | Dynamic balance test auxiliary device with stator for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011643232.0A CN112729678A (en) | 2020-12-30 | 2020-12-30 | Dynamic balance test auxiliary device with stator for compressor |
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| Publication Number | Publication Date |
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| CN112729678A true CN112729678A (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011643232.0A Pending CN112729678A (en) | 2020-12-30 | 2020-12-30 | Dynamic balance test auxiliary device with stator for compressor |
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| Country | Link |
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| CN (1) | CN112729678A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113567044A (en) * | 2021-06-23 | 2021-10-29 | 四川航天中天动力装备有限责任公司 | Dynamic balance clamp device for compressor rotor of turbojet engine |
| CN113758717A (en) * | 2021-09-10 | 2021-12-07 | 中国航发湖南动力机械研究所 | Combined type rigidity test support |
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| CN113758717A (en) * | 2021-09-10 | 2021-12-07 | 中国航发湖南动力机械研究所 | Combined type rigidity test support |
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Application publication date: 20210430 |
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