Corrector for vector sensor mounting rack

Abstract

The utility model discloses a corrector for a vector sensor mounting rack, which belongs to the technical field of helicopter part correcting equipment, and comprises a large cylinder, the cylindrical surface of which is provided with a transverse inner hole for mounting measuring equipment; the small cylinder is connected to the end face of one side of the large cylinder; the large cylinder is connected with a tested piece through the small cylinder; the reference plane is arranged on the cylindrical surface of the large cylinder and is parallel to the axes of the large cylinder, the small cylinder and the transverse inner hole; the level assembly is arranged on the reference plane; the limiting assembly is arranged on the cylindrical surface of the small cylinder and is used for positioning and fixing the relative position between the reference plane and the measured piece; according to the invention, the levelness of the datum plane is quantified to the visual level assembly, and an accurate and reliable reference basis is provided for mounting, debugging and detecting the vector sensor mounting rack.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of helicopter parts correction equipment, more specifically, especially relates to a corrector for vector sensor mounting rack. BACKGROUND

[0002] The vector sensor of a helicopter is a kind of precision measuring sensor, which is used to measure the speed, height, temperature and other parameters of the aircraft in flight, in order to ensure the accuracy of the measurement data of the vector sensor, it is generally installed in a position far away from the fuselage by the vector sensor mounting rack;The flange plate of the vector sensor mounting rack is installed on the aircraft body, and the other end is connected to the vector sensor.

[0003] In the overhaul of the helicopter, the vector sensor mounting rack needs to be debugged and accepted by means of tooling, and the vector sensor mounting rack is in a horizontal state by debugging, to ensure that the three-axis installation error is not more than A °, to further ensure the accuracy of the measurement data of the vector sensor;At present, the operator cannot quickly and accurately obtain the real horizontal state of the vector sensor mounting rack after debugging, and judge whether it meets the process requirements. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the technical problem that it is difficult to judge the real horizontal state of the vector sensor mounting rack after debugging, and proposes a corrector for vector sensor mounting rack.

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

[0006] A corrector for vector sensor mounting rack, comprising:

[0007] Large cylinder, the cylindrical surface of the large cylinder is provided with a transverse inner hole for installing measuring equipment;

[0008] Small cylinder, the small cylinder is connected to one side end face of the large cylinder, and is coaxially arranged with the large cylinder;The shape and size of the small cylinder are matched with the measured member, and the large cylinder is connected with the measured member through the small cylinder;

[0009] Reference plane, the reference plane is arranged on the cylindrical surface of the large cylinder, and the reference plane is parallel to the axis of the large cylinder, the axis of the small cylinder and the axis of the transverse inner hole;

[0010] Level assembly, the level assembly is arranged on the reference plane, for measuring and presenting the horizontal state of the reference plane;

[0011] A limiting assembly is arranged on the cylindrical surface of the small cylinder, and is in limiting clamping connection with the measured member, and is used for positioning and fixing the relative position between the reference plane and the measured member.

[0012] Further, the leveling assembly comprises:

[0013] A support is fixed on the reference plane, and a plurality of screw holes are formed in the support;

[0014] A transverse level is arranged on the support, and the transverse level is parallel to the axis of the transverse inner hole;

[0015] A longitudinal level is arranged on the support, and the longitudinal level is parallel to the axis of the large cylinder;

[0016] Four fine adjustment screws are respectively arranged at two ends of the transverse level and two ends of the longitudinal level, and are in threaded connection with the screw holes of the support.

[0017] Further, the limiting assembly comprises:

[0018] A limiting pin is fixed vertically on the cylindrical surface of the small cylinder, and is connected into a corresponding notch on the measured member, and is used for limiting the circumferential rotation of the small cylinder relative to the measured member;

[0019] A hole sleeve is in ring structure, and a through hole matched with the limiting pin in size and position is formed in the hole sleeve, the hole sleeve is sleeved on the cylindrical surface of the small cylinder, and the limiting pin is arranged in the through hole;

[0020] A mandrel bushing is in cylindrical structure, and is sleeved on the small cylinder away from the hole sleeve.

[0021] Further, a target mirror positioning bushing is arranged in the transverse inner hole, and is used for installing a target mirror sight.

[0022] Further, longitudinal inner holes are arranged in the large cylinder and the small cylinder, and are used for reducing the weight.

[0023] The vector sensor mounting frame corrector has the advantages that the actual horizontal state of the reference plane is presented by the leveling assembly, so that the real horizontal state of the transverse inner hole axis, the large cylindrical axis and the small cylindrical axis is indirectly presented; when the levelness of the vector sensor mounting frame is detected, only the state of the leveling assembly needs to be observed, and then whether the levelness of the vector sensor mounting frame in each direction meets the process requirement can be determined; the levelness of the reference plane is quantified to the visible leveling assembly, so that accurate and reliable reference basis is provided for installing, debugging and detecting the vector sensor mounting frame. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a whole structure schematic view of the vector sensor mounting frame corrector provided in the utility model embodiment.

[0025] Fig. 2 It is a whole structure schematic view (another view angle) of the vector sensor mounting frame corrector provided in the utility model embodiment.

[0026] The marks in the drawing are shown as follows:

[0027] 1, large cylinder; 11, transverse inner hole; 12, target mirror positioning bushing; 13, longitudinal inner hole;

[0028] 2, small cylinder; 3, reference plane; 4, leveling assembly; 41, supporting piece; 42, transverse level; 43, longitudinal level; 44, fine adjustment screw; 5, limiting assembly; 51, limiting pin; 52, hole shaft sleeve; 53, mandrel bushing. DETAILED DESCRIPTION

[0029] The technical scheme in the utility model embodiment will be clearly and completely described below with reference to the drawings in the utility model embodiment. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the utility model embodiments are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.

[0031] In the utility model, unless another definite provision and limitation, the terms "connect", "fix" and the like should be understood broadly, for example, "fix" can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication or the interaction relationship of two elements inside, unless another definite limitation.For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0032] In addition, if the embodiment of the utility model involves "first", "second" and the like, the "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of indicated technical features.Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one feature.In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously meet the scheme.In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on that ordinary skilled in the art can realize, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0033] In actual application, if the vector sensor mounting frame is miscollected, the vector sensor coordinate system and the helicopter body coordinate system will not coincide, the measurement direction and the actual value will produce deviation, which directly affects the measurement accuracy and reliability of the vector sensor, and further threatens the flight safety;Please refer to Figs. 1-2 The embodiment of the application shown provides a kind of corrector for vector sensor mounting frame, corrector for vector sensor mounting frame is used to measure and directly show the real level state of vector sensor mounting frame after debugging, so as to be adjusted in time by operator;The corrector for vector sensor mounting frame in the embodiment is overall multistage columnar structure, its diameter changes gradually, including: large cylinder 1, small cylinder 2, reference plane 3, level assembly 4 and limiting assembly 5;Wherein, large cylinder 1 is the main component for measuring three-axis installation error of vector sensor mounting frame, large cylinder 1 is equipped with transverse inner hole 11, transverse inner hole 11 penetrates the two side cylinder faces of large cylinder 1, for installing measuring equipment.

[0034] The small cylinder 2 is a main connecting piece between the large cylinder 1 and the vector sensor mounting rack, is fixed on one side end surface of the large cylinder 1, and the axis of the small cylinder 2 is on the same straight line with the axis of the large cylinder 1, that is, the small cylinder 2 is coaxially arranged with the large cylinder 1. The shape and diameter of the small cylinder 2 are matched with the mounting arm of the vector sensor mounting rack, and the small cylinder 2 is inserted into the mounting arm of the vector sensor mounting rack, so as to realize detachable mounting between the corrector and the vector sensor mounting rack.

[0035] In order to make the X-axis, Y-axis and Z-axis directions required by the vector sensor mounting rack for measurement and acceptance to be associated with the attitude of the corrector, a reference plane 3 is arranged on the cylindrical surface of the large cylinder 1, the reference plane 3 is a rectangular plane, and is parallel to the axis of the large cylinder 1, the axis of the small cylinder 2 and the axis of the transverse inner hole 11.

[0036] In order to enable the operator to intuitively obtain the levelness of the vector sensor mounting rack through the reference plane 3, a leveling assembly 4 is arranged on the reference plane 3, and is used for measuring and presenting the levelness of the reference plane 3. As an embodiment of the present application, the leveling assembly 4 comprises a support 41, a transverse level 42, a longitudinal level 43 and a fine adjustment screw 44. The support 41 is fixed on the surface of the reference plane 3 through a cross slot head screw, and screw holes for mounting the transverse level 42 and the longitudinal level 43 are formed in the support 41.

[0037] As a preferred embodiment of the present application, the transverse level 42 and the longitudinal level 43 both adopt a tube level. The two ends of the transverse level 42 are respectively provided with the fine adjustment screw 44, and are fixed on the support 41 through the fine adjustment screw 44 and the screw thread connection mode. The level tube of the transverse level 42 is parallel to the axis of the transverse inner hole 11. Similarly, it can be understood that the two ends of the longitudinal level 43 are respectively provided with the fine adjustment screw 44, and are fixed on the support 41. The level tube of the longitudinal level 43 is parallel to the axis of the large cylinder 1. Through the above design, the position of the level bubble on the transverse level 42 can present the real level state of the axis of the transverse inner hole 11, and the position of the level bubble on the longitudinal level 43 can present the real level state of the axis of the large cylinder 1 and the axis of the small cylinder 2. When the level bubbles of the transverse level 42 and the longitudinal level 43 are all centered, it indicates that the level state of the reference plane 3 reaches the requirement, that is, the level state of the vector sensor mounting rack reaches the requirement.

[0038] In the above technical solution, the fine adjustment screw 44 can be a cross slot countersunk screw; the fine adjustment screw 44 is designed to adjust the inclination of the corresponding transverse level 42 or longitudinal level 43 when the accuracy of the measurement performance of the transverse level 42 or longitudinal level 43 is found to be reduced, i.e. no longer parallel to the corresponding axis, so that the transverse level 42 or longitudinal level 43 is restored to be parallel to the corresponding axis again.

[0039] The limiting component 5 is arranged on the cylindrical surface of the small cylinder 2, and is clamped with the vector sensor mounting rack to quickly position and fix the position between the reference plane 3 and the vector sensor mounting rack; as an embodiment of the present application, the limiting component 5 comprises a limiting pin 51, a hole shaft sleeve 52 and a mandrel bushing 53; the limiting pin 51 is fixed vertically on the cylindrical surface of the small cylinder 2, and corresponds to the notch position at the end of the mounting arm of the vector sensor mounting rack; after the small cylinder 2 is inserted into the mounting arm of the vector sensor mounting rack, the limiting pin 51 is clamped in the notch at the end of the mounting arm to limit the circumferential rotation of the small cylinder 2 relative to the vector sensor mounting rack.

[0040] The hole shaft sleeve 52 has a ring structure, and a through hole matched with the size and position of the limiting pin 51 is formed in the hole shaft sleeve 52; the hole shaft sleeve 52 is sleeved on the cylindrical surface of the small cylinder 2, and the limiting pin 51 is arranged in the through hole; the mandrel bushing 53 has a cylindrical structure, and is sleeved on the end of the small cylinder 2 away from the hole shaft sleeve 52; the hole shaft sleeve 52 and the mandrel bushing 53 are wrapped around the circumference of the two end surfaces of the small cylinder 2, which can reduce the abrasion caused by the direct contact between the small cylinder 2 and the vector sensor mounting rack, and can make the connection between the small cylinder 2 and the vector sensor mounting rack more compact to avoid the shaking of the small cylinder 2 in the vector sensor mounting rack, thereby improving the measurement stability and reliability.

[0041] As an embodiment of the present application, the target mirror positioning bushing 12 for fixing the measuring device is arranged in the transverse inner hole 11; in this embodiment, the measuring device is a target mirror sight, which is inserted into the target mirror positioning bushing 12 through the cylindrical joint, and the operator can read the offset angle of the vector sensor mounting rack on the Z axis through the position of the engraved line in the target mirror sight after the target mirror sight is fixed.

[0042] As a preferred embodiment of the present application, the longitudinal inner holes 13 are arranged in the interiors of the large cylinder 1 and the small cylinder 2 along the axial direction to reduce the weight of the large cylinder 1 and the small cylinder 2, and facilitate the overall transfer of the vector sensor mounting rack with the corrector.

[0043] The calibrator for the vector sensor mounting frame provided by the application presents the actual horizontal state of the reference plane 3 by using the leveling assembly 4, thereby indirectly presenting the real horizontal state of the axis of the transverse inner hole 11, the axis of the large cylinder 1 and the axis of the small cylinder 2; when detecting the levelness of the vector sensor mounting frame, only the state of the leveling assembly 4 is observed, and then whether the levelness of the vector sensor mounting frame in each direction reaches the process requirement can be judged; the design of the calibrator for the vector sensor mounting frame quantifies the levelness of the reference plane 3 to the visible leveling assembly 4, thereby providing an accurate and reliable reference basis for installing, debugging and detecting the vector sensor mounting frame.

[0044] The above merely describes a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacements or changes within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A calibrator for a vector sensor mount, characterized by, The utility model relates to a kind of target mirror positioning device, including: Large cylinder, the cylindrical surface of the large cylinder is provided with transverse inner hole for installing measuring equipment; Small cylinder, the small cylinder is connected to the side end surface of the large cylinder, and is coaxially arranged with the large cylinder;The shape and size of the small cylinder are adapted to the measured member, and the large cylinder is connected with the measured member through the small cylinder; Reference plane, the reference plane is arranged on the cylindrical surface of the large cylinder, and the reference plane is parallel to the axis of the large cylinder, the axis of the small cylinder and the axis of the transverse inner hole; Leveling assembly, the leveling assembly is arranged on the reference plane, for measuring and presenting the horizontal state of the reference plane; Limiting assembly, the limiting assembly is arranged on the cylindrical surface of the small cylinder, and the limiting assembly is limitedly connected with the measured member, for positioning and fixing the relative position between the reference plane and the measured member.

2. A corrector for a vector sensor mounting according to claim 1, characterized in that The leveling assembly includes: Support, the support is fixed on the reference plane, and a plurality of screw holes are formed in the support; Transverse level, the transverse level is arranged on the support, and the transverse level is parallel to the axis of the transverse inner hole; Longitudinal level, the longitudinal level is arranged on the support, and the longitudinal level is parallel to the axis of the large cylinder; Four fine adjustment screws are respectively arranged at both ends of the transverse level and both ends of the longitudinal level, and are threadedly connected in the screw holes of the support.

3. A corrector for a vector sensor mounting according to claim 1, characterized in that, The limiting assembly includes: Limiting pin, the limiting pin is vertically fixed on the cylindrical surface of the small cylinder, and is connected in the corresponding notch on the measured member, for limiting the circumferential rotation of the small cylinder relative to the measured member; Hole sleeve, the hole sleeve is in ring structure, and a through hole matched with the size and position of the limiting pin is formed in the hole sleeve, the hole sleeve is sleeved on the cylindrical surface of the small cylinder, and the limiting pin is arranged in the through hole; Core shaft bushing, the core shaft bushing is in cylindrical structure, and the core shaft bushing is sleeved on the small cylinder away from the hole sleeve.

4. A corrector for a vector sensor mounting according to claim 1, characterized in that, A target mirror positioning bushing is arranged in the transverse inner hole, for installing target mirror sight.

5. A corrector for a vector sensor mounting according to claim 1, characterized in that, Longitudinal inner holes are arranged in the large cylinder and the small cylinder, for reducing weight.

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