CN112504036A

CN112504036A - Rocket gun locking body locking force detection device

Info

Publication number: CN112504036A
Application number: CN202110105523.2A
Authority: CN
Inventors: 宋翠景; 薛晓杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-03-16
Anticipated expiration: 2041-01-26
Also published as: CN112504036B

Abstract

The invention provides a locking force detection device for a rocket gun locking body, which consists of the following parts: the device comprises an L-shaped lever, a lever shaft, a pressure sensor, a sliding seat, a piston rod, a draw hook, a pressure spring, a shaft, a manual pump, a rear support, a guide rod, a bottom plate, a pressure spring, a pin, a cover plate, a sliding block, a guide rod shaft, a front support, a beam, a swing block, a swing shaft and a handle. In the process of detecting the locking force of the rocket gun locking body, when the locking body is jacked open by the directional button, the locking force can be obtained by measuring the stress of the pressure sensor and considering the ratio of two force arms of the L-shaped lever through conversion. Aiming at the defects of the existing locking force detection equipment, the locking force detection device of the rocket gun locking body adopts a measurement method that the L-shaped lever transmits the locking force to the pressure sensor, so that the error of a hydraulic measurement instrument is avoided; meanwhile, the measuring device is light in weight and convenient to mount and dismount.

Description

Rocket gun locking body locking force detection device

Technical Field

The invention belongs to the technical field of measuring devices, and particularly relates to a locking force detection device for a rocket gun locking body.

Background

The rocket gun locking body (see figure 1) is formed by connecting a pair of spring plates, a lever 1-2 and a bolt, and has the function that when a rocket projectile is loaded into a directional pipe 1-5, a directional button 1-4 on the rocket projectile is clamped in a gap between the locking body and the lever. In the launching process of the rocket projectile, when the thrust of the rocket reaches the locking force value of the locking body, the orientation button opens the locking body, and the rocket projectile is started. The locking force is an important factor affecting the density of the rocket projectile. At present, locking force detection equipment mainly comprises a mechanical type and a hydraulic type, wherein the front part of a mechanical locking force detector is clamped on the front end surface of a directional tube, and a directional button at the rear part of the detector is fixed in a gap between a locking body and a lever. When the rear force measuring nut is rotated, the front part of the detector is fixed, the force measuring nut compresses the spring and applies the pressure of the spring to the locking body through the directional button, when the spring force reaches the locking force, the directional button is separated from the locking body, and at the moment, the position of the force measuring nut on the pull rod (the pull rod is provided with scales) is checked, so that the size of the locking force can be judged. Finally, the detector is removed from the front of the orienting tube. The equipment is heavy and time-consuming and labor-consuming to operate; the measuring accuracy of the method is not high because the friction force of the force measuring nut is large and the spring stiffness deviation exists during operation.

Fig. 2 shows a hydraulic latching force detection apparatus. After the device is pushed in from the rear part of the orientation tube, the orientation button of the device is fixed in a gap between the locking body 1-1 and the lever 1-2, and the tail hook 6 of the device hooks the bayonet 1-3 at the rear part of the orientation tube. The rear part of the equipment is provided with a hydraulic cylinder, and a lever with a directional button is fixed at the front end of a piston rod 5 in the hydraulic cylinder through a shaft 2; when the liquid injection pump is used for injecting liquid into the hydraulic cylinder from the joint, the piston rod moves forwards to jack the locking body through the directional button, and the locking force can be converted by measuring the pressure in the hydraulic cylinder. The directional button is positioned in front of the locking body 1, the piston rod moves backwards under the action of a return spring after the measurement is finished, and liquid in the hydraulic cylinder flows back to the liquid injection pump; at the same time, the lever will rotate around its axis due to the blocking body obstruction and cause the orientation knob to slide off the blocking body. The detection equipment is difficult to install, a manual pump is required to be used for matching work, the operation efficiency is low, and the whole volume and the weight of the system are large.

The hydraulic locking force detection device has a large error due to: 1) the hydraulic cylinders are internally provided with return springs, and the return springs push the pistons of the fixed directional buttons to return to the initial positions after detection is finished, so that the measured locking force comprises the spring force in the detection equipment; 2) because of the friction force of the sealing ring in the hydraulic cylinder, the measured locking force is larger than the actual pushing force of the directional button.

The existing locking force detection equipment generally has the problems of low operation efficiency, large volume and weight, large measurement error and the like.

Disclosure of Invention

The invention aims to provide a locking force detection device for a rocket gun locking body, which adopts a measurement method of transmitting locking force to a pressure sensor by an L-shaped lever, thereby avoiding the error of a hydraulic measurement instrument; meanwhile, the measuring device is light in weight and convenient to mount and dismount.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a rocket launcher locking body locking force detection device is characterized by comprising: the device comprises an L-shaped lever 1, a lever shaft 2, a pressure sensor 3, a sliding seat 4, a piston rod 5, a rear support 10, a guide rod 11, a pressure spring 13, a sliding block 16 and a swinging shaft 21; the rear part of the guide rod 11 is screwed on the rear support 10, the front part of the guide rod 11 is arranged on a sliding block 16, the sliding block 16 is positioned in a sliding groove of the front support 18, and a pressure spring 13 is pressed below the sliding block 16; the L-shaped lever 1 and the pressure sensor 3 are both fixedly arranged on the sliding seat 4, a lever shaft 2 is arranged at the joint of the long arm and the short arm of the L-shaped lever, and the L-shaped lever can rotate around the lever shaft 2; the end part of the short arm of the L-shaped lever 1 protrudes upwards to be used as a directional button, the end part of the long arm protrudes downwards to be used as a cylindrical pin, the pressure sensor 3 is correspondingly provided with a pin hole for installing the cylindrical pin, the cylindrical pin is rigidly connected with the pin hole, and when the L-shaped lever rotates anticlockwise around a lever shaft, the cylindrical pin can be separated from the pin hole; the bottom of the sliding seat 4 is sleeved on the guide rod 11, and the rear part of the sliding seat is connected with the piston rod 5; the rear support 10 is mounted on a pivot axle 21, and the rear support 10, the link 11 and the slide 4 as a whole are pivotable about the pivot axle 21.

Preferably, the upper part of the rear support 10 is provided with a draw hook 6 through a shaft 8, and the draw hook 6 rotates around the shaft 8 to enable the hook part to be clamped on the bayonet 1-3 at the rear part of the directional pipe 1-5.

Preferably, the front part of the guide rod 11 is arranged on the sliding block 16 through a groove, a guide rod shaft 17 and a cover plate 15, and the guide rod shaft is fixedly arranged on the sliding block through the cover plate.

Preferably, the slot for installing the guide rod shaft 17 at the end of the guide rod 11 is a long hole, so as to compensate the axial displacement of the guide rod shaft 17 relative to the guide rod 11 when the guide rod rotates around the swinging shaft 21.

Preferably, the rear support 10 is connected to a swing block 20 through a swing shaft 21, and the swing block 20 and the side sills 19 are fixed by screws.

Preferably, the front support 18 is fixed to the two side beams 19 by screws, and the other ends of the two side beams 19 are fixedly connected with handles 22.

Preferably, the compression spring 13 has a lower rigidity than the lever 1-2.

Preferably, the piston rod is sleeved with a compression spring 7, the manual pump is connected to the rear support 10 through threads, and the compression spring 7 presses the piston backwards and drives the sliding seat 4 to return along the guide rod 11 after the manual pump is unloaded.

Preferably, the manual pump is replaced by an electric pump.

Preferably, the upper part of the sliding block 16 is clamped in the front support 18 through the pin 14, and the lower part of the pressure spring 13 is provided with the bottom plate 12.

The invention has the beneficial effects that:

the invention provides a locking force detection device of a rocket gun locking body, which aims at the defects of the existing locking force detection equipment and is mainly characterized in that:

1. the measuring method of transmitting the locking force to the pressure sensor by the L-shaped lever 1 is adopted, so that the error of a hydraulic measuring instrument is avoided.

2. The pump of the manual crimping pliers or the electric crimping pliers is used as a power source, so that the volume is small, the weight is light, and the operation efficiency is high.

Drawings

The drawings of the present invention are provided for illustrative purposes only, and the proportions of the respective parts in the drawings are not necessarily in accordance with actual products.

FIG. 1 is a schematic view of a rocket gun locking body;

fig. 2 is a schematic structural view of a hydraulic latching force detecting apparatus;

FIG. 3 is a front view of the locking force detecting device of the rocket gun locking body of the present invention;

FIG. 4 is a bottom view of the locking force detecting device of the rocket gun locking body of the present invention;

FIG. 5 is a schematic view of the front end of the guide bar and the slider mounting structure;

in the figure: 1. an L-shaped lever; 2. a lever shaft; 3. a pressure sensor; 4. a slide seat, 5, a piston rod; 6. pulling a hook; 7. a pressure spring; 8. a shaft; 9. a manual pump; 10. a rear support; 11. a guide bar; 12. a base plate; 13. a pressure spring; 14. a pin; 15. a cover plate; 16. a slider; 17. a guide rod shaft; 18. a front support; 19. a beam; 20. a swing block; 21. a swing shaft; 22. a handle; 1-1, a locking body; 1-2, a lever; 1-3, bayonet; 1-4, an orientation button; 1-5, orienting tube.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

The invention provides a locking force detection device for a rocket gun locking body, which comprises the following parts as shown in figures 3-5: 1. an L-shaped lever; 2. a lever shaft; 3. a pressure sensor; 4. a slide seat, 5, a piston rod; 6. pulling a hook; 7. a pressure spring; 8. a shaft; 9. a manual pump; 10. a rear support; 11. a guide bar; 12. a base plate; 13. a pressure spring; 14. a pin; 15. a cover plate; 16. a slider; 17. a guide rod shaft; 18. a front support; 19. a beam; 20. a swing block; 21. a swing shaft; 22. and (4) carrying out handle.

The invention relates to a locking force detection device of a rocket gun locking body, which has the following structure:

1) the manual pump 9 (or the electric pump) is connected on the rear support 10 through screw threads, the rear part of the guide rod 11 is screwed on the rear support 10, the front part is installed on the sliding block 16 through a long hole, a guide rod shaft 17 and a cover plate 15, the sliding block 16 is positioned in a sliding groove in the front support 18, a pressure spring 13 is pressed below the sliding block, and the upper part of the sliding block is clamped in the front support 18 through a pin 14.

2) The lever 1 and the pressure sensor 3 are arranged on the sliding seat 4, the lever 1 can rotate around the shaft 2, and the tension spring is arranged below the lever 1 for fixing. The slide 4 is sleeved on the guide rod 11, and the rear part of the slide 4 is connected with a piston rod of the pump. When the pump works, the piston rod pushes the sliding seat 4 forwards to move along the guide rod 11; when the pump is unloaded, the pressure spring 7 sleeved on the piston rod presses the piston backwards and brings the sliding seat 4 to return along the guide rod 11.

3) The front support 18 is fixed to the side members 19 by screws, the rear support 10 is connected to the swing block 20 by a swing shaft 21, and the swing block 20 is fixed to the side members 19 by screws. Therefore, the rear support 10, the pump 9, the guide rod 11 and the slide 4 rotate around the swing shaft 21 as a whole, during the rotation, the slider 16 moves in the sliding groove in the front support 18, and in order to compensate the axial displacement of the guide rod shaft 17 relative to the guide rod 11 during the rotation around the swing shaft 21, the groove of the guide rod shaft 17 in the guide rod 11 is made into a long hole. The reason for this design is that when the operator holds the handle 22 to push the device into the orienting tube, the L-shaped lever 1 will come into contact with the lever 1-2 (see fig. 1), and when the lever is bent upwards, the device will move forward, and when the orienting button is disengaged from the lever springs back, and the detection device is in its correct mounting position. The lever is made of hard materials, so that the process of installing the detection equipment is very laborious. In the design, the rigidity of the compression spring 13 is smaller than that of the lever, so that in the process of installing the detection equipment, the lever provides downward acting force for the directional button, the rotary part rotates around the swing shaft 21, and the compression spring 13 is compressed, so that the directional button of the detection equipment can be fixed in a gap between the locking body and the lever by smaller thrust.

4) When the orientation button of the detection equipment is fixed in a gap between the locking body and the lever 1-2, the rear short rod of the draw hook 6 is pressed, the draw hook rotates around the shaft 8 to enable the hook part of the draw hook to be clamped on a bayonet (shown as 1-3 in figure 1) at the rear part of the orientation tube, and the installation of the detection equipment is completed.

5) In the detection process, the pump 9 is operated (the electric pump of the electric hydraulic pliers can be replaced) to enable the piston rod 5 to push the sliding seat 4 to move forwards, the L-shaped lever 1 on the sliding seat 4 moves forwards, so that the orientation button is contacted with the contact surface of the locking body and then extruded, meanwhile, the orientation button is subjected to backward acting force, and the draw hook 6 is clamped on the orientation pipe (the same as the drawing 2) to restrain the detection equipment so that the detection equipment cannot move backwards. Thus, there is only forward movement of the orienting button relative to the orienting tube. When the locking body is pushed open by the directional button, the locking force can be obtained by measuring the stress of the pressure sensor and considering the ratio of two force arms of the L-shaped lever through conversion. The directional button is positioned in front of the locking body, the piston rod 5 and the sliding seat 4 move backwards under the action of the pressure spring 7 after the measurement is finished, and the L-shaped lever rotates around the shaft of the L-shaped lever due to the obstruction of the locking body 1 and slides away from the locking body.

Example one

A locking force detection device for a rocket gun locking body mainly comprises: the device comprises an L-shaped lever 1, a lever shaft 2, a pressure sensor 3, a sliding seat 4, a piston rod 5, a rear support 10, a guide rod 11, a pressure spring 13, a sliding block 16 and a swinging shaft 21; the rear part of the guide rod 11 is screwed on the rear support 10, the front part of the guide rod 11 is arranged on a sliding block 16, the sliding block 16 is positioned in a sliding groove of the front support 18, and a pressure spring 13 is pressed below the sliding block 16; the L-shaped lever 1 and the pressure sensor 3 are both fixedly arranged on the sliding seat 4, a lever shaft 2 is arranged at the joint of the long arm and the short arm of the L-shaped lever, and the L-shaped lever can rotate around the lever shaft 2; the end part of the short arm of the L-shaped lever 1 protrudes upwards to be used as a directional button, the end part of the long arm protrudes downwards to be used as a cylindrical pin, the pressure sensor 3 is correspondingly provided with a pin hole for installing the cylindrical pin, the cylindrical pin is rigidly connected with the pin hole, and when the L-shaped lever rotates anticlockwise around a lever shaft, the cylindrical pin can be separated from the pin hole; the bottom of the sliding seat 4 is sleeved on the guide rod 11, and the rear part of the sliding seat 4 is connected with the piston rod 5; the rear support 10 is mounted on a pivot axle 21, and the rear support 10, the link 11 and the slide 4 as a whole are pivotable about the pivot axle 21.

Example two

A rocket gun locking body locking force detection device is characterized in that on the basis of the first embodiment, a drag hook 6 is arranged on the upper portion of a rear support 10 through a shaft 8, and the drag hook 6 rotates around the shaft 8 to enable a hook portion of the drag hook to be clamped on bayonets 1-3 in the rear portion of a directional tube 1-5; the front part of the guide rod 11 is arranged on a sliding block 16 through a long hole, a guide rod shaft 17 and a cover plate 15, and the guide rod shaft is fixedly arranged on the sliding block through the cover plate; the groove for installing the guide rod shaft 17 at the end part of the guide rod 11 is a long hole so as to compensate the axial displacement of the guide rod shaft 17 relative to the guide rod 11 when the guide rod rotates around the swinging shaft 21; the rigidity of the pressure spring 13 is smaller than that of the lever 1-2.

EXAMPLE III

A rocket gun locking body locking force detection device is characterized in that on the basis of the first embodiment, a rear support 10 is connected with a swinging block 20 through a swinging shaft 21, and the swinging block 20 and two side beams 19 are fixed through screws; the front support 18 is fixed with the two side beams 19 through screws, and the other ends of the two side beams 19 are fixedly connected with handles 22; a pressure spring 7 is sleeved on the piston rod, a manual pump or an electric pump is connected to the rear support 10 through threads, and the pressure spring 7 presses the piston backwards after the manual pump or the electric pump unloads the piston and drives the sliding seat 4 to return along the guide rod 11; the upper part of the sliding block 16 is clamped in the front support 18 through the pin 14, and the lower part of the pressure spring 13 is provided with the bottom plate 12.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A rocket launcher locking body locking force detection device is characterized by comprising: the device comprises an L-shaped lever (1), a lever shaft (2), a pressure sensor (3), a sliding seat (4), a piston rod (5), a rear support (10), a guide rod (11), a pressure spring (13), a sliding block (16) and a swinging shaft (21); the rear part of the guide rod (11) is screwed on the rear support (10), the front part of the guide rod (11) is arranged on a sliding block (16), the sliding block (16) is positioned in a sliding groove of the front support (18), and a pressure spring (13) is pushed below the sliding block (16); the L-shaped lever (1) and the pressure sensor (3) are both fixedly arranged on the sliding seat (4), a lever shaft (2) is arranged at the joint of the long arm and the short arm of the L-shaped lever, and the L-shaped lever can rotate around the lever shaft (2); the end part of the short arm of the L-shaped lever (1) protrudes upwards to be used as a directional button, the end part of the long arm protrudes downwards to be used as a cylindrical pin, the pressure sensor (3) is correspondingly provided with a pin hole for installing the cylindrical pin, the cylindrical pin is rigidly connected with the pin hole, and when the L-shaped lever rotates anticlockwise around a lever shaft, the cylindrical pin can be separated from the pin hole; the bottom of the sliding seat (4) is sleeved on the guide rod (11), and the rear part of the sliding seat is connected with the piston rod (5); the rear support (10) is arranged on the swinging shaft (21), and the rear support (10), the guide rod (11) and the sliding seat (4) can rotate around the swinging shaft (21) as an integral rotating part.

2. A rocket launcher locking body locking force detection device according to claim 1, wherein: the upper part of the rear support (10) is provided with a draw hook (6) through a shaft (8), and the draw hook (6) rotates around the shaft (8) to enable the hook part to be clamped on the bayonet (1-3) at the rear part of the directional pipe (1-5).

3. The rocket launcher locking body locking force detection device according to claim 1 or 2, wherein: the front part of the guide rod (11) is arranged on a sliding block (16) through a groove, a guide rod shaft (17) and a cover plate (15), and the guide rod shaft is fixedly arranged on the sliding block through the cover plate.

4. A rocket launcher locking body locking force detection device according to claim 3, wherein: the groove for installing the guide rod shaft (17) at the end part of the guide rod (11) is a long hole so as to compensate the axial displacement of the guide rod shaft (17) relative to the guide rod (11) when the guide rod rotates around the swinging shaft (21).

5. The rocket launcher locking body locking force detection device according to claim 1 or 2, wherein: the rear support (10) is connected with a swinging block (20) through a swinging shaft (21), and the swinging block (20) and the two side beams (19) are fixed through screws.

6. The rocket launcher locking body locking force detection device according to claim 1 or 2, wherein: the front support (18) is fixed with the two side beams (19) through screws, and the other ends of the two side beams (19) are fixedly connected with handles (22).

7. The rocket launcher locking body locking force detection device according to claim 1 or 2, wherein: the rigidity of the pressure spring (13) is lower than that of the lever (1-2).

8. The rocket launcher locking body locking force detection device according to claim 1 or 2, wherein: the piston rod is sleeved with a pressure spring (7), the manual pump is connected to the rear support (10) through threads, and the pressure spring (7) presses the piston backwards and drives the sliding seat (4) to return along the guide rod (11) after the manual pump unloads.

9. A rocket launcher locking body locking force detection device according to claim 8, wherein: the manual pump is replaced by an electric pump.

10. The rocket launcher locking body locking force detection device according to claim 1 or 2, wherein: the upper part of the sliding block (16) is clamped in the front support (18) through a pin (14), and the lower part of the pressure spring (13) is provided with a bottom plate (12).