CN110285706B - Coaxial push-pull type DF37 mm high-speed gun breechblock locking device - Google Patents

Abstract

The invention discloses a coaxial push-pull type DF37 mm high-fire gun breechblock locking device which is fixed on a cradle shell of an original gun and is provided with a locking rod capable of stretching into the inner side of the cradle shell and blocking a protruding shaft from moving, a lock cylinder driven by a motor assembly is driven by a spring II to slide against the locking rod, the locking rod penetrates through a sleeve I, a resetting force is applied by the spring I in the sleeve I, and the lock cylinder is used for blocking the locking rod from resetting so as to enable the locking rod to lock the breechblock. The invention also relates to a control method of the coaxial push-pull type DF37 mm high-speed cannon breechblock locking device. The device of the invention has simple structure, low price, convenient maintenance and repair and can record the information of the operating personnel.

Description

Coaxial push-pull type DF37 mm high-speed gun breechblock locking device

Technical Field

The invention belongs to a lockset device, and particularly relates to a coaxial push-pull type DF37 mm antiaircraft gun breechblock locking device and a control method.

Background

The 37 mm high-fire cannon is a main tool for artificial hail suppression and rain enhancement in China, and is large in quantity and wide in distribution. According to the statistics of 2018, more than 7000 antiaircraft guns are used in the nation, are used for hail suppression and rain enhancement operation, and are indispensable powerful tools for disaster prevention and reduction. The antiaircraft gun generally needs 4-6 manual operations, and because the installation position of the antiaircraft gun is mostly in suburbs or mountaintops, a management equipment device for limiting the use of the DF37 mm antiaircraft gun is not provided at present. During operation, a meteorological department is adopted to designate a plurality of people to operate in suburbs or mountain top blast points. Along with economic development, the artificial hail suppression and rain enhancement of the domestic DF37 mm antiaircraft gun are increased continuously, the distribution of the device is wide, the safe use problem of the DF37 mm antiaircraft gun exists all the time, and the problem that the safe use of the DF37 antiaircraft gun in hail suppression operation is prominent is solved. There is a critical need for a locking device that effectively authorizes the safe use of DF37 mm antiaircraft guns and prevents damage and failure.

Disclosure of Invention

The invention aims to provide a coaxial push-pull type DF37 mm high-fire gun breechblock machine locking device which is transformed on the original gun, retains the manual operation function of the original gun, and has the advantages of simple structure, low price and good reliability.

The invention also provides a control method of the coaxial push-pull type DF37 mm antiaircraft gun breech lock locking device, which is convenient for maintenance and repair, records information of operating personnel, carries out fingerprint authorization unlocking direction machine in a wired communication mode, prevents the antiaircraft gun from being used for other purposes except hail suppression and rain enhancement, and aims to provide safe use of the DF37 mm antiaircraft gun to a great extent.

The purpose of the invention is realized by adopting the following technical measures:

a coaxial push-pull type DF37 mm high-fire gun breechblock locking device comprises a protruding shaft driven by a pull rod in a cradle shell of a gun body, wherein the protruding shaft moves along with the pull rod to enable a crank to rotate around a breechblock switch shaft to switch the breechblock, the locking device is installed on one surface of the cradle shell, which is far away from the protruding shaft, a first sleeve and a second sleeve are installed in the locking device in an encapsulating manner, the first sleeve is installed perpendicular to the cradle shell, the side surface of the first sleeve is communicated with the second sleeve through a through hole, the other end of the second sleeve is connected with a shell of a stepping motor, one end of a locking rod penetrates through the cradle shell, the other end of the locking rod penetrates through the first sleeve and a copper sleeve to be connected with a locking cap, an inner taper sleeve of the first sleeve is sleeved on the periphery of the locking rod to be connected and fixed with the locking rod, one end of a spring is limited;

in the second sleeve, the worm is in shaft pivot transmission by a stepping motor, the worm is sleeved outside the worm, a sliding groove is formed in the surface of the second sleeve, a retaining ring is sleeved in the worm sleeve, a retaining ring bolt penetrates through the sliding groove, the worm sleeve is connected with a retaining ring bolt, one end of a lock cylinder is in sliding connection with the inner periphery of the retaining ring, the outer periphery of the other end of the lock cylinder is fixedly connected with a convex ring, a second spring is sleeved on the outer periphery of the lock cylinder, two ends of the second spring are respectively connected with the retaining ring and the convex ring, the lock cylinder is driven by the second spring to axially displace along with the worm sleeve, extends into the first sleeve and tightly abuts against a lock rod to slide or prevent.

Furthermore, the conical surface of the taper sleeve faces the cradle shell, and the taper bottom faces the lock cap, so that the lock core can compress the second spring when sliding along the conical surface.

Further, the worm is connected with the shaft of the stepping motor through a toe screw of the motor.

Furthermore, a key hole is formed in the position, corresponding to the circumferential surface of the worm sleeve, of the second sleeve, a key is inserted into the key hole and then extends into one side, close to the lock rod, of the convex ring, a semi-cylindrical notch is formed in the end portion, inserted into the locking device, of the key, and the convex teeth are arranged on one side, away from the notch, of the end portion.

A control method of a coaxial push-pull type DF37 mm high-speed gun breechblock locking device comprises the following steps: the lock cap is pressed, so that the lock rod is pushed into one side of the protruding shaft facing the pull rod, and the lock cylinder is driven by the reset piece II to extend into one side of the taper sleeve, which is far away from the cradle shell, so as to prevent the lock rod from resetting;

the unlocking method comprises the following steps: when the lock cylinder stops the lock rod from resetting under the action of the resetting piece II, the groove of the key is opposite to the convex ring and is inserted into the key hole, the convex teeth are rotated to be opposite to the convex ring, the lock cylinder is driven to move back to the lock rod, the lock of the lock cylinder on the lock rod is released, and the protruding shaft is moved;

and the unlocking method II comprises the following steps: an instruction is input to the PLC through fingerprint verification of the operation panel, the PLC outputs a control signal to the motor driver according to the instruction, the motor driver drives the stepping motor to rotate, the worm sleeve is pulled back, the lock cylinder is far away from the lock rod, and the first resetting piece drives the lock rod to be far away from the protruding shaft;

the PLC is also communicated with the touch screen through RS-485 for data transmission, the PLC feeds back data to the touch screen, the real-time data of the system is looked up through the touch screen, the system parameters are modified through the touch screen, and a control instruction is input to the PLC through the touch screen; the touch screen outputs system real-time data output by the PLC to the DTU wireless data transmission module in an MODBUS mode, and the DTU wireless data transmission module transmits the system real-time data to a DF-14 hail-suppression real-time information system website server through an antenna; the operation panel is also provided with a mechanical switch and a button.

The invention is designed and researched according to the requirements of national weather bureau, Shanghai pipe and disaster reduction department, has been preliminarily approved by superior administrative departments, and is tried in inner Mongolia.

Compared with the prior art, the invention has the following advantages and effects:

1. strengthen antiaircraft gun safety in utilization management: the lock rod and the lock cylinder are packaged in the locking device and are not easy to damage, especially when a shell of the locking device is connected to a cradle shell by adopting a special bolt, under the condition that a special screwdriver is not used, a common tool is difficult to damage the structure for unlocking, the special bolt is provided with a polygonal inner cavity, the bottom surface of the inner cavity is also outwards protruded to form a special-shaped protrusion part, and the protrusion part extends to the top end surface of the inner cavity and can eject the common polygonal screwdriver; the purpose of unlocking can be achieved only by starting the stepping motor in a verification mode and pulling back the screw pair.

2. The identity authentication management of the user can acquire the information of the operating personnel, the information of the commander and the online monitoring through identity authentication, and prevent the antiaircraft gun from being used for terrorism.

3. The lock body has simple structure, low price and good reliability, and is convenient to maintain and repair: the first sleeve, the second sleeve, the worm and the worm sleeve are common parts, and the cost is low. And the stress of the transmission mode of the worm and the worm sleeve is uniform, the lock cylinder, the worm and the worm sleeve are not easy to deform, the faults are few, the key can generate eccentric displacement through rotation to enable the lock cylinder to deviate from the lock rod to displace under the condition that the stepping motor fails or loses power supply, the key belongs to a special part, the key is difficult to replace by a common tool and can be used in an authorized mode, and the safety is high.

4. The lock body has good reliability: in the common electronic lock in the prior art, the lock cylinder is stirred by using electromagnetic force, and when the bottom surface of the taper sleeve is blocked by the lock cylinder in the plate application, the lock cylinder is subjected to pressure to generate large static friction force, so that the electronic lock cannot retract into the lock cylinder and cannot be unlocked.

The locking device does not depend on power supply during locking, is simple to operate, does not need continuous power supply after unlocking, can keep an unlocking state, and is different from an electronic lock in the prior art. The breechblock locking device does not change the original breechblock manual opening and closing structure and does not change the operation of the existing high-speed gun.

Drawings

FIG. 1 is a schematic view of the installation position of a coaxial push-pull type DF37 mm antiaircraft gun breechblock;

FIG. 2 is a schematic diagram showing the appearance of a coaxial push-pull type DF37 mm locking bolt of an antiaircraft gun breech block;

FIG. 3 is a schematic view of the assembly of a coaxial push-pull type DF37 mm antiaircraft gun breechblock locking device;

FIG. 4 is a side view of a coaxial push-pull type DF37 mm antiaircraft gun breechblock locking arrangement;

FIG. 5 is a schematic view of a special bolt in a coaxial push-pull type DF37 mm antiaircraft gun breechblock locking arrangement;

FIG. 6 is a schematic structural view of a coaxial push-pull type DF37 mm cannon bolt locking device sleeve II;

FIG. 7 is a schematic view of a coaxial push-pull type DF37 mm antiaircraft gun breech lock locking device key;

fig. 8 is a diagram showing a control method of a coaxial push-pull type DF37 mm antiaircraft gun breechblock locking device.

Wherein: 2 cradle shell, 3 crank, 4 cannon bolt shaft, 5 protruding shaft, 1-1 shell, 1-2 characteristic bolt, 1-4 key, 1-5 polygonal groove, 1-6 protrusion, 1-7 worm, 1-9 lock cap, 1-10 sleeve I, 1-11 stepping motor, 1-12 lock rod, 1-13 sleeve II, 1-14 baffle ring bolt, 1-15 lock core, 1-16 convex tooth, 1-17 stepping motor shaft, 1-18 spring I, 1-19 baffle ring, 1-20 spring II, 1-21 motor toe screw, 1-22 vortex rod sleeve, 1-23 cone sleeve, 1-24 convex ring, 1-25 chute, 1-26 slot, 1-27 gap, 1-29 copper sleeve.

Detailed Description

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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As can be known from the figures 1, 2, 3 and 4, the gun turret locking device comprises a projecting shaft 5 driven by a pull rod 6 in a cradle shell 2 of a gun body, the projecting shaft 5 moves along with the pull rod 6 to enable a crank 3 to rotate around a bolt switch shaft 4 to switch a bolt, a locking device 1 is arranged on one surface of the cradle shell 2, which is far away from the projecting shaft 5, a sleeve I1-10 and a sleeve II 1-13 are encapsulated in the locking device 1, the sleeve I1-10 is arranged perpendicular to the cradle shell 2, the side surface of the sleeve I1-10 is communicated with the sleeve II 1-13, the other end of the sleeve II 1-13 is connected with a shell of a stepping motor 1-11, one end of a lock rod 1-12 penetrates through the cradle shell 2, the other end penetrates through the two ends of the sleeve I1-10 and a copper sleeve 1-29 to be connected with a lock cap 1-9, the copper sleeve 1-29 is connected with one end of the sleeve I1, the inner taper sleeve 1-23 is sleeved on the periphery of the lock rod 1-12 in the sleeve I1-10 and is fixedly connected with the lock rod 1-12, one end of the spring I1-18 is limited by the cradle shell 2, and the other end of the spring I1-18 applies thrust towards the lock cap 1-9 to the taper sleeve 1-23;

in a sleeve II 1-13, a worm 1-7 is in pivot transmission by a stepping motor shaft 1-17, a worm sleeve 1-22 is sleeved outside the worm 1-7, the surface of the sleeve II 1-13 is provided with a chute 1-25, a baffle ring 1-19 is sleeved in the worm sleeve 1-22, a baffle ring bolt 1-14 passes through the chute 1-25 and the worm sleeve 1-22 to be connected with a baffle ring bolt 1-14, the rotation of the worm sleeve 1-22 is limited in the circumferential direction, so that the worm sleeve 1-22 is driven by the worm 1-7 to move freely in the axial direction, one end of a lock core 1-15 is in sliding connection with the inner circumference of the baffle ring 1-19, the outer circumference of the other end of the lock core 1-15 is fixedly connected with a convex ring 1-24, a spring II 1-20 is sleeved on the outer circumference of the lock core 1-15, and two ends of the spring II 1-20 are, the lock core 1-15 is driven by the spring II 1-20 to axially move along with the worm sleeve 1-22, extends into the sleeve I1-10 to tightly abut against the lock rod 1-12 to slide or prevent the taper sleeve 1-23 from moving towards the copper sleeve 1-29, or retreats into the sleeve II 1-13 to be far away from the lock rod 1-12. The conical surface of the taper sleeve 1-23 faces the cradle shell 2, the taper bottom faces the lock cap 1-9, and the lock core 1-15 can compress the spring II 1-20 when sliding along the conical surface.

Two ends of the sleeve II 1-13 are connected with the shell of the stepping motor and the side face of the sleeve I1-10 through special bolts, the copper bush 1-29 is also connected with the sleeve I1-10 through the special bolts, the sleeve I1-10 can be fixed on the cradle shell 2 in a welding mode, after being welded with a flange, the flange is fixed on the cradle shell 2 through the special bolts, and one end of the sleeve I1-10, which is close to the lock cap 1-9, is connected with the shell body 1-1 through the special bolts 1-2. As shown in fig. 5, the special bolt is provided with a polygonal inner concave cavity 1-5, the bottom surface of the inner concave cavity is also protruded outwards to form a special-shaped protrusion part 1-6, and the protrusion part extends to the top end surface of the inner concave cavity and can eject a common polygonal screwdriver; the purpose of unlocking can be achieved only by starting the stepping motor in a verification mode and pulling back the worm sleeve.

The worm 1-7 is also provided with a motor toe screw 1-21 embedded in the stepping motor shaft 1-17, and the motor toe screw 1-21 is used for limiting the scroll bar 1-7 to rotate relative to the stepping motor shaft 1-17. The side surfaces of the first sleeve 1-10 are communicated with the second sleeve 1-13 through holes, and the inner peripheries of the through holes are in clearance fit with the lock cylinder.

When the lock is locked, the lock cap 1-9 is pressed downwards manually, the lock rod 1-12 and the taper sleeve 1-23 move towards the cradle shell 2, the slope surface of the taper sleeve 1-23 slides relative to the lock core 1-15, the worm sleeve 1-13 is fixed by the worm 1-7, the lock core 1-15 is compressed by the lateral component force to move rightwards by the compression spring II 1-20, the spring I1-18 of the lock rod 1-12 is compressed by stress, when the taper sleeve 1-23 moves to exceed the lock core 1-15 and is separated from contact, the lock core 1-15 moves leftwards by the reaction force of the spring II 1-20, and the lock core 1-15 is blocked at the taper bottom side of the taper sleeve 1-23. And (3) loosening the lock cap 1-9, enabling the lock rod 1-12 to move towards the lock cap under the reaction force of the spring I1-18 by the lock rod 1-12, enabling the conical bottom of the conical sleeve 1-23 to be in contact with and overlapped with the lock cylinder 1-15, limiting the lock rod 1-12 to continue to move, and enabling the bottom of the lock rod 1-12 to extend into the outer shell of the cradle and block the front and back of the protruding shaft of the switch shaft, so that the protruding shaft cannot move, the breechblock cannot be opened, and the breechblock can be locked.

Example 2

On the basis of embodiment 1, in order to overcome the problem that the stepping motors 1 to 11 can still be unlocked when power supply cannot be obtained or the stepping motors cannot be used for unlocking under the condition of failure, as shown in fig. 6, key holes 1 to 25 are formed in corresponding positions of the circumferential surfaces of the sleeve barrel II 1 to 13 and the worm sleeve 1 to 22, as shown in fig. 3, after the keys 1 to 4 are inserted into the key holes 1 to 25, the keys 1 to 4 extend into one sides of the convex rings 1 to 24, which are close to the lock rods 1 to 12, as shown in fig. 7, the ends of the keys 1 to 4 inserted into the locking device 1 are provided with semi-cylindrical notches 1 to 26, and the convex teeth 1 to 16 are arranged on the sides, which are far away from the notches 1 to 26, of the ends, so that the convex teeth 1 to 16 are opposite to the convex rings 1 to 24 after the concave grooves 1 to 26 of the keys 1 to 4 are opposite to the convex rings 1 to 24 and are, the lock cylinder 1-15 can be driven to move back to the lock rod 1-12, the lock rod is unlocked by the lock cylinder, and the protruding shaft 5 can move.

As can be seen from the structures of embodiment 1 and embodiment 2, the force applied by the worm sleeve to the retainer ring is uniformly distributed in the circumferential direction of the lock cylinder shaft and is concentric with the lock cylinder shaft, so that the deformation of the worm and the worm sleeve is reduced, and the failure rate is low.

In this embodiment, if the position of the worm sleeve corresponding to the key hole 1-25 can be provided with a notch 1-27 extending to one end of the lock rod 1-12, the key 1-4 can slide in the notch 1-27, and the movement of the worm sleeve 1-22 is not influenced without pulling out the key 1-4.

Example 3

As can be seen from fig. 8, the method for controlling the locking device of the coaxial push-pull DF37 mm antiaircraft gun steering device according to embodiments 1 and 2 includes the steps of: after the control device of the locking device of the DF37 mm antiaircraft gun steering gear is electrified, authorized personnel verify fingerprints on the fingerprint acquisition module, after the fingerprints pass the verification, an unlocking button is pressed, an unlocking button instruction is sent to the PLC controller, a control signal is output to the motor driver according to the instruction, the motor driver drives the motor, the motor rotates, and therefore the unlocking of the steering gear ring is achieved.

Unlocking: after the fingerprint verification is passed through the operation panel 36, an unlocking instruction is input to the PLC 37, the PLC 37 outputs a control signal to the motor driver 39 according to the instruction, and the motor driver 39 drives the stepping motors 1-11 to rotate the motors, so that unlocking of the protruding shaft and the breechblock shaft is realized;

the PLC 37 communicates with the touch screen 38 through RS-485 for data transmission, after the PLC 37 operates the RS-485 relay, feedback data are transmitted to the touch screen 38, and an operator can look up real-time data of the system through the touch screen 38. Meanwhile, an operator can modify system parameters through the touch screen 38 and can input a control command to the PLC 37 through the touch screen 38, so that unlocking of the protruding shaft and the breechblock shaft is realized.

The touch screen 38 outputs the system real-time data output by the PLC controller 37 to the DTU wireless data transmission module 41 in the form of MODBUS, and the DTU wireless data transmission module 41 transmits the system real-time data to the DF-14 hail suppression real-time information system website server through the antenna 42.

A PLC (programmable logic controller) 37 is used as a system CPU, a touch screen 38 is an HMI (human machine interface), mechanical switches and buttons are used as an operation panel 36, and a motor driver 39 is a driving unit of a corresponding execution mechanism, so that the nerve center of the conventional electric control system is formed.

The PLC 37 and the touch screen 38, the PLC 37 adopts RS _485 communication protocol to transmit data, the multi-point bidirectional communication is achieved, the noise interference resistance is good, and the transmission rate and the transmission distance can be guaranteed.

The DTU wireless data transmission module 41 is used for transmitting system parameters (information of unlocking personnel, time) to the command center in time.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims (5)

1. A coaxial push-pull type DF37 mm high-fire gun breechblock locking device is characterized by comprising a protruding shaft driven by a pull rod in a cradle shell of a gun body, wherein the protruding shaft moves along with the pull rod to enable a crank to rotate around a breechblock switch shaft to switch the breechblock, the locking device is installed on one surface of the cradle shell, which is far away from the protruding shaft, a first sleeve and a second sleeve are installed in the locking device in an encapsulating manner, the first sleeve is installed perpendicular to the cradle shell, the side surface of the first sleeve is communicated with the second sleeve through a through hole, the other end of the second sleeve is connected with a shell of a stepping motor, one end of a lock rod penetrates through the cradle shell, the other end of the lock rod penetrates through the first sleeve and a copper sleeve to be connected with a lock cap, the copper sleeve is connected with one end of the first sleeve, which is far away from the cradle shell, the sleeve is sleeved on the periphery of the lock rod and is;

in the second sleeve, the worm is in shaft pivot transmission by a stepping motor, the worm is sleeved outside the worm, a sliding groove is formed in the surface of the second sleeve, a retaining ring is sleeved in the worm sleeve, a retaining ring bolt penetrates through the sliding groove, the worm sleeve is connected with a retaining ring bolt, one end of a lock cylinder is in sliding connection with the inner periphery of the retaining ring, the outer periphery of the other end of the lock cylinder is fixedly connected with a convex ring, a second spring is sleeved on the outer periphery of the lock cylinder, two ends of the second spring are respectively connected with the retaining ring and the convex ring, the lock cylinder is driven by the second spring to axially displace along with the worm sleeve, extends into the first sleeve and tightly abuts against a lock rod to slide or prevent.

2. The locking device of a coaxial push-pull type DF37 mm cannon breech block of claim 1, wherein the taper of the taper sleeve faces the cradle housing and the taper bottom faces the lock cap, so that the lock cylinder can compress the second spring when sliding along the taper.

3. The coaxial push-pull DF37 mm cannon bolt locking device of claim 1, wherein the worm is connected with a stepper motor shaft through a motor toe screw.

4. The coaxial push-pull type DF37 mm high-speed cannon bolt locking device according to claim 1, wherein a keyhole is formed at a position corresponding to the circumferential surface of the second sleeve and the worm sleeve, a key is inserted into the keyhole and then extends into one side of the convex ring close to the lock rod, the end of the key insertion locking device is provided with a semi-cylindrical notch, and the convex tooth is arranged at one side of the end, which is far away from the notch.

5. The method of controlling a coaxial push-pull DF37 mm cannon bolt locking device of claim 1, comprising the steps of:

locking: the lock cap is pressed, so that the lock rod is pushed into one side of the protruding shaft facing the pull rod, and the lock cylinder is driven by the reset piece II to extend into one side of the taper sleeve, which is far away from the cradle shell, so as to prevent the lock rod from resetting;

the unlocking method comprises the following steps: when the lock cylinder stops the lock rod from resetting under the action of the resetting piece II, the groove of the key is opposite to the convex ring and is inserted into the key hole, the convex teeth are rotated to be opposite to the convex ring, the lock cylinder is driven to move back to the lock rod, the lock of the lock cylinder on the lock rod is released, and the protruding shaft is moved;

and the unlocking method II comprises the following steps: an instruction is input to the PLC through fingerprint verification of the operation panel, the PLC outputs a control signal to the motor driver according to the instruction, the motor driver drives the stepping motor to rotate, the worm sleeve is pulled back, the lock cylinder is far away from the lock rod, and the first resetting piece drives the lock rod to be far away from the protruding shaft;

the PLC is also communicated with the touch screen through RS-485 for data transmission, the PLC feeds back data to the touch screen, the real-time data of the system is looked up through the touch screen, the system parameters are modified through the touch screen, and a control instruction is input to the PLC through the touch screen; the touch screen outputs system real-time data output by the PLC to the DTU wireless data transmission module in an MODBUS mode, and the DTU wireless data transmission module transmits the system real-time data to a DF-14 hail-suppression real-time information system website server through an antenna; the operation panel is also provided with a mechanical switch and a button.

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