CN217542207U

CN217542207U - Test arrow leveling force measuring device and system

Info

Publication number: CN217542207U
Application number: CN202220775135.5U
Authority: CN
Inventors: 王登; 戴政; 张昌武
Original assignee: Landspace Technology Co Ltd
Current assignee: Zhejiang Landspace Technology Co Ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-10-04
Anticipated expiration: 2032-04-06

Abstract

The utility model provides a leveling measuring force device and system of experimental arrow, the leveling measuring force device of experimental arrow includes: the force measuring module is used for measuring the pressure on one arrow foot of the test arrow; the ball hinge module supports one arrow foot of the test arrow and transmits the forces of the test arrow in different directions to the force measuring module; and the lifting module is arranged below the force measuring module and is used for participating in the leveling of the test arrow. The device can meet the test requirements of test arrows with different diameters, is compact in design structure, has few motion transmission steps among mechanisms, and is high in mechanical efficiency.

Description

Test arrow leveling force measuring device and system

Technical Field

The utility model relates to an experimental arrow field, concretely relates to experimental arrow leveling force measuring device and system.

Background

In the research of test arrow recycling technology, a vertical take-off and landing test (namely, a VTVL test) is a key step for verifying the correctness of the overall technical path. In recent years, due to the fact that the overall scheme, the size, the weight and the like of the test arrow of the VTVL at home and abroad are different, the test verification platform of the VTVL is also different, and particularly, a test support system is basically in a customized nonstandard design. To a certain extent, the problems of too long development time and increased cost occur.

In view of this, it is desirable to design a test arrow leveling force measuring device and system that have compact modular structure and can adapt to different diameters and takeoff weights within a certain range.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide an experimental arrow leveling measuring force device and system.

The utility model provides a leveling measuring force device of experimental arrow, include: the force measuring module is used for measuring the pressure on one arrow foot of the test arrow; the ball hinge module supports one arrow foot of the test arrow and transmits the forces of the test arrow in different directions to the force measuring module; and the lifting module is arranged below the force measuring module and is used for participating in the leveling of the test arrow.

According to the utility model discloses an embodiment, the ball pivot module includes bulb seat, ball pivot and ball pivot seat, the bulb seat is used for supporting an arrow foot of experimental arrow, the ball pivot is fixed on the bulb seat, the ball pivot seat is mobilizable be connected to on the ball pivot.

According to an embodiment of the present invention, the ball hinge seat is a U-shape passing through a cross section of a spherical center of the ball hinge, and both sides can be opened outward by 15 to 30 degrees.

According to the utility model discloses an embodiment, the force cell module is force cell sensor, force cell sensor's one end with the ball hinge seat passes through bolted connection, force cell sensor's the other end with lift module connects.

According to an embodiment of the invention, the lifting module comprises a prime mover, a speed reducer and a lift, the prime mover and the speed reducer are in one side of the lift is connected in series to provide power to the lift, driving the lift moves in a vertical direction.

According to an embodiment of the utility model, lifting module includes hand wheel and lift, through rotating the hand wheel provides power extremely the lift.

According to the utility model discloses an embodiment, the lift adopts the form of worm gear, and power passes through the worm is carried the worm wheel, the worm wheel is connected with helical structure and is converted the vertical screw force with horizontally power, helical structure with the dynamometry module is connected, and the screw force drives the dynamometry module removes along vertical direction.

According to the utility model discloses an embodiment, helical structure includes lead screw and slider, the lead screw includes the vice and the lead screw straight-bar of lead screw spiral, the vice embedding of lead screw spiral in the slider, the slider with worm wheel rotatable coupling, the lead screw straight-bar with force measuring module connects, the spiral power pulls the lead screw with force measuring module removes along vertical direction.

According to one embodiment of the present invention, the connection portion of the elevator installation is provided with an elastic vibration damping pad to reduce vibration; and a protective cover is arranged outside the spiral structure for protection.

On the other hand, the utility model provides a leveling dynamometry system of experimental arrow, include a plurality of leveling dynamometry devices that correspond with carrier arrow foot, the foretell leveling dynamometry device of a plurality of leveling dynamometry devices, wherein every leveling dynamometry device still includes the controller, and a plurality of controllers are connected to control terminal is according to setting up in the measured data of the inclination sensor of carrier engine frame, through the leveling action of controlling a plurality of controllers control leveling dynamometry devices.

According to the utility model discloses a test arrow leveling measuring force device and system builds force module, ball pivot module and lifting module through modular combination, can satisfy the experimental requirement of the test arrow of different diameters, and the step of transmission of motion is few between compact and the mechanism of design structure, and mechanical efficiency is high.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a schematic view of a leveling force measuring device of a test arrow according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the motion principle of a leveling force measuring device of a test arrow according to an embodiment of the present invention;

fig. 3 is a schematic view of a leveling force measurement system of a test arrow according to an embodiment of the present invention.

Reference numerals:

102-a force measuring module, 103-a spherical hinge module, 1031-a ball socket, 1032-a spherical hinge, 1033-a spherical hinge seat, 104-a lifting module, 1041-a prime mover, 1042-a reducer, 1043-a lifter, 1044-a hand wheel, 201-a frame, 202-an anti-tilting mechanism, 301-a worm wheel, 302-a worm, 303-a spiral structure, 3031-a screw rod, 3032-a sliding block, 304-a screw rod spiral pair, 305-a screw rod, 401-a controller, 402-a control terminal and 403-an inclination angle sensor.

Detailed Description

The features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, for the purposes of illustrating the principles of the invention. Additionally, the components in the drawings are not necessarily to scale. For example, the dimensions of some of the structures or regions in the figures may be exaggerated relative to other structures or regions to help improve understanding of embodiments of the present invention.

The directional terms appearing in the following description are directions shown in the drawings and do not limit the specific structure of the embodiments of the present invention. In the description of the present invention, it should be noted that, unless otherwise stated, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

Furthermore, the terms "comprises," "comprising," "includes," "including," "has," "having" or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure or component comprising a list of elements does not include only those elements but may include other mechanical components not expressly listed or inherent to such structure or component. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" 8230; "does not exclude the presence of additional like elements in an article or device comprising the element.

Spatial relationship terms such as "below," "at \8230," "lower," "above," "at \8230," "upper," "higher," and the like are used for convenience in description to explain the positioning of one element relative to a second element, indicating that the terms are intended to encompass different orientations of the device in addition to orientations different from those shown in the figures. Further, for example, the phrase "one element is over/under another element" may mean that the two elements are in direct contact, or that there is another element between the two elements. In addition, terms such as "first", "second", and the like are also used to describe various elements, regions, sections, etc. and should not be taken as limiting. Like terms refer to like elements throughout the description.

It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention.

FIG. 1 is a schematic view of a leveling force measuring device of a test arrow according to an embodiment of the present invention; FIG. 2 is a schematic diagram of the motion principle of a leveling force measuring device of a test arrow according to an embodiment of the present invention; FIG. 3 is a schematic view of a leveling force measurement system of a test arrow according to one embodiment of the present invention.

As shown in FIG. 1, the utility model provides a leveling force measuring device of experimental arrow, include: the force measuring module 102 is used for measuring the pressure applied to one arrow foot of the test arrow; the spherical hinge module 103 supports one arrow foot of the test arrow and transmits the forces of the test arrow in different directions to the force measuring module 102; and the lifting module 104 is arranged below the force measuring module 102 and is used for participating in the leveling of the test arrow.

Specifically, the utility model discloses a leveling force measuring device can be arranged in experimental arrow to retrieve multiplexing technical research, measures the pressure of placing if one of them arrow foot of experimental arrow through ball pivot module 103 and dynamometry module 102. The arrow feet of the test arrow can be three or even more, the pressure value of each arrow foot is different, and the test arrow is not in a horizontal state and needs to be leveled. The lifting force is transmitted to one arrow foot of the test arrow through the lifting module 104 to drive the arrow foot to be adjusted, so that the pressure value borne by each arrow foot is consistent, and the test arrow is in a horizontal state. It should be noted that the ball joint module 103 can transmit the forces of the test arrow in different directions to the force measuring module 102, so as to ensure accurate pressure data measured by the force measuring module 102.

The utility model discloses a leveling measuring force device adopts the modular design theory, builds the experimental requirement that can satisfy the experimental arrow of different diameters through the combination formula tower, and the step of motion transmission is few between compact design structure and mechanism, and mechanical efficiency is high. The test arrow has the advantages that the test arrow can meet the test requirements of test arrows with different diameters and takeoff masses through modular combination while the leveling force measuring function is met. In the application scheme of one embodiment, the leveling force-measuring device can measure the mass of the test arrow before and after filling, and the posture of the test arrow is monitored in time in the filling process and is kept in a horizontal state. The leveling force measuring device is also suitable for being used in test arrows for vertical takeoff and vertical landing, so that the performance of the reusable test arrow is verified, and the launching cost is reduced.

As an embodiment of the present invention, the protection device includes a frame 201 and an anti-tilting mechanism 202, the frame 201 is disposed outside the leveling force measuring device, and the anti-tilting mechanism 202 is disposed on both sides of the bearing plate.

The protection device comprises a rack 201 and an anti-tilting mechanism 202, wherein the rack 201 is arranged on the outer side of the leveling force measuring device, so that the components can be conveniently mounted, and the leveling force measuring device can be protected when propellant burns. The anti-tilting mechanisms 202 are arranged on two sides of the bearing plate, and as one embodiment, the anti-tilting mechanisms 202 are arranged on two sides of the lower side of the bearing plate and used for preventing the bearing plate from being greatly tilted and indirectly protecting the test arrow from rollover risks.

According to an embodiment of the present invention, the ball joint module 103 comprises a ball joint seat 1031, a ball joint 1032 and a ball joint seat 1033, the ball joint seat 1031 can be disposed under the load bearing plate, the ball joint 1032 is fixed on the ball joint seat 1031, and the ball joint seat 1033 is movably connected to the ball joint 1032.

Specifically, the spherical hinge module 103 is arranged below the bearing plate, and the force in the non-vertical direction is converted into the force in the vertical direction by the spherical hinge module 103, so that the accuracy of the arrow foot pressure measured by the force measuring module 102 is facilitated. The ball socket 1031 is of a flat plate structure and is connected to a force bearing plate through a bolt, wherein the ball hinge 1032 is of a spherical structure and is fixed on the ball socket 1031, the ball hinge 1032 cannot rotate relative to the ball socket 1031, and the ball hinge 1032 can rotate relative to the ball hinge seat 1033, so that the transmission of forces in different directions is realized. In addition, when the lifting module 104 participates in the lifting and leveling work, the spherical hinge module 103 can ensure that the force measuring module 102 does not generate unbalance loading.

According to an embodiment of the present invention, the ball hinge seat 1033 is a U-shape passing through a cross section of a ball center of the ball hinge, and both sides can be opened outward by 15 to 30 degrees.

Specifically, the ball hinge socket 1033 is U-shaped, and the ball hinge 1032 is wrapped inside, so that the ball hinge 1032 can be rotatably connected with respect to the ball hinge socket 1033, wherein both sides of the ball hinge socket 1033 can be opened outwards by 15-30 degrees. As an example, the ball hinge socket 1033 may be selectively opened in half by 20 degrees to facilitate the assembly of the ball hinge 1032. To accommodate the shape of the ball hinge 1032, the interior of the ball hinge socket 1033 is adapted to the shape of the ball hinge 1032 to facilitate rotation of the ball hinge 1032.

According to an embodiment of the present invention, the force measuring module 102 is a force measuring sensor, one end of the force measuring sensor is bolted to the ball hinge mount 1033, and the other end of the force measuring sensor is connected to the lifting module 104.

Specifically, a load cell is disposed below the spherical hinge module 103, one end of the load cell is connected to the spherical hinge base 1033 through a bolt, the other end of the load cell is connected to the lifting module 104, wherein the lifting module 104 may be provided with a docking flange connected to the load cell, and the docking flange is connected to the load cell through a bolt. Wherein, the load cell can select strain gauge load cell. It is worth mentioning that the ball seat 1031 and the docking flange can be provided with a plurality of threaded holes, when the takeoff weight of the test arrow changes within a certain range, if the measuring range of the force sensor does not meet the requirement, only the force sensor with the corresponding weight needs to be replaced, and the design is convenient for installing a plurality of types of force sensors; and when the diameter of the test arrow or the number of the supporting legs is changed, the mounting positions or the number of the leveling force measuring devices are adjusted to meet different test requirements of vertical takeoff and vertical landing.

According to an embodiment of the present invention, the lifting module 104 includes a prime mover 1041, a speed reducer 1042 and a lifter 1043, the prime mover 1041 and the speed reducer 1042 are connected in series on one side of the lifter 1043 to provide power to the lifter 1043, and the lifter 1043 is driven to move in a vertical direction.

Specifically, in order to realize the leveling function of the test arrow, the lifting module 104 is required to include a prime mover 1041, a speed reducer 1042 and a lifter 1043, the prime mover 1041 and the speed reducer 1042 are connected in series on one side of the lifter 1043 to provide power to the lifter 1043, and the lifter 1043 is driven to move in the vertical direction of the leveling force measuring device, so as to drive the arrow foot of the test arrow to ascend or descend. The prime mover 1041 and the reducer 1042 are located in the horizontal direction of the leveling force measuring device, and the lifter 1043 converts the force in the horizontal direction into a force in the vertical direction and transmits the force to the arrow foot of the test arrow. The prime mover 1041 may be selected from a member having a driving function such as an electric motor or a hydraulic motor, and the reduction gear unit 1042 may be selected from a gear reduction gear unit 1042.

According to an embodiment of the present invention, lift module 104 includes a handwheel 1044 and a lift 1043, and provides power to lift 1043 by rotating handwheel 1044.

Specifically, the lifting module 104 may be driven by a motor, or may be driven manually, to provide power to the lifter 1043 by rotating the handwheel 1044. It should be noted that if the two methods are used together, the prime mover 1041 and the speed reducer 1042 are placed on one side of the elevator 1043, and the hand wheel 1044 is placed on the other side of the elevator 1043, when the prime mover 1041 and the speed reducer 1042 fail or fail, the elevator 1043 can be adjusted by driving the hand wheel 1044. Moreover, the hand wheel 1044 interface design and device modularization combination in the lifter 1043 can be adapted to the requirements of places with severe natural environment and mobility.

As shown in fig. 2, according to an embodiment of the present invention, the lifter 1043 is in the form of a worm wheel 301 and a worm 302, the power is transmitted to the worm wheel 301 through the worm 302, the worm wheel 301 is connected with a spiral structure 303 to convert the horizontal power into vertical spiral force, the spiral structure 303 is connected with the force measuring module 102, and the spiral force drives the force measuring module 102 to move along the vertical direction.

Specifically, the lifter 1043 can convert the horizontal power of the prime mover 1041 and the reducer 1042 into vertical power, and needs to adopt the form of a worm wheel 301 and a worm 302, the power is transmitted to the worm wheel 301 through the worm 302, the worm wheel 301 is connected with the spiral structure 303 to convert the horizontal power into vertical spiral force, the spiral structure 303 is connected with the force measuring module 102, and the spiral force drives the force measuring module 102 to move along the vertical direction.

According to an embodiment of the utility model, helical structure 303 includes lead screw 3031 and slider 3032, and lead screw 3031 includes lead screw spiral pair 304 and lead screw straight-bar 305, and lead screw spiral pair 304 is embedded into slider 3032, and slider 3032 and worm wheel 301 rotatable coupling, lead screw straight-bar 305 are connected with dynamometry module 102, and lead screw 3031 and dynamometry module 102 are pull to the screw power and move along vertical direction.

Specifically, the screw structure 303 in the lifter 1043 can convert the rotational force of the worm wheel into a screw force through the lead screw 3031 and the slider 3032. The screw rod 3031 comprises a screw rod screw pair 304 and a screw rod 305, the screw rod screw pair 304 is embedded into a sliding block 3032, and the sliding block 3032 is rotatably connected with the worm wheel 301. The rotating force of the turbine can drive the sliding block 3032 to rotate, the embedded screw rod screw pair 304 cannot rotate, and the screw rod 3031 is prompted to move up and down along with the rotation of the sliding block 3032. Since the lead screw straight rod 305 is connected to the load cell module 102, the screw force pulls the lead screw 3031 and the load cell module 102 to move up and down in the vertical direction.

According to the utility model discloses an embodiment, frame 201 includes middle part frame and bottom frame, and the middle part frame corresponds to set up in the force measuring module 102 outside, and the bottom frame corresponds the setting in the lifting module 104 outside.

Specifically, the middle frame and the bottom frame of the frame 201 surround all the components below the bearing plate in the leveling force measuring device, so as to effectively protect the safety of each component as a protective outer cover, wherein the middle frame is correspondingly arranged outside the force measuring module 102, and the bottom frame is correspondingly arranged outside the lifting module 104. As one embodiment, the middle frame is further used to assist in installing the lifting module 104, so that the lifting module 104 has a supporting force during operation, and vibration of the lifting module 104 can be effectively reduced. For convenience of maintenance and operation, a plurality of inspection doors can be arranged on the middle rack.

As shown in fig. 3, on the other hand, the present invention further provides a leveling force measuring system for a test arrow, comprising a plurality of leveling force measuring devices corresponding to the arrow feet of a carrier, wherein the plurality of leveling force measuring devices are the leveling force measuring devices as described above, each leveling force measuring device further comprises a controller 401, the plurality of controllers 401 are connected to a control terminal 402, so that the control terminal 402 controls the leveling action of the leveling force measuring devices by controlling the plurality of controllers 401 according to the measurement data of the tilt sensor 403 arranged on the engine frame 201 of the carrier.

Specifically, a corresponding number of leveling force measuring devices are arranged according to the number of arrow feet of the test arrow and are respectively placed below each arrow foot, the tilt angle sensor 403 on the engine frame 201 of the test arrow is arranged at the middle position of the carrier, and the direction of the tilt angle sensor is consistent with the quadrant of the test arrow body. As one example, the tilt sensor 403 may be a dual-axis sensor, and the measured data reflects the tilt angle of the test arrow. The inclination angle sensor 403 and the controller 401 of each leveling force measuring device are connected to the control terminal 402, and the control terminal 402 realizes the functions of automatic leveling, real-time force measurement and display of the test arrow in a closed-loop control mode.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a leveling force measuring device of experimental arrow which characterized in that includes:

the force measuring module is used for measuring the pressure applied to one arrow foot of the test arrow;

the ball hinge module supports one arrow foot of the test arrow and transmits the forces of the test arrow in different directions to the force measuring module;

and the lifting module is arranged below the force measuring module and is used for participating in the leveling of the test arrow.

2. The device according to claim 1, wherein the ball joint module comprises a ball joint seat, a ball joint and a ball joint seat, the ball joint seat is used for supporting one arrow foot of the test arrow, the ball joint is fixed on the ball joint seat, and the ball joint seat is movably connected to the ball joint.

3. The leveling force-measuring device of the test arrow according to claim 2, wherein the ball hinge seat is U-shaped in cross section passing through the center of the ball hinge, and two sides of the ball hinge seat can be opened outwards by 15-30 degrees.

4. The leveling and force-measuring device of a test arrow of claim 2, wherein the force-measuring module is a force-measuring sensor, one end of the force measuring sensor is connected with the spherical hinge seat through a bolt, and the other end of the force measuring sensor is connected with the lifting module.

5. The test arrow leveling force measuring device of claim 1, wherein the lifting module comprises a prime mover, a speed reducer and a lift, the prime mover and the speed reducer being connected in series on one side of the lift to provide power to the lift to drive the lift to move in a vertical direction.

6. The test arrow leveling and force measuring device of claim 1, wherein the lifting module comprises a hand wheel and a lift, and power is provided to the lift by rotating the hand wheel.

7. The test arrow leveling and force measuring device according to any one of claims 5 or 6, wherein the elevator is in the form of a worm gear, power is transmitted to the worm gear through the worm, the worm gear is connected with a spiral structure to convert horizontal power into vertical spiral force, the spiral structure is connected with the force measuring module, and the spiral force drives the force measuring module to move along the vertical direction.

8. The test arrow leveling and force measuring device according to claim 7, wherein the screw structure comprises a screw rod and a slide block, the screw rod comprises a screw rod screw pair and a screw rod, the screw rod screw pair is embedded into the slide block, the slide block is rotatably connected with the worm wheel, the screw rod is connected with the force measuring module, and the screw force pulls the screw rod and the force measuring module to move along a vertical direction.

9. The test arrow leveling and force measuring device according to claim 8, wherein an elastic damping pad is arranged at the connecting part for installing the lifter to reduce vibration; and a protective cover is arranged outside the spiral structure for protection.

10. A leveling force measuring system of a test arrow is characterized by comprising a plurality of leveling force measuring devices corresponding to arrow feet of a carrier, wherein the leveling force measuring devices are the leveling force measuring devices according to any one of claims 1-9, each leveling force measuring device further comprises a controller, and the controllers are connected to a control terminal, so that the control terminal controls the leveling action of the leveling force measuring devices by controlling the controllers according to measurement data of an inclination angle sensor arranged on an engine frame of the carrier.