Rudder spreading test device

Abstract

The invention discloses a rudder spreading test device which comprises a fixing block (1), a pull rope (2), a pressing block (3), a supporting rod (4), a bottom plate (6), a support (7), a steering engine room (8) and a pin pusher simulation combination module (9). A plurality of supports (7) are arranged on the outer side of the lower surface of the bottom plate (6), a steering engine room (8) and a pin pusher simulation combination module (9) are fixed to the center of the lower surface of the bottom plate (6), and the pin pusher simulation combination module (9) is located in the center of the steering engine room (8); one end of the supporting rod (4) is fixed to the outer side of the upper surface of the bottom plate (6), and the other end of the supporting rod (4) is connected with the lower surface of the fixing block (1). The pull rope (2) is fixed in the center of the lower surface of the fixing block (1), and the pressing block (3) is arranged at the lower end of the pull rope (2).

Description

Technical Field

[0001] The invention relates to the technical field of equipment control, and in particular to a rudder exhibition test device. Background Art

[0002] For smart ammunition that uses air rudders as actuators and barrel / box-type launch methods, the rudder blades are folded in the initial service state. After the launch ignition and exiting the barrel, the rudder blades are deployed and locked under the action of the sales promoter. The deployment time and consistency of the rudder blades are related to the launch control accuracy and flight stability of the smart ammunition. Therefore, during the initial prototype development stage, designers often use sales promoters with pyrotechnics to conduct multiple rounds of rudder display tests to verify whether the designed actuator meets the requirements of combat technical indicators.

[0003] However, the pyrotechnics used in existing rudder exhibition test equipment are hazardous chemicals that endanger personal and property safety. It is required that pyrotechnic-related tests must be carried out by professionals in professional sites, which puts stringent management requirements on the rudder exhibition test site and testers. On the other hand, pyrotechnics are non-reusable resources, and multiple rounds of rudder exhibition test tests impose cost requirements on the development cost.

[0004] Therefore, it is necessary to provide a safe, efficient, low-cost and reusable rudder exhibition test device to replace the pyrotechnic salesman in the early stage of design verification to solve the problems in the prior art. Summary of the invention

[0005] In view of the technical problems in the prior art that the pyrotechnic test of a rudder exhibition test device has low safety and high cost, the present invention proposes a rudder exhibition test device.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A rudder exhibition test device comprises a fixing block 1, a pull rope 2, a pressing block 3, a support rod 4, a bottom plate 6, a support 7, a steering gear cabin 8, and a sales pitcher simulation combination module 9;

[0008] A plurality of supports 7 are arranged on the outer side of the lower surface of the bottom plate 6, a steering gear cabin 8 and a sales promoter simulation combination module 9 are fixed at the center of the lower surface of the bottom plate 6, and the sales promoter simulation combination module 9 is located at the center of the steering gear cabin 8;

[0009] One end of the support rod 4 is fixed to the outer side of the upper surface of the base plate 6, and the other end of the support rod 4 is connected to the lower surface of the fixed block 1; a pull rope 2 is fixed at the center of the lower surface of the fixed block 1, and a pressure block 3 is provided at the lower end of the pull rope 2.

[0010] Preferably, it further comprises a support ear 5 ; one end of the support rod 4 is fixed to the outer side of the upper surface of the bottom plate 6 through the support ear 5 .

[0011] Preferably, a threaded hole is provided on the lower surface of the fixing block 1 for connecting with the other end of the supporting rod 4 .

[0012] Preferably, the sales promotion device simulation assembly module 9 includes a sales promotion device simulation component 91, a compression spring 92, and a compression spring support seat 93;

[0013] A compression spring 92 is fixed to the bottom of the compression spring support seat 93, and the top of the compression spring support seat 93 is fixed to the lower surface of the bottom plate 6;

[0014] The sales pusher simulation member 91 is T-shaped, and the lower end of the sales pusher simulation member 91 passes through the bottom of the compression spring support seat 93 and is connected to the sales pusher rod 86 of the steering gear cabin 8.

[0015] Preferably, the upper end of the sales promoter simulation member 91 protrudes from the upper surface of the base plate 6 by a distance x.

[0016] Preferably, the steering gear cabin 8 includes a cabin support 81, a steering gear 82, a steering blade 83, a steering gear cabin housing 84, a locking nut 85, and a push rod 86;

[0017] The steering gear cabin shell 84 is fixed to the lower surface of the base plate 6 through the cabin section support seat 81, and the steering gear 82 is fixed circumferentially inside. The steering gear 82 is connected to one end of the steering blade 83, and the other end of the steering blade 83 is connected to the locking nut 85. The locking nut 85 is fixed to the bottom end of the push rod 86 through threads.

[0018] Preferably, the diameter of the sales promotion device simulation member 91 is:

[0019] d3=d2-d1+5mm(1)

[0020] In formula (1), d3 represents the diameter of the sales promotion device simulation part 91; d2 represents the outer diameter of the compression spring 92; and d1 represents the diameter of the compression spring 92.

[0021] Preferably, the mass of the sales promotion device simulation part 91 is:

[0022] m1=k△x / g(2)

[0023] In formula (2), m1 represents the mass of the sales pitch simulation part 91; k represents the stiffness coefficient of the compression spring 92; g represents the acceleration of gravity; △x represents the initial pre-compression length of the compression spring 92.

[0024] Preferably, the length of the sales promotion device simulation member 91 is:

[0025] L1=x1+x+△x;(3)

[0026] In formula (3), L1 represents the length of the sales promotion device simulation part 91; x1 represents the distance between the bottom of the push rod 86 and the upper surface of the base plate 6; x represents the working stroke of the sales promotion device; △x represents the initial pre-compression length of the compression spring 92.

[0027] Preferably, the method for determining the hanging height of the pull rope 2 and the mass of the pressing block 3 is:

[0028]

[0029] In formula (4), m represents the mass of the pressure block 3; F represents the thrust value within the stroke range; k represents the stiffness coefficient of the compression spring 92; x represents the working stroke of the salesman; m1 represents the mass of the salesman simulation part 91; g represents the gravitational acceleration; Δt represents the action time between the pressure block 3 and the sales simulation part 91; h represents the hanging height of the pull rope; and v represents the speed when the pressure block 3 contacts the sales simulation part 91.

[0030] In summary, due to the adoption of the above technical solution, compared with the prior art, the present invention has at least the following beneficial effects:

[0031] The device of the present invention can achieve the needs of fixing and unfolding the rudder blade through the cooperation of the rudder cabin and the sales pitcher simulation combination module, without the need for pyrotechnics, thus improving safety, and at the same time can be used repeatedly, reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of a rudder exhibition test device according to an exemplary embodiment of the present invention.

[0033] Figure 2 It is a schematic diagram of the structure of a simulated combined module of a steering gear cabin and a sales pitcher according to an exemplary embodiment of the present invention.

[0034] Figure 3 The figure is a schematic diagram of the design principle of a rudder exhibition test device according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following examples, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0036] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] like Figure 1 As shown, the present invention provides a rudder exhibition test device, including a fixing block 1, a pull rope 2 (such as a nylon rope), a pressure block 3, a support rod 4, a support ear 5, a base plate 6, a support 7, a steering gear cabin 8, and a sales pitcher simulation combination module 9.

[0038] In this embodiment, a plurality of supports 7 are arranged on the outer side of the lower surface of the base plate 6 (for example, a support 7 is respectively arranged at the four corners below the base plate 6). The supports 7 can be adjusted in longitudinal height and transverse width according to the size of the steering gear compartment 8. The specific structure of the supports 7 is the existing technology, for example, a support with threaded or snap-on form that can be adjusted in height can be adopted.

[0039] A steering gear cabin 8 and a sales pitcher simulation combination module 9 are fixed at the center of the lower surface of the base plate 6, and the sales pitcher simulation combination module 9 is located at the center of the steering gear cabin 8; one end (non-threaded end) of a plurality of support rods 4 is obliquely fixed to the outer side of the upper surface of the base plate 6 through corresponding support ears 5 (for example, each corner has a support ear 5, and there are 4 support rods 4); the other ends (threaded ends) of the plurality of support rods 4 are respectively fixedly connected to the lower surface of the fixed block 1 (provided with threaded holes) to form a triangle shape; a nylon rope 2 is fixed to the center of the lower surface of the fixed block 1, and a pressure block 3 is provided at the lower end of the nylon rope 2, that is, the pressure block 3 is suspended above the base plate 6 by the nylon rope 2.

[0040] like Figure 2 As shown, the sales pitcher simulation combination module 9 includes a sales pitcher simulation part 91, a compression spring 92, and a compression spring support seat 93, and the steering gear cabin 8 includes a cabin support seat 81, a steering gear 82, a rudder blade 83, a steering gear cabin housing 84, a locking nut 85, and a push rod 86.

[0041] In this embodiment, the sales pitch simulator 91 is T-shaped, with a compression spring 92 embedded in the upper end. The compression spring support seat 93 is laterally fixed at the center of the lower surface of the base plate 6. The upper end of the sales pitch simulator 91 protrudes from the upper surface of the base plate 6 by a distance x, where x is the actual stroke of the sales pitch simulator. The lower end of the sales pitch simulator 91 is threadedly fixed to the sales pitch rod 86.

[0042] In this embodiment, the structure of the steering gear cabin 8 is bilaterally symmetrical (the push rod 86 is the central axis), so Figure 2The structure on the right side of the middle is used as an example for explanation. The steering gear cabin housing 84 is fixed to the lower surface of the bottom plate 6 through the cabin support seat 81, and the steering gear 82 is fixed circumferentially inside. The steering gear 82 is hingedly connected to the rudder blade 83, and the locking nut 85 is connected to the rudder blade 83 through a slot. The locking nut 85 is fixed to the bottom end of the push rod 86 through a thread, which plays the role of locking the rudder blade 83 before the rudder is extended.

[0043] In this embodiment, Figure 3 As shown, before the test, firstly, according to the mission book and combat technical index requirements, the working stroke x of the sales pitcher and the thrust value F within the stroke range are obtained as the design input of the test device;

[0044] Secondly, carry out detailed design of compression spring to determine the parameters of compression spring 92 such as spring wire diameter d1, outer diameter d2, free length L, effective number of turns n, stiffness coefficient k, etc.

[0045] The detailed design of the sales promotion device simulation part is carried out again to determine the total length L1, mass m1, and diameter d3 of the sales promotion device simulation part 91; the specific method is as follows:

[0046] The diameter of the sales promotion device simulation part 91 is determined by the diameter d1 and the outer diameter d2 of the compression spring 92:

[0047] d3=d2-d1+5mm(1)

[0048] In formula (1), d3 represents the diameter of the sales promotion device simulation part 91; d2 represents the outer diameter of the compression spring 92; d1 represents the diameter of the compression spring 92;

[0049] The mass m1 of the sales promotion device simulation 91 is determined by the stiffness coefficient k of the compression spring 92:

[0050] m1=k△x / g(2)

[0051] In formula (2), m1 represents the mass of the sales pitch simulation part 91; k represents the stiffness coefficient of the compression spring 92; g represents the acceleration of gravity; △x represents the initial pre-compression length of the compression spring 92.

[0052] The length of the sales promotion device simulation member 91 is determined by the sales promotion device working stroke x and the distance x1 between the bottom of the push rod 86 and the upper surface of the bottom plate:

[0053] L1=x1+x+△x;(3)

[0054] In formula (3), L1 represents the length of the sales promotion device simulation part 91; x1 represents the distance between the bottom of the push rod 86 and the upper surface of the base plate 6, which can be measured; and x represents the working stroke of the sales promotion device.

[0055] Finally, determine the mass m of the briquette and the nylon rope hanging height h. The specific method is:

[0056] According to the law of energy conservation mgh = 0.5mv 2 , and the impulse theorem (F-kx+m1g)△t=mv, where △t can be obtained through a high-speed camera, and its empirical value is usually 0.02s, which can be used to obtain the mass m of the briquette and the nylon rope hanging height h, and then select the briquette material to obtain a briquette volume of a relatively easy-to-operate size:

[0057]

[0058] In formula (4), m represents the mass of the pressure block 3; F represents the thrust value within the travel range, which can be obtained according to the mission book and combat technical index requirements; k represents the stiffness coefficient of the compression spring 92; x represents the working travel of the sales promotion device, which can be obtained according to the mission book and combat technical index requirements; m1 represents the mass of the sales promotion device simulation part 91; g represents the gravitational acceleration; Δt represents the action time of the pressure block 3 and the sales promotion period simulation part 91; it can be obtained through a high-speed camera, and its empirical value is usually 0.02s; h represents the nylon rope hanging height; v represents the speed of the pressure block 3 and the sales promotion period simulation part 91 when they interact.

[0059] During the test, first follow Figure 1 The test device is assembled and the rudder blade 83 is in a locked state before deployment; a high-speed camera is set next to the steering gear cabin 8 to completely capture the entire deployment process of the rudder blade 83; the nylon rope 2 is cut, and the pressure block 3 falls under the action of gravity and acts on the sales promotion simulation part 91. After the sales promotion simulation part 91 is subjected to the force, it drives the push rod 86 and the locking nut 85 to move downward, thereby releasing the constraint on the rudder blade 83. At the same time, the inclined surface of the push rod 86 applies a downward thrust to the rudder blade 83, and combined with the elastic force of the steering gear folding mechanism acting on the tiller handle, the two cooperate with each other to complete the deployment and locking of the rudder blade.

[0060] After the test, the deployment time and consistency of the rudder blade 83 are observed through high-speed photography to determine whether the technical index requirements are met. If the test results deviate from the target, the designed parameters can be further optimized, and this process can be repeated and verified multiple times through the test device until the requirements are met.

[0061] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A rudder exhibition test device, characterized in that: It comprises a fixing block (1), a pull rope (2), a pressing block (3), a supporting rod (4), a bottom plate (6), a support (7), a steering gear cabin (8), and a sales pitcher simulation combination module (9); A plurality of supports (7) are arranged on the outer side of the lower surface of the bottom plate (6); a steering gear cabin (8) and a sales pitcher simulation combination module (9) are fixed at the center of the lower surface of the bottom plate (6); the sales pitcher simulation combination module (9) is located at the center of the steering gear cabin (8); One end of the support rod (4) is fixed to the outer side of the upper surface of the base plate (6), and the other end of the support rod (4) is connected to the lower surface of the fixed block (1); a pull rope (2) is fixed at the center of the lower surface of the fixed block (1), and a pressure block (3) is provided at the lower end of the pull rope (2).

2. A rudder exhibition test device as claimed in claim 1, characterized in that: It also includes a support ear (5); one end of the support rod (4) is fixed to the outer side of the upper surface of the bottom plate (6) through the support ear (5).

3. A rudder exhibition test device as claimed in claim 1, characterized in that: The lower surface of the fixing block (1) is provided with a threaded hole for connecting with the other end of the support rod (4).

4. A rudder exhibition test device as claimed in claim 1, characterized in that: The sales promotion device simulation assembly module (9) comprises a sales promotion device simulation component (91), a compression spring (92), and a compression spring support seat (93); A compression spring (92) is fixed to the bottom of the compression spring support seat (93), and the top of the compression spring support seat (93) is fixed to the lower surface of the bottom plate (6); The pusher simulation part (91) is T-shaped, and the lower end of the pusher simulation part (91) passes through the bottom of the compression spring support seat (93) and is connected to the pusher rod (86) of the steering gear cabin (8).

5. A rudder exhibition test device as claimed in claim 4, characterized in that: The upper end of the sales promotion device simulation part (91) protrudes from the upper surface of the bottom plate (6) by a distance x.

6. A rudder exhibition test device as claimed in claim 1, characterized in that: The steering gear cabin (8) comprises a cabin section support seat (81), a steering gear (82), a steering blade (83), a steering gear cabin housing (84), a locking nut (85), and a push rod (86); The steering gear cabin housing (84) is fixed to the lower surface of the bottom plate (6) through a cabin section support seat (81), and a steering gear (82) is fixed circumferentially inside. The steering gear (82) is connected to one end of a steering blade (83), and the other end of the steering blade (83) is connected to a locking nut (85). The locking nut (85) is fixed to the bottom end of a push rod (86) through a thread.

7. A rudder exhibition test device as claimed in claim 4, characterized in that: The diameter of the sales promotion device simulation part (91) is: d3=d2-d1+5mm (1) In formula (1), d3 represents the diameter of the sales promotion device simulation part (91); d2 represents the outer diameter of the compression spring (92); and d1 represents the diameter of the compression spring (92).

8. A rudder exhibition test device as claimed in claim 4, characterized in that: The mass of the sales promotion device simulation part (91) is: m1=k△x / g (2) In formula (2), m1 represents the mass of the sales promotion device simulation part (91); k represents the stiffness coefficient of the compression spring (92); g represents the acceleration due to gravity; △x represents the initial pre-compression length of the compression spring (92).

9. A rudder exhibition test device as claimed in claim 4, characterized in that: The length of the sales promotion device simulation member (91) is: L1=x1+x+△x; (3) In formula (3), L1 represents the length of the sales promotion device simulation part (91); x1 represents the distance between the bottom of the push rod (86) and the upper surface of the base plate (6); x represents the working stroke of the sales promotion device; △x represents the initial pre-compression length of the compression spring (92).

10. A rudder exhibition test device as claimed in claim 1, characterized in that: The method for determining the hanging height of the pull rope (2) and the mass of the pressing block (3) is as follows: In formula (4), m represents the mass of the pressure block (3); F represents the thrust value within the stroke range; k represents the stiffness coefficient of the compression spring (92); x represents the working stroke of the sales promotion device; m1 represents the mass of the sales promotion device simulation component (91); g represents the gravitational acceleration; Δt represents the action time between the pressure block (3) and the sales promotion period simulation component (91); h represents the hanging height of the pull rope; and v represents the speed when the pressure block (3) contacts the sales promotion period simulation component (91).

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