Device and method for measuring open elastic ring

Abstract

The invention relates to the technical field of aero-engine manufacturing, in particular to a measuring device and method for an open elastic ring. The measuring device comprises a bottom plate, and a first support and a second support are arranged on the bottom plate. The first support and the second support are oppositely arranged at an interval; first supporting blocks are integrally formed at the two ends of the top face of the first support. A stop block is further arranged on the top face of the first support and located between the two first bearing blocks. Second supporting blocks are integrally formed at the two ends of the top face of the second support. A sliding groove is formed in the bottom plate, a dynamometer mounting seat is mounted on the sliding groove in a sliding manner, and a dynamometer is mounted on the dynamometer mounting seat; a threaded push rod mechanism is arranged on the bottom plate and is used for pushing the dynamometer mounting seat to slide on the sliding chute; two sliding groove seats are arranged on the bottom plate; a sliding stop block is installed on one sliding groove base in a sliding mode. A sliding reading block is installed on the other sliding groove seat in a sliding mode, and a ruler is arranged on the sliding reading block.

Description

Technical Field

[0001] The invention relates to the technical field of aeroengine manufacturing, and in particular to a measuring device and method for an open elastic ring. Background Art

[0002] Combination Figure 1 , Figure 2 The figure shows a schematic diagram of the structure of an open elastic ring in an aircraft engine. The open elastic ring has an opening. During use, a certain force F needs to be applied in the diameter direction at 90° to the opening to measure whether the size δ of the opening meets the requirements under the force F.

[0003] Since the cross-sectional size of this type of elastic ring is very small, it is difficult to fix, resulting in difficulty in measurement. Therefore, it is urgent to provide a measuring device and method for an open elastic ring. Summary of the invention

[0004] The main purpose of the present invention is to provide a measuring device and method for an open elastic ring, aiming to solve the above technical problems.

[0005] To achieve the above-mentioned purpose, on the one hand, the present invention proposes a measuring device for an open elastic ring, comprising a base plate, on which a first support and a second support are arranged; the first support and the second support are arranged relatively spaced apart; a first supporting block is integrally formed at both ends of the top surface of the first support; a stopper is also arranged on the top surface of the first support, and the stopper is located between the two first supporting blocks; a second supporting block is integrally formed at both ends of the top surface of the second support; a slide groove is arranged on the base plate, and a dynamometer mounting seat is slidably mounted on the slide groove, and a dynamometer is mounted on the dynamometer mounting seat; a threaded push rod mechanism is arranged on the base plate, for pushing the dynamometer mounting seat to slide on the slide groove; two slide groove seats are arranged on the base plate; a sliding stopper is slidably mounted on one of the slide groove seats; a sliding reading block is slidably mounted on the other slide groove seat, and a scale is arranged on the sliding reading block.

[0006] Preferably, the two slide slot seats are arranged relatively spaced apart, and the connecting line of the two slide slot seats is perpendicular to the connecting line of the first support and the second support; the long direction of the slide slot on the bottom plate is perpendicular to the connecting line of the two slide slot seats.

[0007] Preferably, a first locking nut is screwed onto the sliding stop block; a second locking nut is screwed onto the sliding reading block; and the lower ends of the first locking nut and the second locking nut can be tightened onto the corresponding slide slot seats, respectively.

[0008] Preferably, the threaded push rod mechanism includes a screw and a mounting plate; a slot is provided at the tail of the dynamometer mounting seat; the mounting plate is mounted on the side of the base plate by screws; the screw is screwed onto the mounting plate, and the screw is clamped into the slot at the tail of the dynamometer mounting seat after passing through the mounting plate.

[0009] Preferably, a T-slot is provided on the slide seat; a first T-block is integrally formed on the sliding stopper; a second T-block is integrally formed on the sliding reading block; the first T-block of the sliding stopper and the second T-block of the sliding reading block are respectively slidably matched with the corresponding T-slots on the slide seat.

[0010] Preferably, height limiting blocks are respectively installed on the top surfaces of the first supporting block and the second supporting block by screws to limit the axial position of the open elastic ring to be measured.

[0011] Preferably, the scale is a centrosymmetric scale, and the zero mark of the scale is located at the middle position.

[0012] Preferably, the measuring device also includes a positioning plate; positioning protrusions are respectively arranged at the four corners of the lower surface of the positioning plate; a positioning arc surface is arranged on each positioning protrusion; the positioning arc surfaces of the four positioning protrusions are on the same circumference, and are used to be clamped on the outer circumference of the open elastic ring to be measured; two pins are matched with the positioning plate; a positioning notch is arranged on the positioning plate; a handle is arranged on the top surface of the positioning plate; bushings are respectively arranged on the first support and the second support; the lower ends of the two pins can be respectively inserted into the bushings of the first support and the second support.

[0013] On the other hand, the present invention also provides a method for measuring an open elastic ring, using the above-mentioned measuring device, comprising the following steps:

[0014] S1, clamping the open elastic ring to be tested on the positioning arc surfaces of the four positioning protrusions of the positioning plate, and aligning the opening of the open elastic ring to be tested with the positioning notch on the positioning plate;

[0015] S2. Use the handle on the positioning plate to lift the positioning plate with the open elastic ring to be measured and place it on the measuring device, so that the two first support blocks of the first support and the two second support blocks of the second support are supported on the lower end surface of the open elastic ring to be measured; and the positioning notch on the positioning plate is aligned with the sliding reading block;

[0016] S3, push the two latches on the positioning plate downward so that the lower ends of the two latches are respectively inserted into the bushings of the first support and the second support;

[0017] S4, using the threaded push rod mechanism to push the dynamometer mounting seat to slide on the slide groove, so that the push rod of the dynamometer abuts against the outer peripheral surface of the elastic ring of the opening to be measured, and continuing to use the threaded push rod mechanism to drive the dynamometer to move in the direction of the second support, so that the reading displayed by the dynamometer is within the required value range;

[0018] S5, after the sliding block is pushed to move in the slide seat and contacts the outer peripheral surface of the elastic ring of the opening to be measured, the sliding block is locked;

[0019] S6. After the sliding reading block is pushed to move in the slide seat and contacts the opening of the opening elastic ring to be measured, the sliding reading block is locked, and the size of the opening of the opening elastic ring to be measured is measured using the ruler on the sliding reading block.

[0020] Preferably, in step S2, after the measured opening elastic ring is placed on the top surfaces of the two first supporting blocks and the two second supporting blocks, height limit blocks are respectively installed on the top surfaces of the first supporting blocks and the second supporting blocks by screws to limit the axial position of the measured opening elastic ring, and the height limit blocks only contact with the top surface of the measured opening elastic ring, and there is no clamping force.

[0021] Due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows:

[0022] (1) By adopting the measuring device and method provided by the present invention, a certain force can be applied to the open elastic ring, and the size of the opening of the open elastic ring under the force can be quickly measured.

[0023] (2) The measuring device provided by the present invention has a simple structure and is convenient and quick to measure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0025] Figure 1 It is a front view of an open elastic ring in an aero-engine;

[0026] Figure 2 for Figure 1 Partial view from the middle A direction;

[0027] Figure 3 A main cross-sectional view of the measuring device provided by the present invention;

[0028] Figure 4A top view of the measuring device provided by the present invention;

[0029] Figure 5 It is a front view of the slide seat in the present invention;

[0030] Figure 6 is a schematic diagram of a sliding stopper in the present invention;

[0031] Figure 7 It is a front view of the sliding reading block in the present invention;

[0032] Figure 8 It is a right side view of the sliding reading block in the present invention;

[0033] Fig. 9 It is a top view of the positioning plate in the present invention.

[0034] Explanation of the accompanying drawings: 1. Base plate; 2. First support; 2a. First supporting block; 2b. Stop block; 3. Height limit block; 4. Slide seat; 4a. T-slot; 5. Sliding stop block; 5a. First T-block; 6. Dynamometer; 7. Dynamometer mounting seat; 7a. Notch; 8. Mounting plate; 9. Second support; 9a. Second supporting block; 10. Sliding reading block; 10a. Second T-block; 10b. Ruler; 11. Positioning plate; 11a. Positioning protrusion; 11b. Positioning arc surface; 11c. Positioning notch; 12. Latch; 13. Bushing; 14. Handle; 15. First locking nut; 16. Screw; 17. First screw; 18. Cylindrical pin; 19. Second screw; 20. Second locking nut. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] Combination Figure 1 , Figure 2 The figure shows a schematic diagram of the structure of an open elastic ring in an aircraft engine, and the open elastic ring has an opening. During use, a certain force F needs to be loaded in the diameter direction at 90° to the opening, and the size δ of the opening under the force F is measured to see whether it meets the requirements. The outer peripheral surface of the open elastic ring is a stepped surface, including a cylindrical surface a and a cylindrical surface b.

[0039] Combination Figures 3 to 9 As shown, on the one hand, this embodiment provides a measuring device for an open elastic ring, comprising a base plate 1, on which a first support 2 and a second support 9 are arranged; the first support 2 and the second support 9 are arranged relatively spaced apart; a first supporting block 2a is integrally formed at both ends of the top surface of the first support 2; a stopper 2b is also arranged on the top surface of the first support 2, and the stopper 2b is located between the two first supporting blocks 2a; a second supporting block 9a is integrally formed at both ends of the top surface of the second support 9; a slide groove 1a is arranged on the base plate 1, the long direction of the slide groove 1a is perpendicular to the second support 9, and the slide groove 1a is located at one side of the second support 9. A dynamometer mounting seat 7 is slidably mounted on the slide groove 1a, and a dynamometer 6 is mounted on the dynamometer mounting seat 7 by a first screw 17; a threaded push rod mechanism is arranged on the base plate 1 for pushing the dynamometer mounting seat 7 to slide on the slide groove 1a; two slide groove seats 4 are arranged on the base plate 1; a sliding stopper 5 is slidably mounted on one of the slide groove seats 4; a sliding reading block 10 is slidably mounted on the other slide groove seat 4, and a scale 10b is arranged on the sliding reading block 10.

[0040] Combination Figure 4 As shown, the two slide slot seats 4 are arranged relatively spaced apart, and the connecting line of the two slide slot seats 4 is perpendicular to the connecting line of the first support 2 and the second support 9 ; the long direction of the slide slot 1a on the bottom plate 1 is perpendicular to the connecting line of the two slide slot seats 4 .

[0041] Combination Figure 4As shown, a first locking nut 15 is screwed on the sliding stopper 5; a second locking nut 20 is screwed on the sliding reading block 10; the lower ends of the first locking nut 15 and the second locking nut 20 can be tightened on the corresponding slide seat 4 respectively.

[0042] Combination Figure 3 , Figure 4 As shown, the threaded push rod mechanism includes a screw rod 16 and a mounting plate 8; a notch 7a is provided at the tail of the dynamometer mounting seat 7; the mounting plate 8 is mounted on the side of the base plate 1 by screws; the screw rod 16 is screwed on the mounting plate 8, and the screw rod 16 passes through the mounting plate 8 and is clamped in the notch at the tail of the dynamometer mounting seat 7. By rotating the screw rod 16, the dynamometer mounting seat 7 can be driven to slide in the slide slot 1a, thereby driving the dynamometer 6 to move.

[0043] In this embodiment, the dynamometer 6 can be a ZMF-30 digital display push-pull dynamometer produced by Hemu Electronics Co., Ltd. The dynamometer 6 is a conventional existing device and will not be described in detail here.

[0044] Combination Figures 5 to 8 As shown, a T-shaped groove 4a is provided on the slide seat 4; a first T-shaped block 5a is integrally formed on the sliding stopper 5; a second T-shaped block 10a is integrally formed on the sliding reading block 10; the first T-shaped block 5a of the sliding stopper 5 and the second T-shaped block 10a of the sliding reading block 10 are respectively slidably matched with the corresponding T-shaped groove 4a on the slide seat 4.

[0045] Combination Figure 3 , Figure 4 As shown, height limiting blocks 3 are respectively installed on the top surfaces of the first supporting block 2a and the second supporting block 9a by screws to limit the axial position h of the open elastic ring to be measured.

[0046] Combination Figure 7 As shown, the scale 10b is a centrally symmetrical scale, and the zero mark of the scale 10b is located at the middle position.

[0047] Combination Figure 3 , Figure 4 and Fig. 9As shown, the measuring device also includes a positioning plate 11; positioning protrusions 11a are respectively arranged at the four corners of the lower surface of the positioning plate 11; a positioning arc surface 11b is arranged on each positioning protrusion 11a; the positioning arc surfaces 11b of the four positioning protrusions 11a are on the same circumference, and are used to be clamped on the outer circumference of the open elastic ring to be measured; two pins 12 are matched with the positioning plate 11; a positioning notch 11c is arranged on the positioning plate 11; a handle 14 is arranged on the top surface of the positioning plate 11; bushings 13 are respectively arranged on the first support 2 and the second support 9; the lower ends of the two pins 12 can be inserted into the bushings 13 of the first support 2 and the second support 9, respectively.

[0048] In this embodiment, a U-shaped groove is formed between the second supporting blocks 9a at both ends of the top surface of the second support 9. The U-shaped groove can give way to the dynamometer 6 to avoid interference with the dynamometer 6 during movement.

[0049] In this embodiment, the first support 2 and the second support 9 are both fixedly mounted on the base plate 1 by means of cylindrical pins 18 and screws.

[0050] On the other hand, this embodiment also provides a method for measuring an open elastic ring, using the above-mentioned measuring device, comprising the following steps:

[0051] S1. Clamp the open elastic ring to be tested on the positioning arc surfaces 11b of the four positioning protrusions 11a of the positioning plate 11, and align the opening of the open elastic ring to be tested with the positioning notch 11c on the positioning plate 11. Specifically, the positioning arc surfaces 11b of the four positioning protrusions 11a are clamped on the cylindrical surface a of the open elastic ring to be tested.

[0052] S2. Use the handle on the positioning plate 11 to lift the positioning plate 11 equipped with the open elastic ring to be measured and place it on the measuring device, so that the two first supporting blocks 2a of the first support 2 and the two second supporting blocks 9a of the second support 9 are jointly supported on the lower end surface c of the open elastic ring to be measured; and the positioning notch 11c on the positioning plate 11 is aligned with the sliding reading block 10.

[0053] S3. Push the two latches 12 on the positioning plate 11 downward so that the lower ends of the two latches 12 are inserted into the bushings 13 of the first support 2 and the second support 9 respectively.

[0054] S4. Use the threaded push rod mechanism to push the dynamometer mounting seat 7 to slide on the slide groove 1a, so that the push rod of the dynamometer 6 abuts against the outer peripheral surface of the measured opening elastic ring, specifically, the push rod of the dynamometer 6 abuts against the cylindrical surface b of the measured opening elastic ring. Continue to use the threaded push rod mechanism to drive the dynamometer 6 to move in the direction of the second support 9, so that the reading displayed by the dynamometer 6 is within the required value range; at this time, the measured opening elastic ring abuts against the stopper 2b of the first support 2. Specifically, by rotating the screw 16, the dynamometer mounting seat 7 can be driven to slide in the slide groove 1a, thereby driving the dynamometer 6 to move.

[0055] S5, after the sliding block 5 is pushed to move in the chute seat 4 and contacts the outer peripheral surface of the elastic ring of the opening to be measured, the sliding block 5 is locked. When locking the sliding block 5, the sliding block 5 can be locked by tightening the first locking nut 15 so that its lower end is respectively pressed against the corresponding chute seat 4.

[0056] S6. After the sliding reading block 10 is pushed to move in the chute seat 4 and contacts the opening of the opening elastic ring to be measured, the sliding reading block 10 is locked, and the size of the opening of the opening elastic ring to be measured is measured using the scale 10b on the sliding reading block 10. When locking the sliding reading block 10, the sliding reading block 10 can be locked by tightening the second locking nut 20 so that its lower end is respectively pressed against the corresponding chute seat 4.

[0057] In step S2, after the measured opening elastic ring is placed on the top surfaces of the two first supporting blocks 2a and the two second supporting blocks 9a, a height limit block 3 is installed on the top surfaces of the first supporting block 2a and the second supporting block 9a respectively by a second screw 19, which is used to limit the axial position of the measured opening elastic ring. The height limit block 3 only contacts with the top surface d of the measured opening elastic ring, and there is no clamping force.

[0058] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A measuring device for an open elastic ring, characterized in that: It comprises a bottom plate (1), on which a first support (2) and a second support (9) are arranged; the first support (2) and the second support (9) are arranged relative to each other and spaced apart; First support blocks (2a) are integrally formed at both ends of the top surface of the first support (2); a stop block (2b) is also provided on the top surface of the first support (2), and the stop block (2b) is located between the two first support blocks (2a); second support blocks (9a) are integrally formed at both ends of the top surface of the second support (9); A slide groove (1a) is provided on the base plate (1), a dynamometer mounting seat (7) is slidably mounted on the slide groove (1a), and a dynamometer (6) is mounted on the dynamometer mounting seat (7); a threaded push rod mechanism is provided on the base plate (1) for pushing the dynamometer mounting seat (7) to slide on the slide groove (1a); Two slide groove seats (4) are arranged on the bottom plate (1); a sliding stopper (5) is slidably mounted on one of the slide groove seats (4); a sliding reading block (10) is slidably mounted on the other slide groove seat (4), and a scale (10b) is arranged on the sliding reading block (10).

2. A measuring device for an open elastic ring as claimed in claim 1, characterized in that: The two slide slot seats (4) are arranged at a relative interval, and the connecting line of the two slide slot seats (4) is perpendicular to the connecting line of the first support (2) and the second support (9); the long direction of the slide slot (1a) on the bottom plate (1) is perpendicular to the connecting line of the two slide slot seats (4).

3. A measuring device for an open elastic ring as claimed in claim 1, characterized in that: A first locking nut (15) is screwed onto the sliding stopper (5); a second locking nut (20) is screwed onto the sliding reading block (10); the lower ends of the first locking nut (15) and the second locking nut (20) can be respectively tightened onto the corresponding slide slot seats (4).

4. A measuring device for an open elastic ring as claimed in claim 1, characterized in that: The threaded push rod mechanism comprises a screw rod (16) and a mounting plate (8); a notch (7a) is provided at the rear of the dynamometer mounting seat (7); the mounting plate (8) is mounted on the side of the base plate (1) by means of screws; the screw rod (16) is screwed onto the mounting plate (8), and the screw rod (16) is clamped into the notch at the rear of the dynamometer mounting seat (7) after passing through the mounting plate (8).

5. A measuring device for an open elastic ring as claimed in claim 1, characterized in that: A T-shaped groove (4a) is provided on the slide seat (4); a first T-shaped block (5a) is integrally formed on the sliding stopper (5); a second T-shaped block (10a) is integrally formed on the sliding reading block (10); the first T-shaped block (5a) of the sliding stopper (5) and the second T-shaped block (10a) of the sliding reading block (10) are respectively slidably matched with the T-shaped grooves (4a) on the corresponding slide seat (4).

6. A measuring device for an open elastic ring as claimed in claim 1, characterized in that: Height limiting blocks (3) are respectively installed on the top surfaces of the first supporting block (2a) and the second supporting block (9a) by means of screws, and are used to limit the axial position of the open elastic ring to be measured.

7. A measuring device for an open elastic ring as claimed in claim 1, characterized in that: The scale (10b) is a centrosymmetric scale, and the zero scale of the scale (10b) is located at the middle position.

8. A measuring device for an open elastic ring as claimed in claim 1, characterized in that: The measuring device also includes a positioning plate (11); positioning protrusions (11a) are respectively arranged at the four corners of the lower surface of the positioning plate (11); a positioning arc surface (11b) is arranged on each positioning protrusion (11a); the positioning arc surfaces (11b) of the four positioning protrusions (11a) are on the same circumference and are used for clamping on the outer circumference of the open elastic ring to be measured; two latches (12) are matchedly arranged on the positioning plate (11); a positioning notch (11c) is arranged on the positioning plate (11); a handle (14) is arranged on the top surface of the positioning plate (11); bushings (13) are respectively arranged on the first support (2) and the second support (9); the lower ends of the two latches (12) can be inserted into the bushings (13) of the first support (2) and the second support (9), respectively.

9. A method for measuring an open elastic ring, characterized in that: The measuring device according to claim 8 comprises the following steps: S1, clamping the open elastic ring to be tested on the positioning arc surface (11b) of the four positioning protrusions (11a) of the positioning plate (11), and aligning the opening of the open elastic ring to be tested with the positioning notch (11c) on the positioning plate (11); S2. Using the handle on the positioning plate (11), lift the positioning plate (11) equipped with the open elastic ring to be measured and place it on the measuring device, so that the two first supporting blocks (2a) of the first support (2) and the two second supporting blocks (9a) of the second support (9) are supported on the lower end surface of the open elastic ring to be measured; and the positioning notch (11c) on the positioning plate (11) is aligned with the sliding reading block (10); S3, push the two latches (12) on the positioning plate (11) downward, so that the lower ends of the two latches (12) are respectively inserted into the bushings (13) of the first support (2) and the second support (9); S4, using the threaded push rod mechanism to push the dynamometer mounting seat (7) to slide on the slide groove (1a), so that the push rod of the dynamometer (6) abuts against the outer peripheral surface of the elastic ring of the opening to be measured, and continuing to use the threaded push rod mechanism to drive the dynamometer (6) to move in the direction of the second support (9), so that the reading displayed by the dynamometer (6) is within the required value range; S5, after the sliding block (5) is pushed to move in the slide groove seat (4) and contacts the outer peripheral surface of the elastic ring of the opening to be measured, the sliding block (5) is locked; S6. After the sliding reading block (10) is pushed to move in the slide groove seat (4) and contacts the opening of the opening elastic ring to be measured, the sliding reading block (10) is locked, and the size of the opening of the opening elastic ring to be measured is measured using the scale (10b) on the sliding reading block (10).

10. A method for measuring an open elastic ring as claimed in claim 9, characterized in that: In step S2, after the open elastic ring to be measured is placed on the top surfaces of the two first support blocks (2a) and the two second support blocks (9a), height limit blocks (3) are respectively installed on the top surfaces of the first support blocks (2a) and the second support blocks (9a) by screws to limit the axial position of the open elastic ring to be measured. The height limit blocks (3) are only in contact with the top surface of the open elastic ring to be measured, and there is no pressing force.

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