CN210221462U - Station adjusting and acceptance testing tool and testing tool system for high-speed driving system - Google Patents

Abstract

The utility model discloses a transfer platform and examine and accept frock and test fixture system for being directed at high-speed actuating system transfers platform and examines and accept frock and contain pivot structure and workstation, the pivot structure with the workstation is connected, and is located one side of workstation, the workstation is used for fixing and adjusts the position of pivot structure makes the axle center of pivot structure is located same straight line with high-speed actuating system's axle center, the pivot structure pass through high-speed shaft coupling with high-speed actuating system connects, is used for detecting high-speed actuating system's stability. Compared with the prior art, the debugging acceptance inspection tool is reasonable in structural design, stable in structure, convenient to detach, safe and reliable, and can simulate to replace formal products and verify the reasonability and reliability of assembly of a high-speed driving system.

Description

Station adjusting and acceptance testing tool and testing tool system for high-speed driving system

Technical Field

The utility model relates to a liquid rocket engine field, in particular to a transfer platform acceptance tool and test fixture system for being directed at high-speed actuating system.

Background

With the rapid development of the aerospace industry, various technologies related to rockets also realize the rapid advance. In the field of aerospace engine ground tests, a plurality of important devices needing high-speed driving exist, and generally, the high-speed driving devices are required to be installed, debugged and tested in various performances after being produced, and can be put into use only after being tested to be qualified.

The installation and debugging of a high-speed driving system and a test bench, particularly whether the shafting installation and debugging of the whole system can meet the design requirement (the common coaxiality requirement is 0.02mm) is the primary condition for ensuring the stable and efficient operation of the whole system. On the premise that the system installation meets the design requirements, the performance of the high-speed driving system generally comprises technical indexes such as rotating speed, torque, vibration, noise and the like. At present, formal products are generally selected as assessment standards for tested products. These official products, especially the rotating assemblies or parts in the aerospace field, are generally complex in structure, long in processing cycle, and high in production cost. In the process of installation and debugging and performance testing, once abnormal conditions such as damage to products occur, the economic cost and the time cost can be greatly increased.

Therefore, the problem to be solved at present is to provide a debugging acceptance tool which has the advantages of reasonable design, stable structure, convenient disassembly, safety and reliability, can simulate to replace formal products, and can verify the reasonability and reliability of the assembly of a high-speed driving system.

Disclosure of Invention

The utility model aims at providing a transfer platform acceptance tool for being directed at high-speed actuating system has reasonable in design, stable in structure, convenient dismantlement, safe and reliable, simulation that can and replace formal product, verified advantages such as rationality and the reliability of high-speed actuating system assembly.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a transfer platform and examine and accept frock for being directed at high-speed actuating system, contains pivot structure and workstation, the pivot structure with the workstation is connected, and is located one side of workstation, the workstation is used for fixing and adjusts the position of pivot structure makes the axle center of pivot structure is located same straight line with high-speed actuating system's axle center, the pivot structure pass through high-speed shaft coupling with high-speed actuating system connects, is used for detecting high-speed actuating system's stability.

Preferably, the rotating shaft structure comprises a high-speed rotating shaft, a left end cover, a right end cover, a shell and an angular contact ball bearing, and the high-speed rotating shaft sequentially penetrates through the left end cover, the angular contact ball bearing and the right end cover; the angular contact ball bearing is positioned between the shell and the high-speed rotating shaft to be matched with the high-speed rotating shaft to rotate, two ends of the shell are respectively connected with the left end cover and the right end cover, the left end cover is used for being connected with a mounting flange of the workbench, and the right end cover is used for limiting the angular contact ball bearing along the outer end of the axial direction and the part far away from the high-speed rotating shaft.

Preferably, the angular contact ball bearing comprises a first bearing body and a second bearing body which are oppositely arranged along the same axis, and two ends of the first bearing body and the second bearing body in the axial direction are respectively limited by a boss of the high-speed rotating shaft and a locking bolt; the adjusting station acceptance tool further comprises a shaft sleeve, wherein the shaft sleeve is sleeved on the surface between the first bearing body and the second bearing body, and the two ends of the shaft sleeve are respectively tightly attached to the inner sides of the first bearing body and the second bearing body so as to limit the first bearing body and the second bearing body in the axial direction.

Preferably, a fixing hole is formed in the high-speed rotating shaft and located on one side, away from the first bearing body, of the second bearing body, and the locking nut is arranged in the fixing hole to limit the outer end, in the axial direction, of the second bearing body and the part, close to the high-speed rotating shaft, of the second bearing body.

Preferably, a wave spring is arranged between the housing and at least one of the first bearing body and the second bearing body

Preferably, the workbench comprises a bottom plate, a metal gasket and an adjustable bracket, wherein the metal gasket is positioned between the bottom plate and the adjustable bracket; the bottom plate is provided with uniform slideways, the lower end of the adjustable support is provided with a raised line penetrating through the metal gasket, one end of the raised line is used for being matched with the slideways, and the other end of the raised line is used for being in threaded connection with the adjustable support.

Preferably, the shell is fixed on the right end cover through a bolt, and a spring washer is arranged between the bolt and the outer side of the right end cover.

Preferably, a mounting seat is sleeved at one end, close to the left end cover, of the high-speed rotating shaft, and the dial indicator is fixed on the high-speed rotating shaft through the mounting seat.

The utility model also provides a test fixture system contains above and is used for examining the frock to high-speed actuating system's accent platform.

Compared with the prior art, the beneficial effects of the utility model are that: this kind of a transfer platform acceptance tool for being directed at high-speed actuating system comprises pivot structure and workstation, the pivot structure with the workstation is connected, and is located one side of workstation through the fixed position of adjusting the pivot structure of workstation, adjusts the height of pivot structure promptly, makes the axle center of pivot structure and high-speed actuating system's axle center are located same straight line, with the pivot structure pass through high-speed shaft coupling with high-speed actuating system connects, is used for detecting high-speed actuating system's stability, whole process avoids when taking place abnormal conditions, leads to the fact the damage to positive formula product, and this structure has reasonable in design, stable in structure, convenient dismantlement, safe and reliable, and the simulation that can be replaced the product, can verify the rationality and the reliability of high-speed actuating system formal assembly.

Drawings

FIG. 1 is a schematic cross-sectional view of the station adjusting acceptance tool for the high-speed driving system of the present invention;

FIG. 2 is a schematic cross-sectional view of the station adjusting acceptance tool and the high-speed coupling for the high-speed driving system of the present invention;

FIG. 3 is a left side view of the station adjusting acceptance tool for the high-speed driving system of the present invention;

FIG. 4 is a schematic cross-sectional view of the housing and the raised strips of the present invention;

FIG. 5 is a perspective view of the housing and the raised strips of the present invention;

FIG. 6 is a schematic structural view of the high-speed rotating shaft of the present invention;

fig. 7 is a bottom view of the metal gasket of the present invention;

FIG. 8 is a top view of the metal gasket of the present invention;

FIG. 9 is a perspective view of the shaft sleeve of the present invention;

FIG. 10 is a top view of the bottom plate of the present invention;

FIG. 11 is a perspective view of the mounting base of the present invention;

fig. 12 is a perspective view of the spring washer of the present invention;

fig. 13 is a top view of the spring washer of the present invention;

FIG. 14 is a perspective view of a single wave spring of the present invention;

fig. 15 is a schematic cross-sectional view of the waterproof layer and the bottom plate of the present invention.

Description of reference numerals:

1 left end cover of workbench 2

3 fixed hole 4 wave spring

5 shaft sleeve 6 shell

7 spring washer 8 bolt

9 high-speed rotating shaft 10 right end cover

11 locking bolt 12 high-speed coupling

13 high-speed drive system of high-speed torque meter 14

15 mounting seat 16 output shaft end of high-speed driving system

17 waterproof layer 18 boss

19 first bearing body 20 second bearing body

21 raised strip 22 main fixing hole

23 connecting hole 24 percent meter

25 expansion bolt with colloidal layer 26

27 bottom plate 28 metal gasket

29 Adjustable support 30 Rib

31 slide way

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the spirit of the present invention will be described in detail with reference to the accompanying drawings, and any person skilled in the art can change or modify the techniques taught by the present invention without departing from the spirit and scope of the present invention after understanding the embodiments of the present invention.

The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention. Additionally, the same or similar numbered elements/components used in the drawings and the embodiments are used to represent the same or similar parts.

As used herein, the terms "first," "second," …, etc. do not denote any order or sequential importance, nor are they used to limit the invention, but rather are used to distinguish one element from another or from another element or operation described in the same technical language.

With respect to directional terminology used herein, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology used is intended to be illustrative and is not intended to be limiting of the present teachings.

As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.

As used herein, "and/or" includes any and all combinations of the described items.

As used herein, the terms "substantially", "about" and the like are used to modify any slight variation in quantity or error that does not alter the nature of the variation. Generally, the range of slight variations or errors modified by such terms may be 20% in some embodiments, 10% in some embodiments, 5% in some embodiments, or other values. It should be understood by those skilled in the art that the aforementioned values can be adjusted according to actual needs, and are not limited thereto.

Certain words used to describe the present application are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the present application.

Please refer to fig. 1 and fig. 2, an embodiment of the present invention provides a tuning acceptance tool for a high-speed driving system, which comprises a rotating shaft structure and a workbench 1, wherein the rotating shaft structure is connected to the workbench 1 and located at one side of the workbench 1 (according to the position shown in fig. 1), the workbench 1 is used for fixing and adjusting the position of the rotating shaft structure, so that the shaft center of the rotating shaft structure and the shaft center of the high-speed driving system 14 are located on the same straight line, and the rotating shaft structure is connected to the high-speed driving system 14 through a high-speed coupler 12 for detecting the stability of the high-speed driving system 14.

Specifically, the method comprises the following steps: this kind of a transfer platform acceptance tool for being directed at high-speed actuating system comprises pivot structure and workstation 1, and the pivot structure is connected with workstation 1, and is located one side of workstation 1, and workstation 1 is used for fixing and adjusts the position of pivot structure (the workstation can adjust the height of pivot structure promptly) for pivot structure axle center is located same straight line with high-speed actuating system 14's axle center. To test the performance of the high speed drive system, the shaft structure may be coupled to the high speed drive system 14 via the high speed coupling 12 to test the stability of the high speed drive system 14. The utility model discloses transfer platform acceptance inspection frock through replacing formal product with the pivot structure, can avoid the abnormal conditions in the test process to cause the damage to the product, and this structural design is reasonable, and stable in structure conveniently dismantles, and safe and reliable can simulate and replace formal product to verify the rationality and the reliability of high-speed actuating system assembly reliably.

In the present embodiment, as shown in fig. 1, 2, 4, 5, 6, and 9, the spindle structure includes a high-speed rotation shaft 9, a left end cap 2, a right end cap 10, a sleeve 5, a housing 6, and an angular ball bearing. The sleeve 5 and the angular contact ball bearing are located between the housing 6 and the high-speed rotation shaft to cooperate with the high-speed rotation shaft 9 for rotation. The two ends of the shell 6 are respectively connected with the left end cover 2 and the right end cover 10. The left end cover 2 is used for being connected with a mounting flange of the workbench 1, and the right end cover 10 is used for limiting the outer end of the angular contact ball bearing along the axial direction and is far away from the high-speed rotating shaft 9. The angular contact ball bearing comprises a first bearing body 19 and a second bearing body 20 which are oppositely arranged along the same axis; both ends of the first bearing body 19 and the second bearing body 20 in the axial direction are respectively limited by the boss 18 and the lock nut 11 of the high-speed rotating shaft 9. The high-speed rotating shaft 9 penetrates through the left end cover 2, the first bearing body 19, the second bearing body 20 and the right end cover 10 in sequence. The shaft sleeve 5 is sleeved on the surface of the high-speed rotating shaft 9, the shaft sleeve 5 is located between the first bearing body 19 and the second bearing body 20, and two ends of the shaft sleeve 5 respectively cling to the first bearing body 19 and the second bearing body 20 (for example, two ends of the shaft sleeve 5 along the axial direction respectively abut against the parts of the inner sides of the bearing bodies close to the high-speed rotating shaft 9) so as to limit the distance between the first bearing body 19 and the second bearing body 20 along the axial direction. For example, the high-speed rotating shaft 9 is provided with a fixing hole 3, the fixing hole 3 is located on one side of the second bearing body 20 away from the first bearing body 19, the fixing hole 3 is provided with a locking bolt 11, and the locking bolt 11 can limit the position of the second bearing body 20 from the side of the second bearing body 20 away from the first bearing body 19. For example, the lock bolt 11 abuts on a portion of the second bearing body 20 near the high-speed rotation shaft 9.

As shown in fig. 1, 6 and 9, on the one hand, in order to prevent impurities from appearing on the surface of the high-speed rotating shaft 9 and affecting the rotation of the high-speed rotating shaft 9, a bushing 5 is provided on the surface of the high-speed rotating shaft 9. On the other hand, in order to position the first bearing body 19 and the second bearing body 20 in the axial direction with respect to each other, the shaft sleeve 5 may be fitted over the surface of the high-speed rotation shaft 9 between the first bearing body 19 and the second bearing body 20, and both ends of the shaft sleeve are respectively brought into close contact with the end surfaces of the first bearing body 19 and the second bearing body 20 which are close to each other. In order to avoid a displacement of the second bearing body 20 during rotation, a fastening hole is provided in the high-speed rotary shaft 9, wherein the fastening hole is located on the side of the second bearing body 20 remote from the first bearing body 19. The fixing hole is provided with a locking bolt 11, the locking bolt 11 limits the outer end of the second bearing body 20 in the axial direction and a part close to the high-speed rotating shaft 9, and the locking bolt 11 is fixed through a nut.

In particular, as shown in fig. 1, 4, 5, 6, 7 and 14, a wave spring 4 is provided between at least one of the first bearing body 19 and the second bearing body 20 and the housing 6. For example, in order to connect the first bearing body 19 to the high-speed rotation shaft 9 tightly, the housing 6 is provided in a cylindrical structure with both ends communicating with each other. For example, the housing 6 is provided with a protruding strip 21 inside, the protruding strip 21 and the inner surface of the housing 6 are closely attached to each other, and the height of the housing 6 is larger than the height of the protruding strip 21 (in the orientation shown in fig. 5). It should be noted that the wave spring 4 is disposed between the boss 18 and the protruding strip 21, and the wave spring 4 plays a role of shock absorption on one hand, and effectively protects the first bearing body 19. On the other hand, pre-tightening force is applied to the first bearing body 19 during installation, so that the first bearing body 19 is prevented from inclining, and the first bearing body 19 and the high-speed rotating shaft 9 are connected more tightly. In particular, in the present embodiment, in order to make the wave spring 4 more elastic, a plurality of wave springs 4 may be connected in series.

To facilitate adjustment of the pivot structure, the table 1 is composed of a base plate 27, a metal washer 28 and an adjustable bracket 29, as shown in fig. 3, 8 and 10. The bottom plate 27 is provided with an even slide rail 31, the lower end of the adjustable bracket 29 is provided with a convex strip 30, the convex strip 30 penetrates through the metal gasket 28, one end of the convex strip 30 is used for being matched with the slide rail 31, and the other end of the convex strip 30 is provided with threads, so that the convex strip 30 is screwed into the adjustable bracket 29 through the threads at the other end of the convex strip to be fixed with each other. For example, after the protruding strip 30 passes through the metal gasket, the protruding strip 30, the metal gasket 28 and the adjustable bracket 29 may be tightly connected to each other by further screwing a nut into the thread and pressing the metal gasket on the side of the metal gasket close to the adjustable bracket 29. The metal gasket 28 is positioned between the bottom plate 27 and the adjustable bracket 29, and the height of the adjustable bracket can be adjusted by increasing or decreasing the metal gasket. Because the bottom plate is provided with the uniform slide way, the lower end of the adjustable support 29 is provided with the convex strip 30, the convex strip 30 is matched with the slide way, the convex strip 30 can move along the slide way 31, the convex strip 30 is fixedly connected with the adjustable support 29 through the nut, and then the convex strip 30 can move along the sliding motion to drive the adjustable support 29 to move along the axis direction of the rotating shaft mechanism in the horizontal direction, so that the adjustability of the inspection and acceptance tool of the adjusting table is improved. For example, in order to make the connection of the bottom plate 27 to the ground more stable, an expansion bolt 26 is connected to a lower portion of the bottom plate 27.

It should be further mentioned that, as shown in fig. 7 and 8, in order to reduce vibration, a colloid layer 25 is provided under the metal pad 28, and the colloid layer 25 is adhesively bonded to the metal pad 28.

Further, as shown in fig. 1, 12 and 13, in order to tightly connect the housing 6 and the right end cap 10, the housing 6 is fixed to the right end cap 10 by the bolt 8. Specifically, the housing 6 is disposed in the axial direction, and the right end cap 10 has an annular mounting surface which is brought into surface contact with an end surface of the housing 6 and fixed by the bolts 8 passing through the annular end surface and entering the housing 6. In addition, the inner side of the right end cover 10 is further provided with an annular limiting part, and after the shell 6, the second bearing body 20 and the right end cover are installed in place, the annular limiting part just abuts against the outer diameter part of the outer end of the second bearing body 20, so that the second bearing body 20 is limited on one hand, and the influence on the measurement effect due to the inclination of the bearing in the rotation process is avoided on the other hand. It should be noted that the aforementioned locking bolt 11 can abut against the inner diameter portion of the outer end of the second bearing body 20, so that the second bearing body 20 is reliably limited by the annular limiting portion and the locking nut, and the rotation stability thereof is improved.

It is particularly noted that, in order to reduce the vibration of the bolt 8 from the right end cap 10, a spring washer 7 is provided between the bolt 8 and the outside of the right end cap 10, wherein the spring washer 7 plays a role of shock absorption.

It should be noted that, as shown in fig. 1, fig. 2 and fig. 11, for convenience of adjustment and accurate measurement of the coaxiality of the high-speed driving system, a dial indicator 24 may be disposed at one end of the high-speed rotating shaft 9 close to the left end cap 2. For example, the dial indicator 24 can be fixed by fitting on the upper mount 15 of the high-speed rotation shaft 9. One end of the dial indicator 24 is used for connecting the high-speed driving system 14, and the position of the adjustable bracket 13 and the position of the rotating shaft structure are adjusted through data measured by the dial indicator 4, so that the rotating shaft structure and the axis of the high-speed driving system 14 are on the same straight line. In order to stabilize the structure of the mounting seat 15, the appearance of the mounting seat 15 is designed to be a rectangular parallelepiped structure, a main fixing hole 22 and a connecting hole 23 are arranged on the mounting seat 15, and the hole opening direction of the connecting hole 23 is perpendicular to the hole opening direction of the main fixing hole 22.

As shown in fig. 2, in order to better measure the performance of the rotating shaft in the high-speed driving system 14, a high-speed torque meter 13 may be disposed on the high-speed driving system 14, and one end of the high-speed torque meter 13 is connected to an output shaft end 16 of the high-speed driving system.

As shown in fig. 15, in order to prevent water vapor from corroding the bottom plate 27 and prolong the service life of the bottom plate 27, the waterproof layer 17 is arranged below the bottom plate 27, the waterproof layer 17 is connected with the bottom plate 27 in an adhesive manner, and the waterproof layer 18 is prevented from falling off from the bottom plate 27, so that the connection between the waterproof layer and the bottom plate is tighter and the fixation is firmer.

It should be noted that the shape of the protruding strip 30 may be a hexagon bolt, a T-shaped bolt, etc., which are not illustrated herein.

The utility model also provides a test fixture system contains above and is used for examining the frock to high-speed actuating system's accent platform.

In the present embodiment, it is worth mentioning that the connection means includes a screw connection, welding, riveting, etc., and will not be described in detail herein.

The foregoing is only an illustrative embodiment of the present invention, and any equivalent changes and modifications made by those skilled in the art without departing from the spirit and principles of the present invention should fall within the protection scope of the present invention.

Claims (9)

1. The utility model provides a transfer platform acceptance tool for high-speed actuating system which characterized in that: contain pivot structure and workstation, the pivot structure with the workstation is connected, and is located one side of workstation, the workstation is used for fixing and adjusts the position of pivot structure makes the axle center of pivot structure is located same straight line with high-speed actuating system's axle center, the pivot structure be used for through high-speed shaft coupling with high-speed actuating system connects, is used for detecting high-speed actuating system's stability.

2. The debugging station acceptance tool for the high-speed driving system according to claim 1, characterized in that: the rotating shaft structure comprises a high-speed rotating shaft, a left end cover, a right end cover, a shell and an angular contact ball bearing, wherein the high-speed rotating shaft sequentially penetrates through the left end cover, the angular contact ball bearing and the right end cover; the angular contact ball bearing is positioned between the shell and the high-speed rotating shaft to be matched with the high-speed rotating shaft to rotate, two ends of the shell are respectively connected with the left end cover and the right end cover, the left end cover is used for being connected with a mounting flange of the workbench, and the right end cover is used for limiting the angular contact ball bearing along the outer end of the axial direction and the part far away from the high-speed rotating shaft.

3. The station adjusting and acceptance tool for the high-speed driving system according to claim 2, characterized in that: the angular contact ball bearing comprises a first bearing body and a second bearing body which are oppositely arranged along the same axis, and the two ends of the first bearing body and the second bearing body in the axial direction are respectively limited by a boss and a locking bolt of the high-speed rotating shaft; the adjusting station acceptance tool further comprises a shaft sleeve, wherein the shaft sleeve is sleeved on the surface between the first bearing body and the second bearing body, and the two ends of the shaft sleeve are respectively tightly attached to the inner sides of the first bearing body and the second bearing body so as to limit the first bearing body and the second bearing body in the axial direction.

4. The station adjusting and acceptance tool for the high-speed driving system according to claim 3, characterized in that: the high-speed rotating shaft is provided with a fixing hole, the fixing hole is located on one side, away from the first bearing body, of the second bearing body, and the fixing hole is provided with the locking bolt so as to limit the position of the outer end, along the axial direction, of the second bearing body and close to the high-speed rotating shaft.

5. The station adjusting and acceptance tool for the high-speed driving system according to claim 3, characterized in that: a wave spring is arranged between the shell and at least one of the first bearing body and the second bearing body.

6. The debugging station acceptance tool for the high-speed driving system according to claim 1, characterized in that: the workbench comprises a bottom plate, a metal gasket and an adjustable bracket, wherein the metal gasket is positioned between the bottom plate and the adjustable bracket; the adjustable support is characterized in that an even slide way is arranged on the bottom plate, a raised line penetrating through the metal gasket is arranged at the lower end of the adjustable support, one end of the raised line is used for being matched with the slide way, and the other end of the raised line is used for being in threaded connection with the adjustable support.

7. The station adjusting and acceptance tool for the high-speed driving system according to claim 2, characterized in that: the shell is fixed on the right end cover through a bolt, and a spring washer is arranged between the bolt and the outer side of the right end cover.

8. The station adjusting and acceptance tool for the high-speed driving system according to claim 2, characterized in that: one end of the high-speed rotating shaft, which is close to the left end cover, is sleeved with a mounting seat, and a dial indicator is fixed on the high-speed rotating shaft through the mounting seat.

9. The utility model provides a test fixture system which characterized in that: the adjusting station acceptance tool for the high-speed driving system, comprising any one of claims 1 to 8.

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