CN218628904U - Two-degree-of-freedom half-mold supporting device for slowing down test model - Google Patents
Two-degree-of-freedom half-mold supporting device for slowing down test model Download PDFInfo
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- CN218628904U CN218628904U CN202222703644.XU CN202222703644U CN218628904U CN 218628904 U CN218628904 U CN 218628904U CN 202222703644 U CN202222703644 U CN 202222703644U CN 218628904 U CN218628904 U CN 218628904U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a two-degree-of-freedom half-mold supporting device for a slow-down test model, belonging to the technical field of gust tests; the device is of an integral structure and is arranged on the slow-down test model by being connected with a special square window in a matching way, and comprises an installation foundation plate, and a sinking and floating movement mechanism, a pitching rotation mechanism, a braking mechanism, a sinking and floating force-increasing balance mechanism and a pitching resetting mechanism which are arranged on the installation foundation plate; the sinking-floating movement mechanism comprises a linear guide rail and a pitching mechanism mounting plate, and limiting buffers are fixedly arranged on the mounting base plates corresponding to the upper end and the lower end of the pitching mechanism mounting plate; the sinking-floating force-increasing balance mechanism consists of two balance cylinders, a steel wire rope and two pairs of reversing wheels. The utility model discloses increase spacing buffer protection device in strutting arrangement's guide rail top, below, avoid causing the model to damage because of the impact that the instantaneous motion appears to through the supplementary lift device elimination gravity difference influence of ups and downs reinforcement balance mechanism, improve the security of device.
Description
Technical Field
The utility model relates to a for slow down test model provides the strutting arrangement who has ups and downs and every single move degree of freedom, concretely relates to two degree of freedom half supporting arrangement for slow down test model belongs to gust experimental technical field.
Background
The two-degree-of-freedom half-mold supporting device is used for slowing down the test model and providing a supporting device with sinking-floating and pitching degrees of freedom for the test model, can perform pitching motion around a shaft, and can drive the sliding block to perform sinking-floating motion in a certain range along the guide rail.
When the existing two-degree-of-freedom supporting device is tested, a large sinking and floating moving speed can be generated instantaneously under the action of a load, and the model and the whole system can be damaged due to instantaneous impact. In order to ensure the safety of the test, the pitch angle movement range needs to be limited, and an emergency braking function needs to be added if necessary. In addition, when a two-degree-of-freedom supporting device is adopted for testing, the model is difficult to simultaneously consider the similarity of the mode and the gravity, and the supporting device can also cause the addition of extra additional mass in the rigid body motion.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at: the two-freedom-degree half-mold supporting device for slowing down the test model is provided, limiting buffer protecting devices are additionally arranged above and below a guide rail of the supporting device, the damage to the model caused by the impact caused by the instantaneous motion is avoided, the gravity difference influence is eliminated by the aid of the sinking-floating force-boosting balancing mechanism to assist the lifting device, and the test safety of the device is improved.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a two-degree-of-freedom half-mold supporting device for a slow-down test model is of an integral structure, is connected to a special square window in a matching mode and is arranged on the slow-down test model, and comprises an installation foundation plate, a sinking and floating motion mechanism, a pitching rotation mechanism, a braking mechanism, a sinking and floating force-increasing balance mechanism and a pitching resetting mechanism, wherein the sinking and floating motion mechanism, the pitching rotation mechanism, the braking mechanism, the sinking and floating force-increasing balance mechanism and the pitching resetting mechanism are arranged on the installation foundation plate;
the sinking-floating movement mechanism comprises linear guide rails fixedly connected to two sides of the installation base plate in parallel and a pitching mechanism installation plate connected to the upper ends of the linear guide rails in a sliding fit manner, and limiting buffers are fixedly arranged on the installation base plates corresponding to the upper end and the lower end of the pitching mechanism installation plate;
the sinking-floating boosting balance mechanism consists of two balance cylinders, a steel wire rope and two pairs of reversing wheels which are symmetrically arranged on two outer sides of the pitching mechanism mounting plate, the balance cylinders are connected to the mounting foundation plate through fixing holes which vertically penetrate through the fixing seat, the two pairs of reversing wheels are fixed at the upper end of the mounting foundation plate in parallel, one end of the steel wire rope is fixedly connected to the balance cylinders, and the other end of the steel wire rope sequentially bypasses the corresponding balance cylinders and the reversing wheels arranged on one side of the upper end of the pitching mechanism mounting plate and fixedly connected to the upper end of the pitching mechanism mounting plate;
every single move slewing mechanism connects in the pivot hole that every single move mechanism mounting panel middle part set up through pivot sleeve and bearing cooperation, sets up between the upper end of every single move slewing mechanism and every single move mechanism mounting panel arrestment mechanism sets up between the lower extreme of every single move slewing mechanism and every single move mechanism mounting panel every single move canceling release mechanical system.
The pitching rotating mechanism comprises a pitching main shaft which is connected in the rotating shaft sleeve and the bearing in a matching manner, and a transmission gear connected to the front end of the pitching main shaft; the braking mechanism comprises a disc brake fixedly connected to the upper end of the pitching mechanism mounting plate and a brake disc matched with the disc brake to clamp the brake, and the brake disc is fixedly connected to a pitching main shaft located at the rear end of the transmission gear; the pitching resetting mechanism comprises a speed reducing motor, a clutch and a pinion, the lower end of the speed reducing motor, which corresponds to the pitching main shaft, is fixedly connected to the pitching mechanism mounting plate, an output shaft of the speed reducing motor is in transmission connection with the pinion through the clutch, and the pinion is in meshing connection with the lower end of the transmission gear.
And the pitching main shaft positioned at the front end of the transmission gear is also fixedly connected with a ring type encoder for detecting the pitching angle of the main shaft.
The linear guide rail is a linear guide rail with a brake caliper, two sides of the rear part of the pitching mechanism mounting plate are connected to the linear guide rail in a sliding mode through connecting guide rail clamping devices, and sinking and floating braking is achieved through the guide rail clamping devices.
Be located the every single move mechanism mounting panel outside be parallel to the every single move mechanism mounting panel on the installation foundatin plate and be provided with the grating chi that carries out position detection to ups and downs motion, the detection precision of grating chi is 0.01mm.
The limiting buffers are fixed hydraulic buffers, the number of the limiting buffers is four, and the limiting buffers are respectively and fixedly connected to the installation foundation plate corresponding to the upper ends and the lower ends of the linear guide rails on the two sides.
The balance cylinder is connected and driven by a nitrogen bottle providing constant output force, and weight balancing is carried out on the two-freedom-degree half-mold supporting device by changing the pressure in the nitrogen bottle.
The beneficial effects of the utility model are that: the device of the utility model overcomes the problem that the model and the whole system may be damaged due to the instant impact under the load effect while meeting the test requirements, and the limiting buffer protection devices are added above and below the guide rail of the supporting device, and the braking mechanism is added for the mechanical limiting of the pitching motion, so that the emergency braking during the pitching motion can be realized, and the gravity difference influence is eliminated through the sinking-floating force-increasing balancing mechanism; the stability and the security of test device have been improved, and the test precision is higher.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic structural diagram of the ups and downs movement mechanism and the ups and downs force-increasing balance mechanism in FIG. 1;
FIG. 3 is a schematic structural diagram of the pitch rotation mechanism, the brake mechanism and the pitch return mechanism in FIG. 1;
fig. 4 is a side view of fig. 3.
In the figure, 1-a base plate, 2-a linear guide rail, 3-a pitching mechanism mounting plate, 4-a limiting buffer, 5-a balance cylinder, 6-a steel wire rope, 7-a reversing wheel, 8-a fixed seat, 9-a rotating shaft sleeve, 10-a bearing, 11-a pitching main shaft, 12-a transmission gear, 13-a disc brake, 14-a brake disc, 15-a speed reducing motor, 16-a clutch, 17-a pinion, 18-a ring type encoder and 19-a grating ruler are arranged.
Detailed Description
The invention is further explained below with reference to the drawings and the embodiments.
The embodiment is as follows: as shown in fig. 1, the utility model provides a two-degree-of-freedom half-mold supporting device for a slow-down test model, the two-degree-of-freedom half-mold supporting device is of an integral structure and is installed on the slow-down test model in a special square window through matching connection, the special square window is used as an installation base of the two-degree-of-freedom half-mold supporting device, the main size and the interface of the two-degree-of-freedom half-mold supporting device are completely consistent, and the consistency of the interface and the installation surface is ensured; the two-degree-of-freedom half-mode supporting device comprises a mounting foundation plate 1, a sinking and floating movement mechanism, a pitching rotation mechanism, a braking mechanism, a sinking and floating force-increasing balance mechanism and a pitching resetting mechanism, wherein the sinking and floating movement mechanism, the pitching rotation mechanism, the braking mechanism, the sinking and floating force-increasing balance mechanism and the pitching resetting mechanism are integrally mounted on the mounting foundation plate 1, and the two-degree-of-freedom half-mode supporting device is fixedly connected to a special steel window through a plurality of screw holes formed in the periphery of the mounting foundation plate 1.
As shown in fig. 2, the sinking-floating movement mechanism comprises a linear guide rail 2 and a pitching mechanism mounting plate 3, the linear guide rail 2 is provided with two linear guide rails which are fixedly connected to two sides of the mounting foundation plate 1 in parallel, the linear guide rail 2 is a linear guide rail with a brake caliper, two sides of the rear part of the pitching mechanism mounting plate 3 are connected to the linear guide rail 2 in a sliding manner through a connecting guide rail caliper, and sinking-floating braking is realized through the guide rail caliper; the pitching mechanism mounting plate 3 is made of Q355 steel and is fixed on the linear guide rail 2 with the brake calipers, the linear guide rail 2 with the brake calipers is made of a Lishile 65 guide rail, and the guide rail clamp is made of a KWH65 guide rail clamp and is provided with four guide rails.
The installation foundation plates 1 corresponding to the upper end and the lower end of the pitching mechanism installation plate 3 are fixedly connected with limiting buffers 4 through bolts, so that mechanical components are prevented from being damaged due to overshoot during sinking and floating movement; the limiting buffers 4 are fixed hydraulic buffers, four limiting buffers are arranged, and the limiting buffers are respectively and fixedly connected to the installation foundation plate 1 corresponding to the upper ends and the lower ends of the linear guide rails 2 on the two sides; the model of the fixed hydraulic damper was selected as EN64 × 100.
Be located the installation foundatin plate 1 in the pitching mechanism mounting panel 3 outside and go up and be on a parallel with pitching mechanism mounting panel 3 fixedly connected with grating chi 19, grating chi 19 is used for carrying out position detection to ups and downs motion, and its detection precision is 0.01mm.
The sinking-floating force-increasing balance mechanism consists of two balance cylinders 5, a steel wire rope 6 and two pairs of reversing wheels 7, wherein the two balance cylinders 5 are symmetrically arranged at two outer sides of the pitching mechanism mounting plate 3, and the balance cylinders 5 are connected to the mounting base plate 1 through fixing holes vertically penetrating through a fixing seat 8; two pairs of reversing wheels 7 are fixed in parallel at the upper end of the installation foundation plate 1, one end of a steel wire rope 6 is fixedly connected to the balance cylinder 5, and the other end of the steel wire rope sequentially bypasses the reversing wheels 7 which are respectively arranged on one side of the upper ends of the balance cylinder 5 and the pitching mechanism installation plate 3 and are fixedly connected to the upper end of the pitching mechanism installation plate 3.
The sinking-floating boosting balance mechanism adopts two balance cylinders 5 to meet the balancing requirements of the self weight of the mechanism and the weight of a model, acts on the sinking-floating movement mechanism through a steel wire rope 6, is driven by a nitrogen cylinder 5 to provide constant output force, and performs weight balancing on the two-degree-of-freedom half-mold supporting device by changing the pressure in the nitrogen cylinder.
As shown in fig. 3 and 4, the pitching rotating mechanism is connected in a rotating shaft hole arranged in the middle of the pitching mechanism mounting plate 3 in a matching manner through a rotating shaft sleeve 9 and a bearing 10, the pitching rotating mechanism comprises a pitching main shaft 11 and a transmission gear 12, the rotating shaft sleeve 9 is arranged in the rotating shaft hole of the pitching mechanism mounting plate 3, the bearing 10 is connected between the rotating shaft sleeve 9 and the pitching main shaft 11 in a matching manner, and the transmission gear 12 is fixedly connected at the front end of the pitching main shaft 11; and an annular encoder 18 for detecting the pitching angle of the main shaft is fixedly connected to the pitching main shaft 11 positioned at the front end of the transmission gear 12.
A braking mechanism is arranged between the pitching rotation mechanism and the upper end of the pitching mechanism mounting plate 3, the braking mechanism comprises a disc brake 13 and a brake disc 14, the disc brake 13 is fixedly connected to the upper end of the pitching mechanism mounting plate 3 through a base, a clamping member of the disc brake 13 is matched with the brake disc 14 in a clamping manner, and the brake disc 14 is fixedly connected to a pitching main shaft 11 located at the rear end of the transmission gear 12; the model number of the disc brake 13 is SBD130-E.
A pitching resetting mechanism is arranged between the pitching rotating mechanism and the lower end of the pitching mechanism mounting plate 3, the pitching resetting mechanism comprises a speed reducing motor 15, a clutch 16 and a pinion 17, the lower end of the speed reducing motor 15 corresponding to the pitching main shaft 11 is fixedly connected to the pitching mechanism mounting plate 3, an output shaft of the speed reducing motor 15 is in transmission connection with the pinion 17 through the clutch 16, and the pinion 17 is in meshing connection with the lower end of the transmission gear 12.
The motor can be Siemens 1LE three-phase asynchronous motor with the model of 1LE0001-1BA23-3FA4, and the reducer is bevel gear-bevel gear type gear box.
The working principle is as follows:
in the test process, the pitching mechanism mounting plate 3 integrally moves up and down along the linear guide rail 2, once the model moves too fast, the model can impact the limiting buffers 4 at the two ends, and the limiting buffers 4 can generate elastic force opposite to the movement direction due to compression, so that the buffering protection effect is achieved.
When the disc brake 13 acts, the brake disc 14 is clamped to realize pitch braking; when the pitching main shaft 11 needs to reset, the clutch 16 is closed, and the reducing motor 15 drives the pinion 17 and the transmission gear 12 on the pitching main shaft 11 to reset the main shaft; when the speed reducing motor 15 reciprocates, the clutch 16 drives the pinion 17 and the transmission gear 12 to reciprocate, namely the pitching motion of the equipment is realized; spindle pitch angle detection is detected by a spindle tail ring encoder 18.
When the sinking and floating mechanism and the pitching mechanism descend due to self gravity, the pressure in the nitrogen cylinder is reduced, the balance cylinder 5 can generate downward pressure to drive the steel wire rope 6 to move downwards, the downward pressure is connected with the reversing wheel 7 through the steel wire rope 6 to be converted into upward pulling force, and the purpose of balancing the whole gravity is achieved.
The two-degree-of-freedom half-mold supporting device is in the following state in the test: before the test, the sinking and floating freedom degree and the pitching freedom degree of the device are in a locked state, the longitudinal displacement and the attack angle of the model are adjusted to be in zero positions through the mechanism, and the weight of the model is adjusted to be a set value through the sinking and floating force-increasing balance mechanism; after the flow field is established, the brake removes the limitation through remote control, the model sinking and floating and pitching freedom degree is released, and a flutter state test is carried out; when the test is finished or emergency braking is needed due to the divergence of the model motion in the test process, the brake works, the model sinking and floating and pitching freedom degrees are locked again, and the wind field is closed.
The device of the utility model overcomes the problem that the model and the whole system may be damaged due to the instant impact under the load effect while meeting the test requirements, and the limiting buffer protection devices are added above and below the guide rail of the supporting device, and the braking mechanism is added for the mechanical limiting of the pitching motion, so that the emergency braking during the pitching motion can be realized, and the gravity difference influence is eliminated through the sinking-floating force-increasing balancing mechanism; the stability and the security of test device have been improved, and the test precision is higher.
The above description is only used for illustrating the technical solutions of the present invention and not for limiting the same, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The utility model provides a two degree of freedom half mold strutting arrangement for slowing down test model which characterized in that: the two-degree-of-freedom half-mold supporting device is of an integral structure, is connected to a special square window in a matching manner, is arranged on a slow-down test model, and comprises an installation foundation plate (1), and a sinking-floating movement mechanism, a pitching rotation mechanism, a braking mechanism, a sinking-floating boosting balance mechanism and a pitching resetting mechanism which are arranged on the installation foundation plate (1), and is fixedly connected to the special steel window through the installation foundation plate (1);
the sinking and floating movement mechanism comprises linear guide rails (2) which are fixedly connected to two sides of an installation foundation plate (1) in parallel and a pitching mechanism installation plate (3) which is connected to the upper ends of the linear guide rails (2) in a sliding fit manner, and limiting buffers (4) are fixedly arranged on the installation foundation plate (1) corresponding to the upper end and the lower end of the pitching mechanism installation plate (3);
the sinking-floating boosting balance mechanism is composed of two balance cylinders (5) symmetrically arranged on two outer sides of the pitching mechanism mounting plate (3), a steel wire rope (6) and two pairs of reversing wheels (7), the balance cylinders (5) are connected to the mounting foundation plate (1) through fixing holes vertically penetrating through the fixing seats (8), the two pairs of reversing wheels (7) are fixed at the upper end of the mounting foundation plate (1) in parallel, one end of the steel wire rope (6) is fixedly connected to the balance cylinders (5), and the other end of the steel wire rope sequentially bypasses the reversing wheels (7) respectively corresponding to the balance cylinders (5) and the upper end side of the pitching mechanism mounting plate (3) and fixedly connected to the upper end of the pitching mechanism mounting plate (3);
every single move slewing mechanism connects in the pivot hole that every single move mechanism mounting panel (3) middle part set up through pivot sleeve (9) and bearing (10) cooperation, sets up between the upper end of every single move slewing mechanism and every single move mechanism mounting panel (3) arrestment mechanism sets up between the lower extreme of every single move slewing mechanism and every single move mechanism mounting panel (3) every single move canceling release mechanical system.
2. The two-degree-of-freedom half-mold supporting device for the slowing test model of claim 1, wherein: the pitching rotation mechanism comprises a pitching main shaft (11) which is connected in the rotating shaft sleeve (9) and the bearing (10) in a matching manner, and a transmission gear (12) which is connected to the front end of the pitching main shaft (11); the braking mechanism comprises a disc brake (13) fixedly connected to the upper end of the pitching mechanism mounting plate (3) and a brake disc (14) matched with the disc brake (13) for clamping and braking, and the brake disc (14) is fixedly connected to a pitching main shaft (11) located at the rear end of the transmission gear (12); the pitching resetting mechanism comprises a speed reducing motor (15), a clutch (16) and a pinion (17), the lower end of the speed reducing motor (15) corresponding to the pitching main shaft (11) is fixedly connected to the pitching mechanism mounting plate (3), an output shaft of the speed reducing motor (15) is in transmission connection with the pinion (17) through the clutch (16), and the pinion (17) is in meshing connection with the lower end of the transmission gear (12).
3. The two-degree-of-freedom mold half supporting device for slowing down a test model according to claim 2, wherein: and a ring type encoder (18) for detecting the pitching angle of the main shaft is fixedly connected to the pitching main shaft (11) positioned at the front end of the transmission gear (12).
4. The two-degree-of-freedom half-mold supporting device for the slowing test model of claim 1, wherein: the linear guide rail (2) is a linear guide rail with brake calipers, two sides of the rear part of the pitching mechanism mounting plate (3) are connected to the linear guide rail (2) in a sliding mode through connecting guide rail clamping devices, and sinking and floating braking is achieved through the guide rail clamping devices.
5. The two-degree-of-freedom mold half supporting device for slowing down a test model according to claim 1, wherein: be located the every single move mechanism mounting panel (3) outside be parallel to every single move mechanism mounting panel (3) on installation foundatin plate (1) and be provided with grating chi (19) that carry out the position detection to ups and downs motion, the detection precision of grating chi (19) is 0.01mm.
6. The two-degree-of-freedom half-mold supporting device for the slowing test model of claim 1, wherein: the limiting buffer (4) is a fixed hydraulic buffer, four limiting buffers are arranged, and the upper end and the lower end of each limiting buffer (4) corresponding to the linear guide rails (2) on the two sides are fixedly connected to the installation foundation plate (1).
7. The two-degree-of-freedom mold half supporting device for slowing down a test model according to claim 1, wherein: the balance cylinder (5) is driven by a nitrogen bottle which provides constant output force in a connecting mode, and weight balancing is carried out on the two-degree-of-freedom half-mold supporting device by changing the pressure in the nitrogen bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222703644.XU CN218628904U (en) | 2022-10-14 | 2022-10-14 | Two-degree-of-freedom half-mold supporting device for slowing down test model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222703644.XU CN218628904U (en) | 2022-10-14 | 2022-10-14 | Two-degree-of-freedom half-mold supporting device for slowing down test model |
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| Publication Number | Publication Date |
|---|---|
| CN218628904U true CN218628904U (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222703644.XU Active CN218628904U (en) | 2022-10-14 | 2022-10-14 | Two-degree-of-freedom half-mold supporting device for slowing down test model |
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| CN (1) | CN218628904U (en) |
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2022
- 2022-10-14 CN CN202222703644.XU patent/CN218628904U/en active Active
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