CN115096502A - Suspension device for single-wire suspension torsion pendulum and single-wire suspension torsion pendulum - Google Patents
Suspension device for single-wire suspension torsion pendulum and single-wire suspension torsion pendulum Download PDFInfo
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- CN115096502A CN115096502A CN202210498925.8A CN202210498925A CN115096502A CN 115096502 A CN115096502 A CN 115096502A CN 202210498925 A CN202210498925 A CN 202210498925A CN 115096502 A CN115096502 A CN 115096502A
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- damping
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- 239000000725 suspension Substances 0.000 title claims abstract description 120
- 230000007246 mechanism Effects 0.000 claims abstract description 78
- 238000013016 damping Methods 0.000 claims description 49
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
Abstract
The invention discloses a suspension device of a monofilament suspension torsion pendulum and the monofilament suspension torsion pendulum, comprising: hang mechanism and connect in the crossbeam of hanging mechanism one end, hang the mechanism and include: suspension of silk; a first securing assembly for securing an end of a suspension wire, comprising: the first clamping mechanism is used for clamping the suspension wires; the sleeve frame is sleeved outside the first clamping mechanism and used for limiting the first clamping mechanism; the driving end of the driving mechanism is connected to the first clamping mechanism and used for driving the first clamping mechanism to enable the first clamping mechanism to be separated from the limit of the sleeve frame; and the second fixing component is used for fixing the other end of the suspension wire and arranged on the cross beam. The suspension wire fixing device fixes the suspension wire through the first fixing assembly and the second fixing assembly, and meanwhile, the suspension wire fixing device is convenient to replace when needing to be replaced.
Description
Technical Field
The invention relates to the field of measurement systems of micro-thrust devices, in particular to a suspension device for a monofilament suspension torsion pendulum and the monofilament suspension torsion pendulum.
Background
With the progress of science and technology, the micro thruster technology is widely applied to many fields such as aerospace and the like, and the micro thrust measurement technology in the ground test of the thruster is a key technology. The weak force measuring device of the existing micro thruster mostly uses standard force to calibrate the torsion pendulum, however, the fixation of the suspension wire in the prior art is only carried out through a simple clamp, and once the weight on the cross beam is too large, the suspension wire is easy to separate from the clamp. In addition, in the prior art, the replacement of the suspension wires is also very inconvenient
Disclosure of Invention
In order to solve the technical problems, the invention provides a suspension device for a monofilament suspension torsion pendulum, which fixes a suspension wire through a first fixing component and a second fixing component and is convenient to replace when needing to be replaced.
The invention also provides a monofilament suspension torsion pendulum, which is used for fixing the cross beam when the suspension wires are replaced, so that the balance time after the suspension wires are replaced can be reduced.
The invention adopts the following technical scheme:
a suspension device for a monofilament suspended torsion pendulum comprising: hang mechanism and connect in the crossbeam of hanging mechanism one end, hang the mechanism and include:
suspension of the filaments;
a first securing assembly for securing an end of a suspension wire, comprising:
the first clamping mechanism is used for clamping the suspension wires;
the sleeve frame is sleeved outside the first clamping mechanism and used for limiting the first clamping mechanism;
the driving end of the driving mechanism is connected to the first clamping mechanism and used for driving the first clamping mechanism to enable the first clamping mechanism to be separated from the limit of the sleeve frame;
the second fixing component is used for fixing the other end of the suspension wire, is arranged on the cross beam, and is used for fixing the suspension wire through the first fixing component and the second fixing component, so that the fixing effect is good, the suspension wire can be prevented from being separated, and meanwhile, the fixing mode of the invention is convenient to replace when the suspension wire needs to be replaced.
Preferably, the first clamping mechanism comprises a clamping shell, a first clamp and a second clamp, the first clamp and the second clamp are arranged on the clamping shell, the suspension wires are doubly fixed through the first clamp and the second clamp, the connection stability is improved, and the suspension wires are prevented from being separated in use.
Preferably, one side of the clamping shell is provided with a first mounting hole, the first clamp is movably matched in the first mounting hole and tightly presses the suspension wire on the inner wall of the clamping shell, and the suspension wire extends out of the center of the clamping shell, so that the suspension wire is coaxial with the center line of the first fixing assembly structure, and the influence on an experimental result is prevented.
Preferably, a second mounting hole is formed in one side of the clamping shell, the second clamp is detachably matched in the second mounting hole, a fixing hole for fixing the suspension wire is formed in the second clamp, and a fixing portion for fixing the second clamp is arranged on the inner wall of the clamping shell, so that the second clamp is fixed, and the suspension wire is prevented from being separated.
Preferably, the clamping device further comprises a limiting part, a limiting groove is formed in the end face of the clamping shell, and the limiting part penetrates through a first limiting hole of the first clamp and a second limiting hole of the second clamp to be detachably arranged in the limiting groove.
Preferably, the first clamp comprises at least two clamping pieces hinged to one end of the clamping shell, and an elastic piece is arranged between every two adjacent clamping pieces.
A monofilament suspended torsion pendulum comprising:
a frame;
one end of the suspension mechanism is connected to the rack;
the thruster to be tested is arranged at one end of the cross beam;
and the standard cold air thruster is arranged at the other end of the cross beam.
Preferably, still including setting up the damping subassembly in the frame, the damping subassembly includes the damping end, be equipped with on the crossbeam and realize crossbeam fast and stable's damping portion with the damping end cooperation, when changing the suspension wire, can fix the crossbeam through the damping subassembly, take place to rock when preventing to change the suspension wire, can reduce the balance adjustment time after changing the suspension wire.
Preferably, the damping assembly is provided with a damping driving mechanism for driving the damping end to move up and down.
Preferably, the damping component is a U-shaped structure transversely arranged, and the two end parts are damping ends.
Compared with the prior art, the invention has the following advantages:
1. the suspension device for the monofilament suspension torsion pendulum has the advantages that the suspension wires are fixed through the first fixing assembly and the second fixing assembly, the fixing effect is good, the suspension wires can be prevented from being separated, and meanwhile, the fixing mode is convenient to replace when the suspension wires need to be replaced.
2. The invention also provides a monofilament suspension torsion pendulum, when the suspension wires are replaced, the cross beam can be fixed through the damping assembly, the suspension wires are prevented from shaking when being replaced, and the balance adjusting time after the suspension wires are replaced can be shortened.
Drawings
Fig. 1 is a schematic structural diagram of a first fixing assembly.
Fig. 2 is a partially enlarged view a of fig. 1.
Fig. 3 is a structural diagram illustrating a clamping state of the first fixing assembly.
Fig. 4 is a partially enlarged view of portion B of fig. 3.
Fig. 5 is a schematic structural view of a second fixing assembly.
Fig. 6 is a schematic diagram of a monofilament suspended torsion pendulum.
Fig. 7 is a schematic structural view of a first fixing member according to embodiment 2.
Fig. 8 is a structural diagram illustrating a disassembled state of the first fixing assembly in embodiment 2.
In the figure, a first fixing component 1, a first clamping mechanism 11, a clamping housing 111, a first mounting hole 1111, a second mounting hole 1112, a fixing portion 1113, a limiting groove 1114, a positioning groove 1115, a first clamp 112, a first limiting hole 1121, a clamping piece 1122, an elastic piece 1123, a positioning protrusion 1124, a driving portion 1125, a second clamp 113, a fixing hole 1131, a second limiting hole 1132, a threaded end 1133, a limiting piece 114, a sleeve frame 12, a driving mechanism 13, a motor frame 131, a second fixing component 2, a suspension wire 3, a beam 4, a damping portion 41, a frame 5, a thruster to be tested 6, a standard cold air thruster 7, a damping component 8, a damping end 81 and a damping driving mechanism 9 are arranged in the first fixing component.
Detailed Description
In order to facilitate understanding of the technical solutions of the present invention, the following detailed description is made with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1-5, a suspension device for suspending a torsion pendulum from a monofilament, comprising: a suspension mechanism and a cross beam 4 connected to one end of the suspension mechanism, the suspension mechanism comprising:
a first fixing member 1 for fixing one end of a suspension wire 1, comprising:
the first clamping mechanism 11 is used for clamping the suspension wires 3;
the sleeve frame 12 is sleeved outside the first clamping mechanism 11 and used for limiting the first clamping mechanism 11 and preventing the first clamping mechanism 11 from releasing the clamping of the suspension wire 3;
the driving end of the driving mechanism 13 is connected to the first clamping mechanism 11, and when the suspension wire 3 needs to be replaced, the driving mechanism is used for driving the first clamping mechanism 11 to enable the first clamping mechanism 11 to move, so that the first clamping mechanism 11 is separated from the limit of the sleeve frame 12;
and the second fixing component 2 is used for fixing the other end of the suspension wire 1 and is arranged on the cross beam.
The suspension device for the monofilament suspension torsion pendulum has the advantages that the suspension wires 3 are fixed through the first fixing assembly 1 and the second fixing assembly 2, the fixing effect is good, the suspension wires can be prevented from being separated, and meanwhile, the fixing mode is convenient to replace when replacement is needed.
In one embodiment, the first clamping mechanism 11 includes a clamping housing 111, and a first clamp 112 and a second clamp 113 disposed on the clamping housing 111, that is, the first clamp 112 and the second clamp 113 double-fix the suspension wire 3, so as to improve the stability of connection and prevent the suspension wire 3 from being detached during use.
The lower surface of the clamping shell 111 is recessed inwards to form a certain structure to form an installation cavity, a first installation hole 1111 is formed in one side of the clamping shell 111, the first clamp 112 is movably matched in the first installation hole 1111 and tightly presses the suspension wire 3 onto the inner wall of the clamping shell 111, and the end face of the inner wall is overlapped with the central line of the clamping shell 111, namely, the suspension wire 3 can extend out of the center of the clamping shell 111 after being tightly pressed onto the inner wall of the shell 111.
Preferably, the end surface of the inner wall is recessed inwards to form a positioning groove 1115, the end of the first clamp 112 facing the positioning groove 1115 is provided with a positioning protrusion 1124, and after the first clamp 112 moves inwards to a limit position, the positioning protrusion 1124 extends into the positioning groove 1115 and is pressed on the suspension wire 3.
In order that the suspension wire 3 is not moved after the first clamp 112 fixes the suspension wire 3, the suspension wire 3 is easily disengaged once the first clamp 112 is moved. The end of the first clamp 112 is engaged against the jacket 12 or interference fit after moving to the extreme position.
In order to facilitate the movement of the first clamp 112, the first clamp 112 includes a driving portion 1125 engaged with the housing 12, the driving portion 1125 is a slope or curved structure, and the slope or curved structure is disposed toward the housing 12, when in use, the first clamp 112 is first manually installed into the first installation hole 1111, the suspension wire 3 is placed into the installation cavity of the clamping housing 111, the driving mechanism 13 starts to work to drive the first clamping mechanism 11 to ascend, the housing 12 abuts against the driving portion 1125 and drives the first clamp 112 to move inwards and press against the suspension wire 3.
In order to better fix the suspension wire 3, in this embodiment, a second mounting hole 1112 is disposed on one side of the clamping housing 111, the second clamp 113 is detachably fitted in the second mounting hole 1112, the second clamp 113 is disposed with a fixing hole 1131 for fixing the suspension wire 3, a fixing portion 1113 for fixing the second clamp 113 is disposed on an inner wall of the clamping housing 111, the second clamp 113 has a bolt structure, at least a portion matching with the fixing portion 1113 is a threaded end 1133, the fixing portion 1113 has an internal thread matching therewith, after the second clamp 113 is fitted in the second mounting hole 1112, the threaded end 1133 will abut against the surface of the fixing portion 1113, at this time, the suspension wire 3 is inserted into the fixing hole 1131 from the lower end surface of the clamping housing 111, and then the second clamp 113 is rotated to match the threaded end 1133 with the fixing portion 1113, the second clamp 113 continues to move inwards, and the suspension wire 3 will be wound on the surface of the second clamp 113 for several turns, the suspension wire 3 is fixed, the first clamp 112 is installed through the method, and the suspension wire 3 is doubly fixed through the first clamp 112 and the second clamp 113, so that the suspension wire 3 is prevented from being separated in use.
Because the stability of the first clamp 112 and the second clamp 113 is very important (once the first clamp 112 and the second clamp 113 move, the suspension wire 3 is easily loosened to be separated from the first clamping mechanism 11), in order to better limit the first clamp 112 and the second clamp 113, the present embodiment further includes a limiting member 114, the end surface of the clamping housing 111 is provided with a limiting groove 1114, the direction of the limiting groove 1114 is perpendicular to the direction of the first mounting hole 1111 and the second mounting hole 1112, the first clamp 112 is provided with a first limiting hole 1121, the second clamp 113 is provided with a second limiting hole 1132, the first limiting hole 1121 and the second limiting hole 1132 are coaxially arranged with the limiting groove 1114, and the limiting member 114 passes through the first limiting hole 1121 and the second limiting hole 1132 and is detachably arranged in the limiting groove 1114.
In order to prevent the limiting member 114 from falling off from the limiting groove 1114, the first mounting hole 1111 may be a threaded hole, the limiting member 114 may have a threaded structure only at a portion engaged with the first mounting hole 1111, and the remaining portion is a polished rod structure, and the width of the limiting groove 1114 is larger than the first mounting hole 1111 and the second mounting hole 1112.
The driving mechanism 13 may be an electric cylinder structure for driving the first clamping mechanism 11 to move up and down, or any other driving motor capable of driving the first clamping mechanism 11 to move up and down may be used, such as a screw nut assembly.
A rotating mechanism capable of driving the sleeve frame 12 to rotate is arranged outside the sleeve frame 12, and the rotating mechanism is the prior art; and the driving mechanism 13 is installed on the motor frame 131, and the motor frame 131 is fixedly connected with the jacket frame 12, so that when the rotating mechanism drives the jacket frame 12 to rotate, the driving mechanism 13 can be rotated at the same time, and then the suspension wires 3 are rotated, and finally the cross beam 4 is rotated.
As shown in fig. 5, the second fixing element 2 is similar to the first clamping mechanism 11 and is a mirror image structure of the first clamping mechanism 11, which is not repeated herein.
As shown in fig. 6, a monofilament suspension torsion pendulum comprising:
a frame 5;
one end of the suspension mechanism is connected to the rack 5;
the thruster to be tested 6 is arranged at one end of the cross beam 4;
and the standard cold air thruster 7 is arranged at the other end of the beam 4, and the calibration of the thruster to be tested 6 is realized through the standard cold air thruster 7.
Still including setting up the damping subassembly 8 on frame 5, damping subassembly 8 includes damping end 81, be equipped with on the crossbeam 4 and realize crossbeam 4 rapid stabilization's damping portion 41 with damping end 81 cooperation. Be equipped with magnet on the damping end 81, be equipped with the coil on the damping portion 11, after the experiment was accomplished once, crossbeam 4 has certain horizontal direction's reciprocating rotation, removes damping subassembly 8 and makes damping end 81 be located crossbeam 4 top, realizes the damping effect through lenz's law with the coil cooperation through magnet, makes the faster stable state that tends to of torsion pendulum, promotes the response time of torsion pendulum.
As a preferable mode, the damping end 81 is movably fitted on the damping component 8, the damping component 8 is provided with a damping driving mechanism 9 for driving the damping end 81 to move up and down, meanwhile, the damping component 8 is a U-shaped structure transversely arranged, and both ends are damping ends 81, when the suspension wire 3 needs to be replaced, the damping component 8 is driven to rise by a three-coordinate driving device, the damping end 81 located below is attached to the cross beam 4, the damping driving mechanism 9 drives the damping end 81 located above to fall, the two damping ends 81 are fitted with the cross beam 4 to prevent the cross beam 4 from rotating, at this time, the driving mechanism 13 drives the first clamping mechanism 11 to move down, so that the first clamping mechanism 11 is separated from the limit of the jacket 12, the limit part 114, the first clamp 112 and the second clamp 113 are sequentially taken down, and the fixation of one end of the suspension wire 1 can be released, and then the other end of the suspension wire 3 is released from fixation, so that the suspension wire 3 can be completely disassembled. After the suspension wires 3 are replaced and installed on the first fixing assembly 1 and the second fixing assembly 2, the damping assemblies 8 are released from positioning the cross beam 4, and then the test can be carried out again.
Example 2
As shown in fig. 7 to 8, embodiment 2 differs from embodiment 1 in that the first clamp 112 includes at least two clamping members 1122 hinged to one end of the clamping housing 111, and an elastic member 1123 is disposed between two adjacent clamping members 1122.
As an embodiment, the first clamp 112 is a three-jaw clamping mechanism, and when the three-jaw clamping mechanism is located in the jacket 12, three jaws of the three-jaw clamping mechanism all abut against an inner wall of the jacket 12, so as to clamp the suspension wire 3. The elastic member 1123 is a spring and is in a compressed state, and when the three-jaw clamping mechanism extends out of the jacket frame 12, the three jaws are opened under the action of the spring to release the clamping of the suspension wires. After the suspension wire 3 is replaced, the driving mechanism 13 drives the first clamping mechanism 11 to move upwards, and three claws of the three-claw clamping mechanism abut against the end part of the sleeve frame 12 to be folded and tightly clamp the suspension wire 3.
The above is only a preferred embodiment of the present invention, and the scope of the present invention is defined by the scope defined by the claims, and several modifications and amendments made by those skilled in the art without departing from the spirit and scope of the present invention should be regarded as the scope of the present invention.
Claims (10)
1. A suspension device for a monofilament suspended torsion pendulum comprising: hang mechanism and be connected in crossbeam (4) of hanging mechanism one end, its characterized in that, hang the mechanism and include:
a suspension wire (3);
first fixing assembly (1) for fixing one end of a suspension wire (1), comprising:
the first clamping mechanism (11) is used for clamping the suspension wire (3);
the sleeve frame (12) is sleeved outside the first clamping mechanism (11) and used for limiting the first clamping mechanism (11);
the driving end of the driving mechanism (13) is connected to the first clamping mechanism (11) and is used for driving the first clamping mechanism (11) to enable the first clamping mechanism (11) to be separated from the limit of the sleeve frame (12);
and the second fixing component (2) is used for fixing the other end of the suspension wire (1) and is arranged on the cross beam.
2. Suspension device for a monofilament suspended torsion pendulum according to claim 1, characterized in that said first clamping means (11) comprises a clamping housing (111), a first clamp (112) and a second clamp (113) arranged on the clamping housing (111).
3. The suspension device of a monofilament suspension torsion pendulum as claimed in claim 2, wherein said holding case (111) is provided with a first mounting hole (1111) at one side, said first clamp (112) is movably fitted into said first mounting hole (1111) and presses said suspension wire (3) against the inner wall of said holding case (111), and said suspension wire (3) is protruded from the center of said holding case (111).
4. The suspension device for suspending a torsion pendulum by a monofilament as claimed in claim 2, wherein a second mounting hole (1112) is formed at one side of the clamping housing (111), the second clamp (113) is detachably fitted in the second mounting hole (1112), a fixing hole (1131) for fixing the suspension wire (3) is formed in the second clamp (113), and a fixing portion (1113) for fixing the second clamp (113) is formed on the inner wall of the clamping housing (111).
5. The suspension device for the monofilament suspension torsion pendulum of claim 2, further comprising a limiting member (114), wherein a limiting groove (1114) is formed in the end face of the clamping housing (111), and the limiting member (114) is detachably disposed in the limiting groove (1114) through the first limiting hole (1121) of the first clamp (112) and the second limiting hole (1132) of the second clamp (113).
6. The suspension device of a monofilament suspended torsion pendulum as claimed in claim 2, wherein said first clamp (112) comprises at least two clamping members (1122) hinged to one end of the clamping housing (111), and an elastic member (1123) is disposed between two adjacent clamping members (1122).
7. A monofilament suspended torsion pendulum comprising:
a frame (5);
a suspension mechanism as claimed in any one of claims 1 to 6, one end of which is connected to the frame (5);
the thruster to be tested (6) is arranged at one end of the cross beam (4);
and the standard cold air thruster (7) is arranged at the other end of the cross beam (4).
8. The monofilament suspension torsion pendulum of claim 7, further comprising a damping component (8) disposed on the frame (5), wherein the damping component (8) comprises a damping end (81), and the beam (4) is provided with a damping portion (41) cooperating with the damping end (81) to realize rapid and stable stability of the beam (4).
9. The monofilament suspension torsion pendulum according to claim 8, characterized in that the damping assembly (8) is provided with a damping driving mechanism (8) for driving the damping end (81) to move up and down.
10. Monofilament suspension pendulum according to claim 9, characterized in that said damping member (8) is of a laterally arranged U-shaped configuration and both ends are damping ends (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210498925.8A CN115096502A (en) | 2022-05-09 | 2022-05-09 | Suspension device for single-wire suspension torsion pendulum and single-wire suspension torsion pendulum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210498925.8A CN115096502A (en) | 2022-05-09 | 2022-05-09 | Suspension device for single-wire suspension torsion pendulum and single-wire suspension torsion pendulum |
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| Publication Number | Publication Date |
|---|---|
| CN115096502A true CN115096502A (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210498925.8A Pending CN115096502A (en) | 2022-05-09 | 2022-05-09 | Suspension device for single-wire suspension torsion pendulum and single-wire suspension torsion pendulum |
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