CN114018726A - Rigidity-adjustable piano spring type torque loading device - Google Patents
Rigidity-adjustable piano spring type torque loading device Download PDFInfo
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- CN114018726A CN114018726A CN202111237260.7A CN202111237260A CN114018726A CN 114018726 A CN114018726 A CN 114018726A CN 202111237260 A CN202111237260 A CN 202111237260A CN 114018726 A CN114018726 A CN 114018726A
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- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 10
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 210000000056 organ Anatomy 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/22—Investigating strength properties of solid materials by application of mechanical stress by applying steady torsional forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
Abstract
A reed type torque loading device with adjustable rigidity comprises a base, a reed and a positioning output mechanism; the base is U-shaped, the opening end of the base is correspondingly connected with one end of the piano spring, and the center of the opening of the base is provided with a positioning output mechanism capable of fixing the piano spring; the piano spring is composed of two key spring assemblies which are arranged in parallel in an up-down structure, each key spring assembly comprises four key springs which are arranged in parallel along the horizontal direction, each key spring is composed of two spring rods and a connecting block, and the connecting blocks are correspondingly clamped and connected with the tail ends of the two spring rods; the head ends of the four spring rods positioned at the center in the piano spring correspond to and are connected with the clamping mechanism, the head ends of the four spring rods positioned at the two ends in the piano spring correspond to and are connected with the two vertical end faces of the base, the head ends of the rest spring rods in the piano spring correspond to and are connected with each other through the clamping block, and the torque loading device can guarantee strength and rigidity and can meet the requirement of miniaturization.
Description
Technical Field
The invention relates to the technical field of aircraft simulation tests, in particular to a piano spring type torque loading device with adjustable rigidity.
Background
As is known, a steering engine is a key execution component for aircraft navigation, but when an actual flight condition of an aircraft is tested, a load torque of the steering engine cannot be separately tested, so that a device capable of simulating the load torque borne by the steering engine under the actual flight condition is needed, and a common method is to simulate the load torque of the steering engine of the aircraft in actual work by using a torque loading device; the traditional torque loading device generally adopts a single-rod torsion spring as a main body because the single-rod torsion spring has the advantages of simple structure and low manufacturing cost, but on the other hand, the single-rod torsion spring has the defects of longer length and larger occupied space, and because the space in the torque loading device is smaller, the single-rod torsion spring can only provide smaller loading torque in a small space, so that the design requirements on strength and rigidity in the torque loading device can not be met;
therefore, in summary, there is a need in the market for a torque loading device that can ensure strength and rigidity and can be miniaturized.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses a reed type torque loading device with adjustable rigidity.
In order to achieve the purpose, the invention adopts the following technical scheme:
a reed type torque loading device with adjustable rigidity comprises a base, a reed and a positioning output mechanism; the base is U-shaped, the opening end of the base is correspondingly connected with one end of the piano spring, and the center of the opening of the base is provided with a positioning output mechanism capable of fixing the piano spring; the piano spring is composed of two key spring assemblies which are arranged in parallel in an up-down structure, each key spring assembly comprises four key springs which are arranged in parallel along the horizontal direction, each key spring is composed of two spring rods and a connecting block, and the connecting blocks are correspondingly clamped and connected with the tail ends of the two spring rods; the head ends of four spring rods positioned in the center in the organ spring are correspondingly connected with the clamping mechanism, the head ends of the four spring rods positioned at the two ends in the organ spring are correspondingly connected with the end faces of the two vertical ends of the base, and the head ends of the rest spring rods in the organ spring are correspondingly connected through the clamping block;
preferably, the positioning output mechanism comprises an output shaft and a holding block, the tail end of the output shaft correspondingly penetrates through the center of the end face of the opening of the base, and the head end face of the output shaft is provided with a cross positioning block; the head ends of four spring rods positioned in the center of the piano spring are respectively positioned at four included angles of the cross-shaped positioning block, and an adjusting cushion block I is arranged between each spring rod and the corresponding included angle; the two retaining blocks can correspondingly coat the cross positioning block and fix the positions of the four spring rods;
preferably, a countersunk plug hole is formed in the center of the opening end face of the base, a deep groove ball bearing is arranged at the countersunk part of the plug hole, the tail end of the output shaft correspondingly penetrates through the deep groove ball bearing and the plug hole, a baffle is arranged at the head end of the output shaft, and a cross-shaped positioning block is arranged on the baffle;
preferably, the outer side surfaces of the two vertical ends of the base are respectively provided with two grooves and a pressing plate capable of covering the groove openings of the grooves, and the four grooves are respectively communicated with the end surfaces of the vertical ends of the base; the head ends of four spring rods positioned at two ends in the piano spring are correspondingly placed in the four grooves, and an adjusting cushion block II is arranged between the side surface of each spring rod and each groove;
preferably, the cross section of the rod body of the spring rod is circular, and the cross sections of the two ends of the spring rod are square;
preferably, the clamping block is used for connecting two horizontally adjacent spring rods.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the piano spring type torque loading device with adjustable rigidity, disclosed by the invention, has the advantages that the piano spring is designed into a two-layer structure, so that the occupied space of the piano spring is smaller, and the requirement of miniaturization of the torque loading device is met; the two layers of key springs and the base form a whole through the positioning output mechanism, so that the rigidity of the piano spring is guaranteed to a certain extent, and the strength and the rigidity of the torque loading device are guaranteed;
in addition, the output shaft in the positioning output mechanism is rotated, so that the whole piano spring can be driven to realize the function of simulating the load torque of the steering engine.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural diagram of a positioning output mechanism;
fig. 3 is a schematic view of the structure in the direction of a-a in fig. 2.
In the figure: 1. a base; 101. inserting holes; 102. a groove; 2. a piano spring; 201. a spring lever; 202. connecting blocks; 3. a positioning output mechanism; 301. an output shaft; 302. a cross positioning block; 303. a holding block; 4. a clamping block; 5. a deep groove ball bearing; 6. adjusting a cushion block I; 7. pressing a plate; 8. and adjusting a cushion block II.
Detailed Description
In the following description, the technical solutions of the present invention will be described with reference to the drawings of the embodiments of the present invention, and it should be understood that, if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., it is only corresponding to the drawings of the present invention, and for convenience of describing the present invention, it is not necessary to indicate or imply that the indicated devices or elements have a specific orientation:
the harp spring type torque loading device with adjustable rigidity, which is described in conjunction with the attached drawings 1-3, comprises a base 1, a harp spring 2 and a positioning output mechanism 3; the base 1 is U-shaped, namely an open slot is formed in one end face of the base 1, the end part of the piano spring 2 is placed in the open slot, and then the position of the piano spring 2 is fixed by using the positioning output mechanism 3; the open end of the base 1 is correspondingly connected with one end of the piano spring 2, the center of the opening of the base 1 is provided with a positioning output mechanism 3 capable of fixing the piano spring 2, the positioning output mechanism 3 is connected with a test device, and the test device drives the spring rod 201 in the piano spring 2 to act through the positioning output mechanism 3, so that the aim of simulating the torque of the steering engine is fulfilled;
in addition, the positioning output mechanism 3 comprises an output shaft 301 and a holding block 303, the tail end of the output shaft 301 correspondingly penetrates through the center of the opening end face of the base 1, a cross positioning block 302 is arranged on the head end face of the output shaft 301, the tail end of the output shaft 301 penetrates through the base 1 and is connected with corresponding testing equipment, the output shaft 301 can be driven by the testing equipment to rotate, then the cross positioning block 302 drives four spring rods 201 located at the center of the piano spring 2 to twist, and the four spring rods 201 located at two ends of the piano spring 2 are fixedly arranged on the base 1, so that the whole piano spring 2 can provide torque for the rotating output shaft 301, and the output torque of the steering engine is simulated; the head ends of four spring rods 201 positioned at the center in the piano spring 2 are respectively positioned at four included angles of the cross-shaped positioning block 302, and an adjusting cushion block I6 is arranged between each spring rod 201 and the corresponding included angle, wherein the deflection angle of the head end of the center spring rod 201 can be changed by changing the thickness of the adjusting cushion block I6, so that the overall rigidity of the piano spring 2 is improved, namely the overall loading rigidity of the device is improved; the two retaining blocks 303 are arranged into two C-shaped structures, the two retaining blocks 303 can correspondingly wrap the cross-shaped positioning block 302, the positions of the four spring rods 201 are fixed, the four spring rods 201 can be fixed in the cross-shaped positioning block 302 by the aid of the two retaining blocks 303, in addition, the two retaining blocks 303 are connected in a matched mode through bolts, through holes are formed in the vertical ends of the retaining blocks 303, one ends of the bolts correspondingly penetrate through the through holes of the two retaining blocks 303 and then are correspondingly connected with nuts, and finally the two retaining blocks 303 are fixedly connected; according to the requirements, a countersunk plug-in hole 101 is formed in the center of the opening end face of the base 1, a deep groove ball bearing 5 is arranged at the countersunk part of the plug-in hole 101, the tail end of the output shaft 301 correspondingly penetrates through the deep groove ball bearing 5 and the plug-in hole 101, a baffle is arranged at the head end of the output shaft 301, the deep groove ball bearing 5 is placed in a space formed by the baffle and the countersunk part in the plug-in hole 101, the output shaft 301 can rotate more smoothly, the radial bearing capacity of the output shaft 301 is improved, and a cross positioning block 302 is arranged on the baffle;
the piano spring 2 is composed of two key spring components which are arranged in parallel in an upper-lower structure, the arrangement mode of the two key spring components can fully utilize the internal space of the torque loading device, so that the requirement of miniaturization of the torque loading device is met, the key spring components comprise four key springs which are arranged in parallel in the horizontal direction, the key springs are composed of two spring rods 201 and a connecting block 202, the connecting block 202 is correspondingly clamped and connected with the tail ends of the two spring rods 201, the tail ends of the spring rods 201 are limited through the connecting blocks 202, then the head ends of the spring rods 201 are limited through the matching of the positioning output mechanism 3, the base 1 and the clamping block 4, finally the space position of the piano spring 2 is fixed, and because the two piano spring 2 components are in an upper-lower structure, the output shaft 301 drives the four spring rods 201 at the center of the piano spring 2 to rotate, therefore, the whole piano spring 2 can provide certain torque when the output shaft 301 rotates, so that the purpose of simulating the load torque of the steering engine is achieved, particularly, the cross section of the rod body of the spring rod 201 is circular, the cross sections of the two ends of the spring rod 201 are square, namely, the rod body of the spring rod 201 is cylindrical, the two ends of the spring rod 201 are cuboids, and the two ends of the spring rod 201 are required to be correspondingly connected with the base 1, the cross positioning block 302, the connecting block 202 and the clamping block 4, so that the cuboids are more favorable for the matching connection between the spring rod 201 and corresponding parts;
the head ends of four spring rods 201 positioned in the center in the piano spring 2 are correspondingly connected with the clamping mechanism, the head ends of the four spring rods 201 positioned at two ends in the piano spring 2 are correspondingly connected with the end faces of two vertical ends of the base 1, two grooves 102 and a pressing plate 7 capable of covering the notches of the grooves 102 are arranged on the outer side faces of the two vertical ends of the base 1 as required, the four grooves 102 are correspondingly communicated with the end faces of the vertical ends of the base 1, the grooves 102 in the base 1 are square grooves, the width direction of the square grooves is in transition fit with the connecting sections of the spring rods 201, the depth dimension of the square grooves is slightly smaller than that of the connecting sections of the spring rods 201, and the pressing plate 7 can press the head ends of the spring rods 201; the head ends of four spring rods 201 positioned at two ends in the piano spring 2 are correspondingly placed in four grooves 102, an adjusting cushion block II 8 is arranged between the side surface of each spring rod 201 and each groove 102, and the deflection angle of the head end of the central spring rod 201 can be changed by changing the thickness of the adjusting cushion block II 8, so that the overall rigidity of the piano spring 2 is improved, namely the overall loading rigidity of the device is improved; the head ends of the rest spring rods 201 in the piano spring 2 are correspondingly connected through the clamping block 4, in addition, the clamping block 4 is used for connecting two spring rods 201 which are horizontally adjacent, namely, the clamping block 4 and the connecting block 202 are in a corresponding parallel state, so that the two key spring assemblies are relatively independent, but form a whole because of being connected with the cross positioning block 302 together, therefore, compared with a single-rod torsion spring, the structure of the piano spring 2 can generate larger torque, and the simulation of steering engine load torque is facilitated more.
The invention is not described in detail in the prior art, and it is apparent to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a rigidity adjustable piano spring formula moment of torsion loading device which characterized by: comprises a base (1), a piano spring (2) and a positioning output mechanism (3); the base (1) is U-shaped, the opening end of the base (1) is correspondingly connected with one end of the piano spring (2), and the center of the opening of the base (1) is provided with a positioning output mechanism (3) capable of fixing the piano spring (2); the piano spring (2) is composed of two key spring assemblies which are arranged in parallel in an up-down structure, each key spring assembly comprises four key springs which are arranged in parallel along the horizontal direction, each key spring is composed of two spring rods (201) and a connecting block (202), and the connecting block (202) is correspondingly clamped and connected with the tail ends of the two spring rods (201); the head ends of four spring rods (201) positioned at the center in the organ spring (2) are correspondingly connected with the clamping mechanism, the head ends of the four spring rods (201) positioned at two ends in the organ spring (2) are correspondingly connected with the two vertical end faces of the base (1), and the head ends of the rest spring rods (201) in the organ spring (2) are correspondingly connected through the clamping blocks (4).
2. The stiffness-adjustable reed torque loading device as recited in claim 1, wherein: the positioning output mechanism (3) comprises an output shaft (301) and a holding block (303), the tail end of the output shaft (301) correspondingly penetrates through the center of the opening end face of the base (1), and a cross positioning block (302) is arranged on the head end face of the output shaft (301); the head ends of four spring rods (201) positioned in the center in the piano spring (2) are respectively positioned at four included angles of the cross-shaped positioning block (302), and an adjusting cushion block I (6) is arranged between each spring rod (201) and the corresponding included angle; the retaining blocks (303) are of two C-shaped structures, the two retaining blocks (303) can correspondingly cover the cross-shaped positioning block (302), and the positions of the four spring rods (201) are fixed at the same time.
3. The stiffness-adjustable reed torque loading device as recited in claim 2, wherein: the improved deep groove ball bearing device is characterized in that a countersunk plug-in hole (101) is formed in the center of the end face of an opening of the base (1), a deep groove ball bearing (5) is arranged at the countersunk head part of the plug-in hole (101), the tail end of the output shaft (301) correspondingly penetrates through the deep groove ball bearing (5) and the plug-in hole (101), a baffle is arranged at the head end of the output shaft (301), and a cross positioning block (302) is arranged on the baffle.
4. The stiffness-adjustable reed torque loading device as recited in claim 1, wherein: the outer side surfaces of two vertical ends of the base (1) are respectively provided with two grooves (102) and a pressing plate (7) capable of covering the notches of the grooves (102), and the four grooves (102) are correspondingly communicated with the end surfaces of the vertical ends of the base (1); the head ends of four spring rods (201) positioned at two ends in the piano spring (2) are correspondingly placed in the four grooves (102), and adjusting cushion blocks II (8) are arranged between the side surfaces of the spring rods (201) and the grooves (102).
5. The stiffness-adjustable reed torque loading device as recited in claim 1, wherein: the cross section of the rod body of the spring rod (201) is circular, and the cross sections of the two ends of the spring rod (201) are square.
6. The stiffness-adjustable reed torque loading device as recited in claim 1, wherein: the clamping block (4) is used for connecting two horizontally adjacent spring rods (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111237260.7A CN114018726B (en) | 2021-10-22 | 2021-10-22 | Piano spring type torque loading device with adjustable rigidity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111237260.7A CN114018726B (en) | 2021-10-22 | 2021-10-22 | Piano spring type torque loading device with adjustable rigidity |
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| CN114018726A true CN114018726A (en) | 2022-02-08 |
| CN114018726B CN114018726B (en) | 2023-11-21 |
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