A rotor engagement detection tool

Abstract

The application provides a rotor engagement detection tool, and belongs to the technical field of rotating machinery detection, and comprises a bottom plate provided with two opposite rotor connecting seats; a first chuck and a second chuck are rotationally connected on the first rotor connecting seat; a third chuck and a fourth chuck are rotationally connected on the second rotor connecting seat; the first chuck and the second chuck are synchronously rotationally connected, and / or the third chuck and the fourth chuck are synchronously rotationally connected; the rotor engagement detection tool can connect the end portions of two to-be-detected rotors through the chucks on the rotor connecting seats, so that the two to-be-detected rotors are engaged with each other, then the operation end on the first chuck is rotated to make the two to-be-detected rotors rotate in engagement, and the axial clearances of the two to-be-detected rotors are measured in the process of engagement and rotation, so that the detection efficiency and the detection precision can be improved.

Description

Technical Field

[0001] This invention relates to the field of rotating machinery testing technology, and more specifically to a rotor meshing testing fixture. Background Technology

[0002] In rotating machinery, such as vacuum pumps and compressors, the rotors require high axial clearance after meshing. Therefore, the axial clearance of the rotors needs to be tested during meshing to ensure that the design requirements are met.

[0003] Currently, methods such as adapting to three-dimensional curved surface detection are used for inspection and assembly. This results in low inspection efficiency, complex operation, high requirements for operators, inconvenience for loading and unloading, and is not conducive to rapid operation and mass production, leading to high manufacturing costs. Summary of the Invention

[0004] Therefore, in order to solve the problem of improving the convenience of rotor meshing detection, the present invention provides a rotor meshing detection fixture.

[0005] To solve the above-mentioned technical problems, the present invention provides a rotor meshing detection fixture, comprising:

[0006] The base plate is equipped with two opposing rotor connecting seats;

[0007] A first chuck is rotatably connected to a first rotor connecting seat. The first chuck has a chuck end for connecting to a first rotor to be tested and an operating end for rotation operation.

[0008] The second chuck is rotatably connected to the first rotor connecting seat, and the second chuck is used to connect the end of the second rotor to be tested that meshes with the first rotor to be tested;

[0009] The third chuck is rotatably connected to the second rotor connecting seat. The third chuck is opposite to the first chuck and is used to connect the other end of the first rotor to be tested.

[0010] The fourth chuck is rotatably connected to the second rotor connecting seat. The fourth chuck is opposite to the second chuck and is used to connect the other end of the second rotor to be tested.

[0011] The first chuck and the second chuck are connected to rotate synchronously, and / or the third chuck and the fourth chuck are connected to rotate synchronously.

[0012] Optionally, the first rotor connecting seat and / or the second rotor connecting seat are slidably connected relative to each other on the base plate.

[0013] Optionally, the operating end of the first chuck is connected to a hand crank.

[0014] Optionally, the first chuck and the second chuck are connected by gear meshing.

[0015] Optionally, it further includes: a stop member connected to the first rotor connecting seat, which is used to engage the gears of the first chuck and / or the second chuck.

[0016] Optionally, the first chuck, the second chuck, the third chuck, and the fourth chuck are connected to the end of the rotor to be tested via a clamping structure.

[0017] Optionally, the clamping structure includes:

[0018] The elastic sleeve has a cavity in the middle for inserting the rotor to be tested;

[0019] An adjusting element is threaded onto the outside of the elastic sleeve. By screwing the adjusting element onto the elastic sleeve, the diameter of the receiving cavity of the elastic sleeve is adjusted to clamp the end of the rotor to be tested.

[0020] Optionally, it further includes: an intermediate pad, connected to the base plate and located between two opposing rotor connecting seats, the upper surface of the intermediate pad having a groove for supporting the rotor under test.

[0021] Optionally, the intermediate pad is slidably connected relative to the base plate.

[0022] Optionally, the rotational resistance between the first chuck and the first rotor connecting seat is less than the rotational resistance between the second chuck seat and the second rotor connecting seat;

[0023] And / or the rotational resistance of the third chuck to the first rotor connection seat is less than the rotational resistance of the fourth chuck to the second rotor connection seat.

[0024] The technical solution of this invention has the following advantages:

[0025] 1. The rotor meshing detection fixture provided by the present invention can connect the ends of two rotors to be tested respectively through the chuck on the rotor connecting seat, so that the two rotors to be tested mesh with each other. Then, by rotating the operating end on the first chuck, the two rotors to be tested are made to mesh and rotate with each other. During the meshing and rotation process, the axial clearance between the two rotors to be tested is measured, which can improve the detection efficiency and detection accuracy.

[0026] 2. The rotor meshing detection fixture provided by the present invention has a simple structure and lower manufacturing cost. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a perspective view of one embodiment of the meshing detection fixture provided in the embodiments of the present invention.

[0029] Figure 2 for Figure 1 Another perspective of the 3D view.

[0030] Figure 3 for Figure 1 The main view.

[0031] Figure 4 for Figure 3 A three-dimensional view of the first rotor connecting seat.

[0032] Figure 5 for Figure 4 Top sectional view.

[0033] Figure 6 for Figure 3 Top sectional view of the second rotor connecting seat.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Base plate; 2. First rotor connecting seat; 3. Second rotor connecting seat; 4. First rotor to be tested; 5. Second rotor to be tested; 6. First chuck; 7. Second chuck; 8. Third chuck; 9. Fourth chuck; 10. Hand crank; 11. Intermediate pad; 12. Brake block; 13. Long strip hole; 14. Elastic sleeve; 15. Adjusting component. Detailed Implementation

[0036] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] The rotor meshing detection fixture provided in this embodiment is used to detect the axial clearance between two meshing rotors.

[0041] like Figure 1 , Figure 2 The image shows a specific embodiment of the rotor meshing detection fixture provided in this example, comprising: a base plate 1, on which two opposing rotor connecting seats are disposed. A first chuck 6 and a second chuck 7 are disposed on the first rotor connecting seat 2. The first chuck 6 is rotatably connected to the first rotor connecting seat 2 and has a chuck end for connecting a first rotor to be tested 4 and an operating end for rotational operation. The second chuck 7 is rotatably connected to the first rotor connecting seat 2 and is used to connect the end of a second rotor to be tested 5 that meshes with the first rotor to be tested 4.

[0042] A third chuck 8 and a fourth chuck 9 are provided on the second rotor connecting seat 3. The third chuck 8 is rotatably connected to the second rotor connecting seat 3 and is opposite to the first chuck 6, used to connect the other end of the first rotor 4 to be tested. The fourth chuck 9 is rotatably connected to the second rotor connecting seat 3 and is opposite to the second chuck 7, used to connect the other end of the second rotor 5 to be tested.

[0043] like Figure 1 , Figure 2 As shown, in the rotor engagement detection fixture provided in this embodiment, the first chuck 6 and the second chuck 7 are synchronously rotatably connected, so that when the first chuck 6 rotates, the second chuck 7 is driven to rotate synchronously. Alternatively, as an alternative implementation, the third chuck 8 and the fourth chuck 9 can also be synchronously rotatably connected simultaneously or individually.

[0044] The rotor meshing detection fixture provided in this embodiment can connect the ends of two rotors to be tested respectively through the chuck on the rotor connecting seat, so that the two rotors to be tested mesh with each other. Then, by rotating the operating end on the first chuck 6, the two rotors to be tested are made to rotate in meshing. During the meshing rotation, the axial clearance between the two rotors to be tested is measured, which can improve the detection efficiency and detection accuracy.

[0045] like Figure 1 , Figure 2 As shown, in the rotor meshing detection fixture provided in this embodiment, the first rotor connecting seat 2 and the second rotor connecting seat 3 are slidably connected relative to each other on the base plate 1. Specifically, the base plate 1 has a groove extending along the line connecting the first rotor connecting seat 2 and the second rotor connecting seat 3. Slider blocks embedded in the groove are connected to the first rotor connecting seat 2 and the second rotor connecting seat 3 by fasteners. The sliders allow the two rotor connecting seats to move closer or further apart. Once the relative positions of the two rotor connecting seats are adjusted, the fasteners can lock the rotor connecting seats in their positions on the base plate 1. Alternatively, as an alternative implementation, only one rotor connecting seat may be allowed to slide relative to the other on the base plate 1.

[0046] like Figure 3 , Figure 4 As shown, in the rotor meshing detection fixture provided in this embodiment, the operating end of the first chuck 6 is connected to a hand crank 10. Specifically, the hand crank 10 can be clamped to the end of the first chuck 6 via a clamp. In addition, the first chuck 6 and the second chuck 7 are connected by gear meshing, thereby enabling the first chuck 6 and the second chuck 7 to rotate synchronously.

[0047] like Figure 4As shown, in the rotor meshing detection fixture provided in this embodiment, a stop is connected to the first rotor connecting seat 2. The stop is used to engage the gear of the first chuck 6 to lock the rotation of the first chuck 6, facilitating measurement. Alternatively, as an alternative implementation, the stop can also be used to lock the gear of the second chuck 7, or simultaneously lock the first chuck 6 and the second chuck 7. Specifically, the stop includes a brake block 12, the tip of which is adapted to insert into the tooth groove of the gear. The brake block 12 has an elongated hole 13 in the middle, through which a fastener passes and is connected to the first rotor connecting seat 2. By adjusting the fastener, the brake block 12 can slide along the elongated hole 13, thereby achieving locking and unlocking of the gear.

[0048] like Figure 5 , Figure 6 As shown, in the rotor meshing detection fixture provided in this embodiment, the first chuck 6, the second chuck 7, the third chuck 8, and the fourth chuck 9 are connected to the end of the rotor to be tested via a clamping structure. Specifically, the clamping structure includes an elastic sleeve 14 and an adjusting member 15 connected to the outside of the elastic sleeve 14. The elastic sleeve 14 has a receiving cavity in the middle for inserting the rotor to be tested. The adjusting member 15 is threaded to the outside of the elastic sleeve 14. By screwing the adjusting member 15 onto the elastic sleeve 14, the aperture of the receiving cavity of the elastic sleeve 14 can be adjusted to clamp the end of the rotor to be tested.

[0049] like Figure 3 As shown, in the rotor meshing detection fixture provided in this embodiment, an intermediate pad 11 is also connected to the base plate 1. The intermediate pad 11 is located between two opposing rotor connecting seats, and the upper surface of the intermediate pad 11 has a groove for supporting the rotor to be tested. Furthermore, the intermediate pad 11 is slidably connected to the base plate 1. Specifically, a slide rail for sliding the intermediate pad 11 is installed on the base plate 1, and a slider cooperating with the slide rail is installed at the bottom of the intermediate pad 11, mainly used for loading and unloading the rotor to be tested.

[0050] like Figure 5 , Figure 6 As shown, in the rotor meshing detection fixture provided in this embodiment, the rotational resistance between the first chuck 6 and the first rotor connecting seat 2 is less than the rotational resistance between the second chuck 7 and the second rotor connecting seat 3. This configuration prevents the second rotor 5 connected to the second chuck 7 from rotating, ensuring measurement accuracy.

[0051] Alternatively, as an alternative implementation, the rotational resistance between the third chuck 8 and the first rotor connecting seat 2 can be set to be less than the rotational resistance between the fourth chuck 9 and the second rotor connecting seat 3. Alternatively, both can be configured simultaneously. Specifically, this can be achieved by using rotating bearings with different resistances, or by using one rotating bearing and the other a sliding bearing, etc.

[0052] Working principle

[0053] The rotor to be tested is placed on the intermediate pad 11. The rotor and the intermediate pad 11 are manually moved to one end under the action of the guide rail, so that the end of the rotor to be tested is inserted into the chuck of the rotor connecting seat and fixed. When the meshing gap is detected, the brake block 12 is moved to unlock the chuck. The hand crank 10 is manually rotated to adjust the angle to be tested. Then the brake block 12 is moved to lock the chuck, thereby detecting the meshing gap of two rotors to be tested at different angles.

[0054] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A rotor engagement detection tool characterized by, The utility model relates to a rotator testing device, comprising: a base plate (1) provided with two opposite rotor connecting seats; a first chuck (6) rotatably connected to the first rotor connecting seat (2), the first chuck (6) having a chuck end for connecting a first rotor to be tested (4) and an operating end for rotation operation, the operating end being connected to a hand crank (10); a second chuck (7) rotatably connected to the first rotor connecting seat (2), the second chuck (7) being used for connecting an end of a second rotor to be tested (5) engaged with the first rotor to be tested (4); a third chuck (8) rotatably connected to the second rotor connecting seat (3), the third chuck (8) being opposite to the first chuck (6) and being used for connecting the other end of the first rotor to be tested (4); a fourth chuck (9) rotatably connected to the second rotor connecting seat (3), the fourth chuck (9) being opposite to the second chuck (7) and being used for connecting the other end of the second rotor to be tested (5); the first chuck (6) and the second chuck (7) are synchronously rotatably connected, and / or the third chuck (8) and the fourth chuck (9) are synchronously rotatably connected, and the first chuck (6) and the second chuck (7) are connected through gear engagement.

2. The rotor engagement detection tool of claim 1, wherein, The first rotor connecting seat (2) and / or the second rotor connecting seat (3) are slidably connected on the base plate (1).

3. The rotor engagement detection tool of claim 1, wherein Further comprising: a stopper connected to the first rotor connecting seat (2) and used for clamping the gears of the first chuck (6) and / or the second chuck (7).

4. The rotor engagement detection tool of claim 1, wherein The first chuck (6), the second chuck (7), the third chuck (8) and the fourth chuck (9) are connected to the end of the rotor to be tested through a clamping structure.

5. The rotor engagement detection tool of claim 4, wherein, The clamping structure comprises: a resilient sleeve (14) having a receiving cavity in the middle for inserting the rotor to be tested; an adjusting member (15) threadedly connected to the outside of the resilient sleeve (14), the aperture of the receiving cavity of the resilient sleeve (14) being adjusted by rotating the adjusting member (15) on the resilient sleeve (14) to clamp the end of the rotor to be tested.

6. The rotor engagement detection tool of claim 1, wherein Further comprising: a middle spacer block (11) connected to the base plate (1) and located in the middle of the two opposite rotor connecting seats, the upper surface of the middle spacer block (11) having a groove for supporting the rotor to be tested.

7. The rotor engagement detection tool of claim 6, wherein, The middle spacer block (11) is slidably connected on the base plate (1).

8. The rotor engagement detection tool of any one of claims 1-7, wherein, The rotation resistance of the first chuck (6) and the first rotor connecting seat (2) is less than the rotation resistance of the second chuck (7) and the second rotor connecting seat (3); and / or the rotation resistance of the third chuck (8) and the first rotor connecting seat (2) is less than the rotation resistance of the fourth chuck (9) and the second rotor connecting seat (3).

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