CN112729838A - Attitude holding device and attitude adjusting table - Google Patents
Attitude holding device and attitude adjusting table Download PDFInfo
- Publication number
- CN112729838A CN112729838A CN202011397863.9A CN202011397863A CN112729838A CN 112729838 A CN112729838 A CN 112729838A CN 202011397863 A CN202011397863 A CN 202011397863A CN 112729838 A CN112729838 A CN 112729838A
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- attitude
- sliding block
- oil
- frame
- shaft
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
Abstract
The present invention relates to an attitude holding device and an attitude adjusting table, the attitude holding device comprising: the sliding block is connected with a telescopic driving unit in a transmission manner, the sliding block slides along the space between the elastic element and the telescopic driving unit, and a clamping groove is formed in the side part of the sliding block; the end part of the shaft sleeve is movably clamped in the clamping groove of the sliding block. The posture adjusting table comprises an outer frame, an inner shaft system and the posture retaining device, wherein a shaft sleeve is sleeved on a main shaft of the inner shaft system, and the outer frame is erected on the machine. The centrifugal machine is applied to the technical field of aviation centrifugal machines.
Description
Technical Field
The invention relates to the technical field of aeronautical centrifuges, in particular to an attitude keeping device and an attitude adjusting platform.
Background
The centrifuge with the attitude adjusting platform is important equipment for calibrating and detecting an aircraft engine lubricating oil system, and the centrifuge is usually a large-scale centrifuge and has large size and large centrifugal acceleration. The attitude adjusting platform is positioned at the end part of a cantilever of the centrifugal machine, can be subjected to resisting moments such as coupling moment, eccentric moment, friction moment and the like, and a direct drive motor needs to be electrified all the time to provide balance between driving moment and resisting moment for keeping a certain attitude. However, long-time electrification can cause a direct drive motor to generate larger load, the service life of the motor is shortened, and the reliability of the system is reduced.
Accordingly, the inventors provide an attitude keeping apparatus and an attitude adjusting table.
Disclosure of Invention
(1) Technical problem to be solved
The embodiment of the invention provides an attitude keeping device and an attitude adjusting platform, which solve the technical problem that driving torque and resisting torque need to be balanced by always electrifying through reasonable matching of a telescopic driving unit and a shaft sleeve.
(2) Technical scheme
In a first aspect, an embodiment of the present invention provides an attitude keeping apparatus, including:
the sliding block is connected with a telescopic driving unit in a transmission manner, the sliding block slides along the space between the elastic element and the telescopic driving unit, and a clamping groove is formed in the side part of the sliding block;
the end part of the shaft sleeve is movably clamped in the clamping groove of the sliding block.
In a further improvement, the slider comprises a cylinder and a supporting block, the cylinder is slidably arranged in the frame, the supporting block and the clamping groove are respectively arranged at two side parts of the cylinder, and an elastic element is arranged between one end of the supporting block and the frame in a propping manner;
the telescopic driving unit comprises an oil cavity, an oil path and an oil supply driving element, the oil cavity is formed among one end, far away from the elastic element, of the supporting block, the column body and the support, and the oil cavity is connected with the oil supply driving element through the oil path.
In a further improvement, the frame is also provided with an oil outlet which is communicated with the oil cavity.
In a further improvement, the frame is provided with a chute and a stop block, the cylinder is slidably arranged in the chute, and the stop block is arranged on the side of the cylinder.
In a further improvement, the stop block is detachably arranged at the notch of the sliding groove.
In a further improvement, the shaft sleeve is a shaft sleeve friction plate, and the sliding block is a sliding block friction plate.
In a further improvement, the elastic element is a spring.
The embodiment also discloses an attitude adjusting table, which adopts the following technical scheme:
the posture adjusting table comprises an outer frame, an inner shaft system and the posture retaining device, wherein a shaft sleeve is sleeved on a main shaft of the inner shaft system, and the outer frame is erected on the machine.
In a further improvement, the attitude adjusting table further comprises an outer shaft system, the attitude maintaining device is also arranged at the outer shaft system, and the shaft sleeve is sleeved on a main shaft of the outer shaft system.
(3) Advantageous effects
In summary, in the attitude keeping device of the present invention, the shaft sleeve is used for being sleeved on the main shaft of the inner shaft system or the main shaft of the outer shaft system of the attitude adjusting table; the elastic element is in a compressed state and is used for abutting against one end of the sliding block and the machine frame and providing a thrust force to the direction of the telescopic driving unit for the sliding block. When the shaft sleeve is clamped in the clamping groove, the clamping groove of the shaft sleeve and the sliding block is pressed tightly due to the thrust action of the elastic element, so that the shaft sleeve is limited, and a main shaft of an inner shafting or a main shaft of an outer shafting is locked. When the telescopic driving unit pushes the sliding block and continues to compress the elastic element, the shaft sleeve and the clamping groove of the sliding block are not in a compressed state, so that the shaft sleeve cannot be limited, and the main shaft of the inner shafting or the main shaft of the outer shafting can freely rotate. The attitude keeping device has compact structure and simple principle, generates larger braking torque by reasonably matching the telescopic driving unit and the shaft sleeve, replaces a direct drive motor to lock a shaft system, can lock a main shaft of an inner shaft system and a main shaft of an outer shaft system at any position, maintains stable attitude, improves the reliability of the attitude adjusting platform, and prolongs the service life of the attitude adjusting platform.
The attitude adjusting table of the present invention also has the above-mentioned advantages, and will not be described herein.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an attitude keeping apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an attitude adjusting stage according to an embodiment of the present invention.
In the figure:
1-a frame; 11-a chute; 12-a stop block; 21-a column; 22-a support block; 3-an elastic element; 4-a card slot; 5-shaft sleeve; 6-oil chamber; 7-an oil outlet; 101-an outer frame; 102-inner shafting; 1021-a main shaft; 103-outer axis system.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, i.e., the invention is not limited to the embodiments described, but covers any modifications, alterations, and improvements in the parts, components, and connections without departing from the spirit of the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 2, an attitude keeping apparatus includes:
the sliding device comprises a rack 1, wherein a sliding block is arranged in the rack 1 in a sliding manner, an elastic element 3 is arranged between one end of the sliding block and the rack 1 in a propping manner, the sliding block is also connected with a telescopic driving unit in a transmission manner, the sliding block slides along the elastic element 3 and the telescopic driving unit, and a clamping groove 4 is formed in the side part of the sliding block;
the end part of the shaft sleeve 5 is movably clamped in the clamping groove 4 of the sliding block.
In this embodiment, the shaft sleeve 5 is used for being sleeved on the main shaft 1021 of the inner shaft system 102 of the attitude adjusting table or the main shaft of the outer shaft system 103; the elastic element 3 is in a compressed state and is used for abutting against one end of the sliding block and the machine frame 1 and providing a thrust force for the sliding block in the direction of the telescopic driving unit. When the shaft sleeve 5 is clamped in the clamping groove 4, the shaft sleeve 5 and the clamping groove 4 of the sliding block are pressed tightly due to the thrust action of the elastic element 3, so that the shaft sleeve 5 is limited, and the main shaft 1021 of the inner shaft system 102 or the main shaft of the outer shaft system 103 is locked. When the telescopic driving unit pushes the slide block and continues to compress the elastic element 3, the shaft sleeve 5 and the slot 4 of the slide block are not in a compressed state, so that the shaft sleeve 5 is not limited, and the main shaft 1021 of the inner shaft system 102 or the main shaft of the outer shaft system 103 can rotate freely.
The posture holding device of the embodiment has a compact structure and a simple principle, generates a larger braking torque through reasonable matching of the telescopic driving unit and the shaft sleeve 5, replaces a direct drive motor to lock a shaft system, can lock the main shaft 1021 of the inner shaft system 102 and the main shaft of the outer shaft system 103 at any position, maintains stable posture, improves the reliability of the posture adjusting table, and prolongs the service life of the posture adjusting table.
Further, in an embodiment, the slider includes a cylinder 21 and a supporting block 22, the cylinder 21 is slidably disposed in the frame 1, the supporting block 22 and the slot 4 are respectively disposed at two side portions of the cylinder 21, and an elastic element 3 is disposed between one end of the supporting block 22 and the frame 1;
the telescopic driving unit comprises an oil cavity 6, an oil path and an oil supply driving element, wherein the oil cavity 6 is formed among one end of the supporting block 22 far away from the elastic element 3, the column body 21 and the bracket, and the oil cavity 6 is connected with the oil supply driving element through the oil path. Specifically, the oil supply driving element is an oil pump or the like. An upper hollow and a lower hollow are arranged between the supporting block 22 and the frame 1, which are tightly attached to the frame 1, of the column body 21, an elastic element 3 is installed in the upper hollow, the upper end of the elastic element 3 is fixed on the frame 1, the lower end of the elastic element 3 is in contact with the supporting block 22, the elastic element 3 is always in a compressed state, and hydraulic oil is filled in the oil cavity 6; when the oil cavity 6 is not pressurized, the supporting block 22 makes the clamping groove 4 on the cylinder 21 tightly attached to the shaft sleeve 5 under the elastic force of the elastic element 3 to generate a large friction force to lock the inner shaft system 102; when the oil supply driving element pressurizes the oil cavity 6 through an oil path, the hydraulic pressure pushes the supporting block 22 to further compress the elastic element 3 until balance is achieved, so that the clamping groove 4 and the shaft sleeve 5 on the cylinder 21 are not in a pressing state, the inner shaft system 102 is not influenced by the posture maintaining device, and posture adjustment is performed by overcoming coupling moment, friction moment and eccentric moment under the action of the direct drive motor.
Further, in an embodiment, an oil outlet 7 is further arranged on the frame 1, the oil outlet 7 is communicated with the oil chamber 6, and hydraulic oil in the oil chamber 6 can be discharged through the oil outlet 7.
Further, in an embodiment, the frame 1 is provided with a sliding slot 11 and a stopper 12, the column body 21 is slidably disposed in the sliding slot 11, and the stopper 12 is disposed at a side portion of the column body 21. The stopper 12 can block the column 21 and prevent the column 21 from sliding out of the chute 11.
Further, in an embodiment, the stopper 12 is detachably disposed at the notch of the sliding groove 11, the stopper 12 is connected to the frame 1 by a screw, and the stopper 12 limits the degree of freedom of the sliding block 1 in the radial direction, so that the assembly and disassembly are convenient.
Further, in an embodiment, the shaft sleeve 5 is a shaft sleeve friction plate, and the sliding block is a sliding block friction plate. The friction fixing effect between the shaft sleeve friction plate and the sliding block friction plate is better.
Further, in an embodiment, the elastic element 3 is a spring, which is simple in structure and low in cost.
The embodiment also discloses an attitude adjusting table, which adopts the following technical scheme:
an attitude adjusting table comprises an outer frame 101, an inner shaft system 102 and the attitude keeping device, wherein a shaft sleeve 5 is sleeved on a main shaft 1021 of the inner shaft system 102, and a frame 1 is arranged on the outer frame 101. The sleeve 5 and the main shaft 1021 of the inner shaft system 102 are keyed. The posture adjustment table of the present embodiment having the posture maintaining device also has the above advantages, and will not be described herein again.
Further, in an embodiment, the attitude adjusting table further includes an outer shaft 103, the outer shaft 103 is also provided with the above-mentioned attitude maintaining device, and the shaft sleeve 5 is sleeved on a main shaft of the outer shaft 103. When the outer shafting 103 is subjected to attitude adjustment, a larger coupling torque is received, and in addition, a precession torque generated when an internal rotor of an aircraft engine lubricating oil system rotates is also received, in order to maintain the attitude of the outer shafting 103, a plurality of attitude maintaining devices need to be additionally arranged at two ends of the outer shafting 103, and due to the size, the sizes of the attitude maintaining devices on the outer shafting 103 and the attitude maintaining devices on the inner shafting 102 are different, but the principle and the structural form are consistent, and the details are not repeated here.
The above description is only an example of the present application and is not limited to the present application. Various modifications and alterations to this application will become apparent to those skilled in the art without departing from the scope of this invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (9)
1. An attitude keeping apparatus, characterized by comprising:
the sliding block is connected with a telescopic driving unit in a transmission manner, the sliding block slides along the space between the elastic element and the telescopic driving unit, and a clamping groove is formed in the side part of the sliding block;
the end part of the shaft sleeve is movably clamped in the clamping groove of the sliding block.
2. The posture maintaining device of claim 1, wherein the slider comprises a cylinder and a supporting block, the cylinder is slidably arranged in the frame, the supporting block and the clamping groove are respectively arranged at two side parts of the cylinder, and an elastic element is arranged between one end of the supporting block and the frame;
the telescopic driving unit comprises an oil cavity, an oil path and an oil supply driving element, the oil cavity is formed among one end, far away from the elastic element, of the supporting block, the column body and the support, and the oil cavity is connected with the oil supply driving element through the oil path.
3. The attitude maintaining apparatus according to claim 2, wherein an oil outlet is further provided in said frame, said oil outlet communicating with an oil chamber.
4. The attitude keeping apparatus according to claim 2, wherein the frame is provided with a slide groove and a stopper, the column body is slidably provided in the slide groove, and the stopper is provided on a side portion of the column body.
5. The attitude keeping apparatus according to claim 4, wherein the stopper is detachably provided at a chute port.
6. The attitude keeping apparatus according to claim 1, wherein the sleeve is a sleeve friction plate, and the slider is a slider friction plate.
7. The attitude keeping device according to claim 1, wherein the elastic member is a spring.
8. An attitude adjustment table comprising an outer frame, an inner shafting, and the attitude maintaining device according to any one of claims 1 to 7, wherein the bushing is fitted over a main shaft of the inner shafting, and the outer frame is mounted on the machine frame.
9. The attitude adjusting table according to claim 8, further comprising an outer shaft, wherein the attitude maintaining device according to any one of claims 1 to 7 is disposed at the outer shaft, and the bushing is sleeved on a main shaft of the outer shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011397863.9A CN112729838B (en) | 2020-12-03 | 2020-12-03 | Attitude holding device and attitude adjusting table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011397863.9A CN112729838B (en) | 2020-12-03 | 2020-12-03 | Attitude holding device and attitude adjusting table |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112729838A true CN112729838A (en) | 2021-04-30 |
| CN112729838B CN112729838B (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011397863.9A Active CN112729838B (en) | 2020-12-03 | 2020-12-03 | Attitude holding device and attitude adjusting table |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201526626U (en) * | 2009-11-05 | 2010-07-14 | 昆山金发液压机械有限公司 | Friction hydraulic brake |
| JP2012011482A (en) * | 2010-06-30 | 2012-01-19 | Osaka Kiko Co Ltd | Main spindle clamp device of machine tool |
| CN202187200U (en) * | 2010-10-26 | 2012-04-11 | 常州至精精机有限公司 | Clutch brake device of stirring washing machine |
| CN104330223A (en) * | 2014-11-26 | 2015-02-04 | 南京林业大学 | Mechanical sealing property testing device and method for measuring axial force and temperature of sealed end surfaces |
| CN105179524A (en) * | 2015-09-08 | 2015-12-23 | 重庆速腾机械制造有限公司 | Spring cone brake |
| CN105538017A (en) * | 2014-10-28 | 2016-05-04 | 扬州市油田金达实业有限公司 | Main shaft braking system under magnetic control |
| CN208138354U (en) * | 2018-02-07 | 2018-11-23 | 小仓离合机（东莞）有限公司 | A kind of novel pneumatic brake |
-
2020
- 2020-12-03 CN CN202011397863.9A patent/CN112729838B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201526626U (en) * | 2009-11-05 | 2010-07-14 | 昆山金发液压机械有限公司 | Friction hydraulic brake |
| JP2012011482A (en) * | 2010-06-30 | 2012-01-19 | Osaka Kiko Co Ltd | Main spindle clamp device of machine tool |
| CN202187200U (en) * | 2010-10-26 | 2012-04-11 | 常州至精精机有限公司 | Clutch brake device of stirring washing machine |
| CN105538017A (en) * | 2014-10-28 | 2016-05-04 | 扬州市油田金达实业有限公司 | Main shaft braking system under magnetic control |
| CN104330223A (en) * | 2014-11-26 | 2015-02-04 | 南京林业大学 | Mechanical sealing property testing device and method for measuring axial force and temperature of sealed end surfaces |
| CN105179524A (en) * | 2015-09-08 | 2015-12-23 | 重庆速腾机械制造有限公司 | Spring cone brake |
| CN208138354U (en) * | 2018-02-07 | 2018-11-23 | 小仓离合机（东莞）有限公司 | A kind of novel pneumatic brake |
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| Publication number | Publication date |
|---|---|
| CN112729838B (en) | 2022-09-20 |
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