Locking device for clamping mechanism of rodless tractor

Abstract

The utility model relates to the technical field of machinery, and discloses a rodless type tractor clamping mechanism locking device which comprises a support, the inner wall of the support is fixedly connected with a fixing plate, the interior of the fixing plate is fixedly connected with a first air cylinder, the output end of the first air cylinder is fixedly connected with a first sliding rod, and the output end of the first sliding rod is fixedly connected with a second sliding rod. The outer wall of the first sliding rod is slidably connected to the interior of the fixing plate, a first push rod is fixedly connected to the outer wall of the first sliding rod, a C-shaped rod is fixedly connected to one end of the first push rod, a first connecting rod is rotatably connected to one end of the C-shaped rod, and a first rotating shaft is fixedly connected to the interior of the first connecting rod. According to the airplane front wheel traction device, the first air cylinder in the fixing plate drives the first sliding rod to move, the problem that an airplane loses balance due to the fact that the airplane front wheel is not correctly clamped and fixed in the traction process is solved, and the effects that the stability of the airplane in the traction process is guaranteed through correct clamping and fixing, and the occurrence probability of safety accidents is reduced are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to a locking device for a clamping mechanism of a rodless tractor. Background Art

[0002] The aircraft towbarless tractor is a modern airport ground support equipment used to tow aircraft during takeoff, landing or maintenance. Unlike traditional towbar tractors, towbarless tractors are not connected to the aircraft through a special towing rod, but directly hold the front wheels of the aircraft through its unique clamping-lifting device to move the aircraft. The clamping mechanism locking device is a key part of the towbarless aircraft tractor. It can ensure that the front wheels are firmly held by the tractor during the movement of the aircraft to prevent the front wheels of the aircraft from falling off or shifting due to shaking or swaying. This locking device is usually hydraulically driven and can adjust the clamping force according to the weight and size of the aircraft to ensure that the front wheels of the aircraft are fixed safely and reliably.

[0003] After searching, a new type of electric omnidirectional towbarless tractor is disclosed in the announcement number: CN206202719U, including a vehicle body, an omnidirectional wheel set, an automatic navigation device, a safety obstacle avoidance device, a clamping and lifting device and a hydraulic control system. The omnidirectional wheel set is installed at the bottom of the vehicle body, the automatic navigation device is installed in the front of the vehicle body, the safety obstacle avoidance device is installed around the vehicle body, the clamping and lifting device is installed in the middle of the vehicle body, and the hydraulic control system is used to drive the clamping and lifting device. The clamping position of the clamping and lifting device of the utility model is close to the middle of the vehicle body, and the counterweight can be achieved by relying on the deadweight of the hydraulic control system without adding additional counterweights; four or eight sets of omnidirectional wheels are used for driving, so the traction power is large and the position and direction control accuracy is high; the hydraulic control system has buffering and emergency unloading functions, and the clamping and lifting process is safe and reliable. In this application, a widened structure is adopted, which can adapt to both single-wheel and double-wheel aircraft landing gear structures. When the aircraft is towed in this way, the front wheels are not correctly clamped and fixed, and may sway or move during the towing process, causing the aircraft to lose balance and may hit nearby obstacles, or cause serious safety accidents when moving at high speeds. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a locking device for the clamping mechanism of a rodless tractor, which aims to improve the problem that the front wheels of an aircraft are not properly clamped and fixed during traction, causing the aircraft to lose balance and causing serious safety accidents when moving at high speed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a locking device of a clamping mechanism of a rodless tractor, comprising a support, an inner wall of the support is fixedly connected to a fixing plate, a cylinder 1 is fixedly connected to the interior of the fixing plate, a sliding rod 1 is fixedly connected to the output end of the cylinder 1, an outer wall of the sliding rod 1 is slidably connected to the interior of the fixing plate, a push rod 1 is fixedly connected to the outer wall of the sliding rod 1, one end of the push rod 1 is fixedly connected to a C-shaped rod, one end of the C-shaped rod is rotatably connected to a connecting rod 1, a rotating shaft 1 is fixedly connected to the interior of the connecting rod 1, an outer wall of the rotating shaft 1 is fixedly connected to a rotating rod, an outer wall of the rotating rod is rotatably connected to the interior of the fixing plate, one end of the rotating rod is fixedly connected to a clamp, and a positioning component is provided on the outer wall of the fixing plate.

[0006] Furthermore, the positioning assembly includes a positioning plate and a baffle, one side of the outer wall of the positioning plate is fixedly connected to the inner wall of the baffle, the other side of the outer wall of the positioning plate is fixedly connected to the outer wall of the fixing plate, and the outer wall of the baffle is fixedly connected to the outer wall of the fixing plate.

[0007] Furthermore, both ends of the sliding rod 1 are fixedly connected to a push rod 2, and the outer wall of the push rod 2 is slidably connected to the inside of the fixed plate.

[0008] Furthermore, one end of the push rod 2 is rotatably connected to a locking plate 1, and an outer wall of the locking plate 1 is rotatably connected to an outer wall of the support.

[0009] Furthermore, a second rotating shaft is fixedly connected to the bottom of the locking plate 1, and a lower surface of the second rotating shaft is rotatably connected to the inside of the support.

[0010] Furthermore, the interior of the locking plate 1 is fixedly connected to the cylinder 2, and the output end of the cylinder 2 is fixedly connected to the slide plate.

[0011] Furthermore, the outer wall of the slide plate is slidably connected to the inside of the locking plate 1, and the inner wall of the slide plate is rotatably connected to the slide rod 2.

[0012] Furthermore, one end of the second sliding rod is rotatably connected to the second connecting rod, the interior of the second connecting rod is fixedly connected to a rotating column, and both ends of the rotating column are rotatably connected to the interior of the first locking plate.

[0013] Furthermore, the outer wall of the second connecting rod is fixedly connected with a clamping plate, and the outer wall of the clamping plate is slidably connected with a locking plate 2.

[0014] Furthermore, a sliding groove is provided inside the second locking plate, and a fixing column is fixedly connected inside the second locking plate.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, firstly, the cylinder 1 inside the fixed plate drives the sliding rod 1 to move, and cooperates with the push rod 1, the C-shaped rod, the connecting rod 1, and the rotating shaft 1 to realize the rotation of the rotating rod, and then the front wheel of the aircraft is clamped and fixed by the clamp at one end of the rotating rod, which solves the problem that the front wheel of the aircraft is not clamped and fixed correctly during towing, causing the aircraft to lose balance, and achieves the effect of correct clamping and fixing to ensure the stability of the aircraft during towing and reduce the probability of safety accidents.

[0017] 2. In the utility model, firstly, the push rod positioning plate and the baffle plate perform preliminary positioning on the front wheel of the aircraft, and then the push rod 2 cooperates with the rotating shaft 2 to drive the locking plate 1 and the locking plate 2 to move, and finally the cylinder 2 cooperates with the slide plate, the slide bar 2, the connecting rod 2, the rotating column, the clamping plate, and the fixing column to lock the front wheel of the aircraft, thereby effectively preventing the front wheel of the aircraft from accidentally moving during the towing process, ensuring the stability of the aircraft during driving, and reducing the potential risks caused by swaying or slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of a locking device for a clamping mechanism of a rodless tractor proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a fixing plate of a locking device for a clamping mechanism of a rodless tractor proposed by the utility model;

[0020] Figure 3 A schematic diagram of the structure of one side of a sliding rod of a locking device for a clamping mechanism of a rodless tractor proposed by the utility model;

[0021] Figure 4 A schematic diagram of the internal structure of a locking plate of a locking device for a clamping mechanism of a rodless tractor proposed by the utility model;

[0022] Figure 5 The utility model is a schematic diagram of the structure of one side of a clamping plate of a locking device of a clamping mechanism of a rodless tractor.

[0023] Legend:

[0024] 1. Support; 2. Fixed plate; 3. Cylinder 1; 4. Slide rod 1; 5. Push rod 1; 6. C-shaped rod; 7. Connecting rod 1; 8. Rotating shaft 1; 9. Rotating rod; 10. Clamp; 11. Positioning plate; 12. Baffle; 13. Push rod 2; 14. Locking plate 1; 15. Cylinder 2; 16. Slide plate; 17. Slide rod 2; 18. Connecting rod 2; 19. Rotating column; 20. Clamp; 21. Fixed column; 22. Slide groove; 23. Locking plate 2; 24. Rotating shaft 2. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-3 The utility model provides an embodiment: a locking device of a clamping mechanism of a rodless tractor, comprising a support 1, the inner wall of the support 1 is fixedly connected with a fixing plate 2, the interior of the fixing plate 2 is fixedly connected with a cylinder 3, the output end of the cylinder 3 is fixedly connected with a sliding rod 4, the outer wall of the sliding rod 4 is slidably connected to the interior of the fixing plate 2, the outer wall of the sliding rod 4 is fixedly connected with a push rod 5, one end of the push rod 5 is fixedly connected with a C-shaped rod 6, one end of the C-shaped rod 6 is rotatably connected with a connecting rod 7, the interior of the connecting rod 7 is fixedly connected with a rotating shaft 8, the outer wall of the rotating shaft 8 is fixedly connected with a rotating rod 9, the outer wall of the rotating rod 9 is rotatably connected to the interior of the fixing plate 2, one end of the rotating rod 9 is fixedly connected with a clamp 10, and the outer wall of the fixing plate 2 is provided with a positioning component;

[0027] Specifically, firstly, the slide bar 4 is driven to move through the output end of the cylinder 3. The slide bar 4 plays a vital role in transmitting the force of the cylinder 3 to the two push rods 5. When the slide bar 4 moves, the push rod 5 will also move accordingly. Through the shape and design of the push rod 5, its movement is converted into the movement of the C-shaped rod 6. The two ends of the C-shaped rod 6 are connected to four connecting rods 7, which carry one end of the rotating rod 9. Through the other end of the rotating rod 9, the clamp 10 is driven to fit with the front wheel, which means the successful positioning and stable clamping of the front wheel of the aircraft, providing a solid guarantee for the safe landing of the aircraft.

[0028] Reference Figure 1-2 The positioning assembly includes a positioning plate 11 and a baffle 12, one side of the outer wall of the positioning plate 11 is fixedly connected to the inner wall of the baffle 12, the other side of the outer wall of the positioning plate 11 is fixedly connected to the outer wall of the fixing plate 2, and the outer wall of the baffle 12 is fixedly connected to the outer wall of the fixing plate 2;

[0029] Specifically, when the front wheel of the aircraft moves to between the positioning plate 11 and the baffle 12 in the positioning assembly, it reaches a specific position and achieves a positioning effect.

[0030] Reference Figure 4-5Both ends of the slide rod 14 are fixedly connected with a push rod 2 13, the outer wall of the push rod 2 13 is slidably connected to the inside of the fixed plate 2, one end of the push rod 2 13 is rotatably connected to a locking plate 14, the outer wall of the locking plate 14 is rotatably connected to the outer wall of the support 1, the bottom of the locking plate 14 is fixedly connected to a rotating shaft 24, the lower surface of the rotating shaft 24 is rotatably connected to the inside of the support 1, the inside of the locking plate 14 is fixedly connected to a cylinder 2 15, the output end of the cylinder 2 15 is fixedly connected to a slide plate 16, the outer wall of the slide plate 16 Slidingly connected to the inside of the locking plate 14, the inner wall of the slide plate 16 is rotatably connected to the sliding rod 2 17, one end of the sliding rod 2 17 is rotatably connected to the connecting rod 2 18, the inside of the connecting rod 2 18 is fixedly connected to a rotating column 19, both ends of the rotating column 19 are rotatably connected to the inside of the locking plate 14, the outer wall of the connecting rod 2 18 is fixedly connected to a clamping plate 20, the outer wall of the clamping plate 20 is slidably connected to a locking plate 23, the inside of the locking plate 23 is provided with a sliding groove 22, and the inside of the locking plate 23 is fixedly connected to a fixed column 21;

[0031] Specifically, first, the two push rods 2 13 are driven by the movement of the slide bar 1 4 to ensure that the locking plate 14 and the locking plate 2 23 rotate accurately inside the support 1. During the operation of the locking system, the slide bar 2 17 is driven to move by the cylinder 2 15, and then one end of the slide bar 2 17 drives one end of the connecting rod 2 18 to move. At the same time, the other end of the connecting rod 2 18 rotates on the outer wall of the rotating column 19, thereby driving the two clamping plates 20 to fit together, with the purpose of clamping and fixing the fixing column 21 inside the locking plate 23. The fixation between the locking plate 14 and the locking plate 23 achieves the effect of locking the front wheel.

[0032] Working principle: When the locking device of the clamping mechanism of the rodless tractor is needed, first, when the front wheel of the aircraft moves to between the positioning plate 11 and the baffle 12, it reaches a specific position to achieve the positioning effect, and then the output end of the cylinder 3 drives the slide bar 4 to move, thereby driving the two push rods 5 to move, and then the movement of the push rod 5 drives the two C-shaped rods 6 to move, and then the four connecting rods 7 are driven to move through the two ends of the C-shaped rod 6, so that one end of the rotating rod 9 is driven to rotate through the connecting rod 7 and the rotating shaft 8, and then the other end of the rotating rod 9 drives the clamp 10 to fit with the front wheel to achieve the clamping effect. At the same time, the movement of the slide bar 4 drives the two push rods 13 The locking plate 14 and the locking plate 23 are moved by the movement of the push rod 13, so that the locking plate 14 and the locking plate 23 are fitted together. Then, the slide plate 16 is driven to move by the output end of the cylinder 15 inside the locking plate 14, thereby driving one end of the slide bar 17 to move, and then driving one end of the connecting rod 18 to move by the other end of the slide bar 17, and then driving the two clamping plates 20 to fit together while the other end of the connecting rod 18 rotates on the outer wall of the rotating column 19, thereby clamping and fixing the fixed column 21 inside the locking plate 23, and then fixing the locking plate 14 and the locking plate 23, thereby achieving the effect of locking the front wheel.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A locking device for a clamping mechanism of a rodless tractor, comprising a support (1), characterized in that: The inner wall of the support (1) is fixedly connected to a fixed plate (2), the interior of the fixed plate (2) is fixedly connected to a cylinder 1 (3), the output end of the cylinder 1 (3) is fixedly connected to a sliding rod 1 (4), the outer wall of the sliding rod 1 (4) is slidably connected to the interior of the fixed plate (2), the outer wall of the sliding rod 1 (4) is fixedly connected to a push rod 1 (5), one end of the push rod 1 (5) is fixedly connected to a C-shaped rod (6), one end of the C-shaped rod (6) is rotatably connected to a connecting rod 1 (7), the interior of the connecting rod 1 (7) is fixedly connected to a rotating shaft 1 (8), the outer wall of the rotating shaft 1 (8) is fixedly connected to a rotating rod (9), the outer wall of the rotating rod (9) is rotatably connected to the interior of the fixed plate (2), one end of the rotating rod (9) is fixedly connected to a clamp (10), and the outer wall of the fixed plate (2) is provided with a positioning component.

2. A locking device for a clamping mechanism of a rodless tractor according to claim 1, characterized in that: The positioning assembly comprises a positioning plate (11) and a baffle (12); one side of the outer wall of the positioning plate (11) is fixedly connected to the inner wall of the baffle (12); the other side of the outer wall of the positioning plate (11) is fixedly connected to the outer wall of the fixing plate (2); and the outer wall of the baffle (12) is fixedly connected to the outer wall of the fixing plate (2).

3. A locking device for a clamping mechanism of a rodless tractor according to claim 1, characterized in that: Both ends of the sliding rod 1 (4) are fixedly connected to a push rod 2 (13), and the outer wall of the push rod 2 (13) is slidably connected to the inside of the fixed plate (2).

4. A locking device for a clamping mechanism of a rodless tractor according to claim 3, characterized in that: One end of the push rod 2 (13) is rotatably connected to a locking plate 1 (14), and the outer wall of the locking plate 1 (14) is rotatably connected to the outer wall of the support (1).

5. A locking device for a clamping mechanism of a rodless tractor according to claim 4, characterized in that: The bottom of the locking plate 1 (14) is fixedly connected to a rotating shaft 2 (24), and the lower surface of the rotating shaft 2 (24) is rotatably connected to the inside of the support (1).

6. A locking device for a clamping mechanism of a rodless tractor according to claim 5, characterized in that: The interior of the locking plate 1 (14) is fixedly connected to the cylinder 2 (15), and the output end of the cylinder 2 (15) is fixedly connected to the slide plate (16).

7. A locking device for a clamping mechanism of a rodless tractor according to claim 6, characterized in that: The outer wall of the slide plate (16) is slidably connected to the interior of the locking plate (14), and the inner wall of the slide plate (16) is rotatably connected to the slide rod (17).

8. A locking device for a clamping mechanism of a rodless tractor according to claim 7, characterized in that: One end of the second sliding rod (17) is rotatably connected to the second connecting rod (18), the interior of the second connecting rod (18) is fixedly connected to a rotating column (19), and both ends of the rotating column (19) are rotatably connected to the interior of the first locking plate (14).

9. A locking device for a clamping mechanism of a rodless tractor according to claim 8, characterized in that: The outer wall of the second connecting rod (18) is fixedly connected with a clamping plate (20), and the outer wall of the clamping plate (20) is slidably connected with a second locking plate (23).

10. A locking device for a clamping mechanism of a rodless tractor according to claim 9, characterized in that: A sliding groove (22) is provided inside the second locking plate (23), and a fixing column (21) is fixedly connected inside the second locking plate (23).

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