CN203719872U - Special axis angle adjustable lifting mechanism for wind tunnel - Google Patents

Abstract

The utility model relates to an angle-adjustable lifting mechanism for a special axis of a wind tunnel. The ground icing meteorological condition simulation system adopts a mobile icing wind tunnel, and the icing wind tunnel has an adjustable axis angle to meet the test requirements, and a special lifting mechanism with an adjustable axis angle for the wind tunnel needs to be specially designed for this purpose. A lifting mechanism with an adjustable angle for the axis of a wind tunnel, which consists of: a horizontal straight line distance compensation system (1), a front vertical lifting system (2), a rear vertical lifting system (3), a guiding overall frame (4) and Pitching and rotating system (5), the front and rear ends of the overall guiding frame are respectively equipped with a front vertical lifting system and a rear vertical lifting system, and the horizontal linear distance compensation system and the pitching and rotating system are installed on the overall guiding frame . The utility model is applied to a wind tunnel axis lifting mechanism.

Description

Lifting mechanism with adjustable axis angle for wind tunnel

Technical field:

The utility model relates to an angle-adjustable lifting mechanism for a special axis of a wind tunnel.

Background technique:

In recent years, due to the continuous development of my country's aircraft technology, my country gradually has a new type of turbofan regional aircraft with completely independent intellectual property rights. The ground test was completed under icing conditions, thus making up for the gap in the simulation system of ground icing meteorological conditions for nacelle anti-icing systems in my country. The ground icing meteorological condition simulation system adopts a mobile icing wind tunnel, and the icing wind tunnel has an adjustable axis angle to meet the test requirements, and a special lifting mechanism with an adjustable axis angle for the wind tunnel needs to be specially designed for this purpose.

Invention content:

The purpose of the utility model is to provide an angle-adjustable lifting mechanism for a special axis of a wind tunnel.

Above-mentioned purpose realizes by following technical scheme:

An angle-adjustable lifting mechanism for a wind tunnel special axis, which consists of: a horizontal straight line distance compensation system, a front vertical lifting system, a rear vertical lifting system, a guiding overall frame and a pitching rotation system. The front and rear ends are respectively equipped with a front vertical lifting system and a rear vertical lifting system, and the horizontal linear distance compensation system and the pitching rotation system are installed on the overall guide frame.

The wind tunnel-specific axis angle-adjustable lifting mechanism, the horizontal linear distance compensation system also has a front guide rail connecting plate, a slider assembly, and an upper slider connecting seat installed sequentially at the lower part of the slider assembly, The lower connecting seat of the slider, the upper part of the slider assembly is installed in the linear sliding guide rail; wherein, the slider assembly is connected with the upper connecting seat of the slider through bolts, and the bolts are screwed with nuts, and the There is also a spring washer between the nuts and the slider assembly; the lower connecting seat of the slider is connected to the overall bracket assembly through bolts, the bolts are screwed to the nuts, and the nuts are connected to the overall bracket There is also a spring washer between the components; the connecting plate of the front guide rail is connected with the connecting seat of the outer wall of the wind tunnel.

The wind tunnel-specific axis-adjustable angle lifting mechanism, the front vertical lifting system also has a front lift push rod, and the upper connection of the lift push rod is connected to the upper connection seat of the lift through the upper pin shaft of the lift push rod and the radial joint bearing, the lower joint of the front elevator push rod is connected to the front lower hinge support and the radial joint bearing through the lower pin shaft of the elevator push rod; wherein, the upper connection seat of the elevator is connected to the front lifting frame On the body, the front lifting frame body is connected to the lower connecting seat of the slider.

The wind tunnel-specific axis-adjustable angle lifting mechanism, the rear vertical lifting system also includes a rear lift push rod, a hole body connecting seat and a radial joint bearing, and the upper connection of the lift push rod passes through the The upper pin of the disturbance is connected with the disturbance elimination device, and the disturbance elimination device is installed on the disturbance elimination base through the disturbance elimination lower pin; the lower joint of the lift push rod is connected to the rear elevator through the lift push rod lower on the connecting seat; wherein, the noise-elimination base is connected to the rear lifting frame body; the hole body connecting seat is installed on the upper end of the front lifting frame body through a set of needle roller bearings, and the complete set The needle bearing is installed in the end cover, and the upper part of the end cover is installed on the hole connecting seat through the end cover shaft.

In the wind tunnel-specific axis angle-adjustable lifting mechanism, the guide integral frame body also has an integral support assembly, and a pressure wheel assembly fixed by bolts on the integral support assembly, and the pressure wheel assembly is passed through It includes a pressure wheel, a pressure wheel pin and a roller bearing; wherein, after the pressure wheel pin passes through the pressure wheel, the roller bearings are installed at both ends thereof.

In the wind tunnel-specific axis angle-adjustable lifting mechanism, the pitch rotation system also includes a rear end cover pin seat, and two rear lower connecting seat assemblies sequentially installed on one side of the rear end cover pin seat and the rear end cover, there is a rear upper connection seat assembly between the rear lower connection seat assembly, the upper end of the rear upper connection seat assembly is installed on the bottom of the hole connection seat through bolts, and the bolts are also screwed There is a spring washer between the nut and the hole connecting seat; the top of the hole connecting seat also has a cover plate connected by a set of bolts, the bolts are screwed to the nut, and the There is also a spring washer between the nut and the cover plate.

The wind tunnel-specific axis-adjustable lifting mechanism, the base of the horizontal linear distance compensation system is connected to the wind tunnel, the slider assembly is connected to the upper connecting seat of the slider, and the The connecting seat on the slider is connected with the front vertical lifting system, and moves vertically up and down along the front guide frame guiding the overall frame body.

In the wind tunnel-specific axis-angle-adjustable lifting mechanism, the slider assembly is connected to the upper connecting seat of the slider, and the upper connecting seat of the slider is connected to the rear vertical lifting system, and Move vertically up and down along the rear guide frame of the guide overall frame body.

The angle-adjustable lifting mechanism for the axis dedicated to the wind tunnel, the front elevator push rod connected to the front lower hinge support, pushes the front elevator connection seat, and the front elevator connection seat is connected to the front elevator frame Body, the front lifting frame body is connected to the lower connecting seat of the slider.

The beneficial effects of the utility model:

1. The design of this utility model combines the horizontal linear distance compensation system, the front vertical lifting system, the rear vertical lifting system, the guide body and the pitching rotation system into a whole. When the lifting heights of the front and rear vertical lifting systems are inconsistent, the horizontal linear distance compensation The linear slider of the system can make up for the change of the linear distance caused by the angle change, and finally realize the adjustable axis angle, which combines the advantages of the vertical lifting system and the variable angle system, in addition to having two independent vertical lifting systems In addition, it also has an axis angle adjustable system, which makes the equipment have a wider range of wind tunnel lifting and angle changing capabilities. The equipment of the present invention can provide not only the horizontal air flow field but also a flow field with variable axis angles during the wind tunnel test, so as to meet the requirements of different tests more widely.

The interference elimination device designed by the utility model can make up for the installation error caused by the engineering installation. Therefore, in order to ensure the good operation of the system, the interference elimination device and the interference elimination base are used to eliminate the error, prevent the system from being stuck, and eliminate the axial And the jamming phenomenon caused by the longitudinal direction error. The interference elimination device eliminates the errors caused by assembly and installation, and the straight line compensation device compensates the change of the straight line distance caused by the angle change.

Description of drawings:

Accompanying drawing 1 is the overall side structure schematic diagram of the utility model.

Accompanying drawing 2 is the overall front structure schematic diagram of the utility model.

Accompanying drawing 3 is the whole back structural representation of the utility model.

In the figure, 1. Horizontal linear distance compensation system; 2. Front vertical lifting system; 3. Rear vertical lifting system; 4. Guide overall frame; 5. Pitching rotation system; ;8. Front lower hinge support; 9. Bolt; 10. Pressure wheel; 11. Pressure wheel pin; 12. Roller bearing; 13. Pressure wheel base; 14. Slider lower connection seat; 15. Nut; 16 .Washer; 17. Bolt; 18. Bolt; 19. Nut; 20. Washer; 21. Bolt; 22. Connecting seat on slider; 23. Bolt; 24. Nut; 25. Spring washer; 26. Slider assembly; 27. Linear sliding guide rail; 28. Integral bracket assembly; 29. Disturbance device; 30. Disturbance upper pin; 31. Disturbance lower pin; 32. Disturbance base; 33. Hole connection seat; 34. End cover; 35. End cover shaft; 36. Front elevator connection seat; 37. Front elevator push rod; 38. Upper pin shaft of elevator push rod; 39. NA4907 complete set of needle roller bearings; 40. Front elevator body; 41. Rear Lift push rod; 42. Bolt; 43. Nut; 44. Spring washer; 45. Lower pin shaft of lift push rod; 46. Bolt; 47. Nut; 48. Spring washer; 49. Bolt; 50. Nut; 51. Spring Washer; 52. Rear upper connecting seat assembly; 53. Rear end cover pin; 54. Rear end cover; 55. Rear lower connecting seat assembly; 56. Rear lifting frame body; 57. Rear elevator connecting seat.

Detailed ways:

Example 1:

An angle-adjustable lifting mechanism for a wind tunnel special axis, which consists of: a horizontal line distance compensation system 1, a front vertical lifting system 2, a rear vertical lifting system 3, a guiding overall frame body 4 and a pitching rotation system 5. The front and rear ends of the overall guiding frame are respectively equipped with a front vertical lifting system and a rear vertical lifting system, and the horizontal linear distance compensation system and the pitching rotation system are installed on the overall guiding frame.

Example 2:

According to the wind tunnel-specific axis angle-adjustable lifting mechanism described in Embodiment 1, the horizontal linear distance compensation system also has a front guide rail connecting plate 7, a slider assembly 26, and the bottom of the slider assembly installed sequentially. The upper connecting seat 22 of the slider and the lower connecting seat 14 of the slider, the upper part of the slider assembly is installed in the linear sliding guide rail 27; wherein, the slider assembly is connected with the upper connecting seat of the slider through bolts 23 , the bolts are screwed to the nuts 24, and there are spring washers 25 between the slider assemblies of the nuts; the lower connecting seat of the sliders is connected to the integral bracket assembly 28 through bolts 17, and The above bolts are screwed to the nuts 15, and there is a spring washer 16 between the nuts and the whole bracket assembly; the front guide rail connecting plate 7 is connected to the outer wall connecting seat of the wind tunnel.

Example 3:

According to the wind tunnel-specific axis-adjustable angle lifting mechanism described in Embodiment 1 or 2, the front vertical lifting system also has a front lift push rod 37, and the upper connection of the lift push rod passes through the lift push rod. The pin shaft 38 is connected to the upper connecting seat 36 and the centripetal joint bearing of the elevator, and the lower joint of the front lifter push rod 37 is connected to the front lower hinge support 8 and the centripetal joint bearing through the lower pin shaft 45 of the lifter push rod; wherein, The upper connecting seat 36 of the elevator is connected to the front lifting frame body 40, and the front lifting frame body 40 is connected to the lower connecting seat 14 of the slider.

Example 4:

According to the wind tunnel-specific axis angle-adjustable lifting mechanism described in Embodiment 3, the rear vertical lifting system further includes a rear lift push rod 41, a hole body connection seat 33 and a radial joint bearing, and the lift push rod The upper connection of 41 is connected to the interference elimination device 29 through the upper pin shaft 30 of the interference elimination, and the interference elimination device is installed on the interference elimination base 32 through the lower pin shaft 31 of the interference elimination; the lower connection of the lift push rod The lower pin shaft of the lifter push rod is connected to the rear elevator connection seat 57; wherein, the noise elimination base is connected to the rear lift frame body 56; the hole body connection seat 33 is passed through a set of needle roller bearings 39 Installed on the upper end of the front elevating frame body, the complete set of needle roller bearings is installed in the end cover 34 , and the top of the end cover is installed on the hole connecting seat through the end cover shaft 35 .

Example 5:

According to the wind tunnel-specific axis angle-adjustable lifting mechanism described in Embodiment 1 or 2, the guide integral frame body also has an integral support assembly 28, and a pressure wheel assembly fixed by bolts 9 on the integral support assembly 6. The pressure wheel assembly generally includes a pressure wheel 10, a pressure wheel pin 11 and a roller bearing 12; wherein, after the pressure wheel pin passes through the pressure wheel, the rollers are installed at both ends thereof sub bearings.

Embodiment 6:

According to the wind tunnel-specific axis angle-adjustable lifting mechanism described in Embodiment 4, the pitch rotation system further includes a rear end cover pin seat 53, and two The rear lower connecting seat assembly 55 and the rear end cover 54, there is a rear upper connecting seat assembly 52 between the rear lower connecting seat assembly, the upper end of the rear upper connecting seat assembly is installed in the hole connected by bolts 49 At the bottom of the seat, the bolt is also screwed with a nut 50, and there is a spring washer 51 between the nut and the hole connecting seat; the top of the hole connecting seat also has a cover connected by a group of bolts 46 plate, the bolts are screwed to the nuts 47, and there is a spring washer 48 between the nuts and the cover plate.

Embodiment 7:

According to the wind tunnel-specific axis angle-adjustable lifting mechanism described in Embodiment 2, the seat bottom of the horizontal linear distance compensation system is connected to the wind tunnel, and the slider assembly is connected to the connecting seat on the slider , the upper connecting seat of the slider is connected with the front vertical lifting system, and moves vertically up and down along the front guide frame guiding the overall frame body.

Embodiment 8:

According to the wind tunnel-specific axis angle-adjustable lifting mechanism described in Embodiment 2, the slider assembly is connected to the upper connecting seat of the slider, and the upper connecting seat of the slider is connected to the rear vertical lift The system is connected, and vertically moves up and down along the rear guide frame of the guide overall frame body.

Embodiment 9:

According to the angle-adjustable lifting mechanism for the wind tunnel dedicated axis described in Embodiment 4, the noise elimination device can eliminate errors caused by workers' installation and processing errors.

Example 10:

According to the wind tunnel-specific axis angle-adjustable lifting mechanism described in Embodiment 3, the front lift push rod 37 connected to the front lower hinge support 8 pushes the front lift connecting seat 36, and the front lift connecting seat 36 is connected to the front lifting frame body 40, and the front lifting frame body 40 is connected to the lower connecting seat 14 of the slider.

Detailed ways:

When the lifting heights of the front and rear lifting systems are inconsistent, along with the vertical lifting of the front vertical lifting system 2, the slider assembly 26 moves forward and backward along the linear sliding guide rail 27 so as to make up for the linear distance caused by the angle change. Change, in order to ensure that the front lifting frame body 40 and the rear lifting frame body 56 move vertically up and down with the elevator, the tightening strength of the bolts 9 can be used to adjust the pressing force of the twenty-four pressure rollers 10 before and after. The greater the force, the tighter the pressure roller 10 presses the front lifting frame body 40, and the more stable the front lifting frame body 40 moves along the vertical direction.

Ensure that the front elevator connecting seat 36 of the system elevator is installed on the front elevator frame body 40, the front elevator push rod 37 is connected with the front elevator connecting seat 36, and the front elevator push rod 37 adopts a self-locking Lim-Tek The screw push rod, the front single fixed operation, provides the angle change power for the whole lifting system through the lift push rod. The maximum thrust of ten tons through the lift push rod transmits power to the front lifting frame body.

Since installation errors may be caused during engineering installation, in order to ensure the good operation of the system, the interference elimination device 29 and the interference elimination base 32 are used to eliminate the errors and prevent the system from being stuck. The upper connection of the interference elimination device 29 adopts a ball hinge connection to adapt to various changes, and the lower connection of the interference elimination device 29 can swing back and forth after being connected to the interference elimination base 32, and the The above-mentioned interference elimination base 32 can be rotated left and right, which can eliminate the jamming phenomenon caused by axial and longitudinal direction errors. In addition, the interference elimination device 29 eliminates errors due to assembly and installation, and compensates for changes in straight-line distances caused by angle changes through the horizontal straight-line distance compensation system.

The transmission process of the front vertical lifting system is: the front lift push rod 37 connected with the front lower hinge support 8 pushes the front lift connecting seat 36, and the front lift connecting seat 36 is connected with the front lifting frame body 40 to drive The front lifting frame body 40 moves up and down, the lower connecting seat 14 of the slider is connected with the front lifting frame body 40 and moves together, and the upper connecting seat 22 of the slider and the lower connecting seat 14 of the slider move together through a pin connection.

The transmission process of the rear vertical lifting system is as follows: the rear lift push rod 41 pushes the interference elimination device 29 connected thereto, and the interference elimination device 29 drives the interference elimination base 32 connected thereto, and the interference elimination base 32 32 drives the vertical motion of the rear lifting frame body 56 that is connected with it.

Claims (9)

1. the elevating mechanism of the special-purpose axis angle adjustable of a kind of wind-tunnel, its composition comprises: horizontal linear compensated distance system, front VTOL (vertical take off and landing) system, rear VTOL (vertical take off and landing) system, whole support body and pitch rotation system lead, it is characterized in that: money VTOL (vertical take off and landing) system and rear VTOL (vertical take off and landing) system are installed respectively in the front and back end of the described whole support body of guiding, on the whole support body of described guiding, described horizontal linear compensated distance system and pitch rotation system are installed.

2. the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 1, it is characterized in that: described horizontal linear compensated distance system also has slide block upper connecting base, the slide block lower connecting base that install successively fromer rail web joint, slide block assembly and described slide block assembly bottom, and described slide block assembly top is installed in linear motion guide; Wherein, described slide block assembly is connected with described slide block upper connecting base by bolt, and the described bolt nut that spins also has spring washer between the slide block assembly described in described nut; Described slide block lower connecting base is connected with integral support assembly by bolt, and the described bolt nut that spins also has spring washer between described nut and described integral support assembly; Described fromer rail web joint is connected with the outer hole wall Connection Block of wind-tunnel.

3. the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 1 and 2, it is characterized in that: described front VTOL (vertical take off and landing) system also has front lifter push rod, the upper junction of described lifter push rod connects lifter upper connecting base and plain radial bearing by lifter push rod upper pin, and the lower junction of described front lifter push rod connects front lower rocker bar bearing and plain radial bearing by lifter push rod lower bearing pin; Wherein, described lifter upper connecting base is connected on front lifting frame body, described front lifting frame body connection sliding block lower connecting base.

4. the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 3, it is characterized in that: described rear VTOL (vertical take off and landing) system also comprises rear lifter push rod, hole body Connection Block and plain radial bearing, the upper junction of described lifter push rod is disturbed upper pin and is connected to disappear and disturb device by disappearing, described disappearing disturbed device and by disappearing, disturbed lower bearing pin and be arranged on to disappear and disturb on pedestal; The lower junction of described lifter push rod is connected on rear lifter Connection Block by lifter push rod lower bearing pin; Wherein, described disappearing disturbed pedestal and is connected on rear lifting frame body; Described hole body Connection Block is arranged on described front lifting frame body upper end by a composition cover needle bearing, and described complete needle bearing is arranged in end cap, and described end cap top is arranged on described hole body Connection Block by end-cover axle.

5. the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 1 and 2, it is characterized in that: the whole support body of described guiding also has integral support assembly, and the pinch roller assembly being bolted on described integral support assembly, logical pinch roller, pinch roller pin and the roller bearing of comprising of described pinch roller assembly; Wherein, described pinch roller pin, through after described pinch roller, is installed described roller bearing at its two ends.

6. the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 4, it is characterized in that: lower connecting base assembly and rear end cap after described pitch rotation system also comprises rear end cap key seat and is arranged on successively two of described rear end cap key seat one side, between described rear lower connecting base assembly, there is rear upper connecting base assembly, described rear upper connecting base assembly upper end is arranged on described body Connection Block bottom, hole by bolt, the described bolt nut that also spins, has spring washer between described nut and described hole body Connection Block; Described body Connection Block top, hole also has by one group of bolted cover plate, and the described bolt nut that spins, also has spring washer between described nut and described cover plate.

7. the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 2, it is characterized in that: the seat end of described horizontal linear compensated distance system is connected with wind-tunnel, described slide block assembly is connected with described slide block upper connecting base, described slide block upper connecting base is connected with described front VTOL (vertical take off and landing) system, and does vertically and move along the front guide frame of the whole support body of described guiding.

8. the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 2, it is characterized in that: described slide block assembly is connected with described slide block upper connecting base, described slide block upper connecting base is connected with described rear VTOL (vertical take off and landing) system, and does vertically and move along the rear guide frame of the whole support body of described guiding.

9. the elevating mechanism of the special-purpose axis angle adjustable of wind-tunnel according to claim 3, it is characterized in that: the front lifter push rod being connected with described front lower rocker bar bearing, lifter Connection Block before promoting, described front lifter Connection Block connects described front lifting frame body, and described front lifting frame body connects described slide block lower connecting base.