KR20210155894A - Safety arming device for fuse using worm gear and motor - Google Patents

Abstract

The present invention relates to a safety charging device for a fuse using a worm gear and a motor. The safety charging device includes: a rotor member located in a fuse to be rotatable and having a connection pipe part located with a fire-processed article for explosion embedded therein; a worm gear box body in which a worm gear and a worm wheel interlocked with the worm gear to be rotated are embedded, and which has an output shaft connected to the rotor member to rotate the rotor member; and a rotation motor directly connected with an input shaft of the worm gear box body to provide a rotation force to rotate the rotor member connected with the output shaft of the worm gear box body. Therefore, the present invention is capable of designing a fuse to be compact by increasing the usability of space in the fuse without invading an electronic part space in the fuses; improving the operational reliability of the fuse by stably maintaining a position of a rotor from a high impact occurring from the outside of the fuse through a worm gear structure; and enabling stable weapon operation.

Description

Safety loading device for fuse using worm gear and motor

The present invention relates to a safety loading device for a fuse using a worm gear and a motor.

In general, a fuse coupled to ammunition, such as an aerial bomb, is provided with a safety loading device for preventing it from being loaded within a preset time before or after firing.

The safety loading device prevents ammunition from being loaded before firing and before a certain period of time has elapsed to prevent safety accidents such as explosions at close range during handling or after firing.

The existing safety loading device is a mechanism that is loaded by moving a slider or rotating a rotor by a separate external force such as an inertia force or a spring, and includes a separate position fixing device to maintain a safe or loaded state.

The existing fuse safety loading device uses a method of directly assembling and rotating the rotor on the gearmotor to increase the gear reduction ratio of the gearmotor to prevent the rotor from rotating in a high-impact environment.

However, the conventional safety device for a fuse has a problem in that the use of the internal space of the fuse decreases and the overall shape of the fuse becomes large by assembling and rotating the rotor directly to the gear motor.

To be more specific, in order to increase the gear reduction ratio of the gearmotor, it is unavoidable to add a gear. As a result, the gearmotor lengthens and invades the space of the electronic part of the fuse, resulting in a strange board shape and increasing the number of boards, increasing the overall size of the fuse. The degree of integration was also lowered, causing various problems.

In addition, the conventional safety device for a fuse adopts a structure using contacts and contact boards and electrical wiring to maintain the safety and loading state of the explosion series, which has the disadvantage of being weak to external shock and vibration.

0001) Korean Patent Registration No. 1700291 "Double Safety Loading Device" (Registered on 2017.01.20.)

It is an object of the present invention to provide a safety loading device for a fuse that directly connects a motor to a worm gear box and assembles a rotor on an output shaft of the worm gear box to increase space utilization inside the fuse without encroaching on the electronic space.

Another object of the present invention is to provide a safety loading device for a fuse capable of stably maintaining the position of a rotor from high impact generated outside the fuse by using a worm gear structure.

Another object of the present invention is to provide a safety loading device for a fuse that maintains the safety and loading state of an explosive series by using a micro switch, and reduces assembly man-hours during manufacturing by simplifying wiring processing.

In order to achieve the above object of the present invention, an embodiment of a safety loading device for a fuse using a worm gear and a motor according to the present invention is mounted in the fuse and detonates in the fuse at the unloading position in which the chemical product is positioned to be displaced from the initiator in the fuse. It is a safety loading device for the fuse that moves the chemical product to the loading position facing the pipe. It is rotatably located inside the fuse, and the rotor member with the connection pipe part containing the chemical product for explosion is located inside, and rotates in engagement with the worm gear and the worm gear. A worm wheel having a built-in worm wheel and an output shaft connected to the rotor member to rotate the rotor member, a worm gear box body directly connected to the input shaft of the worm gear box and connected to the output shaft of the worm gear box body Provides a rotational force for rotating the rotor member It is characterized in that it includes a rotary motor.

In the present invention, in the worm gear box body, the motor shaft of the rotary motor is a direct input shaft, and the wheel gear shaft of the worm wheel rotatably positioned inside protrudes to the outside to be an output shaft on which the rotor member is mounted.

In the present invention, a stopper protrusion for limiting the position of the rotor member in the unloaded position and the loaded position is protruded from the outer circumferential surface of the rotor member, and the stopper protrusion is caught inside the fuse to limit the rotation of the rotor member. A stopper engaging portion of the may be located.

In the present invention, the stopper engaging portion includes a non-loading stopper engaging portion for stopping the rotor member at a specified unloading position by engaging the stopper projection at the designated unloading position of the rotor member, and the stopper projection at the designated unloading position of the rotor member. It may include a stopper engaging portion for loading to stop the rotor member at a specified loading position.

An embodiment of the safety loading device for a fuse using a worm gear and a motor according to the present invention may further include a micro switch unit that is located in the fuse and applies a detonation signal when the rotor member is rotated to the loading position.

In the present invention, the micro switch unit is positioned so that the contact switch in contact with the stopper protrusion protrudes, and when the rotor member is rotated and stopped at the loading position, the stopper protrusion is in contact with the contact switch or the contact switch is pressed to complete loading signal can be applied.

In the present invention, the worm gear may be movably positioned in the longitudinal direction of the motor shaft.

In the present invention, elastic support portions for elastically supporting both ends of the worm gear may be located inside the worm gear box body.

In the present invention, the worm gear has a shaft through hole through which the motor shaft is positioned, a shaft locking groove is located on an inner circumferential surface of the shaft through hole, and the motor shaft is a shaft protrusion which is inserted into the shaft locking groove on an outer circumferential surface of the shaft through hole. may be located in the longitudinal direction.

In the present invention, the elastic support part is an elastic support member through which the motor shaft passes and is movably positioned in the longitudinal direction of the motor shaft, a rotation guide ball body protruding from at least one side of the elastic support member and the worm gear and rotatably positioned, elastic It may include an elastic body for elastically supporting the support member.

In the present invention, the elastic body is a coil spring, and a ring-shaped spring support for supporting the position of the coil spring may be protruded from the elastic body support surface of the elastic support member.

An embodiment of the safety loading device for a fuse using a worm gear and a motor according to the present invention may further include a current blocking unit for blocking the current applied to the rotating motor when the current applied to the rotating motor is greater than or equal to a preset current value. .

In the present invention, when the stopper protrusion is caught by the stopper hooking part and the rotation of the rotor member is restricted and the current value of the rotary motor increases, the current cutoff part is the rotation motor when the current applied to the rotary motor is greater than or equal to a preset current value It is possible to prevent a strong restraining force from occurring in the gear meshing of the worm gear and the worm wheel by blocking the current applied to the worm gear.

The present invention has an effect that, by directly connecting the motor to the worm gear box and assembling the rotor on the output shaft of the worm gear box, the fuse can be designed compactly by increasing the space utilization inside the fuse without encroaching on the electronic space in the fuse.

The present invention has the effect of improving the operational reliability of the fuse and enabling stable weapon operation by stably maintaining the position of the rotor from high impact generated outside the fuse by using the worm gear structure.

The present invention has the effect of maintaining the safety and loading state of the explosive series by using a micro switch, and reducing the assembly man-hours during manufacturing by simplifying the wiring process and reducing the manufacturing cost.

1 is a perspective view showing an embodiment of a safety loading device for a fuse using a worm gear and a motor according to the present invention.
2 and 3 are plan views showing an example of operation of a safety loading device for a fuse using a worm gear and a motor according to the present invention.
4 is a view showing an embodiment of a worm gear box of a safety loading device for a fuse using a worm gear and a motor according to the present invention.
5 is an enlarged view of part A of FIG. 4;
6 is an exploded perspective view illustrating an embodiment of a worm gear shaft in an embodiment of a worm gear box of a safety loading device for a fuse using a worm gear and a motor according to the present invention.

The present invention will be described in more detail.

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings as follows. Prior to the detailed description of the present invention, the terms or words used in the present specification and claims described below should not be construed as being limited to conventional or dictionary meanings. Therefore, the configuration shown in the embodiments and drawings described in the present specification is only the most preferred embodiment of the present invention and does not represent all of the technical spirit of the present invention, so at the time of the present application, various It should be understood that there may be equivalents and variations.

1 is a perspective view showing an embodiment of a safety loading device for a fuse using a worm gear and a motor according to the present invention, and FIGS. 2 and 3 are an operation example of the safety loading device for a fuse using a worm gear and a motor according to the present invention is a plan view showing the fuze, FIG. 2 is a view showing the unloaded state of the fuse, and FIG. 3 is a view showing the loaded state of the fuse by rotating the rotor member 100 .

An embodiment of a safety loading device for a fuse using a worm gear and a motor according to the present invention will be described in detail below with reference to FIG. 1 .

Referring to FIG. 1 , an embodiment of a safety loading device for a fuse using a worm gear and a motor according to the present invention is rotatably located inside the fuse 10 and is connected to the output shaft of the worm gear box body 200 to rotate the output shaft and a rotor member 100 that rotates integrally with it.

The rotor member 100 has a connection pipe part 110 having a chemical product embedded therein, and the connection pipe part 110 is positioned to expose the chemical product to the outer circumferential surface of the rotor member 100 .

In the fuse 10, the initiator pipe part 11 for operating the fuse 10 by delivering the flame to the connection pipe part 110 is located, and the initiator pipe part 11 is positioned in the fuse 10 in a fixed state. installed, and the connection pipe part 110 is positioned from the unloaded state to the loaded state by the rotation of the rotor member 100 so that the fuse 10 is loaded, and the fuse 10 is operated in the loaded state.

The initiator part 11 and the connection pipe part 110 are provided in plurality, respectively, to implement a stable initiation.

The rotor member 100 is basically in an unloaded state, that is, the connection pipe part 110 is positioned to be displaced from the initiator pipe part 11, and the rotational force from the worm gear box body 200 by the operation of the rotation motor 300 It is received and rotated so that the connection pipe part 110 is positioned to face the initiator pipe part 11 and is positioned in a loaded state.

The connector 110 is detonated by the detonator to operate the fuse 10, and the fuse 10 is operated by receiving the flame from the detonator unit 11 detonated by the detonator. It should be noted that the operating configuration can be implemented with various modifications using a known structure in a known fuse, and a more detailed description will be omitted.

The rotor member 100 is mounted on the output shaft of the worm gear box body 200 and rotates together with the output shaft. It is taken as an example to be positioned coincidentally.

The worm gear box body 200 includes a gear box housing 230, and the input shaft, that is, the motor shaft 310 of the rotary motor 300, is penetrated and positioned on the side of the gear box housing 230, and the gear box housing ( A worm gear 210 mounted on the motor shaft 310 of the rotary motor 300 and a worm wheel 220 rotating in engagement with the worm gear 210 and rotating about the output shaft are located inside the 230 .

In the worm gear box body 200, the motor shaft 310 of the rotating motor 300 is a direct input shaft, and the wheel gear shaft 221 of the worm wheel 220 rotatably positioned inside is protruded to the outside to become an output shaft. .

As an example, the rotor member 100 is mounted on an output shaft protruding to the outside of the gearbox housing 230 and has a structure to rotate integrally with the worm wheel 220 .

On the outer peripheral surface of the rotor member 100, a stopper protrusion 120 for limiting the position of the rotor member 100 in the unloaded position and the loaded position is protruded, and the stopper protrusion 120 is caught in the fuse 10. A plurality of stopper engaging portions 130 for limiting the rotation of the rotor member 100 are positioned.

The stopper engaging part 130 is a stopper engaging part 131 for loading that stops the rotor member 100 at the designated unloading position by engaging the stopper protrusion 120 at the designated unloading position of the rotor member 100 and the rotor member ( 100) includes a stopper locking part 132 for loading that stops the rotor member 100 at the designated loading position by engaging the stopper protrusion 120 at the designated loading position.

The stopper protrusion 120 includes a first stopper protrusion 121 and a second stopper protrusion 122 positioned to be spaced apart from the outer circumferential surface of the rotor member 100, and the stopper engaging part 131 for loading includes a first stopper protrusion. A plurality of 121 and second stopper protrusions 122 are respectively hooked to limit the position of the rotor member 100, and the loading stopper engaging portion 132 includes the first stopper protrusion 121 and the second stopper protrusion. A plurality of 122 is provided so as to limit the position of the rotor member 100 by hanging each.

In the rotor member 100 , the first stopper protrusion 121 and the second stopper protrusion 122 are caught by the stopper hooking part 131 for loading, respectively, and the preset non-loading position, that is, the connection pipe part 110 is the initiator pipe part 11 . ) is positioned to deviate from

In addition, the rotor member 100 is rotated integrally with the output shaft of the worm gear box body 200 by the operation of the rotation motor 300 so that the loading position, that is, the connection pipe part 110 is positioned to face the initiator pipe part 11 . At the loading position, the first stopper protrusion 121 and the second stopper protrusion 122 are caught by the stopper engaging part 132 for loading, respectively, and the preset loading position, that is, the connection pipe part 110 is connected to the initiator pipe part 11 and It can be stopped precisely in the opposite position.

In addition, an embodiment of the safety loading device for a fuse using a worm gear and a motor according to the present invention is located in the fuse 10 and the rotor member 100 is rotated to the loading position, the micro switch unit 400 for applying a detonation signal may further include.

The micro switch unit 400 is connected to the detonation control unit of the fuse 10, detects that the rotor member 100 is rotated to the loading position, applies a detonation signal to detonate the detonation tube unit 11, and the fuse 10 operates make it possible

The micro switch unit 400 is in contact with the stopper protrusion 120 when the rotor member 100 is rotated and switched to the loading position to confirm that the rotor member 100 is stopped at the loading position, and sends a loading signal to the fuse 10 ) is applied to the detonation control unit.

The stopper protrusion 120 has an end side outer peripheral surface formed in a circular arc shape, and when the rotor member 100 is rotated and stopped at the loading position, the contact switch 410 of the micro switch unit 400 is pressed to apply a loading completion signal. .

The micro switch unit 400 is positioned so that the contact switch 410 in contact with the stopper protrusion 120 protrudes, and when the rotor member 100 is rotated and stopped at the loading position, the stopper protrusion 120 is the micro switch unit ( 400) by touching the contact switch 410 or pressing the contact switch 410 to apply a loading completion signal.

The detonation control unit receives a loading signal from the micro switch unit 400 to detonate the detonation tube unit 11 to operate the fuse 10, and various modifications to a known structure in the known fuse 10 can be implemented. Note that a more detailed description will be omitted.

Meanwhile, FIG. 4 is a view showing an embodiment of a worm gear box of a safety loading device for a fuse using a worm gear and a motor according to the present invention, and FIG. 5 is an enlarged view of part A of FIG. 4 .

6 is an exploded perspective view illustrating an embodiment of a worm gear shaft in an embodiment of a worm gear box of a safety loading device for a fuse using a worm gear and a motor according to the present invention.

4 to 6 , in the safety loading device for a fuse using a worm gear and a motor according to the present invention, the worm gear box body 200 is rotatably positioned inside the gear box housing 230 and the gear box housing 230 . It includes a worm gear 210 that becomes a worm gear 210 and a worm wheel 220 that is rotated in engagement with the worm gear 210 .

In addition, the motor shaft 310 of the rotary motor 300 passes through the side surface of the gearbox housing 230 and is positioned in the gearbox housing 230 , and the worm gear 210 is a motor positioned in the gearbox housing 230 . It is mounted on the shaft 310 and rotates integrally with the motor shaft 310 .

In addition, the worm wheel 220 is rotatably located in the gearbox housing 230 and rotates in engagement with the worm gear 210, and the wheel gear shaft 221 passes through the gearbox housing 230 and is rotatably positioned, The end side of the gear box housing is positioned to protrude to the outside to become an output shaft of the worm gear box body 200 .

The rotor member 100 is mounted on the output shaft of the worm gear box body 200 , that is, the wheel gear shaft 221 of the worm wheel 220 , and rotates integrally with the worm wheel 220 .

The worm gear 210 is movably located in the longitudinal direction of the motor shaft 310, and inside the worm gear box 200, elastic support parts 500 for elastically supporting both ends of the worm gear 210 are located.

The elastic support part 500 supports both end sides of the worm gear 210 movably positioned in the longitudinal direction of the motor shaft 310 so that the worm gear 210 is stably engaged with the worm wheel 220 to be positioned.

The worm gear 210 has a shaft through hole 211 through which the motor shaft 310 is positioned, and a shaft locking groove 212 is located on an inner peripheral surface of the shaft through hole 211 .

And, the motor shaft 310 has a shaft protrusion 311 inserted into the shaft locking groove 212 on the outer circumferential surface in the longitudinal direction, and the shaft protrusion 311 is formed at least as much as the movement range of the worm gear 210, so that the worm gear ( 210) can be stably moved in a straight line.

The shaft protrusion 311 protrudes in plurality from the outer circumferential surface of the motor shaft 310 to stably transmit the rotational force of the rotary motor 300 to the worm gear 210, and disperse and support external shocks to improve durability due to impact. can be obtained

The worm gear 210 is elastically supported by the elastic support part 500, and when the stopper protrusion part 120 is caught by the stopper locking part 130 and the rotation of the rotor member 100 is stopped, the restraint force due to gear meshing is lowered.

When the rotor member 100 is switched from the unloaded position to the loaded position using the worm gear 210 and the worm wheel 220, the stopper protrusion 120 is caught by the stopper engaging unit 132 for loading, and in the unloaded position. When returning to the loading position, the stopper protrusion 120 is caught by the stopper engaging portion 131 for loading.

When the stopper protrusion 120 is caught by the stopper hooking part 132 for loading or the rotation of the rotor member 100 is restricted by the stopper hooking part 131 for loading, the operation of the rotary motor 300 is stopped while the rotation motor As the load applied to the 300 increases and the current applied to the rotation motor 300 suddenly increases, a strong binding force is generated in the gear meshing of the worm gear 210 and the worm wheel 220 , which is a characteristic of the worm gear 210 . to be.

Due to the characteristics of the worm gear 210, as the rotation of the rotation motor 300 is limited by the stopper structure, the current applied to the rotation motor 300 suddenly increases, and the worm gear 210 and the worm wheel 220 are resistant to gear meshing. binding force arises.

The worm gear 210 has a degree of freedom to be movable in the longitudinal direction of the motor shaft 310 and is elastically supported by the elastic support part 500 so that the rotation of the rotary motor 300 is limited by the stopper structure when the worm wheel 220 and The generation of a strong binding force due to the gear meshing of the is prevented from occurring, and the load applied to the rotation motor 300 is gradually increased so that the current value applied to the rotation motor 300 is gradually increased.

On the other hand, the elastic support part 500 is at least one of the elastic support member 510, the elastic support member 510, and the worm gear 210, the motor shaft 310 penetrates and is positioned to be movable in the longitudinal direction of the motor shaft 310. It includes a rotation guide ball body 520 that protrudes from one side and is rotatably positioned, and an elastic body 530 that elastically supports the elastic support member 510 .

The elastic support member 510 includes a first surface facing the worm gear 210 and a second surface facing the gearbox housing 230 , and is rotated by being in contact with the end side of the worm gear 210 on the first surface. As an example, the rotation guide ball body 520 is positioned, and the elastic body 530 is supported on the second surface.

The elastic body 530 is a coil spring as an example, and on the second surface of the elastic support member 510 , that is, on the elastic body support surface supporting the elastic body 530 , a ring-shaped spring support part 511 for supporting the position of the coil spring. ) is positioned to protrude.

The spring support 511 protrudes in a ring shape to support the position of the coil spring so that the coil spring can be stably compressed and restored.

The rotation guide ball body 520 allows the worm gear 210 to rotate smoothly while being elastically supported by the elastic support part 500 .

The worm gear 210 may rotate smoothly while being elastically supported by the elastic body 530 , and by minimizing friction with the elastic support part 500 during rotation, the load applied to the rotation motor 300 may be minimized.

In addition, although the safety loading device for a fuse using a worm gear and a motor according to the present invention is not shown, when the current applied to the rotating motor 300 is greater than or equal to a preset current value, a current blocking unit that blocks the current applied to the rotating motor 300 (not shown) is further included.

The current blocking unit may be variously modified and implemented using a known current blocking circuit structure, and a detailed description thereof will be omitted.

The current cut-off unit blocks the current applied to the rotating motor 300 when the current applied to the rotating motor 300 is greater than or equal to a preset current value, so that the worm gear 210 and the worm wheel 220 are engaged to achieve a strong binding force, that is, recovery to a normal voltage. Stop the operation of the rotary motor 300 before the impossible gear meshing occurs.

Before the fuse 10 is mounted on the bullet, the operation of the safety loading device is checked, and while the operation of the safety loading device is checked, the rotation of the rotor member 100 is restricted and the current value of the rotary motor 300 is rapidly increased. In this case, there is a problem in that it is impossible to return to the normal voltage due to the strong binding force of the worm gear 210 and the worm wheel 220 .

In the safety loading device for a fuse using a worm gear and a motor according to the present invention, the worm gear 210 is movable in the longitudinal direction of the motor shaft 310 and is elastically supported by the elastic support part 500 so that the rotor member 100 is loaded at the loading position. and when rotation is restricted by the stopper structure in the unloaded position, a strong binding force is prevented from occurring in the gear meshing of the worm gear 210 and the worm wheel 220, and the current value applied to the rotation motor 300 is suddenly increased prevent it from becoming

In addition, the safety loading device for a fuse using a worm gear and a motor according to the present invention gradually increases the current applied to the rotation motor 300 by the longitudinal movement structure of the worm gear 210 as a current blocking unit. When the current applied to is greater than or equal to the preset current value, the current applied to the rotary motor 300 can be cut off, so that the worm gear 210 and the worm wheel 220 are meshed and strong binding force, that is, before the gear meshing that cannot be restored to a normal voltage occurs. The operation of the rotary motor 300 is stopped.

That is, in the safety loading device for a fuse using the worm gear 210 and the motor according to the present invention, when the rotor member 100 is rotated to the loaded and unloaded positions during inspection, the rotation is restricted by the stopper structure while the worm gear (210) It is possible to prevent a strong binding force from being generated in the gear meshing of the worm wheel 220 with the worm gear 210 during inspection, thereby preventing the occurrence of defects due to the strong binding force due to the gear meshing of the worm gear 210 and the worm wheel 220, and operation during actual operation stability can be ensured.

In the present invention, the rotation motor 300 is directly connected to the worm gear box body 200 and the rotor member 100 is assembled on the output shaft of the worm gear box body 200 without invading the space of the electronic part in the fuse 10 ) It is possible to design the fuse 10 compactly by increasing the internal space utilization.

According to the present invention, the position of the rotor can be stably maintained from high impact generated outside the fuse 10 by using the worm gear structure, thereby improving the operational reliability of the fuse 10 and enabling stable weapon operation.

The present invention maintains the safety and loading state of the explosive series by using a micro switch, and simplifies the wiring process to reduce assembly man-hours and reduce manufacturing costs.

It should be noted that the present invention is not limited to the above-described embodiments, and can be implemented with various modifications without departing from the gist of the present invention, which is included in the configuration of the present invention.

10: fuse 11: detonator tube section
100: rotor member 110: connection pipe part
120: stopper protrusion 121: first stopper protrusion
122: second stopper projection 130: stopper engaging part
131: non-loading stopper engaging portion 132: loading stopper engaging portion
200: worm gear box body 210: worm gear
211: shaft through hole 212: shaft locking groove
220: worm wheel 221: wheel gear shaft
230: gearbox housing 300: rotation motor
310: motor shaft 311: shaft projection
400: micro switch part 500: elastic support part
510: elastic support member 511: spring support
520: rotation guide ball body 530: elastic body

Claims (13)

It is a safety loading device for the fuse that is installed in the fuse and moves the chemical from the unloading position where the chemical product is positioned misaligned with the detonator tube in the fuse to the loading position facing the detonator tube in the fuse,
Rotatably located inside the fuse, a rotor member in which a chemical product for explosion is located, the connecting pipe portion is located;
a worm gear box having a built-in worm gear and a worm wheel rotating in engagement with the worm gear and an output shaft connected to the rotor member to rotate the rotor member; and
A safety loading device for a fuse using a worm gear and a motor, comprising a rotation motor directly connected to the input shaft of the worm gear box and providing a rotational force for rotating the rotor member connected to the output shaft of the worm gear box body.
The method according to claim 1,
The worm gear box body is a worm gear and a motor, characterized in that the motor shaft of the rotary motor is a direct input shaft, and the wheel gear shaft of the worm wheel rotatably positioned inside protrudes to the outside to be an output shaft on which the rotor member is mounted. The safety loading device for the fuse used.
The method according to claim 1,
A stopper protrusion for limiting the position of the rotor member in the unloaded position and the loaded position is protruded from the outer peripheral surface of the rotor member,
A safety loading device for a fuse using a worm gear and a motor, characterized in that a plurality of stopper locking parts for limiting rotation of the rotor member are located inside the fuse by engaging the stopper protrusion.
4. The method according to claim 3,
The stopper engaging portion,
a non-loading stopper engaging part for stopping the rotor member at a designated unloading position by engaging the stopper protrusion at a designated unloading position of the rotor member; and
Safety loading device for fuses using a worm gear and a motor, characterized in that it includes a stopper engaging portion for stopping the rotor member at a specified loading position by engaging the stopper protrusion at a specified loading position of the rotor member.
4. The method according to claim 3,
Safety loading device for a fuse using a worm gear and a motor, which is located in the fuse and further comprises a micro switch for applying a detonation signal when the rotor member is rotated to the loading position.
6. The method of claim 5,
The micro switch part is positioned so that a contact switch contacting the stopper protrusion protrudes,
The safety loading device for a fuse using a worm gear and a motor, characterized in that when the rotor member is rotated and stopped at the loading position, the stopper protrusion contacts the contact switch or applies a loading completion signal by pressing the contact switch.
The method according to claim 1,
The worm gear is a safety loading device for a fuse using a worm gear and a motor, characterized in that it is movably positioned in the longitudinal direction of the motor shaft.
8. The method of claim 7,
A safety loading device for a fuse using a worm gear and a motor, characterized in that elastic support portions for elastically supporting both ends of the worm gear are located inside the worm gear box body.
8. The method of claim 7,
The worm gear has a shaft through hole through which the motor shaft is positioned, and a shaft locking groove is located on an inner circumferential surface of the shaft through hole,
The motor shaft is a safety loading device for a fuse using a worm gear and a motor, characterized in that the shaft protrusion inserted into the shaft locking groove is positioned on the outer peripheral surface in the longitudinal direction.
9. The method of claim 8,
The elastic support portion,
an elastic support member through which the motor shaft passes and is movably positioned in the longitudinal direction of the motor shaft;
a rotation guide ball body protruding from at least one side of the elastic support member and the worm gear and rotatably positioned; and
Safety loading device for a fuse using a worm gear and a motor, characterized in that it includes an elastic body for elastically supporting the elastic support member.
11. The method of claim 10,
The elastic body is a coil spring,
A safety loading device for a fuse using a worm gear and a motor, characterized in that a ring-shaped spring support for supporting the position of the coil spring is protruded from the elastic support surface of the elastic support member.
4. The method according to claim 3,
Safety loading device for a fuse using a worm gear and a motor, characterized in that it further comprises a current blocking unit for blocking the current applied to the rotation motor when the current applied to the rotation motor is greater than or equal to a preset current value.
13. The method of claim 12,
When the current value of the rotating motor increases while the stopper protrusion is caught by the stopper engaging unit and the rotation of the rotor member is restricted, the current blocking unit is applied to the rotating motor when the current applied to the rotating motor is greater than or equal to a preset current value A safety loading device for a fuse using a worm gear and a motor, characterized in that it blocks the current to prevent a strong binding force from occurring in the gear meshing of the worm gear and the worm wheel.

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