CN218431680U - Double-rod type buoyancy adjusting device and underwater glider - Google Patents
Double-rod type buoyancy adjusting device and underwater glider Download PDFInfo
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- CN218431680U CN218431680U CN202222520533.5U CN202222520533U CN218431680U CN 218431680 U CN218431680 U CN 218431680U CN 202222520533 U CN202222520533 U CN 202222520533U CN 218431680 U CN218431680 U CN 218431680U
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Abstract
The utility model relates to an underwater vehicle buoyancy adjusts technical field, discloses a two rod-type buoyancy adjusting device and glider under water, and buoyancy adjusting device includes: a plunger; a motor; the first screw rod assembly comprises a first screw rod and a first fixing block which is assembled on the first screw rod in a threaded mode, the first screw rod is in transmission connection with the motor, and the first fixing block is fixed with the plunger; the second screw rod assembly comprises a second screw rod and a second fixed block which is assembled on the second screw rod in a threaded mode, the second screw rod is in transmission connection with the motor, and the second fixed block is fixed with the plunger; the first screw rod and the second screw rod are parallel to the central axis of the plunger and are symmetrical relative to the central axis, the rotating directions of the first screw rod and the second screw rod are opposite, and the motor drives the first screw rod and the second screw rod to rotate reversely, so that the first fixing block and the second fixing block drive the plunger to move linearly. The utility model discloses need not install additional and prevent the rotation structure, two lead screw subassemblies all can be arranged in the position that is close to the plunger center, reduce buoyancy adjusting device's whole size.
Description
Technical Field
The utility model relates to an underwater vehicle buoyancy adjusts technical field, especially relates to a two-rod type buoyancy adjusting device and glider under water.
Background
The underwater glider is a novel underwater robot, can realize large-range and large-depth movement, can be used as a marine environment monitoring platform, and can observe and detect a complex marine environment for a long time and in a large range. The underwater glider realizes heave by adjusting buoyancy and glides in water by hydrodynamic force. At present, an underwater glider generally uses an electric push plunger type buoyancy adjusting device, a motor is decelerated by a gear to drive a pair of screw rods and nuts to move, the rotary motion of the motor is converted into linear motion, and the linear pushing action of a plunger is completed by utilizing the forward and reverse rotation of the motor. When the lead screw is rotatory, the nut keeps not rotating and can effectively convert the rotary motion of motor into linear motion, consequently, need to increase the structure that prevents the nut rotation at buoyancy adjusting device, for example, slide bar, linear bearing etc. however, prevent that rotary structure only plays anti-rotation effect to the nut, can not provide the motive force to the plunger, the side position at the plunger is generally fixed to nut anti-rotation structure, can lead to the plunger diameter increase, increase buoyancy adjusting device's size, thereby increase buoyancy adjusting device's occupation space in the pressure-resistant casing of glider.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model aims at providing a two rod-type buoyancy adjusting device and glider under water to the buoyancy adjusting device who solves current glider under water need set up the nut and prevents revolution mechanic, increases the plunger size, increases buoyancy adjusting device occupation space's problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an aspect of the utility model is to provide a two rod-type buoyancy adjusting device, including the plunger, still include:
a motor;
the first screw rod assembly comprises a first screw rod and a first fixing block assembled on the first screw rod in a threaded manner, the first screw rod is in transmission connection with the motor, and the first fixing block is fixed with the plunger;
the second screw rod assembly comprises a second screw rod and a second fixed block which is assembled on the second screw rod in a threaded mode, the second screw rod is in transmission connection with the motor, and the second fixed block is fixed with the plunger;
the first lead screw and the second lead screw are arranged in parallel with the central axis of the plunger, the first lead screw and the second lead screw are symmetrically arranged relative to the central axis of the plunger, the rotating directions of the first lead screw and the second lead screw are opposite, and the motor drives the first lead screw and the second lead screw to rotate reversely, so that the first fixed block and the second fixed block drive the plunger to move linearly.
Preferably, the first fixed block and the first screw rod are coaxially arranged, and the second fixed block and the second screw rod are coaxially arranged.
Preferably, an end plate is arranged at one end of the plunger, and the first fixing block and the second fixing block are fixed on the end plate.
Preferably, the first fixing block and the second fixing block are respectively arranged at intervals with the inner side wall of the plunger.
Preferably, the double-rod buoyancy adjusting device further comprises a housing, wherein one end of the housing is provided with an end cover, the other end of the housing is provided with an opening through which the plunger penetrates, and the plunger is coaxially arranged in the housing.
Preferably, the first screw rod is sleeved with a first bearing, the second screw rod is sleeved with a second bearing, and the first bearing and the second bearing are both installed in the end cover.
Preferably, one or both of the first bearing and the second bearing are angular contact bearings.
Preferably, a first gear is installed at one end of the first screw rod, a second gear is installed at one end of the second screw rod, the first gear is meshed with the second gear, and the motor is in transmission connection with the second screw rod.
Preferably, the first fixing block and the second fixing block are both nuts.
Another aspect of the present invention is to provide an underwater glider, which comprises a glider main body and a double-rod type buoyancy adjusting device as described above, wherein the double-rod type buoyancy adjusting device is installed in the glider main body.
The embodiment of the utility model provides a two rod-type buoyancy adjusting device and glider under water compares with prior art, and its beneficial effect lies in:
the utility model discloses two rod-type buoyancy adjusting device and glider under water, set up first lead screw subassembly and second lead screw subassembly, first lead screw, the second lead screw all with the central axis parallel arrangement of plunger, and first lead screw, the second lead screw sets up for the central axis symmetry of plunger, the rotation direction of first lead screw and second lead screw is opposite, first fixed block and second fixed block all are fixed with the plunger, when motor drive first lead screw and second lead screw reverse rotation, because of the rotation direction of first lead screw and second lead screw is opposite, first lead screw and second lead screw drive first fixed block and second fixed block syntropy removal, first fixed block and second fixed block drive plunger linear motion, and two screws that rotate to opposite have offset rotary torque mutually, avoid first fixed block, the second fixed block is rotatory, and need not install additional anti-rotation structure, two lead screw subassemblies can all be arranged in the position that is close to the plunger center, reduce the plunger diameter, reduce buoyancy adjusting device's whole size, reduce occupation space.
Drawings
Fig. 1 is a front view of a double-rod buoyancy adjusting device according to an embodiment of the present invention;
FIG. 2 isbase:Sub>A sectional view taken along line A-A in FIG. 1;
in the figure, 1, a plunger; 11. an end plate; 2. a motor; 21. a reduction gear; 3. a first lead screw assembly; 31. a first lead screw; 32. a first fixed block; 4. a second lead screw assembly; 41. a second screw rod; 42. a second fixed block; 5. a housing; 51. an end cap; 6. a first bearing; 7. a second bearing; 8. a first gear; 9. a second gear.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, a double-rod buoyancy adjusting device according to an embodiment of the present invention includes a plunger 1, a motor 2, a first lead screw assembly 3 and a second lead screw assembly 4, wherein the first lead screw assembly 3 includes a first lead screw 31 and a first fixing block 32, the first lead screw 31 is in transmission connection with the motor 2, the first fixing block 32 is provided with an internal thread hole, the first fixing block 32 is assembled on the first lead screw 31 by a thread, and the first fixing block 32 is fixed to the plunger 1; the second screw rod assembly 4 comprises a second screw rod 41 and a second fixing block 42, the second screw rod 41 is in transmission connection with the motor 2, the second fixing block 42 is provided with an internal thread hole, the second fixing block 42 is assembled on the second screw rod 41 in a threaded mode, and the second fixing block 42 is fixed with the plunger 1; the first screw rod 31 and the second screw rod 41 are both arranged in parallel with the central axis of the plunger 1, the first screw rod 31 and the second screw rod 41 are symmetrically arranged relative to the central axis of the plunger 1, the thread turning directions of the first screw rod 31 and the second screw rod 41 are opposite, and the motor 2 drives the first screw rod 31 and the second screw rod 41 to rotate reversely, so that the first fixing block 32 and the second fixing block 42 drive the plunger 1 to move linearly.
When the motor 2 drives the first lead screw 31 and the second lead screw 41 to rotate reversely, the thread turning directions of the first lead screw 31 and the second lead screw 41 are opposite, the first lead screw 31 and the second lead screw 41 drive the first fixing block 32 and the second fixing block 42 to move in the same direction, the first fixing block 32 and the second fixing block 42 drive the plunger 1 to move linearly, two lead screws with opposite turning directions offset the rotation moment mutually, the first fixing block 32 is avoided, the second fixing block 42 is rotated, and an anti-rotation structure is not required to be additionally arranged, the two lead screw assemblies can be arranged at positions close to the center of the plunger 1, the diameter of the plunger 1 is reduced, the overall size of the buoyancy adjusting device is reduced, and the occupied space is reduced.
In this embodiment, the first fixing block 32 is coaxially disposed with the first screw rod 31, and the second fixing block 42 is coaxially disposed with the second screw rod 41. The first fixing block 32 and the second fixing block 42 have the same structural form, and the first fixing block 32 and the second fixing block 42 are symmetrically arranged relative to the central axis of the plunger.
In this embodiment, an end plate 11 is provided at one end of the plunger 1, the plunger 1 is cylindrical, and the plunger 1 and the end plate 11 may be provided integrally or separately. The first fixing block 32 and the second fixing block 42 are fixed on the end plate 11 and may be located on an inner side surface or an outer side surface of the end plate 11, wherein the inner side is a side facing the inner space of the plunger 1. The first screw rod 31 drives the first fixing block 32 to move, the second screw rod 41 drives the second fixing block 42 to move, the first fixing block 32 and the second fixing block 42 drive the plunger 1 to move linearly, and the first fixing block 32 and the second fixing block 42 both play a role in pushing the plunger 1, so that the structural efficiency is improved.
Further, the first fixing block 32 and the second fixing block 42 are respectively arranged at intervals with the inner side wall of the plunger 1, so that the influence on the size of the plunger 1 is reduced. First fixed block 32 and second fixed block 42 may be both disposed at a position close to the center of plunger 1, which is beneficial to reducing the diameter of plunger 1.
Optionally, the first fixing block 32 and the second fixing block 42 are both nuts. In other embodiments, the first and second fixing blocks 32 and 42 may also be in the form of a fixing sleeve or a fixing block having an internal threaded hole.
In this embodiment, the double-rod buoyancy adjusting device further includes a housing 5, the housing 5 is hollow, an end cover 51 is disposed at one end of the housing 5, an opening through which the plunger 1 passes is disposed at the other end of the housing 5, the plunger 1 is coaxially disposed in the housing 5, and the plunger 1 enters and exits the housing through the opening. The housing 5 and the plunger 1 are both hollow cylinders.
Further, a first bearing 6 is sleeved on the first screw rod 31, a second bearing 7 is sleeved on the second screw rod 41, the first bearing 6 and the second bearing 7 are both installed in the end cover 51, the position of the first screw rod 31 is limited through the first bearing 6, the position of the second screw rod 41 is limited through the second bearing 7, and axial sliding or radial sliding of the first screw rod 31 and the second screw rod 41 is avoided.
Preferably, one or both of the first bearing 6 and the second bearing 7 are angular contact bearings. The angular contact bearing can play a good role in axial and radial limiting for the corresponding screw rod.
In this embodiment, a first gear 8 is installed at one end of the first lead screw 31, a second gear 9 is installed at one end of the second lead screw 41, the first gear 8 is engaged with the second gear 9, the motor 2 is in transmission connection with the second lead screw 41, furthermore, a reduction gear set is installed on an output shaft of the motor 2, and the second lead screw 41 is installed on the reduction gear 21. The motor 2 drives the second lead screw 41 to rotate, the second lead screw 41 drives the second gear 9 to rotate, and the second gear 9 drives the first gear 8 to rotate in the opposite direction, so that the rotation directions of the first lead screw 31 and the second lead screw 41 are opposite. The first gear 8 and the second gear 9 are the same size so that the first screw 31 and the second screw 41 rotate at the same speed.
In this embodiment, the first lead screw 31 sequentially passes through the first gear 8, the first bearing 6 and the first fixing block 32, and the second lead screw 41 sequentially passes through the second gear 9, the second bearing 7 and the second fixing block 42.
The utility model also provides an underwater glider, including the glider main part with as above two rod-type buoyancy adjusting device, two rod-type buoyancy adjusting device install in the glider main part.
The utility model discloses a working process does:
after the motor 2 is decelerated by the deceleration gear set, the second lead screw 41 is driven to rotate, the second lead screw 41 drives the second gear 9 to rotate, the second gear 9 is meshed with the first gear 8, the second gear 9 drives the first gear 8 to rotate at the same speed, the rotating directions of the first gear 8 and the second gear 9 are opposite, the first gear 8 drives the first lead screw 31 to rotate, the rotating directions of the first lead screw 31 and the second lead screw 41 are opposite, and the rotating directions of the first lead screw 31 and the second lead screw 41 are opposite, so that the first fixing block 32 and the second fixing block 42 linearly move in the same direction, and the plunger 1 is driven to linearly move. The two screw rods with opposite rotating directions offset the rotating moment mutually, so that an anti-rotating structure does not need to be additionally arranged.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a two rod-type buoyancy adjustment device, includes the plunger, its characterized in that still includes:
a motor;
the first screw rod assembly comprises a first screw rod and a first fixed block which is assembled on the first screw rod in a threaded mode, the first screw rod is in transmission connection with the motor, and the first fixed block is fixed with the plunger;
the second screw rod assembly comprises a second screw rod and a second fixed block which is assembled on the second screw rod in a threaded manner, the second screw rod is in transmission connection with the motor, and the second fixed block is fixed with the plunger;
the first lead screw and the second lead screw are arranged in parallel with the central axis of the plunger, the first lead screw and the second lead screw are symmetrically arranged relative to the central axis of the plunger, the rotating directions of the first lead screw and the second lead screw are opposite, and the motor drives the first lead screw and the second lead screw to rotate reversely, so that the first fixed block and the second fixed block drive the plunger to move linearly.
2. The dual-rod buoyancy regulating device according to claim 1, wherein the first fixing block is coaxially disposed with the first screw, and the second fixing block is coaxially disposed with the second screw.
3. A dual rod buoyancy regulating device according to claim 1, wherein an end plate is provided at one end of the plunger, and the first and second fixing blocks are fixed to the end plate.
4. The dual rod buoyancy adjusting device of claim 3, wherein the first fixed block and the second fixed block are spaced apart from an inner sidewall of the plunger, respectively.
5. The dual-rod buoyancy regulating device according to claim 1, further comprising a housing having an end cap at one end and an opening at the other end through which the plunger passes, the plunger being coaxially disposed within the housing.
6. The dual rod buoyancy adjusting device according to claim 5, wherein the first lead screw is sleeved with a first bearing, the second lead screw is sleeved with a second bearing, and the first bearing and the second bearing are both mounted in the end cover.
7. The dual rod buoyancy regulating device of claim 6, wherein one or both of the first bearing and the second bearing are angular contact bearings.
8. The dual-rod buoyancy adjusting device according to claim 5, wherein a first gear is mounted at one end of the first screw rod, a second gear is mounted at one end of the second screw rod, the first gear is engaged with the second gear, and the motor is in transmission connection with the second screw rod.
9. The dual-rod buoyancy adjusting device according to claim 1, wherein the first fixing block and the second fixing block are both nuts.
10. An underwater glider comprising a glider body and a dual-rod buoyancy adjusting device according to any one of claims 1 to 9, the dual-rod buoyancy adjusting device being installed in the glider body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222520533.5U CN218431680U (en) | 2022-09-22 | 2022-09-22 | Double-rod type buoyancy adjusting device and underwater glider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222520533.5U CN218431680U (en) | 2022-09-22 | 2022-09-22 | Double-rod type buoyancy adjusting device and underwater glider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218431680U true CN218431680U (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222520533.5U Active CN218431680U (en) | 2022-09-22 | 2022-09-22 | Double-rod type buoyancy adjusting device and underwater glider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218431680U (en) |
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2022
- 2022-09-22 CN CN202222520533.5U patent/CN218431680U/en active Active
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