RVDT angle adjusting tool

Abstract

The utility model provides an RVDT angle adjusting tool. The RVDT angle adjusting tool comprises a base. An adjusting block, a supporting seat and a fixing seat are sequentially arranged on the base from left to right; the adjusting block is rotationally mounted on the supporting seat, and a rotating shaft transversely penetrates through the supporting seat and the adjusting block in sequence; an opening type through hole is formed in the fixed seat, and a locking piece is arranged at an opening of the opening type through hole; the rotating shaft and the central axis of the open type through hole are on the same horizontal line; a stator of a to-be-tested RVDT is installed in the open type through hole, then a rotor shaft crank of the to-be-tested RVDT is clamped with the rotating shaft, the angle of the stator is adjusted, the relative position relation between the rotor shaft and the stator is changed, an initial angle is set, the stator is fixed through the locking piece, and the adjusting block is rotated to drive the rotor shaft to rotate; therefore, the rapid adjustment of the angle is realized, the tool is simple in structure and convenient to operate, and the operation reliability is ensured while the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage auxiliary equipment, in particular to an RVDT angle adjustment tool. Background Art

[0002] RVDT is the abbreviation of Rotary Variable Differential Transformer, which is an angular displacement sensor. It can transmit the rotation of mechanical parts to the shaft of the angular displacement sensor, drive the spoiler or iron core connected to it, change the induced voltage or inductance in the coil, and output an AC signal that is proportional to the rotation angle. It can be used in aviation equipment, machining equipment, and rotary brake feedback.

[0003] The rotor shaft of the RVDT can achieve 360° rotation measurement and is very flexible in rotation. However, in actual use, the working angle range is usually small, about one-sixth of the full stroke. The traditional angle adjustment method is to connect the angle encoder for adjustment. However, the connection process is complicated, which reduces work efficiency, and the rotor shaft needs to be manually rotated to achieve the required angle range, which has low reliability. Utility Model Content

[0004] The purpose of the utility model is to provide an RVDT angle adjustment tool to solve the problem that the existing angle adjustment method proposed in the above background technology is to connect an angle encoder for adjustment, but the connection process is complicated, which reduces the work efficiency, and requires manual rotation of the rotor shaft to achieve the required angle range, resulting in low reliability.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An RVDT angle adjustment tool comprises a base;

[0007] The base is provided with an adjustment block, a support seat and a fixing seat from left to right in sequence;

[0008] Wherein, the adjustment block is rotatably mounted on the support seat, and a rotation axis sequentially crosses the support seat and the adjustment block;

[0009] The fixing seat is provided with an open through hole in the transverse direction, and a locking member is provided at the opening of the open through hole;

[0010] The rotation axis and the central axis of the open through hole are on the same horizontal line.

[0011] Preferably, the rotating shaft comprises a hexagonal end and a shaft end, and the hexagonal end is provided with a U-shaped groove.

[0012] Preferably, a square through hole is formed on the adjusting block, the shaft end crosses the square through hole, and the diameter of the shaft end is equal to the side length of the square through hole.

[0013] Preferably, the shaft end is fixed by a nut after passing through the square through hole, and a spring washer is provided between the nut and the adjusting block.

[0014] Preferably, the support seat is provided with a through hole for the rotating shaft to pass through, and a group of bearings are provided at both ends of the through hole.

[0015] Preferably, the support seat is marked with angle scale lines, and the angle scale lines are on a circle that is concentric with the through hole.

[0016] Preferably, the adjustment block is an irregular sector consisting of two straight edges and an arc, and the vertex angle formed by the two straight edges is used to indicate the angle scale line.

[0017] Preferably, the support seat is further provided with a hole slot, a spring is installed in the hole slot, and a buckle is provided at one end of the spring close to the adjustment block, and a plug is provided at the other end.

[0018] Preferably, the top of the buckle is a spherical end, and the spring is connected to the non-spherical end of the buckle; on the side where the adjustment block is connected to the support seat, a number of grooves that cooperate with the spherical end of the buckle are evenly arranged along a circumference that is concentric with the circumference of the angle scale line, and the positions of the grooves correspond to the angle scale lines.

[0019] Compared with the prior art, the beneficial effects of the utility model are: aligning the adjustment block with the 0 scale, and engaging the rotor shaft crank of the RVDT to be tested into the U-shaped groove of the rotating shaft, the angle of the stator of the RVDT to be tested can be adjusted, the relative position relationship between the rotor shaft and the stator can be changed, the initial angle is set, and then the stator of the RVDT to be tested is fixed by the fixing seat, and the adjustment block is rotated to drive the rotor shaft to rotate. When the adjustment block indicates the required angle, it means that the rotor shaft has rotated the corresponding angle relative to the stator of the RVDT to be tested, thereby realizing the rapid adjustment of the RVDT angle and improving work efficiency. The angle adjustment tooling has a simple structure and is easy to operate. The entire adjustment process can be completed by the staff alone, which improves work efficiency while ensuring the reliability of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0022] Figure 2 It is a cross-sectional schematic diagram of an embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the rotating shaft of an embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the adjustment block of the embodiment of the utility model;

[0025] Figure 5 It is a schematic structural diagram of the support seat according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] 10. Base

[0028] 20. Adjustment block; 21. Square through hole; 22. Groove;

[0029] 30. Support seat; 31. Bearing; 32. Hole groove;

[0030] 40. Fixed seat; 41. Locking piece; 42. RVDT to be tested;

[0031] 50, rotating shaft; 51, hexagonal end; 511, U-shaped groove; 52, shaft end;

[0032] 60. Spring pad;

[0033] 70. Spring;

[0034] 80. Buckle;

[0035] 90. Plug. DETAILED DESCRIPTION

[0036] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0037] In the description of the present invention, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships conventionally placed when the product of the present invention is used, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0040] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0041] The embodiment of the utility model provides an RVDT angle adjustment tool, including a base 10;

[0042] The base 10 is provided with an adjustment block 20, a support seat 30 and a fixing seat 40 from left to right in sequence;

[0043] The adjusting block 20 is rotatably mounted on the supporting seat 30, and a rotating shaft 50 sequentially crosses the supporting seat 30 and the adjusting block 20;

[0044] The fixing seat 40 is provided with an open through hole in the transverse direction, and a locking member 41 is provided at the opening of the open through hole;

[0045] The rotation axis 50 is on the same horizontal line as the central axis of the open through hole.

[0046] Specifically, the locking member 41 is a locking screw, which passes through the opening of the open through hole from top to bottom through the inside of the fixing seat 40, and the opening is locked and loosened by rotating the locking screw, thereby controlling the fixation of the RVDT 42 to be tested; the supporting seat 30 and the fixing seat 40 are fixed to the base 10 by screws, and the base 10 supports the tooling.

[0047] When in use, the stator of the RVDT 42 to be tested is installed in the open through hole, and then the rotor shaft crank of the RVDT 42 to be tested is engaged with the rotating shaft 50, the angle of the stator of the RVDT 42 to be tested is adjusted, the relative position relationship between the rotor shaft and the stator is changed, and the initial angle is set. Then, the stator of the RVDT 42 to be tested is fixed by the locking member 41 to prevent the stator from rotating during the rotation of the rotor shaft, resulting in inaccurate angle adjustment; then the adjustment block 20 is rotated to drive the rotor shaft to rotate. When the adjustment block 20 indicates the required angle, it means that the rotor shaft has rotated the corresponding angle relative to the stator of the RVDT 42 to be tested, thereby realizing rapid adjustment of the RVDT angle.

[0048] The angle adjustment tooling has a simple structure and is easy to operate. The entire adjustment process can be completed by a worker alone, thereby improving work efficiency while ensuring operational reliability.

[0049] Furthermore, the rotating shaft 50 includes a hexagonal end 51 and a shaft end 52. The hexagonal end 51 is provided with a U-shaped groove 511, and the U-shaped groove 511 is used to engage the crank of the rotor shaft of the RVDT 42 to be tested to prevent the tooling from being loosely connected to the rotor shaft.

[0050] In order to prevent relative rotation between the rotating shaft 50 and the adjusting block 20 during rotation, thereby affecting the angle adjustment, a square through hole 21 is opened on the adjusting block 20, and the shaft end 52 crosses the square through hole 21, and the diameter of the shaft end 52 is equal to the side length of the square through hole 21.

[0051] Furthermore, the shaft end 52 is fixed by a nut after passing through the square through hole 21 , and a spring washer 60 is provided between the nut and the adjustment block 20 to prevent the adjustment block 20 from loosening and causing inaccurate angle adjustment.

[0052] Furthermore, the support seat 30 is provided with a through hole for the rotating shaft 50 to pass through, and a group of bearings 31 are provided at both ends of the through hole. The bearings 31 are used to support the rotating shaft 50 and reduce the friction generated by the rotating shaft 50 during the rotation process.

[0053] In order to achieve rapid adjustment of the angle, the support seat 30 is marked with angle scale lines, and the angle scale lines are on a circle that is concentric with the through hole.

[0054] It should be noted that the angle scale line is located below the support seat 30 and occupies only a quarter of the circumference.

[0055] Specifically, the adjustment block 20 is an irregular sector formed by two straight sides and an arc, and the vertex angle formed by the two straight sides is used to indicate the angle scale line.

[0056] When in use, first rotate the adjustment block 20 to align it with the 0 scale line, then install and fix the RVDT 42 to be tested for angle adjustment. The angle scale line indicated by the adjustment block 20 represents the rotation angle of the rotor shaft relative to the stator of the RVDT 42 to be tested.

[0057] In order to ensure that the buckle 80 can flexibly engage with the adjustment block 20, a hole groove 32 is also opened on the support seat 30, and a spring 70 is installed in the hole groove 32. The spring 70 is provided with a buckle 80 at one end close to the adjustment block 20, and a plug 90 at the other end. The plug 90 is used to fix and adjust the spring 70 to prevent the spring 70 from falling off and to adjust the compression amount of the spring 70 after the elastic force of the spring 70 is weakened.

[0058] Furthermore, the top of the buckle 80 is a spherical end, and the spring 70 is connected to the non-spherical end of the buckle 80; on the side where the adjustment block 20 is connected to the support seat 30, a number of grooves 22 that cooperate with the spherical end of the buckle 80 are evenly arranged along a circumference that is concentric with the circumference of the angle scale line, and the positions of the grooves 22 correspond to the angle scale lines.

[0059] During use, after the angle adjustment is completed, the adjustment block 20 is aligned with the required angle scale line, and the spherical end of the buckle 80 is engaged with the groove 22 on the adjustment block 20 under the action of the elastic force of the spring 70, ensuring that the adjustment block 20 will not produce unnecessary rotation and affect the adjustment of the angle of the RVDT 42 to be tested.

[0060] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An RVDT angle adjustment tool, characterized in that: including a base (10); The base (10) is provided with an adjustment block (20), a support seat (30) and a fixing seat (40) in sequence from left to right; The adjusting block (20) is rotatably mounted on the supporting seat (30), and a rotating shaft (50) sequentially passes through the supporting seat (30) and the adjusting block (20); The fixing seat (40) is provided with an open through hole in the transverse direction, and a locking member (41) is provided at the opening of the open through hole; The rotation axis (50) and the central axis of the open through hole are on the same horizontal line.

2. The RVDT angle adjustment tool according to claim 1, characterized in that: The rotating shaft (50) comprises a hexagonal end (51) and a shaft end (52); the hexagonal end (51) is provided with a U-shaped groove (511).

3. The RVDT angle adjustment tool according to claim 2, characterized in that: The adjusting block (20) is provided with a square through hole (21), the shaft end (52) crosses the square through hole (21), and the diameter of the shaft end (52) is equal to the side length of the square through hole (21).

4. The RVDT angle adjustment tool according to claim 3, characterized in that: The shaft end (52) is fixed via a nut after passing through the square through hole (21), and a spring washer (60) is provided between the nut and the adjustment block (20).

5. The RVDT angle adjustment tool according to claim 1, characterized in that: The support seat (30) is provided with a through hole for the rotating shaft (50) to pass through, and a group of bearings (31) are provided at both ends of the through hole.

6. The RVDT angle adjustment tool according to claim 5, characterized in that: The support seat (30) is marked with angle scale lines, and the angle scale lines are on a circle that is concentric with the through hole.

7. The RVDT angle adjustment tool according to claim 6, characterized in that: The adjustment block (20) is an irregular sector formed by two straight sides and a circular arc, and the vertex angle formed by the two straight sides is used to indicate the angle scale line.

8. The RVDT angle adjustment tool according to claim 6, characterized in that: The support seat (30) is also provided with a hole groove (32), a spring (70) is installed in the hole groove (32), and a buckle (80) is provided at one end of the spring (70) close to the adjustment block (20), and a plug (90) is provided at the other end.

9. The RVDT angle adjustment tool according to claim 8, characterized in that: The top of the buckle (80) is a spherical end, and the spring (70) is connected to the non-spherical end of the buckle (80); on the side where the adjustment block (20) is connected to the support seat (30), a plurality of grooves (22) that cooperate with the spherical end of the buckle (80) are evenly arranged along a circumference that is concentric with the circumference of the angle scale line, and the position of the groove (22) corresponds to the angle scale line.

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