Intelligent screw pitch ruler

Abstract

An intelligent pitch ruler comprises an inclinometer fixed on an L-shaped bottom plate, the L-shaped bottom plate comprises a horizontal plate and a vertical plate which are perpendicular to each other, and the horizontal plate is parallel to a measuring surface of the inclinometer; a first connecting piece is arranged on the back face of the L-shaped bottom plate, a back through hole is formed in the first connecting piece, and the length direction of the back through hole is parallel to the horizontal plate and the vertical plate at the same time. The back face or the bottom face of the L-shaped bottom plate is further connected with a second connecting piece, the second connecting piece is detachably and rotationally connected with a plug piece assembly, and when the plug piece assembly is in a leveling state, the plug piece assembly is parallel to the horizontal plate. The plug piece assembly can provide multi-gear plug pieces to adapt to gaps of rotor wing clamping seats with different standard thicknesses, the first connecting piece can be provided with a plurality of back through holes to adapt to step bolts on the rotor wing clamping seats with different specifications, and the two measuring structures can adapt to a main rotor wing clamping seat and a tail rotor wing clamping seat respectively; and the patch assembly is detachably connected with the second connecting piece, so that the interference of the self weight of the screw pitch ruler on the rotor clamping seat during back through hole measurement is effectively reduced, and the measurement stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model discloses a metering equipment technical field, especially intelligent pitch gauge. BACKGROUND

[0002] The pitch of the remote control helicopter refers to the included angle between the center line of the helicopter blade cross section and the horizontal line, and the pitch measurement of the main blade and the tail blade is involved in the installation and debugging links of the remote control helicopter.

[0003] The existing pitch gauge has two modes of absolute measurement and relative measurement, when the same group of blade debugging is carried out by using the blade pitch gauge disclosed in CN208887551, manual operation cannot guarantee that each measurement position is consistent with the distance of the blade tip, and the operation error reduces the debugging accuracy. The pitch of the symmetrical airfoil blade is equal to the inclination angle of the rotor clamp seat, so an intelligent pitch gauge compatible with the inclination angle measurement of the main rotor clamp seat and the tail rotor clamp seat is required. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses a pitch gauge to solve the prior art problem.

[0005] In order to realize the above-mentioned purpose, the utility model discloses a kind of intelligent pitch gauge, it include fixed on L type bottom plate's inclination angle instrument, L type bottom plate includes mutually perpendicular horizontal plate and vertical plate, horizontal plate is parallel to the measurement surface of inclination angle instrument;The back surface of L type bottom plate is equipped with first connecting piece, first connecting piece is opened with back through hole, the length direction of back through hole is parallel to horizontal plate and vertical plate simultaneously;The back surface or bottom surface of L type bottom plate is further connected with second connecting piece, second connecting piece is detachably rotatably connected with plug piece assembly, plug piece assembly is parallel to horizontal plate when plug piece assembly is in leveling state.

[0006] Preferably, the back through hole is screw connected with the stepped bolt, and the number of the back through hole is not less than one.

[0007] Preferably, the plug piece assembly includes a mounting plate and a plug piece, and the number of the plug piece is not less than one; one end of the mounting plate is rotatably connected with the second connecting piece through a main shaft, and the other end movably connects the plug piece.

[0008] Preferably, the main shaft is a nut assembly, and the nut assembly includes a nut and a bolt; the second connecting piece is provided with a connecting hole, and the mounting plate is provided with a bottom mounting hole; the bolt is connected with the nut through the connecting hole and the bottom mounting hole.

[0009] Preferably, the horizontal plate is fixed with a magnetic piece, and the inclination angle instrument is magnetically fixed with the horizontal plate.

[0010] Preferably, the vertical plate is provided with a main mounting hole for screwing the inclination angle instrument.

[0011] The utility model discloses a beneficial effect is: the plug-in piece assembly can provide multiple grades plug-in pieces, is suitable for the clearance between the rotor holder of different standard thickness, and the first connecting piece can set up multiple back through -hole to be suitable for the step bolt on the rotor holder of different specifications, and the setting of two kinds of measuring structures can be suitable for the main rotor holder and the tail rotor holder respectively. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure schematic diagram of the utility model;

[0013] Figure 2 It is the structure schematic diagram (without inclinometer) of the utility model;

[0014] Figure 3 It is the assembly schematic diagram of plug-in piece assembly and main rotating shaft of the utility model;

[0015] Figure 4 It is the structure schematic diagram (after plug-in piece assembly is dismantled) of the utility model;

[0016] Figure 5 It is the use state diagram of intelligent pitch scale in main rotor holder of the utility model;

[0017] Figure 6 It is the use state diagram of intelligent pitch scale in tail rotor holder of the utility model. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described below in a clear and complete manner in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.

[0019] In conjunction with the embodiments and the drawings Figures 1-6 An intelligent pitch scale comprises an inclinometer 1 fixed on an L-shaped bottom plate 2, the L-shaped bottom plate 2 comprises a horizontal plate 21 and a vertical plate 22 perpendicular to each other, the horizontal plate 21 is parallel to the measuring surface of the inclinometer 1, the back of the L-shaped bottom plate 2 is provided with a first connecting piece 221, the first connecting piece 221 is provided with a back through -hole 3, the length direction of the back through -hole 3 is parallel to the horizontal plate 21 and the vertical plate 22 at the same time, the back or the bottom of the L-shaped bottom plate 2 is further provided with a second connecting piece 212, the second connecting piece 212 is detachably and rotatably connected with a plug-in piece assembly 4, when the plug-in piece assembly 4 is in the leveling state, the plug-in piece assembly 4 is parallel to the horizontal plate 21. The inclinometer can be any one of a digital angle meter, a digital inclinometer and a slope meter.

[0020] A smart pitch gauge first aligns the measuring surface of the inclinometer with a reference plane and zeros it. Then, it rotates the insert assembly to align it with the reference plane until the inclinometer's swatches are also zero. At this point, the insert assembly is in a leveling state.

[0021] A smart pitch gauge has a through hole 3 that is screwed into a stepped bolt. The number of through holes 3 is not less than one, and adjacent through holes are adapted to tail rotor stepped bolts 7 of different specifications and standards.

[0022] Furthermore, the first connector 221 is a T-shaped connector perpendicular to the back of the vertical plate 22. The T-shaped connector includes a horizontal connector and a vertical connector that are perpendicular to each other. The horizontal connector is parallel to the horizontal plate 21, and the vertical connector has the back through hole 3. The length of the back through hole 3 is less than the gap of the tail rotor clamp 6, so that the tail rotor step bolt 7 can pass through the step hole on one side of the tail rotor and then be screwed to the step hole on the other side through the back through hole. At this time, the tail rotor step bolt 7 is parallel to the measuring surface of the inclinometer 1.

[0023] Furthermore, the first connector 221 is integrally connected to the vertical plate 22, and the vertical plate also has hollow holes for weight reduction.

[0024] A smart pitch gauge has a plug assembly 4 comprising a mounting plate 41 and plugs 42 that are parallel to each other, with at least one plug 42; one end of the mounting plate 41 is rotatably connected to a second connector via a main rotating shaft 5, and the other end is movably connected to a plug 42; the main rotating shaft 5 is parallel to both a horizontal plate 21 and a vertical plate 22.

[0025] Furthermore, the mounting plate 41 and the plug 42 have a groove 411 on their opposite sides. The width of the groove 411 is smaller than the width of the plug 42. The bottom surface of the groove 411 has a mounting platform with screw holes. After passing through several plugs, the positioning bolts are screwed into the screw holes to fix them, so as to realize the movable connection between the plug 42 and the mounting plate 41. The top surface of the mounting platform is flush with the top surface of the groove. According to the thickness of the main rotor clamp gap 8, the corresponding number of plugs 42 can be moved and stacked on the top surface of the groove 411 in sequence until the plug assembly 4 at one end of the mounting plate 41 is tightly inserted into the main rotor clamp gap 8. At this time, the mounting plate and the main rotor clamp are parallel to each other.

[0026] Furthermore, the mounting plate 41 and the plug 42 are provided with a back groove 414 for weight reduction on their respective back sides.

[0027] A smart pitch gauge has a main rotating shaft 5 that is a nut assembly, which includes a nut and a bolt. A second connecting member 212 has a connecting hole 2121, and a mounting plate 41 has a bottom mounting hole. The connecting hole 2121 and the bottom mounting hole are coaxially arranged. The bolt passes through the connecting hole 2121 and the bottom mounting hole and is screwed to the nut. The relative rotation / stationary state between the mounting plate and the second connecting member can be switched by adjusting the tightness of the nut.

[0028] Further, the second connecting piece is vertically fixed to the back of the L-shaped bottom plate, and the second connecting piece is above or below the first connecting piece; or, the second connecting piece 212 is vertically fixed to the bottom surface of the horizontal plate 21, and the mounting plate is hinged to the back or bottom surface of the L-shaped bottom plate.

[0029] Further, the connecting hole and the back through hole 3 are arranged in the same direction; the mounting plate 41 extends along the length direction of the mounting plate 41 and has a connecting arm 413, and the connecting arm 413 is provided with the bottom mounting hole.

[0030] Further, the number of the second connecting piece 212 is two, and the number of the connecting arm 413 is three; the connecting arm and the second connecting piece are arranged at intervals to realize the stable connection between the mounting plate and the L-shaped bottom plate.

[0031] Further, the hole wall of the connecting hole and the bottom mounting hole is a smooth surface.

[0032] Before use, the screw rod is locked with the nut after penetrating through the bottom mounting hole and the connecting hole, so as to realize the compression and locking of the second connecting piece and the connecting arm, so that the mounting plate and the second connecting piece are in a relatively static state; during use, the face fitting reference plane is measured through the horizontal plate or the inclinometer, the inclinometer is zeroed, and then according to the gap thickness of the main rotor clamp seat, the corresponding number of the plug-in piece is adjusted until the one end of the plug-in piece assembly can be closely inserted with the main rotor clamp seat, and at this time, the display value of the inclinometer is the relative pitch.

[0033] An intelligent pitch ruler, the horizontal plate is fixed with a magnetic piece, and the inclinometer is magnetically fixed with the horizontal plate, so as to facilitate the collection of the reference surface of the inclinometer.

[0034] An intelligent pitch ruler, the vertical plate is reserved with a main mounting hole for screwing the inclinometer, the inclinometer and the L-shaped bottom plate can be fixedly connected through screwing, and sliding and falling during measurement is avoided.

[0035] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A smart pitch gauge, comprising an inclinometer fixed to an L-shaped base plate, characterized in that, The L-shaped base plate includes a horizontal plate and a vertical plate that are perpendicular to each other. The horizontal plate is parallel to the measuring surface of the inclinometer. The back of the L-shaped base plate is provided with a first connector. The first connector has a back through hole, the length of which is parallel to both the horizontal plate and the vertical plate. The back or bottom of the L-shaped base plate is also connected to a second connector. A plug assembly is detachably and rotatably connected to the second connector. When the plug assembly is in the leveling state, the plug assembly is parallel to the horizontal plate.

2. The intelligent pitch ruler according to claim 1, characterized in that: The through hole is screwed into the stepped bolt, and there is no less than one through hole.

3. The intelligent pitch ruler according to claim 1, characterized in that: The plug assembly includes a mounting plate and a plug that are parallel to each other, with at least one plug; one end of the mounting plate is rotatably connected to the second connector via a main shaft, and the other end is movably connected to the plug.

4. The intelligent pitch ruler according to claim 3, characterized in that: The main shaft is a nut assembly, which includes a nut and a bolt; the second connector has a connecting hole, and the mounting plate has a bottom mounting hole. The bolt passes through the connecting hole and the bottom mounting hole and is screwed to the nut.

5. The intelligent pitch ruler according to claim 1, characterized in that: A magnetic plate is fixed on the level plate, and the inclinometer is magnetically attached to the level plate.

6. The intelligent pitch ruler according to claim 1, characterized in that: The vertical plate has a pre-drilled main mounting hole for screwing inclinometers.

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