CN112828837A - Heavy-load two-degree-of-freedom turntable - Google Patents
Heavy-load two-degree-of-freedom turntable Download PDFInfo
- Publication number
- CN112828837A CN112828837A CN202011603805.7A CN202011603805A CN112828837A CN 112828837 A CN112828837 A CN 112828837A CN 202011603805 A CN202011603805 A CN 202011603805A CN 112828837 A CN112828837 A CN 112828837A
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- frame
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- fixedly connected
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- 230000000712 assembly Effects 0.000 claims abstract description 29
- 238000000429 assembly Methods 0.000 claims abstract description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000004088 simulation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000004513 sizing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/14—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top
- B25H1/18—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top in inclination
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
Abstract
The invention discloses a heavy-load two-degree-of-freedom turntable, which comprises: a base; the two pitching shaft assemblies are respectively installed and fixed at two ends of the base; the pitching frame is square-like and is arranged between the two pitching shaft assemblies, and the outer sides of the first group of opposite side end surfaces of the pitching frame are fixedly connected with the two pitching shaft assemblies respectively; the two rotating shaft assemblies are respectively installed and fixed on the outer sides of the second group of opposite side end faces of the pitching frame; two end parts of the U-shaped rotating frame are respectively installed and fixed on the inner sides of the second group of opposite side end surfaces of the pitching frame and are respectively fixedly connected with the corresponding rotating shaft assemblies; and one end of the electric cylinder assembly is fixedly connected with the lower end face of the pitching frame, and the other end of the electric cylinder assembly is fixedly connected with the base. The invention can realize the two-degree-of-freedom test of heavy-load and large-inertia products.
Description
Technical Field
The invention relates to the field of simulation tests, in particular to a heavy-load two-degree-of-freedom turntable.
Background
The simulation test turntable is widely applied to performance test and attitude simulation of aircrafts such as missiles, satellites, cameras, ships, inertial units and the like and devices thereof, is key equipment in semi-physical simulation tests of aircraft machine components, can truly reproduce dynamic characteristics of the aircrafts during movement, tests guidance and control systems and related devices of the aircrafts, optimally designs the aircrafts, and improves performance indexes of the aircrafts.
The two-degree-of-freedom rotary table with the traditional structure generally adopts a motor direct drive mode to realize high-precision positioning of a shaft system, but when a test object is large in size and heavy in weight, a rotary table frame and rotary inertia are greatly increased, high requirements are provided for a control system, and the realization difficulty is high.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a heavy-load two-degree-of-freedom turntable, the pitching motion of the turntable is realized by lifting of an electric cylinder, and the driving of a large load and a large inertia load can be easily realized.
In order to achieve the above object, the present invention provides a heavy-duty two-degree-of-freedom turntable, comprising:
a base;
the two pitching shaft assemblies are fixedly arranged on the base and are respectively positioned at two ends of the base;
the pitching frame is square-like and is arranged between the two pitching shaft assemblies, and the outer sides of the first group of opposite side end surfaces of the pitching frame are fixedly connected with the two pitching shaft assemblies respectively;
two rotating shaft assemblies which are respectively installed and fixed at the outer sides of the second group of opposite side end surfaces in the pitching frame 4;
the rotating shaft is arranged in the rotating shaft supporting piece and is correspondingly inserted into the through hole on the side end face of the pitching frame, which is contacted with the rotating shaft assembly;
two end parts of the U-shaped rotating frame are respectively installed and fixed on the inner sides of the second group of opposite side end surfaces of the pitching frame and are respectively fixedly connected with the corresponding rotating shaft assemblies;
one end of the electric cylinder assembly is fixedly connected with the lower end face of the pitching frame, and the other end of the electric cylinder assembly is fixedly connected with the base;
when the two rotating shaft assemblies rotate at the same speed and in the same direction under the action of the external driving device, the rotating frame connected with the two rotating shaft assemblies can be driven to realize 360-degree rotating motion; the electric cylinder assembly can lift one side of the pitching frame connected with the electric cylinder assembly through telescopic motion, and swing motion of the pitching frame in the range of-10 degrees to +65 degrees in the vertical direction is realized.
Wherein, four side end faces of the pitching frame are provided with through holes.
Each of the pitch shaft assemblies comprises: the lower end of the pitching support is fixedly connected with the base; the bearing block is arranged at the upper end of the pitching support; and the pitching shaft is arranged in the bearing seat and is correspondingly inserted into the through hole on the side end surface of the pitching frame, which is in contact with the pitching shaft assembly.
Each of the rotating shaft assemblies includes: the rotating shaft supporting piece is fixedly connected with the outer side of the second group of opposite side end faces of the pitching frame; and a rotating shaft installed in the rotating shaft support and correspondingly inserted into the through hole on the side end surface of the pitching frame contacting the rotating shaft assembly.
The electric cylinder assembly includes: the upper hinge seat is fixedly arranged at the bottom of one side end face of the pitching frame; the lower hinge seat is arranged on the base; the upper end of the electric cylinder is connected with the upper hinge, and the lower end of the electric cylinder is connected with the lower hinge.
The heavy-load two-degree-of-freedom turntable further comprises a counterweight component, and the counterweight component is fixedly installed at the top of the rotating frame; the weight assembly includes: the balancing weight outer shell is arranged at the top of the rotating frame; the screw rod is vertically arranged inside the balancing weight shell, and the bottom end of the screw rod is fixedly connected with the bottom end inside the balancing weight shell; the balance weight blocks are provided with through holes and pass through the screw rods to be stacked and installed in the balance weight block shell; and the compression nut is sleeved on the screw rod and compresses the balancing weight penetrating through the screw rod.
Preferably, the counterweight block is made of high-density materials such as steel, copper and the like.
The heavy-load two-degree-of-freedom turntable further comprises a plurality of sizing block pieces, wherein the sizing block pieces are placed on the ground to support the base.
Compared with the prior art, the invention has the beneficial effects that: the rotating shaft device is used for driving the rotating frame to move, the electric cylinder is used for lifting the pitching frame, two-degree-of-freedom testing of heavy-load and high-inertia products can be achieved, and the limitation that a two-degree-of-freedom turntable of a traditional structure is difficult to test large-size and heavy-weight products is overcome.
Drawings
FIG. 1 is a schematic view of a heavy-duty two-degree-of-freedom turntable according to the present invention;
FIG. 2 is a schematic view of the construction of the pitch shaft assembly of the present invention;
FIG. 3 is a schematic view of the construction of the rotating shaft assembly of the present invention;
FIG. 4 is a schematic view of the construction of the weight assembly of the present invention;
fig. 5 is a schematic structural view of an electric cylinder lifting and pitching frame in the invention.
Detailed Description
The technical contents, the structural features, the achieved objects and the effects of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the heavy-duty two-degree-of-freedom turntable provided by the present invention comprises:
a base 2;
a plurality of parallels 1 placed on the ground to support the base 2;
the two pitching shaft assemblies 3 are fixedly arranged on the base 2 and are respectively positioned at two ends of the base 2;
the pitching frame 4 is square-like, through holes are formed in four side end faces of the pitching frame and are arranged between the two pitching shaft assemblies 3, and the outer sides of a first group of opposite side end faces of the pitching frame 4 are fixedly connected with the two pitching shaft assemblies 3 respectively;
two rotating shaft assemblies which are respectively installed and fixed at the outer sides of the second group of opposite side end surfaces in the pitching frame 4;
two end parts of the U-shaped rotating frame 5 are respectively installed and fixed on the inner sides of the second group of opposite side end surfaces of the pitching frame 4 and are respectively and fixedly connected with the corresponding rotating shaft assemblies;
the counterweight component 7 is fixedly arranged at the top of the rotating frame 5;
an upper hinge base 8 which is installed and fixed at the bottom of one side end face of the pitching frame 4;
a lower hinge base 10 installed on the base 2;
and the upper end of the electric cylinder 9 is connected with the upper hinge 8, the lower end of the electric cylinder is connected with the lower hinge 10, and the electric cylinder 9 is used for lifting the pitching frame 4.
As shown in fig. 2, each of the pitch shaft assemblies 3 includes: the lower end of the pitching support 11 is fixedly connected with the base 2; a bearing block 12 installed at the upper end of the pitch bracket 11; and a pitch shaft 13 mounted in the bearing housing 12 and inserted into a through hole formed in a side end surface of the pitch frame 4 contacting the pitch shaft assembly.
Wherein, as shown in fig. 3, each of the rotating shaft assemblies comprises: a rotating shaft support member 6 fixedly connected to the outer side of the second set of opposite side end faces of the pitch frame 4; and a rotation shaft 14 installed in the rotation shaft support 6 and inserted into a through hole on a side end surface of the pitch frame 4 contacting the rotation shaft assembly, correspondingly.
As shown in fig. 4, the weight assembly 7 includes: a counter weight block housing 15 installed at the top of the rotating frame 5; the screw 17 is vertically arranged inside the balancing weight block shell 15, and the bottom end of the screw 17 is fixedly connected with the bottom end inside the balancing weight block shell 15; a plurality of balancing weights 16, which are provided with through holes and are stacked and installed in the balancing weight shell 15 through screws 17; and the compression nut 18 is sleeved on the screw rod 17 and compresses the balancing weight 16 penetrating through the screw rod 17.
Wherein, the counterweight block 16 is made of high-density materials such as steel or copper.
As shown in fig. 5, when the rotating shafts 14 of the two rotating shaft assemblies rotate synchronously (including at the same speed and in the same direction) under the action of the external driving device, the rotating frames 5 connected with the rotating shafts can be driven to rotate 360 degrees around the rotating shafts 14; the electric cylinder 9 can lift the pitching frame 4 and the side connected with the pitching frame through telescopic motion, and swing motion of one side of the pitching frame 4 in the range of-10 degrees to +65 degrees (the horizontal direction is 0 degree, the downward direction is a negative direction, and the upward direction is a positive direction) in the vertical direction is realized. Therefore, the invention can realize the two-degree-of-freedom test of heavy-load and large-inertia products and can overcome the limitation that the two-degree-of-freedom turntable of the traditional structure is difficult to test products with larger size and larger weight. While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (9)
1. A heavy-duty two-degree-of-freedom turret, comprising:
a base;
the two pitching shaft assemblies are fixedly arranged on the base and are respectively positioned at two ends of the base;
the pitching frame is square-like and is arranged between the two pitching shaft assemblies, and the outer sides of the first group of opposite side end surfaces of the pitching frame are fixedly connected with the two pitching shaft assemblies respectively;
the two rotating shaft assemblies are respectively installed and fixed on the outer sides of the second group of opposite side end faces in the pitching frame;
two end parts of the U-shaped rotating frame are respectively installed and fixed on the inner sides of the second group of opposite side end surfaces of the pitching frame and are respectively fixedly connected with the corresponding rotating shaft assemblies;
one end of the electric cylinder assembly is fixedly connected with the lower end face of the pitching frame, and the other end of the electric cylinder assembly is fixedly connected with the base;
when the two rotating shaft assemblies rotate at the same speed and in the same direction under the action of the external driving device, the rotating frame connected with the two rotating shaft assemblies can be driven to rotate by 360 degrees; the electric cylinder assembly can lift one side of the pitching frame connected with the electric cylinder assembly through telescopic motion, and swing motion of the pitching frame in the range of-10 degrees to +65 degrees in the vertical direction is realized.
2. The heavy-duty two-degree-of-freedom turntable of claim 1, wherein the four side end surfaces of the pitching frame are provided with through holes.
3. A heavy-duty two degree-of-freedom turret according to claim 2 wherein each said pitch shaft assembly comprises: the lower end of the pitching support is fixedly connected with the base; the bearing block is arranged at the upper end of the pitching support; and the pitching shaft is arranged in the bearing seat and is correspondingly inserted into the through hole on the side end surface of the pitching frame, which is in contact with the pitching shaft assembly.
4. The heavy duty two degree of freedom turret of claim 2 wherein each said pivot shaft assembly comprises: the rotating shaft supporting piece is fixedly connected with the outer side of the second group of opposite side end faces of the pitching frame; and a rotating shaft installed in the rotating shaft support and correspondingly inserted into the through hole on the side end surface of the pitching frame contacting the rotating shaft assembly.
5. The heavy-duty two degree-of-freedom turret of claim 1 wherein said motorized cylinder assembly comprises: the upper hinge seat is fixedly arranged at the bottom of one side end face of the pitching frame; the lower hinge seat is arranged on the base; the upper end of the electric cylinder is connected with the upper hinge, and the lower end of the electric cylinder is connected with the lower hinge.
6. The heavy-duty two degree-of-freedom turret of claim 1 further including a counterweight assembly mounted on top of the rotating frame.
7. The heavy-duty two degree-of-freedom turret of claim 6 wherein the counterweight assembly comprises: the balancing weight outer shell is arranged at the top of the rotating frame; the screw rod is vertically arranged inside the balancing weight shell, and the bottom end of the screw rod is fixedly connected with the bottom end inside the balancing weight shell; the balance weight blocks are provided with through holes and pass through the screw rods to be stacked and installed in the balance weight block shell; and the compression nut is sleeved on the screw rod and compresses the balancing weight penetrating through the screw rod.
8. The heavy-duty two degree-of-freedom turntable of claim 7, wherein said weight is made of a high-density material such as steel or copper.
9. The heavy-duty two degree-of-freedom turret of claim 1 further including a plurality of shim plates placed on the ground to support the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011603805.7A CN112828837A (en) | 2020-12-30 | 2020-12-30 | Heavy-load two-degree-of-freedom turntable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011603805.7A CN112828837A (en) | 2020-12-30 | 2020-12-30 | Heavy-load two-degree-of-freedom turntable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112828837A true CN112828837A (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011603805.7A Pending CN112828837A (en) | 2020-12-30 | 2020-12-30 | Heavy-load two-degree-of-freedom turntable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112828837A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113580081A (en) * | 2021-08-13 | 2021-11-02 | 江苏金紧汽配有限公司 | Intelligent regulation automobile parts storage rack |
| CN114043435A (en) * | 2021-11-26 | 2022-02-15 | 四川航天中天动力装备有限责任公司 | Upset frock suitable for jumbo size unmanned aerial vehicle |
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| CN110065647A (en) * | 2019-04-25 | 2019-07-30 | 沈阳飞研航空设备有限公司 | Adjustment platform is lifted in a kind of intelligent electric bomb truck |
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2020
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| JP2006322274A (en) * | 2005-05-20 | 2006-11-30 | Biso:Kk | Rotary work table for glass |
| CN1811368A (en) * | 2006-01-13 | 2006-08-02 | 浙江大学 | Three-dimensional artificial rotary table for micro-unmanned helicopter flight attitude |
| RU86738U1 (en) * | 2008-12-29 | 2009-09-10 | Федеральное государственное унитарное предприятие "Государственный научно-исследовательский институт авиационных систем" | DYNAMIC MODELING STAND |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113580081A (en) * | 2021-08-13 | 2021-11-02 | 江苏金紧汽配有限公司 | Intelligent regulation automobile parts storage rack |
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| CN114043435A (en) * | 2021-11-26 | 2022-02-15 | 四川航天中天动力装备有限责任公司 | Upset frock suitable for jumbo size unmanned aerial vehicle |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210525 |
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