Self-adaptive jacking head device of airplane jack

Abstract

The utility model discloses an aircraft jack self-adaptive plug device which comprises a plug seat and a plug, the plug is connected to the middle of the upper end of the plug seat in a centering and pluggable mode, a positioning bead is arranged at the bottom of the middle of the plug and connected to the center of the plug seat in a pluggable mode, and a gland is connected to the plug seat in a pluggable mode. The top in the gland is pressed on the upper end face of the top side, a return spring is arranged between the top base and the top, a three-dimensional force sensor is arranged at the bottom of the top base, a laser sight is arranged in the top, and the top base and the gland are fixedly connected through a countersunk bolt. An arc-shaped groove matched with the positioning ball is formed in the center of the top of the ejector head base, the section of the ejector head is in a T shape, a through opening is formed in the center of the ejector head, and the ejector head and the laser sight are coaxially arranged. The utility model belongs to the technical field of mechanical engineering, and particularly relates to a self-adaptive jacking head device of an airplane jack.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical engineering, and in particular relates to an adaptive jacking device for an aircraft jack. Background Art

[0002] Aircraft jacks are essential equipment for lifting aircraft during aircraft maintenance work. They mainly include support legs, jacking heads and other structures. Among them, the jacking head is directly used to lift the aircraft, and the safety requirements of the equipment are very high. The existing aircraft jack jacks are mostly cylindrical with a single structure. When in use, they mainly rely on manual observation to position and align them with the aircraft's jack socket. Not only is the accuracy low, but the operation is also complicated and inconvenient, resulting in low maintenance efficiency. In particular, when in use, it is impossible to intuitively view the aircraft weight value and the real-time pressure value of the jacking head, and the practicality is low. To this end, we propose an aircraft jack adaptive jacking head device to solve the above problems. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides an aircraft jack adaptive jacking head device, which effectively solves the problem that the current aircraft jack jacking head has a single structure and function, resulting in complicated operation and inaccurate positioning during use, and solves the problem that parameters such as pressure value and aircraft weight cannot be observed in real time and the practicality is low.

[0004] The technical solution adopted by the present invention is as follows: The present invention proposes an adaptive ram device for an aircraft jack, comprising a ram seat and a ram, wherein the ram is centrally plugged and connected to the middle of the upper end of the ram seat, a positioning bead is provided at the bottom of the middle of the ram, and the positioning bead is plugged and connected to the center of the ram seat, a pressure cover is plugged and connected on the ram seat, and the top inside the pressure cover is pressed onto the upper end surface of the ram side, a return spring is provided between the ram seat and the ram, a three-dimensional force sensor is provided at the bottom of the ram seat, and a laser sight is provided inside the ram.

[0005] As an improvement of this solution, the head seat and the pressure cover are fixedly connected by countersunk bolts, and the center of the top of the head seat is provided with an arc-shaped groove that matches the positioning bead.

[0006] As an improvement of the present solution, the cross section of the plug is T-shaped, a through opening is provided at the center thereof and the plug is coaxially arranged with the laser sight.

[0007] As an improvement of this solution, the outer contour of the top of the mandrel is spherical.

[0008] As an improvement of this solution, a circular through hole is provided in the center of the top of the gland, and the plug passes through the through hole.

[0009] As an improvement of this solution, the head seat, the head and the pressure cover are all made of high-quality aviation low-alloy high-strength steel 30CrMnSiA that has been heat-treated, and the surface is hard chromium plated.

[0010] The beneficial effects achieved by the utility model using the above structure are as follows:

[0011] 1. The laser sight inside the jack head can emit a laser beam to assist the operator in aligning the jack head with the aircraft's jack socket, thereby improving the accuracy and convenience of operation.

[0012] 2. A three-dimensional force sensor is installed to collect the horizontal force components of the jack's X and Y axes in real time, and determine whether the force applied by the aircraft on the jack coincides with the center of the lifting rod, thus preventing the jack from deflecting. The aircraft can also be weighed.

[0013] 3. The main material is made of high-quality aviation low-alloy high-strength steel 30CrMnSiA. After heat treatment, the strength can reach 1180MPa (the strength, toughness and weldability are better than other materials), and the surface is hard chrome plated to enhance its corrosion resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of an aircraft jack adaptive ramming device proposed by the utility model;

[0015] Figure 2 The utility model is a schematic diagram of the internal structure of an adaptive jacking device for an aircraft jack.

[0016] Among them, 1. Plunging head seat; 2. Plunging head; 3. Positioning bead; 4. Pressure cover; 5. Countersunk bolt; 6. Return spring; 7. Three-dimensional force sensor; 8. Laser sight.

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] like Figure 1 and Figure 2As shown, the utility model proposes an adaptive ram device for an aircraft jack, comprising a ram seat 1 and a ram 2, the ram 2 being centrally plugged and connected to the middle of the upper end of the ram seat 1, the outer contour of the top of the ram 2 being spherical, a positioning bead 3 being provided at the bottom in the middle of the ram 2, and the positioning bead 3 being plugged and connected to the center of the ram seat 1, a pressure cover 4 being plugged and connected to the ram seat 1, and the top inside the pressure cover 4 being pressed onto the upper end surface of the ram 2, a return spring 6 being provided between the ram seat 1 and the ram 2, a three-dimensional force sensor 7 being provided at the bottom of the ram seat 1, and a laser sight 8 being provided inside the ram 2.

[0020] The head seat 1 and the pressure cover 4 are fixedly connected by a countersunk bolt 5. A circular through hole is provided in the center of the top of the pressure cover 4, and the head 2 passes through the through hole. An arc groove matching the positioning bead 3 is provided in the center of the top of the head seat 1.

[0021] The cross section of the plug 2 is T-shaped, with a through opening at the center thereof and is coaxially arranged with the laser sight 8 .

[0022] The mandrel seat 1, the mandrel 2 and the gland 4 are all made of high-quality aviation low-alloy high-strength steel 30CrMnSiA that has been heat-treated, and the surface is hard chrome plated.

[0023] During specific use, the positioning bead 3 at the bottom of the jack 2 is used to place the jack 2 in the middle of the upper end of the jack seat 1, and then the pressure cover 4 is inserted onto the pressure cover 4 from above the jack 2, and the countersunk bolt 5 is screwed into the side wall of the pressure cover 4 and fixed between the jack seat 1, and a laser beam is emitted through the laser sight 8 to assist the operator to align the jack 2 with the top socket of the aircraft. In the process of lifting the aircraft, the three-dimensional force sensor 7 is used to collect the real-time three-dimensional pressure value and aircraft weight value of the jack lifting process, and the real-time pressure value and aircraft weight value are fed back to the touch screen display. At the same time, the three-dimensional force sensor 7 can collect the horizontal component force of the X and Y axes of the jack in real time, and judge whether the force exerted by the aircraft on the jack coincides with the center of the lifting rod of the jack through the horizontal component force values ​​of the X and Y axes to prevent the jack from being tilted. The aircraft can also be weighed. The above is the use process of the entire aircraft jack adaptive jack device.

[0024] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. An adaptive jacking device for an aircraft jack, comprising a jack seat (1) and a jack (2), wherein the jack (2) is centrally pluggably connected to the middle of the upper end of the jack seat (1), and is characterized in that: A positioning bead (3) is provided at the bottom of the middle of the mandrel (2), and the positioning bead (3) is plug-in connected to the center of the mandrel seat (1); a pressure cover (4) is plug-in connected to the mandrel seat (1), and the top inside the pressure cover (4) is pressed onto the upper end surface of the mandrel (2); a return spring (6) is provided between the mandrel seat (1) and the mandrel (2); a three-dimensional force sensor (7) is provided at the bottom of the mandrel seat (1), and a laser sight (8) is provided inside the mandrel (2).

2. The aircraft jack adaptive ramming device according to claim 1, characterized in that: The head seat (1) and the pressure cover (4) are fixedly connected by countersunk bolts (5), and the center of the top of the head seat (1) is provided with an arc-shaped groove that matches the positioning bead (3).

3. The adaptive jacking device for aircraft jacks according to claim 2, characterized in that: The cross section of the top head (2) is T-shaped, a through opening is provided at its center and the top head (2) is coaxially arranged with the laser sight (8).

4. The aircraft jack adaptive ramming device according to claim 3, characterized in that: The outer contour of the top of the mandrel (2) is spherical.

5. The adaptive jacking device for aircraft jacks according to claim 4, characterized in that: A circular through hole is provided at the center of the top of the pressure cover (4), and the plug (2) passes through the through hole.

6. The aircraft jack adaptive ramming device according to claim 5, characterized in that: The mandrel seat (1), mandrel (2) and gland (4) are all made of high-quality aviation low-alloy high-strength steel 30CrMnSiA that has been heat-treated, and the surfaces are hard chromium plated.

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