CN114018726B - Piano spring type torque loading device with adjustable rigidity - Google Patents
Piano spring type torque loading device with adjustable rigidity Download PDFInfo
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- CN114018726B CN114018726B CN202111237260.7A CN202111237260A CN114018726B CN 114018726 B CN114018726 B CN 114018726B CN 202111237260 A CN202111237260 A CN 202111237260A CN 114018726 B CN114018726 B CN 114018726B
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- 238000003825 pressing Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 3
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- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 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
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Abstract
A spring type torque loading device with adjustable rigidity comprises a base, a spring 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 positioning output mechanism capable of fixing the piano spring is arranged in the center of the opening of the base; the piano spring is composed of two key spring components which are arranged in parallel in an up-down structure, the key spring components comprise four key springs which are arranged in parallel along the horizontal direction, the key springs are composed of two spring rods and a connecting block, and the connecting block is correspondingly clamped and connected with the tail ends of the two spring rods; the head ends of the four spring rods positioned in the center of the piano spring are correspondingly connected with the clamping mechanism, the head ends of the four spring rods positioned at two ends of the piano spring are correspondingly connected with the two vertical end faces of the base, the head ends of the rest spring rods in the piano spring are correspondingly connected through the clamping blocks, and the torque loading device can ensure the strength and the rigidity and can also meet the miniaturization requirement.
Description
Technical Field
The invention relates to the technical field of aircraft simulation tests, in particular to a stiffness-adjustable piano spring type torque loading device.
Background
The steering engine is a key execution component for navigation of an aircraft, but when the actual flight condition of the aircraft is tested, the load torque of the steering engine cannot be independently tested, so that a device capable of simulating the load torque received by the steering engine under the actual flight condition is needed, and the load torque of the steering engine of the aircraft in actual work is simulated by using a torque loading device in a general method; 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 long length and large 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 of the torque loading device on strength and rigidity cannot be met;
accordingly, in view of the above, there is a need in the market for a torque loading device that can ensure both strength and rigidity and can be miniaturized.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses a piano spring type torque loading device with adjustable rigidity.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
a spring type torque loading device with adjustable rigidity comprises a base, a spring 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 positioning output mechanism capable of fixing the piano spring is arranged in the center of the opening of the base; the piano spring is composed of two key spring components which are arranged in parallel in an up-down structure, the key spring components comprise four key springs which are arranged in parallel along the horizontal direction, the key springs are composed of two spring rods and a connecting block, and the connecting block is correspondingly clamped and connected with the tail ends of the two spring rods; the head ends of the four spring rods positioned in the center of the piano spring are correspondingly connected with the clamping mechanism, the head ends of the four spring rods positioned at the two ends of the piano 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 piano spring are correspondingly connected through the clamping blocks;
preferably, the positioning output mechanism comprises an output shaft and a retaining block, the tail end of the output shaft correspondingly penetrates through the center of the opening end face of the base, and a cross positioning block is arranged on the head end face of the output shaft; 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 positioning block, and an adjusting cushion block I is arranged between each spring rod and the corresponding included angle; the holding blocks are of two C-shaped structures, the two holding blocks can correspondingly cover the cross positioning blocks, and meanwhile, the positions of the four spring rods are fixed;
preferably, a countersunk head type 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 head 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 positioning block is arranged on the baffle;
preferably, two grooves and a pressing plate capable of covering the notch of the groove are arranged on the outer side surfaces of the two vertical ends of the base, and the four grooves are correspondingly communicated with the end surfaces of the vertical ends of the base; the head ends of four spring rods positioned at two ends of the piano spring are correspondingly arranged in the four grooves, and an adjusting cushion block II is arranged between the side surfaces of the spring rods and the grooves;
preferably, the section of the rod body of the spring rod is circular, and the sections of the two ends of the spring rod are square;
preferably, the clamping blocks are used for connecting two horizontally adjacent spring rods.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
according to the stiffness-adjustable piano spring type torque loading device disclosed by the invention, through arranging the piano springs into a two-layer structure, the space occupied by the piano springs is smaller, and the requirement of miniaturization of the torque loading device is met; the two layers of key springs form a whole through the positioning output mechanism and the base, so that the rigidity of the piano springs is guaranteed to a certain extent, and the strength and the rigidity of the torque loading device are guaranteed;
in addition, through the output shaft in the rotation location output mechanism, can drive whole musical instrument spring and realize the function of simulation steering wheel load moment of torsion.
Drawings
FIG. 1 is a schematic diagram of a structure of the present invention;
FIG. 2 is a schematic diagram of a positioning output mechanism;
FIG. 3 is a schematic view of the A-A structure of FIG. 2.
In the figure: 1. a base; 101. a plug hole; 102. a groove; 2. a piano spring; 201. a spring rod; 202. a connecting block; 3. a positioning output mechanism; 301. an output shaft; 302. a cross positioning block; 303. a holding block; 4. a clamping block; 5. deep groove ball bearings; 6. adjusting a cushion block I; 7. a pressing plate; 8. and adjusting the cushion block II.
Detailed Description
In the description, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., the drawings merely correspond to the drawings of the present invention, and in order to facilitate description of the present invention, it is not indicated or implied that the device or element referred to must have a specific azimuth:
the stiffness-adjustable piano spring type torque loading device comprises a base 1, a piano spring 2 and a positioning output mechanism 3, wherein the piano spring type torque loading device is described by combining with the accompanying drawings 1-3; the base 1 is U-shaped, namely, an opening groove is formed in one end face of the base 1, the end part of the piano spring 2 is placed in the opening groove, and then the position of the piano spring 2 is fixed by utilizing the positioning output mechanism 3; the opening end of the base 1 is correspondingly connected with one end of the piano spring 2, the positioning output mechanism 3 capable of fixing the piano spring 2 is arranged in the center of the opening of the base 1, the positioning output mechanism 3 is connected with test equipment, and the test equipment drives a spring rod 201 in the piano spring 2 to act through the positioning output mechanism 3, so that the aim of simulating steering engine torque is fulfilled;
in addition, the positioning output mechanism 3 includes 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, the head end face of the output shaft 301 is provided with a cross positioning block 302, the tail end of the output shaft 301 is connected with corresponding testing equipment after penetrating through the base 1, the output shaft 301 can rotate under the driving of the testing equipment, and further the four spring rods 201 positioned in the center of the piano spring 2 are driven to twist by the cross positioning block 302, and the four spring rods 201 positioned at two ends of the piano spring 2 are fixedly installed 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 a steering engine is simulated; the head ends of the four spring rods 201 positioned in the center of the piano spring 2 are respectively positioned at four included angles of the cross positioning block 302, and an adjusting cushion block I6 is arranged between the spring rods 201 and the corresponding included angles, 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 piano spring device is improved; the two holding blocks 303 are in two C-shaped structures, the two holding blocks 303 can correspondingly cover the cross positioning blocks 302, meanwhile, the positions of the four spring rods 201 are fixed, the matching of the two holding blocks 303 can ensure that the four spring rods 201 can fix the spring rods 201 in the cross positioning blocks 302, in addition, the matching connection between the two holding blocks 303 is realized through bolts, through holes are formed in the vertical ends of the holding blocks 303, one ends of the bolts correspondingly penetrate through the through holes of the two holding blocks 303 and then are correspondingly connected with nuts, and finally, the fixed connection of the two holding blocks 303 is realized; according to the requirement, the center of the opening end surface of the base 1 is provided with a countersunk head type plug hole 101, the countersunk head part of the plug hole 101 is provided with a deep groove ball bearing 5, the tail end of the output shaft 301 correspondingly passes through the deep groove ball bearing 5 and the plug hole 101, the head end of the output shaft 301 is provided with a baffle, the deep groove ball bearing 5 is placed through a space formed by the baffle and the countersunk head part in the plug hole 101, so that the rotation of the output shaft 301 is smoother, the radial bearing capacity of the output shaft 301 is improved, and the baffle is provided with a cross positioning block 302;
the piano spring 2 is composed of two key spring components which are arranged in parallel in an up-down 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, each key spring is composed of two spring rods 201 and one connecting block 202, each connecting block 202 is correspondingly connected with the tail ends of the two spring rods 201 in a clamping mode, the tail ends of the plurality of spring rods 201 are limited through the plurality of connecting blocks 202, then the head ends of the plurality of spring rods 201 are limited through the matching of the positioning output mechanism 3, the base 1 and the clamping blocks 4, finally, the spatial position of the piano spring 2 is fixed, and because the two piano spring 2 components are of the up-down structure, the output shaft 301 drives the four spring rods 201 in the center of the piano spring 2 to rotate, a certain torque is provided when the output shaft 301 rotates, and the purpose of simulating load torque is achieved;
the head ends of the four spring rods 201 positioned in the center of the piano spring 2 are correspondingly connected with the clamping mechanism, the head ends of the four spring rods 201 positioned at the two ends of the piano spring 2 are correspondingly connected with the two vertical end faces of the base 1, two grooves 102 and a pressing plate 7 capable of covering the notch of the grooves 102 are respectively arranged on the outer side faces of the two vertical ends of the base 1 according to requirements, the four grooves 102 are correspondingly communicated with the vertical end faces of the base 1, the grooves 102 on the base 1 are arranged into square grooves, the width directions of the square grooves are in transition fit with the connecting sections of the spring rods 201, and the depth size of the square grooves is slightly smaller than the size of the connecting sections of the spring rods 201, so that the pressing plate 7 can press the head ends of the spring rods 201; the head ends of the four spring rods 201 positioned at two ends of the piano spring 2 are correspondingly arranged in the four grooves 102, an adjusting cushion block II 8 is arranged between the side surface of the spring rod 201 and the grooves 102, and 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 II 8, so that the overall rigidity of the piano spring 2 is improved, namely the overall loading rigidity of the piano spring device is improved; the head ends of the rest spring rods 201 in the piano spring 2 are correspondingly connected through the clamping blocks 4, in addition, the clamping blocks 4 are used for connecting two horizontally adjacent spring rods 201, namely, the clamping blocks 4 are in a corresponding parallel state with the connecting blocks 202, so that the two key spring assemblies are relatively independent, but are connected with the cross positioning blocks 302 together to form a whole, and 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 more facilitated.
The invention has not been described in detail in the prior art, and it is apparent to those skilled in the art that the invention is not limited to the 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.
Claims (5)
1. A rigidity-adjustable piano spring type torque loading device is characterized in that: 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 positioning output mechanism (3) capable of fixing the piano spring (2) is arranged at the center of the opening of the base (1); the positioning output mechanism (3) comprises an output shaft (301) and a retaining 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 of the piano spring (2) are respectively positioned at four included angles of a cross 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 positioning blocks (302), and meanwhile the positions of the four spring rods (201) are fixed;
the piano spring (2) is composed of two key spring components which are arranged in parallel in an up-down structure, each key spring component comprises four key springs which are arranged in parallel in the horizontal direction, each key spring is composed of two spring rods (201) and a connecting block (202), and the connecting blocks (202) are correspondingly clamped and connected with the tail ends of the two spring rods (201); the head ends of four spring rods (201) positioned in the center of the piano spring (2) are correspondingly connected with the clamping mechanism, the head ends of the four spring rods (201) positioned at two ends of the piano 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 piano spring (2) are correspondingly connected through the clamping blocks (4).
2. The stiffness adjustable piano spring type torque loading device according to claim 1, wherein: the novel socket is characterized in that a countersunk plug 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 hole (101), the tail end of the output shaft (301) correspondingly penetrates through the deep groove ball bearing (5) and the plug 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.
3. The stiffness adjustable piano spring type torque loading device according to claim 1, wherein: two grooves (102) and pressing plates (7) capable of covering the notches of the grooves (102) are formed in the outer side faces of the two vertical ends of the base (1), and the four grooves (102) are correspondingly communicated with the end faces of the vertical ends of the base (1); the head ends of four spring rods (201) positioned at two ends of the piano spring (2) are correspondingly arranged in the four grooves (102), and an adjusting cushion block II (8) is arranged between the side surfaces of the spring rods (201) and the grooves (102).
4. The stiffness adjustable piano spring type torque loading device according to claim 1, wherein: the section of the rod body of the spring rod (201) is round, and the sections of the two ends of the spring rod (201) are square.
5. The stiffness adjustable piano spring type torque loading device according to claim 1, wherein: the clamping blocks (4) are 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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| Publication Number | Publication Date |
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| CN114018726A CN114018726A (en) | 2022-02-08 |
| CN114018726B true CN114018726B (en) | 2023-11-21 |
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