GB2607492A

GB2607492A - Centering rotating device for assembling high-pressure compressor of aero-engine

Info

Publication number: GB2607492A
Application number: GB2211466.4A
Authority: GB
Inventors: Zhu Shouxi
Original assignee: Binzhou University
Current assignee: Binzhou University
Priority date: 2021-01-12
Filing date: 2021-11-12
Publication date: 2022-12-07
Also published as: GB202211466D0; WO2022151825A1; CN112659073A; CN112659073B

Abstract

A centering rotating device for assembling a high-pressure compressor of an aero-engine. The centering rotating device comprises a base (1), wherein the base (1) comprises supporting clamping plates (101); the base (1), as a whole, is of an elongated rectangular structure; a row of bottom-touching fixing plates are welded to the inside bottom of the base at equal intervals, and a sliding groove is provided in each of left and right side rods of the base (1); a supporting frame (2) is mounted in the two sliding grooves in a sliding manner; and a supporting table is welded to the left half section of the base (1) in a supported manner; and two supporting clamping plates (101) are symmetrically welded to the supporting table.

Description

CENTERING ROTATING DEVICE FOR ASSEMBLING HIGH-PRESSURE

COMPRESSOR OF AERO-ENGINE

TECHNICAL FIELD

100011 The present disclosure relates to the technical field of aero-engine assembling devices, specifically to a centering rotating device for assembling a high-pressure compressor of an aero-engine

BACKGROUND ART

100021 A high-pressure compressor is an important part of an aero-engine. On the one hand, assembling methods for a high-pressure compressor at a low-pressure stage and a high-pressure stage are different. At the low-pressure stage, a split semi-circular casing is usually used, and a stator is connected to the casing. A high-pressure casing is usually an integral type. During assembling, a stator blade is first mounted, and an annular casing is then mounted. On the other hand, in the assembling process, there is no physical connection between the stator casing and a rotor shaft, whether in an axial direction or a radial direction, so that the stator casing and the rotor shaft will move relatively, which requires that a gap needs to be reserved between the stator casing and a rotating shaft in the assembling process, and ensures that the stator casing and the rotating shaft will not collide with each other. Therefore, a centering rotating device for assembling a high-pressure compressor of an aero-engine is required.

100031 For example, the patent No. CN201821972000.8 discloses a device for assembling and positioning a compressor casing. The device includes a clamp; a positioning mandrel and a positioning pin for fitting and mounting the compressor casing; and a side top assembly for precisely positioning the compressor casing. The positioning mandrel and the side top assembly are arranged on the clamp, and the positioning pin is arranged on the clamp and is fixedly connected with the positioning mandrel. The side top assembly includes a base, a top block which is arranged on the base and is retractable, and a swing arm assembly which is arranged on the base and can drive the top block to extend and retract. In this invention, after preliminary positioning of the positioning mandrel and the positioning pin is completed, precise positioning is assisted to be completed by the side top assembly, thus ensuring the consistency and a position tolerance of the compressor casing in the mounting process. The device is designed to adapt to the shape of the compressor casing, so that the device is simple in structure and convenient to mount and use, which greatly improves the mounting efficiency and accuracy of the compressor casing.

100041 When the existing assembling device is used, steel wire slings at two ends of a rotating shaft of a compressor need to be manually threaded off, and the operation is inconvenient and laborsome; furthermore, a positioning component of a rotating shaft of the compressor also needs to be manually operated; therefore, the use steps are cumbersome, which increases the working intensity of a worker and affects the assembling and use efficiency of the use.

SUMMARY

100051 The present disclosure aims to provide a centering rotating device for assembling a high-pressure compressor of an aero-engine, so as to solve the problems in the above background that steel wire slings at two ends of a rotating shaft of a compressor need to be manually threaded off, and the operation is inconvenient and laborsome 100061 In order to solve the above-mentioned objective, the present disclosure provides the following technical solution-A centering rotating device for assembling a high-pressure compressor of an aero-engine includes a base; the base includes two supporting clamping plates; the entire base is of an elongated rectangular structure; a row of bottom fixing plates are welded at an inside bottom of the base at equal intervals; a sliding chute is formed in each of left and right side rods of the base: a bracket is slidably mounted in the two sliding chutes; a supporting table is supported and welded on a left half section of the base; the two supporting clamping plates are symmetrically welded on the supporting table; the two supporting clamping plates are used for supporting and carrying an engine casing; the bracket includes two L-shaped supporting rods and cross-brace axles; the entire bracket is formed by welding a bottom rectangular supporting frame and the two L-shaped supporting rods symmetrically welded at a top end; two rows of cross-brace axles are symmetrically welded on a bottom plate of the rectangular supporting frame; one roller is sleeved at a head end of each of the two rows of cross-brace axles, and the two rows of rollers are correspondingly fitted to the sliding chutes on the left and right parts on the base; a head end of each of the two L-shaped supporting rods is welded with one supporting bowl in an upwards supporting manner; a rotating shaft of the compressor is clamped on the left and right supporting bowls, a top end of each of the two L-shaped supporting rods is pushed by springs to be inserted with one T-shaped insertion rod in a penetrating manner, front half sections of the two T-shaped insertion rods pass through supporting mounting plates of the two supporting bowls; two shaft rods are symmetrically welded on the supporting mounting plates of the two supporting bowls; one group of L-shaped hook rods are sleeved and mounted on each of the left and right groups of shaft rods; the supporting bowls include vertical support positioning shafts, inner sides of the supporting and mounting plates at the bottoms of the two supporting bowls are symmetrically welded with the two vertical support positioning shafts; and each of upper and lower forwards protruding mounting supporting plates of the two vertical support positioning shafts is pushed by a spring to be vertically inserted with one rectangular positioning frame in a penetrating manner. 100071 Preferably, each T-shaped insertion rod includes a semicircular push ring; a front half section of each of the two T-shaped insertion rods is welded with one semicircular push ring in a supported manner; and when the two T-shaped insertion rods slide forwards, the two semicircular push rings are in contact with the two supporting bowls in an abutting manner.

100081 Preferably, the T-shaped insertion rods also include trapezoid top blocks; a head end of each T-shaped insertion rod is provided with one trapezoid top block; and the two trapezoid top blocks are slidably located at inside ends of the two supporting bowls.

100091 Preferably, a top end of each of the four hook rods is rotatably provided with one shaft roller; and the two groups of hook rods are mounted oppositely and are oppositely rotatably hooked to upper half parts of two ends of the rotating shaft of the compressor.

100101 Preferably, the supporting bowls also include horizontal sliding plates and trapezoid positioning blocks; each of the two vertical support positioning shafts is pushed by a spring to be slidably provided with one horizontal sliding plate; one trapezoid positioning block is welded and fixed in the middle of a top end of each horizontal sliding plate; and the trapezoid top blocks are in contact with slopes of the trapezoid positioning blocks in an abutment manner.

100111 Preferably, one sliding chute is formed in a lower half section of each of the left and right groups of L-shaped hook rods; two ends of the two horizontal sliding plates are symmetrically welded with two push rods; and the four push rods are in slidable fit with the sliding chutes on the lower half sections of the four L-shaped hook rods in a penetrating manner.

100121 Preferably, the positioning frames include guide rollers and insertion rods; a top end of each of the two positioning frames is provided with one guide roller in a supported manner; a middle cross-brace connecting rod of each of the two positioning frames is upwards welded and supported with one insertion rod; and the two insertion rods pass through head end sections of the two T-shaped insertion rods.

100131 Preferably, one groove is formed in a middle position of each of the two supporting bowls, and the two guide rollers slide down to be embedded into the two grooves.

100141 Compared with the prior art, the present disclosure has the following beneficial effects.

100151 L After the two T-shaped insertion rods of the present invention are released, the springs on them rebound and push the two semicircular push rings to slide to the outside to thread off the steel wire slings at the two ends of the rotating shaft of the compressor, so that the troublesome operation of manually releasing and separating the steel wire slings is eliminated, and the use is convenient and labor-saving.

100161 2. In the present disclosure, when the compressor is supported and clamped, the two ends of the rotating shaft of the compressor will downwards press the two guide rollers to enable the positioning frames and the two insertion rods to slide down to release the two T-shaped insertion rods; after the two T-shaped insertion rods are released, the two T-shaped insertion rods can automatically slide to the outside under the pushing of the springs to thread off the steel wire slings, the two horizontal sliding plates are pushed to slide down to drive the two groups of L-shaped hook rods to automatically swing and be hooked to the rotating shaft of the compressor. Therefore, the step of manually swinging the two groups of L-shaped hook rods is eliminated, so that the positioning flow for the compressor is simplified, and the use operation is quick and simple.

100171 3. The two semicircular push rings and the two groups of L-shaped hook rods of the present disclosure are pushed and driven by the sliding of the two T-shaped sliding rods, and the two T-shaped insertion rods are pressed and released under the gravity of the compressor, so that the two semicircular push rings (which are thread-off components for the steel wire slings) and the two L-shaped hook rods (which are positioning components for the rotating shaft of the compressor) can be automatically triggered and driven during assembling, without manual intervention; and the design is ingenious and reasonable, and the use is flexible, time-saving and labor-saving.

BRIEF DESCRIPTION OF THE DRAWINGS

100181 FIG. 1 is a schematic structural diagram of the present disclosure; 100191 FIG. 2 is a schematic diagram of supporting and clamping of an engine casing of the present disclosure; 100201 FIG. 3 is a schematic diagram of supporting placement of a compressor of the present disclosure; 100211 FIG. 4 is a schematic structural diagram of a bracket of the present disclosure; 100221 FIG. 5 is a schematic structural diagram of a supporting bowl of the present disclosure; 100231 FIG 6 is a schematic structural diagram of a hook rod of the present disclosure; 100241 FIG. 7 is a schematic structural diagram of a bottom of an L-shaped supporting rod of the present disclosure; 100251 FIG. 8 is a schematic structural diagram of a T-shaped insertion rod of the present disclosure; 100261 FIG. 9 is a schematic structural diagram of a positioning frame of the present disclosure; and 100271 FIG. 10 is a schematic enlarged structural diagram of a portion A of the present disclosure in FIG. 8.

100281 In the drawings, correspondence relationships between names of components and drawing numerals are as follows: 100291 1: base; 101: supporting clamping plate; 2: bracket; 201: L-shaped supporting rod; 202: cross-brace axle; 3: T-shaped insertion rod; 301: semicircular push ring; 302: trapezoid top block; 4: hook rod; 5: supporting bowl; 501: vertical support positioning shaft; 502: horizontal sliding plate; 503: trapezoid positioning block; 6: positioning frame. 601: guide roller; 602: insertion rod.

DETAILED DESCRIPTION OF THE EMBODIMENTS

100301 The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in combination with the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are only part of the embodiments of the present disclosure, not all embodiments.

100311 Referring to FIG. I to FIG. 10, according to one embodiment provided by the present disclosure, a centering rotating device for assembling a high-pressure compressor of an aero-engine includes a base 1; the base 1 includes supporting clamping plates 101, the entire base 1 is of an elongated rectangular structure; a row of bottom fixing plates are welded at an inside bottom of the base at equal intervals; a sliding chute is formed in each of left and right side rods of the base 1; and a bracket 2 is slidably mounted in the two sliding chutes. A supporting table is supported and welded on a left half section of the base 1; two supporting clamping plates 101 are symmetrically welded on the supporting table; and the two supporting clamping plates 101 are used for supporting and carrying an engine casing. The bracket 2 includes two L-shaped supporting rods 201 and cross-brace axles 202; the entire bracket 2 is formed by welding a bottom rectangular supporting frame and the two L-shaped supporting rods 201 symmetrically welded at a top end. Two rows of cross-brace axles 202 are symmetrically welded on a bottom plate of the rectangular supporting frame; one roller is sleeved at a head end of each of the two rows of cross-brace axles 202, and the two rows of rollers are correspondingly fitted to the sliding chutes on the left and right parts on the base 1. A head end of each of the two L-shaped supporting rods 201 is welded with one supporting bowl 5 in an upwards supporting manner; a rotating shaft of the compressor is clamped on the left and right supporting bowls 5; a top end of each of the two L-shaped supporting rods 201 is pushed by springs to be inserted with one T-shaped insertion rod 3 in a penetrating manner. Front half sections of the two T-shaped insertion rods 3 pass through supporting mounting plates of the two supporting bowls 5; two shaft rods are symmetrically welded on the supporting mounting plates of the two supporting bowls 5; and one group of L-shaped hook rods 4 are sleeved and mounted on each of the left and right groups of shaft rods. The supporting bowls 5 include vertical support positioning shafts 501; inner sides of the supporting and mounting plates at the bottoms of the two supporting bowls 5 are symmetrically welded with the two vertical support positioning shafts 501. Each of upper and lower forwards protruding mounting supporting plates of the two vertical support positioning shafts 501 is pushed by a spring to be vertically inserted with one rectangular positioning frame 6 in a penetrating manner. The T-shaped insertion rods 3 also include trapezoid top blocks 302; a head end of each T-shaped insertion rod 3 is provided with one trapezoid top block 302; and the two trapezoid top blocks 302 are slidably located at inside ends of the two supporting bowls 5. A top end of each of the four hook rods 4 is rotatably provided with one shaft roller; and the two groups of hook rods 4 are mounted oppositely and are oppositely rotatably hooked to upper half parts of two ends of the rotating shaft of the compressor. The two groups of hook rods 4 can hook and position the rotating shaft of the compressor to avoid the compressor from being separated from the two supporting bowls 5 in a rotatable threading process. The supporting bowls 5 also include horizontal sliding plates 502 and trapezoid positioning blocks 503; each of the two vertical support positioning shafts 501 is pushed by a spring to be slidably provided with one horizontal sliding plate 502; one trapezoid positioning block 503 is welded and fixed in the middle of a top end of each horizontal sliding plate 502; and the trapezoid top blocks 302 are in contact with slopes of the trapezoid positioning blocks 503 in an abutment manner. By means of the trapezoid top blocks 302, the T-shaped insertion rods 3 can downwards push the trapezoid positioning blocks 503 and the horizontal sliding plate 502 when they are released and slide to the outside, so as to provide a swing driving force for the L-shaped hook rod 4. One sliding chute is formed in a lower half section of each of the left and right groups of L-shaped hook rods 4; two ends of the two horizontal sliding plates 502 are symmetrically welded with two push rods; and the four push rods are in slidable fit with the sliding chutes on the lower half sections of the four L-shaped hook rods 4 in a penetrating manner. The two L-shaped hook rods 4 and the two push rods at the two ends of the horizontal sliding plates 502 jointly form one double-connecting-rod top slide swing mechanism. By this mechanism, the two L-shaped hook rods 4 can be driven to inwards rotate and be hooked to the rotating shaft of the compressor by only downwards pushing the horizontal sliding plates 502.

100321 Further, each T-shaped insertion rod 3 includes a semicircular push ring 301; a front half section of each of the two T-shaped insertion rods 3 is welded with one semicircular push ring 301 in a supported manner; and when the two T-shaped insertion rods 3 slide forwards, the two semicircular push rings 301 are in contact with the two supporting bowls 5 in an abutting manner. After the two T-shaped insertion rods 3 are released, the springs on them rebound and push the two semicircular push rings 301 to slide to the outside to thread off the steel wire slings at the two ends of the rotating shaft of the compressor, so that the troublesome operation of manually releasing and separating the steel wire slings is eliminated, and the use is convenient and labor-saving. 100331 Further, the positioning frames 6 include guide rollers 601 and insertion rods 602; a top end of each of the two positioning frames 6 is provided with one guide roller 601 in a supported manner; a middle cross-brace connecting rod of each of the two positioning frames 6 is upwards welded and supported with one insertion rod 602; and the two insertion rods 602 pass through head end sections of the two T-shaped insertion rods 3. The insertion rods 602 can be inserted to the T-shaped insertion rods 3 to position the T-shaped insertion rods in a forwards sliding state (as shown in FIG. 5). Furthermore, when the compressor is supported and clamped, the two ends of the rotating shaft of the compressor will downwards press the two guide rollers 601 to enable the two positioning frames 6 and the two insertion rods 602 to slide down to release the two T-shaped insertion rods 3. After the two T-shaped insertion rods 3 are released, the two T-shaped insertion rods can automatically slide to the outside under the pushing of the springs to thread off the steel wire slings; the two horizontal sliding plates 502 are pushed to slide down to drive the two groups of L-shaped hook rods 4 to automatically swing and be hooked to the rotating shaft of the compressor. Therefore, the step of manually swinging the two groups of L-shaped hook rods 4 is eliminated, so that the positioning flow for the compressor is simplified, and the use operation is quick and simple.

100341 Further, one groove is formed in a middle position of each of the two supporting bowls 5, and the two guide rollers 601 slide down to be embedded into the two grooves. The two guide rollers 601 and the shaft rollers at the top ends of the four L-shaped hook rods 4 are in rolling contact with the rotating shaft of the compressor, which can effectively reduce abrasion of the rotating shaft.

100351 Working principle: After the two T-shaped insertion rods 3 are released, the springs on them rebound and push the two semicircular push rings 301 to slide to the outside to thread off the steel wire slings at the two ends of the rotating shaft of the compressor, so that the troublesome operation of manually releasing and separating a steel wire rope is eliminated, and the use is convenient and labor-saving. By means of the trapezoid top blocks 302, the T-shaped insertion rods 3 can downwards push the trapezoid positioning blocks 503 and the horizontal sliding plate 502 when they are released and slide to the outside, so as to provide a swing driving force for the L-shaped hook rod 4. The two L-shaped hook rods 4 and the two push rods at the two ends of the horizontal sliding plates 502 jointly form one double-connecting-rod top slide swing mechanism. By this mechanism, the two L-shaped hook rods 4 can be driven to inwards rotate and be hooked to the rotating shaft of the compressor by only downwards pushing the horizontal sliding plates 502. The two groups of hook rods 4 can hook and position the rotating shaft of the compressor to avoid the compressor from being separated from the two supporting bowls 5 in a rotatable threading process. The insertion rods 602 can be inserted to the T-shaped insertion rods 3 to position the T-shaped insertion rods in a forwards sliding state (as shown in FIG. 5). When the compressor is supported and clamped, the two ends of the rotating shaft of the compressor will downwards press the two guide rollers 601 to enable the positioning frames 6 and the two insertion rods 602 to slide down to release the two T-shaped insertion rods 3; after the two T-shaped insertion rods 3 are released, the two T-shaped insertion rods can automatically slide to the outside under the pushing of the springs to thread off the steel wire slings; the two horizontal sliding plates 502 are pushed to slide down to drive the two groups of L-shaped hook rods 4 to automatically rotate and be hooked to the rotating shaft of the compressor. Therefore, the step of manually swinging the two groups of L-shaped hook rods 4 is eliminated, so that the positioning flow for the compressor is simplified, and the use operation is quick and simple. The two guide rollers 601 and the shaft rollers at the top ends of the four L-shaped hook rods 4 are in rolling contact with the rotating shaft of the compressor, which can effectively reduce abrasion of the rotating shaft.

100361 For those skilled in the art, it is apparent that the present disclosure is not limited to the details of the demonstrative embodiments mentioned above, and that the present disclosure can be realized in other specific forms without departing from the spirit or basic features of the present disclosure. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present disclosure is defined by the appended claims rather than the above description. Therefore, all changes falling within the meanings and scope of equivalent elements of the claims are intended to be included in the present disclosure. No drawing markings in claims shall be deemed to limit the claims involved.

Claims

WHAT IS CLAIMED IS: 1. A centering rotating device for assembling a high-pressure compressor of an aero-engine, comprising a base (1), wherein the base (1) comprises two supporting clamping plates (101); the entire base (1) is of an elongated rectangular structure; a row of bottom fixing plates are welded at an inside bottom of the base at equal intervals; a sliding chute is formed in each of left and right side rods of the base (1); a bracket (2) is slidably mounted in the two sliding chutes; a supporting table is supported and welded on a left half section of the base (1); the two supporting clamping plates (101) are symmetrically welded on the supporting table; the two supporting clamping plates (101) are used for supporting and carrying an engine casing; the bracket (2) comprises two L-shaped supporting rods (201) and cross-brace axles (202); the entire bracket (2) is formed by welding a bottom rectangular supporting frame and the two L-shaped supporting rods (201) symmetrically welded at a top end; two rows of cross-brace axles (202) are symmetrically welded on a bottom plate of the rectangular supporting frame; one roller is sleeved at a head end of each of the two rows of cross-brace axles (202), and the two rows of rollers are correspondingly fitted to the sliding chutes on the left and right parts on the base (1); a head end of each of the two L-shaped supporting rods (201) is welded with one supporting bowl (5) in an upwards supporting manner; a rotating shaft of the compressor is clamped on the left and right supporting bowls (5); a top end of each of the two L-shaped supporting rods (201) is pushed by springs to be inserted with one T-shaped insertion rod (3) in a penetrating manner; front half sections of the two T-shaped insertion rods (3) pass through supporting mounting plates of the two supporting bowls (5); two shaft rods are symmetrically welded on the supporting mounting plates of the two supporting bowls (5), one group of L-shaped hook rods (4) are sleeved and mounted on each of the left and right groups of shaft rods; the supporting bowls (5) comprise vertical support positioning shafts (501); inner sides of the supporting and mounting plates at the bottoms of the two supporting bowls (5) are symmetrically welded with the two vertical support positioning shafts (501); and each of upper and lower forwards protruding mounting supporting plates of the two vertical support positioning shafts (501) is pushed by a spring to be vertically inserted with one rectangular positioning frame (6) in a penetrating manner.
2. The centering rotating device for assembling the high-pressure compressor of the aero-engine according to claim 1, wherein each T-shaped insertion rod (3) comprises a semicircular push ring (301); a front half section of each of the two T-shaped insertion rods (3) is welded with one semicircular push ring (301) in a supported manner; and when the two T-shaped insertion rods (3) slide forwards, the two semicircular push rings (301) are in contact with the two supporting bowls (5) in an abutting manner.
3. The centering rotating device for assembling the high-pressure compressor of the aero-engine according to claim 1, wherein the T-shaped insertion rods (3) further comprise trapezoid top blocks (302); a head end of each T-shaped insertion rod (3) is provided with one trapezoid top block (302); and the two trapezoid top blocks (302) are slidably located at inside ends of the two supporting bowls (5)
4. The centering rotating device for assembling the high-pressure compressor of the aero-engine according to claim 1, wherein a top end of each of the four hook rods (4) is rotatably provided with one shaft roller; and the two groups of hook rods (4) are mounted oppositely and are oppositely rotatably hooked to upper half parts of two ends of the rotating shaft of the compressor.
5. The centering rotating device for assembling the high-pressure compressor of the aero-engine according to claim 1, wherein the supporting bowls (5) further comprise horizontal sliding plates (502) and trapezoid positioning blocks (503); each of the two vertical support positioning shafts (501) is pushed by a spring to be slidably provided with one horizontal sliding plate (502); one trapezoid positioning block (503) is welded and fixed in the middle of a top end of each horizontal sliding plate (502); and the trapezoid top blocks (302) are in contact with slopes of the trapezoid positioning blocks (503) in an abutment manner.
6. The centering rotating device for assembling the high-pressure compressor of the aero-engine according to claim 1, wherein one sliding chute is formed in a lower half section of each of the left and right groups of L-shaped hook rods (4); two ends of the two horizontal sliding plates (502) are symmetrically welded with two push rods; and the four push rods are in slidable fit with the sliding chutes on the lower half sections of the four L-shaped hook rods (4) in a penetrating manner.
7. The centering rotating device for assembling the high-pressure compressor of the aero-engine according to claim 1, wherein the positioning frames (6) comprise guide rollers (601) and insertion rods (602); a top end of each of the two positioning frames (6) is provided with one guide roller (601) in a supported manner; a middle cross-brace connecting rod of each of the two positioning frames (6) is upwards welded and supported with one insertion rod (602); and the two insertion rods (602) pass through head end sections of the two T-shaped insertion rods (3).
8. The centering rotating device for assembling the high-pressure compressor of the aero-engine according to claim 1, wherein one groove is formed in a middle position of each of the two supporting bowls (5), and the two guide rollers (601) slide down to be embedded into the two grooves.