CN218343754U - Traction steering compensation mechanism - Google Patents
Traction steering compensation mechanism Download PDFInfo
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- CN218343754U CN218343754U CN202121887308.4U CN202121887308U CN218343754U CN 218343754 U CN218343754 U CN 218343754U CN 202121887308 U CN202121887308 U CN 202121887308U CN 218343754 U CN218343754 U CN 218343754U
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Abstract
The utility model discloses a traction steering compensation mechanism, which relates to the field of airplane traction equipment, and adopts the technical scheme that the traction mechanism comprises a traction rod main body, wherein the traction rod main body comprises a main rod, one end of the main rod is connected with a telescopic rod, and a main pulley is rotationally arranged on a rod body of the main rod; the telescopic rod comprises a fixed rod fixedly connected with the end part of the main rod, the outer side of the fixed rod is sleeved and slidably connected with a movable rod, and the movable rod is connected with the traction frame; a longitudinal groove is correspondingly arranged at the joint of the fixed rod and the movable rod, and penetrates through the fixed rod and the movable rod; the longitudinal groove is a long groove, a safety pin is arranged in the longitudinal groove, and two ends of the safety pin extend to the outer side of the movable rod. The beneficial effects of the utility model are that: the mechanism can realize the distance compensation between the main pulley and the nose landing gear in the traction operation of the airplane. The flexible distance difference compensation is realized through a simple structure, and the device is simple in overall manufacturing process and low in cost.
Description
Technical Field
The utility model relates to an aircraft pulling equipment field, in particular to pull and turn to compensation mechanism.
Background
In the rod-pulling operation of the three-undercarriage aircraft, the span between the double main undercarriages and the nose undercarriages is large. When the tractor turns, the traction steel wire rope pulley fixed on the traction rod is laterally deviated under the control of the tractor along with the traction rod, and the distance between the pulley and the main undercarriage is changed from the distance when the pulley is straight. If the length of the steel cable pulled by the main landing gear is a fixed value, the distance between the pulley and the main landing gear is required to be a variable value, otherwise accidents of turning failure or steel cable breakage and landing gear damage occur. Therefore, there is a need to design a towing steering compensation mechanism for airplane rodless towing.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a pull and turn to compensation mechanism.
The technical scheme includes that the traction device comprises a traction rod main body, a traction frame, a steel cable and the traction frame connected with the traction rod main body, wherein a main pulley is arranged right above the traction rod main body, two groups of auxiliary pulleys are respectively arranged on two sides above the traction rod main body, the middle of the steel cable is positioned on the outer side of the main pulley, two ends of the steel cable respectively extend to one side far away from the main pulley by bypassing the auxiliary pulleys, and landing gear connecting assemblies are fixedly arranged at two ends of the steel cable; the traction frame adopts among the prior art the nose landing gear connection structure of aircraft traction lever can, undercarriage coupling assembling adopt the prior art center be used for connecting the fast loading and unloading class subassembly of back landing gear auricle can, traction frame and undercarriage coupling assembling all are not this application design point, no longer give unnecessary details here. The traction rod main body comprises a main rod, one end of the main rod is connected with a telescopic rod, and the main pulley is rotatably arranged on a rod body of the main rod;
the telescopic rod comprises a fixed rod fixedly connected with the end part of the main rod, the outer side of the fixed rod is sleeved and slidably connected with a movable rod, and the movable rod is connected with the traction frame;
a longitudinal groove is correspondingly arranged at the joint of the fixed rod and the movable rod and penetrates through the fixed rod and the movable rod; the longitudinal groove is a long groove, a safety pin is arranged in the longitudinal groove, and two ends of the safety pin extend to the outer side of the movable rod.
Preferably, the safety pin comprises a pin rod and limiting blocks arranged at two ends of the pin rod, and the two limiting blocks are respectively arranged at the upper side and the lower side of the movable rod.
Preferably, a rod body of the safety pin is provided with a notch.
Preferably, the main pulley is arranged on the rod body of the main rod through a main pulley frame;
the auxiliary pulley is arranged above the rod body of the movable rod through an auxiliary pulley frame;
the main pulley frame comprises a fixing frame, the fixing frame comprises a hoop body fixedly arranged on the outer side of the main rod, ear plates are symmetrically arranged on two sides of the hoop body, each ear plate is provided with a jack, and each ear plate is connected with the adjusting frame through the jack;
the adjusting frame comprises a support plate which is horizontally arranged, a rotating shaft is arranged on the upper side of the support plate, the main pulley is rotatably connected with the support plate through the rotating shaft, an inserting rod is arranged on the lower side of the support plate corresponding to an inserting hole in the lug plate, and the support plate is inserted into the lug plate through the inserting rod.
The inserted bar is a screw rod, each inserted bar is provided with two limit bolts in threaded connection, and the limit bolts are respectively positioned on the upper side and the lower side of the lug plate. The inserted bar sets up four at least.
The support plate is provided with a v-shaped frame, a v-shaped frame and a v-shaped frame, the lower part of the v-shaped frame is fixedly connected with the support plate, the upper part of the v-shaped frame is fixedly connected with the rotating shaft, and the main pulley is arranged in an opening of the v-shaped frame.
Preferably, the traction frame comprises side plates positioned at two sides, and a horizontal connecting rod is fixedly arranged between the two side plates
A movable rod body of the telescopic rod is provided with a horizontal groove, and the connecting rod penetrates through the horizontal groove;
the connecting rod is connected with the end part of the fixed rod through a spring.
Preferably, the horizontal groove is a long groove, and the connecting rod slides in the horizontal groove in the direction of the axial direction of the movable rod.
Preferably, the connecting rod is towards one side of dead lever is fixed and is provided with the guide block, the guide block is located inside the movable rod and is connected with the movable rod in a sliding manner, one side of the guide block towards the dead lever is fixedly connected with one end of the spring, and the other end of the spring is fixedly connected with the end part of the dead lever.
The connecting rods are at least two. The spring is arranged close to the connecting rod of the fixed rod.
Preferably, each of the secondary pulleys includes two small pulleys disposed up and down, and the steel cable passes through between the two small pulleys.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the mechanism can realize the distance compensation between the main pulley and the nose landing gear in the traction operation of the airplane. The flexible distance difference compensation is realized through a simple structure, and the device is simple in overall manufacturing process and low in cost. And the mechanism can enable the traction rod to be disassembled when the steel cable is disconnected through a safety pin structure, so that the condition that the nose landing gear is damaged is avoided.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 2 is a partially enlarged view of a in fig. 1.
Fig. 3 is a state diagram of the hidden movable rod of fig. 2.
Wherein the reference numerals are: 1. a drawbar body; 11. a main rod; 12. a telescopic rod; 13. a longitudinal slot; 14. A shear pin; 2. a traction frame; 21. a side plate; 22. a connecting rod; 3. a steel cord; 4. a main pulley; 41. a main pulley yoke; 411. a fixed mount; 412. an adjusting bracket; 5. a secondary pulley; 51. and a secondary pulley yoke.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative and are not intended to be limiting.
It should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise specified, "a plurality" means two or more.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1
Referring to fig. 1 and 2, the utility model provides a traction steering compensation mechanism, which comprises a traction rod main body 1, a traction frame 2, a steel cable 3 and a traction frame 2 connected with the traction rod main body 1, wherein a main pulley 4 is arranged right above the traction rod main body 1, two sets of auxiliary pulleys 5 are respectively arranged on two sides above the traction rod main body 1, the middle part of the steel cable 3 is positioned outside the main pulley 4, two ends of the steel cable 3 respectively bypass the auxiliary pulleys 5 and extend to one side far away from the main pulley 4, and two ends of the steel cable 3 are fixedly provided with an undercarriage connecting component; the traction frame 2 adopts the nose landing gear connection structure of aircraft traction lever among the prior art can, landing gear coupling assembling adopt the prior art center be used for connecting the fast loading and unloading class subassembly of rear landing gear auricle can, traction frame 2 and landing gear coupling assembling all are not this application design point, no longer give unnecessary details here. The traction rod main body 1 comprises a main rod 11, one end of the main rod 11 is connected with a telescopic rod 12, and a main pulley 4 is rotatably arranged on a rod body of the main rod 11;
the telescopic rod 12 comprises a fixed rod fixedly connected with the end part of the main rod 11, the outer side of the fixed rod is sleeved and connected with a movable rod in a sliding manner, and the movable rod is connected with the traction frame 2;
a longitudinal groove 13 is correspondingly arranged at the joint of the fixed rod and the movable rod, and the longitudinal groove 13 penetrates through the fixed rod and the movable rod; the longitudinal groove 13 is a long groove, a safety pin 14 is arranged in the longitudinal groove 13, and two ends of the safety pin 14 extend to the outer side of the movable rod.
The safety pin 14 comprises a pin rod and two limit blocks at two ends of the pin rod, wherein the two limit blocks are respectively positioned at the upper side and the lower side of the movable rod.
The body of the shear pin 14 is notched.
Each secondary pulley 5 comprises two small pulleys arranged up and down, and the steel cable 3 passes through the space between the two small pulleys.
When the mechanism is used, one end of the main rod 11, which is far away from the traction frame 2, is fixedly connected with an aircraft tractor, and then the traction frame 2 is connected with a nose landing gear of an aircraft. And (4) connecting the landing gear connecting assembly at the end part of the steel cable 3 with a rear landing gear so as to complete the assembly of the traction rod. When the aircraft is towed by using the towing vehicle, under the condition of a towing force, the length change of the steel cable 3 per se can be ignored, so that the steel cable 3 is considered to be unchanged in length, and when the towing vehicle steers under the triangular front and rear undercarriage positioning, the mechanism steers along with the steering, and at the moment, the relative distance between the main pulley 4 and the front undercarriage does not move in a circular motion with equal radius, but the distance between the main pulley 4 and the front undercarriage is prolonged along with the increase of a steering angle. The mechanism adopts a structural form that the traction rod main body 1 is divided into a main rod 11 and a telescopic rod 12, and when the mechanism turns, the telescopic rod 12 is prolonged corresponding to the change of the distance between the main pulley 4 and the nose landing gear. Thereby realizing the steering compensation effect of the rod traction of the airplane. Avoid the wholly fixed body of rod fracture and the danger that causes when pulling.
In addition, the safety pin 14 is arranged in the longitudinal groove 13, if the steel cable 3 is broken during traction, the telescopic rod 12 can be stretched to the limit, then the safety pin 14 is broken under shearing force, and the traction frame 2 and the movable rod are separated from the fixed rod, so that the condition that the front landing gear is damaged due to forced pulling when the steel cable 3 is broken is avoided.
Example 2
On the basis of embodiment 1, the main pulley 4 is arranged on the rod body of the main rod 11 through the main pulley frame 41;
the auxiliary pulley 5 is arranged above the rod body of the movable rod through an auxiliary pulley frame 51;
the main pulley frame 41 comprises a fixing frame 411, the fixing frame 411 comprises a hoop body fixedly arranged on the outer side of the main rod 11, ear plates are symmetrically arranged on two sides of the hoop body, each ear plate is provided with an insertion hole, and each ear plate is connected with the adjusting frame 412 through the insertion hole;
the adjusting frame 412 comprises a horizontally arranged support plate, a rotating shaft is arranged on the upper side of the support plate, the main pulley 4 is rotatably connected with the support plate through the rotating shaft, an inserting rod is arranged on the lower side of the support plate corresponding to the inserting hole in the lug plate, and the support plate is inserted into the lug plate through the inserting rod.
The inserted bar is a screw rod, two limiting bolts are in threaded connection with each inserted bar, and the limiting bolts are respectively positioned on the upper side and the lower side of the lug plate. The inserted bar sets up four at least.
The support plate is provided with a v-shaped frame, a v-shaped frame and a v-shaped frame, the lower part of the v-shaped frame is fixedly connected with the support plate, the upper part of the v-shaped frame is fixedly connected with the rotating shaft, and the main pulley 4 is arranged in an opening of the v-shaped frame.
Through this structure, the steadiness that main pulley 4 and mobile jib 11 are connected has been ensured on the one hand, because main pulley 4 need bear great power when pulling in addition, wearing and tearing easily relatively, this structure is more convenient to the maintenance dismouting of the 4 utmost points pivots of main pulley.
Example 3
Referring to fig. 3, on the basis of the above embodiment, the traction frame 2 includes side plates 21 at both sides, and a horizontal connecting rod 22 is fixedly arranged between the two side plates 21
A horizontal groove is formed in the movable rod body of the telescopic rod 12, and the connecting rod 22 penetrates through the horizontal groove;
the connecting rod 22 is connected to the end of the fixed rod by a spring 6.
With this configuration, the spring 6 is provided between the fixed lever and the connecting lever while ensuring the connection of the traction frame 2 with the movable lever, and when traction is performed, the connecting lever 22 is pulled by the fixed lever through the spring 6 in a natural state of the spring 6, thereby pulling the movable lever, in which state the safety pin 14 is located at the middle position of the longitudinal groove 13. When steering, the spring 6, i.e. the telescopic rod 12, is stretched as the distance between the main pulley 3 and the nose landing gear increases. When the tractor returns to the straight line, the spring 6 resets, and the telescopic link 12 resets.
Example 4
In embodiment 3, the horizontal groove is an elongated groove, and the connection rod 22 slides in the horizontal groove in the axial direction of the movable rod.
The connecting rod 22 is fixed towards one side of the dead lever and is provided with a guide block, the guide block is positioned inside the movable rod and is in sliding connection with the movable rod, one side of the guide block towards the dead lever is fixedly connected with one end of the spring 6, and the other end of the spring 6 is fixedly connected with the end part of the dead lever.
Through this structure, connecting rod 22 has the surplus of activity in the horizontal groove, combines the buffering of spring 6, no matter be in the tractive in-process of tractor, or under the special circumstances when the cable wire breaks, all makes the buffer capacity have between the pole wall of connecting rod 22 and dead lever, because the dead lever is hollow barrel, this structure can reduce the dead lever section of thick bamboo wall and exert the possibility of very big shear force to connecting rod 22 in the twinkling of an eye, extension fixture life.
At least two connecting rods 22 are provided. The spring 6 is arranged close to the connecting rod 22 of the fixing rod.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. The traction steering compensation mechanism comprises a traction rod main body (1), a traction frame (2), a steel cable (3) and the traction frame (2) connected with the traction rod main body (1), wherein a main pulley (4) is arranged right above the traction rod main body (1), two groups of auxiliary pulleys (5) are respectively arranged on two sides above the traction rod main body (1), the middle of the steel cable (3) is positioned on the outer side of the main pulley (4), two ends of the steel cable (3) respectively extend to one side far away from the main pulley (4) by bypassing the auxiliary pulleys (5), and undercarriage connecting components are fixedly arranged at two ends of the steel cable (3); the draw bar is characterized in that the draw bar main body (1) comprises a main bar (11), one end of the main bar (11) is connected with a telescopic rod (12), and the main pulley (4) is rotatably arranged on a bar body of the main bar (11);
the telescopic rod (12) comprises a fixed rod fixedly connected with the end part of the main rod (11), the outer side of the fixed rod is sleeved and connected with a movable rod in a sliding manner, and the movable rod is connected with the traction frame (2);
a longitudinal groove (13) is correspondingly arranged at the joint of the fixed rod and the movable rod, and the longitudinal groove (13) penetrates through the fixed rod and the movable rod; vertical groove (13) are rectangular groove, set up safety pin (14) in vertical groove (13), and safety pin (14) both ends extend to the movable rod outside.
2. The traction steering compensation mechanism according to claim 1, wherein the safety pin (14) comprises a pin rod and two limit blocks at two ends of the pin rod, and the two limit blocks are respectively located at the upper side and the lower side of the movable rod.
3. Traction steering compensation mechanism according to claim 2, characterized in that the shank of the safety pin (14) is notched.
4. Traction steering compensation mechanism according to claim 1, characterized in that the main pulley (4) is arranged on the body of the main rod (11) by means of a main pulley yoke (41);
the auxiliary pulley (5) is arranged above the rod body of the movable rod through an auxiliary pulley frame (51);
the main pulley frame (41) comprises a fixing frame (411), the fixing frame (411) comprises a hoop body fixedly arranged on the outer side of the main rod (11), lug plates are symmetrically arranged on two sides of the hoop body, each lug plate is provided with a jack, and the lug plates are connected with the adjusting frame (412) through the jacks;
the adjusting frame (412) comprises a horizontally arranged support plate, a rotating shaft is arranged on the upper side of the support plate, the main pulley (4) is rotatably connected with the support plate through the rotating shaft, an inserting rod is arranged on the lower side of the support plate corresponding to an inserting hole in the lug plate, and the support plate is inserted into the lug plate through the inserting rod.
5. Traction steering compensation mechanism according to claim 1, characterized in that the traction frame (2) comprises side plates (21) at both sides, between which side plates (21) a horizontal connecting rod (22) is fixedly arranged
A movable rod body of the telescopic rod (12) is provided with a horizontal groove, and the connecting rod (22) penetrates through the horizontal groove;
the connecting rod (22) is connected with the end part of the fixed rod through a spring (6).
6. Traction steering compensation mechanism according to claim 5, characterized in that the horizontal slot is an elongated slot, in which the connecting rod (22) slides in the axial direction of the movable rod.
7. The traction steering compensation mechanism according to claim 5, wherein the connecting rod (22) is fixedly provided with a guide block at a side facing the fixed rod, the guide block is positioned inside the movable rod and is slidably connected with the movable rod, one side of the guide block facing the fixed rod is fixedly connected with one end of the spring (6), and the other end of the spring (6) is fixedly connected with the end of the fixed rod.
8. Traction steering compensation mechanism according to any of claims 1-7, characterized in that each secondary pulley (5) comprises two small pulleys placed one above the other, between which the wire rope (3) is passed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121887308.4U CN218343754U (en) | 2021-08-12 | 2021-08-12 | Traction steering compensation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121887308.4U CN218343754U (en) | 2021-08-12 | 2021-08-12 | Traction steering compensation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218343754U true CN218343754U (en) | 2023-01-20 |
Family
ID=84921322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121887308.4U Active CN218343754U (en) | 2021-08-12 | 2021-08-12 | Traction steering compensation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218343754U (en) |
-
2021
- 2021-08-12 CN CN202121887308.4U patent/CN218343754U/en active Active
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