CN202177556U

CN202177556U - Composite material structure impact device capable of adjusting impact angles

Info

Publication number: CN202177556U
Application number: CN 201120294695
Authority: CN
Inventors: 熊伟; 杨杰; 李军贵; 刘红霞
Original assignee: Xian Aircraft Design and Research Institute of AVIC
Current assignee: Xian Aircraft Design and Research Institute of AVIC
Priority date: 2011-08-15
Filing date: 2011-08-15
Publication date: 2012-03-28
Anticipated expiration: 2021-08-15

Abstract

The utility model relates to a composite material structure impact device capable of adjusting impact angles, comprising a fixed shaft rotating quality system, a first guide rail, a second guide rail, a first punch and a second punch, wherein the fixed shaft rotating quality system comprises a rotating shaft bracket, a first bracket, a second bracket and an angle adjusting device; the rotating shaft bracket can lead the fixed shaft rotating quality system to rotate; the first bracket and the second bracket are hinged from head to tail; the angle adjusting device can adjust an included angle of the two brackets; a first mass block is fixed on the first bracket, and a second mass block is fixed on the second bracket; and the first guide rail is internally provided with the first punch which can slide along the second guide rail. In the composite material structure impact device, the structure is simple, the operation is convenient, the test accuracy is not lower than that of the existing impact device; the composite material structure impact device can be applied in test pieces with various sizes and shapes adopted in the verification process of the aircraft structures; and the composite material structure impact device utilizes the fixed shaft rotating quality system, converts the vertical impact energy into the impact energy at the needed angle, and is applicable to impacting the impacted surfaces at all angles.

Description

A kind of composite structure percussion mechanism of scalable angle of attack

Technical field

The utility model relates to a kind of percussion mechanism, especially composite structure is impacted and the percussion mechanism scalable angle of attack.

Background technology

Compound substance has been widely used in the aeroplane structure design manufacturing because of having excellent properties such as high specific strength and specific modulus.Impact injury is to the most serious type of impairment of composite structure influence, whether satisfies design objective in order to verify the composite structure design, must carry out the impact injury test to structure and threaten with the assessment impact injury.

The percussion mechanism of introducing at present impact injury drops hammer, pendulum, air cannon.Wherein dropping hammer requires to be hit the surface upwards, and pendulum requires to be hit Surface Vertical, and the large-scale composite material complex structure, and after its attitude was fixing, the angles that is hit was various, therefore drops hammer and pendulum is not suitable for the large-scale composite material structural test; If satisfy the angle requirement through adjustment testpieces attitude, clamper for disassembling can prolong the large-scale composite material structural test cycle, easily test specimen is caused damage simultaneously.Air cannon does not receive angle limits, but its device is complicated and receive control, requires performance accuracy very high, has only the professional full-time staff of unit to accomplish.

Summary of the invention

For solve existing percussion mechanism requirement by the angle of shock surface deficiency such as specific and air cannon device complicacy, the utility model provides a kind of percussion mechanism that can adapt to various angle of attack.

The technical scheme that the utility model is taked is: comprise dead axle rotating mass system [1], first guide rail [2], second guide rail [3], first drift [4], second drift [5]; Dead axle rotating mass system [1] comprises the rotary shaft rack [16] that can make its rotation; And hinged first support [11], second support [12] of head and the tail, can adjust the angle regulator [13] of two stands angle; Be fixed with first mass [14] on first support [11], second support [12] is fixed with second mass [15]; Having in first guide rail [2] can be along first drift [4] of first guide rail [2] slip, and having in second guide rail [3] can be along second drift [5] of second guide rail [3] slip.

Further, angle regulator [13] comprises first strut [17] and second strut [18], and second strut [18] one ends and second support [12] are hinged, and the other end is a sliding rail; First strut [17] one ends and first support [11] are hinged, and the other end can be along the sliding rail slippage on second strut [18].

When the surface that is hit [6] have to lower angle; Based on energy conservation and principle of conservation of momentum; Dead axle rotating mass system [1] is delivered to second drift [5] with the kinetic energy of first drift [4], makes second drift [5] can be along second track [3] motion and the vertical impact surface that is hit.When the surface that is hit has to upper angle, only utilize the direction of motion of first guide rail [2] control, first drift [4], first drift [4] is fallen with the vertical impact surface [6] that is hit along first guide rail [2].

The good effect that the utility model produces: this apparatus structure is simple, and is easy to operate, and this device experiment precision is not less than existing percussion mechanism; This device can be applied to the various sizes of aircaft configuration proof procedure employing, the test specimen of shape; This device utilizes dead axle rotating mass system, is the impact energy of required angle with the vertical impact Conversion of energy, is applicable to the surface that is hit of impacting various angles.

Description of drawings

Fig. 1 is the composite structure percussion mechanism structural representation of scalable angle of attack;

Fig. 2 is the angle regulator structural representation;

Fig. 3 has composite structure percussion mechanism working state schematic representation when the lower angle for the surface that is hit;

Fig. 4 has composite structure percussion mechanism working state schematic representation when the upper angle for shock surface;

Wherein, 1: dead axle rotating mass system, 2: the first guide rails, 3: the second guide rails; 4: the first drifts, 5: the second drifts, 6: be hit the surface, 11: the first supports; 12: the second supports, 13: angle regulator, 14: the first masses, 15: the second masses; 16: rotary shaft rack, 17: the first struts, 18: the second struts, 19: fastening bolt.

Embodiment

Below in conjunction with Figure of description the utility model is described in further detail.

A kind of composite structure percussion mechanism of scalable angle of attack comprises dead axle rotating mass system 1, first guide rail 2, second guide rail 3, first drift 4, second drift 5; Dead axle rotating mass system 1 comprises the rotary shaft rack 16 that can make its rotation; And hinged first support 11 of head and the tail, second support 12, can adjust the angle regulator 13 of two stands angle; Be fixed with first mass, 14, the second supports 12 on first support 11 and be fixed with second mass 15; Have in first guide rail 2 and have second drift 5 that can slide along second guide rail 3 in first drift, 4, the second guide rails 3 that can slide along first guide rail 2.

Confirm the quality of second drift 5 according to the test demand; Calculate the quality and first drift, the 4 whereabouts desired heights of required first drift 4, first mass 14, second mass 15 according to kinetic energy, principle of conservation of momentum.

When being hit surface 6 down, regulate the angle of second track 3, make second track 3 perpendicular to the surface 6 that is hit; Second drift 5 is placed into second track, 3 bottoms; The relative position of the adjustment dead axle rotating mass system 1 and second track 3 makes second drift 5 contact with second mass 15, and second support 12 is perpendicular to the axis of second track 3 simultaneously; Adjustment angle regulator 13 makes first support, 11 levels, and first drift 4 is put into first guide rail, 2 bottoms; First drift 4 and first guide rail 2 are put into first mass, 14 tops, first mass 14 is contacted with first drift 4, while first track 2 is perpendicular to first support 11, and is as shown in Figure 3.The work beginning; Discharge after first drift 4 is raised to desired height; First drift, 4 edges, first track 2 moves and impacts first mass 14; Dead axle rotating mass system 1 fulcrum of support 16 around the shaft rotates, and second mass, 15 impacts, second drift, 5, the second drifts 5 move along second track 3 and impact the surface 6 that is hit.

When being hit surface 6 up, only use first track 2 and first drift 4 to accomplish impact process: the quality of confirming first drift 4 according to the test demand; Calculate the height of required first drift 4 according to kinetic energy, principle of conservation of momentum.Make first track 2 perpendicular to the surface 6 that is hit, first drift 4 is placed in first track 2 discharges behind the desired heights, first drift 4 is along 2 times drop impacts of first tracks surface 6 that is hit, and is as shown in Figure 4.

Angle regulator 13 is installed on the angle that distance between first support 11 and second support, 12 pin joints is adjusted first support 11 and second support 12 through adjusting this.Said angle regulator 13 comprises that first strut 17 and second strut 18, the second struts, 18 1 ends and second support 12 are hinged, and the other end is a sliding rail; First strut, 17 1 ends and first support 11 are hinged; The other end can be along the sliding rail slippage on second strut 18; After first strut 17 and second strut 18 reach required relative position, use fastening bolt 19 can fix the position of first strut 17 in word second strut 18 sliding rails.

This apparatus structure is simple, and is easy to operate, and this device experiment precision is not less than existing percussion mechanism; This device can be applied to the various sizes of composite structure proof procedure employing, the test specimen of shape; This device utilizes dead axle rotating mass system, is the impact energy of required angle with the vertical impact Conversion of energy, is applicable to the surface that is hit of impacting various angles.

Claims

1. the composite structure percussion mechanism of a scalable angle of attack comprises dead axle rotating mass system [1], first guide rail [2], second guide rail [3], first drift [4], second drift [5]; Dead axle rotating mass system [1] comprises the rotary shaft rack [16] that can make its rotation; And hinged first support [11], second support [12] of head and the tail, can adjust the angle regulator [13] of two stands angle; Be fixed with first mass [14] on first support [11], second support [12] is fixed with second mass [15]; Having in first guide rail [2] can be along first drift [4] of first guide rail [2] slip, and having in second guide rail [3] can be along second drift [5] of second guide rail [3] slip.

2. the composite structure percussion mechanism of scalable angle of attack according to claim 1; It is characterized in that: angle regulator [13] comprises first strut [17] and second strut [18]; Second strut [18] one ends and second support [12] are hinged, and the other end is a sliding rail; First strut [17] one ends and first support [11] are hinged, and the other end can be along the sliding rail slippage on second strut [18].