Mechanical tailstock based on differential pressure automatic separation and used for forcing gun
By designing a mechanical tailstock based on pressure differential automatic release, the problem of difficult transportation and maintenance of traditional mortar tailstocks after high-density firing has been solved. The tailstock is automatically ejected and its structure is simplified, improving the mobility and maintenance efficiency of the mortar.
Patent Information
- Application Number
- CN202422524425.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-10-18
AI Technical Summary
Traditional mortar tailstocks accumulate heavy loads after high-density firing, making transportation, relocation, and deployment difficult. Their complex structure also requires frequent maintenance, affecting mobility and maintenance costs.
Design a mechanical tailstock based on pressure differential automatic release. The tailstock is automatically released from the base and projectile by means of a gripping component and a shear pin structure. The high pressure differential generated by the explosive detonation is used to automatically eject the tailstock.
It enables automatic tailstock ejection, simplifies the structure, reduces maintenance difficulty and cost, and improves the mobility and rapid response capability of the mortar-howitzer.
Smart Images
Figure CN223580787U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a tailstock for mortar, especially to a mechanical tailstock for mortar based on pressure difference automatic disengagement. BACKGROUND
[0002] The tailstock is a structure for bearing the ammunition box during the launching of the mortar, and plays an important role in the launching of the mortar. The traditional tailstock is connected with the projectile by a shear pin or a shear ring, and the tail rod is fixedly connected with the base. When the mortar is launched, the shear pin or the shear ring is sheared off under the superhigh pressure of the gunpowder, and the tail rod and the base remain in the chamber, and the projectile flies out at high speed relying on the huge thrust. However, after high-density shooting, many heavy tailstocks are accumulated in the cabin of the mortar of this mode, which makes the transportation, transfer and deployment of the mortar difficult, reduces the rapid response and adaptability of the mortar to different environments, and adversely affects the mobility of the whole mortar.
[0003] In addition, the existing tailstock of the mortar usually has a relatively complex structure, including a plurality of components and connecting mechanisms, which makes it necessary to spend a lot of time and effort to check, disassemble, assemble and debug during daily maintenance and maintenance. For example, some connecting components have many parts, which may be loose or worn after long-term use, and need to be frequently tightened and replaced, increasing the workload and cost of maintenance.
[0004] Therefore, it is of great significance to develop a tailstock with automatic throwing function and simple structure to solve the above problems faced by the mortar. SUMMARY
[0005] Therefore, the utility model aims at providing a mechanical tailstock based on pressure difference automatic disengagement, which realizes two-stage disengagement based on pressure difference through the design of the connecting structure of the base and the tail rod and the connecting structure of the tail rod and the projectile, and helps the mortar tailstock to automatically throw.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0007] A mechanical tailstock based on pressure difference automatic disengagement for mortar, comprising a base, a tail rod, a gripping component, a rubber ring and a shear pin, wherein the base and the tail rod are connected by the shear pin, the tail rod and the projectile of the mortar are connected by the gripping component, the gripping component comprises a gripping piece, a shaft, a hook, an air chamber and an air hole, the gripping pieces are evenly arranged along the circumference of the gripping component, the hooks are arranged on the upper part of the gripping pieces, the shafts are arranged on the lower part of the gripping pieces, the air chamber is arranged between the hooks and the shafts, the air chamber is laterally provided with the air hole, the rubber ring is sleeved on the gripping component and is in contact with the lower end of the projectile, and is used for fixing the gripping component; the gripping component is used for the automatic disengagement of the projectile and the tail rod; and the shear pin is used for the disengagement of the base and the tail rod.
[0008] Further, the base comprises a base disc and a convex part, the base disc is cylindrical, the convex part is arranged on the base disc, and the base is used for closing air and supporting; the tail rod is also cylindrical, the radius of the tail rod is smaller than that of the base, and the tail rod is used for supporting the cartridge case and conducting fire.
[0009] Further, base pin holes are arranged along the circumference of the convex part, tail rod pin holes are arranged along the circumference of the rear end of the tail rod, when the mortar is assembled, the base pin holes and the tail rod pin holes are respectively centered, the shear pin is inserted into the base pin holes and the tail rod pin holes, and the base is connected with the tail rod.
[0010] Further, powder holes are uniformly arranged along the circumference of the tail rod.
[0011] Further, the gripping part is cylindrical, and the radius of the gripping part is equal to that of the tail rod.
[0012] Further, the lower part of the gripping piece is hinged with the front end of the tail rod through a rotating shaft, and the upper part of the gripping piece is fixedly connected with the rear end of the projectile by inserting the gripping hook into the groove.
[0013] Further, the gripping part comprises three gripping pieces, three rotating shafts, three gripping hooks, one air chamber and three air holes.
[0014] Further, each air hole is arranged between two gripping pieces.
[0015] Compared with the prior art, the utility model has the following advantages:
[0016] 1) The mechanical tail frame based on differential pressure automatic separation of the utility model breaks through the technology that the tail rod of a traditional mortar is fixedly connected with a base, and can realize the effect of tail frame front throwing;
[0017] 2) The principle is clear, and the reliability is high; the high pressure generated in an explosive moment of explosion of explosive makes shear pins between the base and the tail rod be sheared off, the base is separated from the tail rod, after the projectile is ejected, the gripping pieces are opened under the action of internal and external pressure difference, the tail rod is separated from the projectile, and then the tail rod is thrown forward by inertia force; the front and rear separation is performed under relatively large pressure;
[0018] 3) The structure is simple, the shear pins between the base and the tail rod of the mortar and the gripping part used for separating the tail rod from the projectile are simple in structure, and are easy to manufacture and maintain. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is the whole structure schematic diagram of the mechanical tail frame based on differential pressure automatic separation provided by the utility model embodiment;
[0020] Figure 2 is the structure schematic diagram of the base in the mechanical tail frame based on differential pressure automatic separation provided by the utility model embodiment;
[0021] Figure 3 This is a schematic diagram of the tail boom in the mechanical tailstock based on differential pressure automatic disengagement provided in this embodiment of the utility model;
[0022] Figure 4 This is a schematic diagram of the gripping component in the mechanical tailstock that automatically disengages based on differential pressure, provided in this embodiment of the utility model.
[0023] Figure 5 This is a schematic diagram of the connection between the gripping component and the tail rod in the mechanical tailstock based on differential pressure automatic disengagement provided in this embodiment of the utility model;
[0024] Figure 6 This is a schematic diagram of the connection between the tail rod and the base in a mechanical tailstock based on differential pressure automatic disengagement provided in an embodiment of this utility model.
[0025] Reference numerals: 1. Base; 2. Tail rod; 3. Gripping component; 4. Rubber ring; 5. Base pin hole; 6. Tail rod pin hole; 7. Gunpowder hole; 8. Gripping plate; 9. Rotating shaft; 10. Gripping hook; 11. Gas chamber; 12. Gas hole; 13. Projectile; 14. Shear pin; 15. Groove. Detailed Implementation
[0026] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in more detail below with reference to the accompanying drawings, but this utility model is not limited thereto.
[0027] In the description of this utility model, it should be noted that the terms "center", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] like Figure 1 As shown, this utility model provides a mechanical tailstock with automatic disengagement based on differential pressure, including a base 1, a tail rod 2, a gripping component 3, a rubber ring 4, and a shear pin 14. Wherein, as... Figure 2 As shown, the base 1 includes a chassis and a protrusion. The chassis is cylindrical, and the protrusion is mounted on the chassis. A base pin hole 5 is formed along the circumference of the protrusion. The base 1 is used for airtightness and support. Figure 3 As shown, the tail rod 2 is also cylindrical, with a radius smaller than that of the base 1. Gunpowder holes 7 are evenly arranged along the circumference of the tail rod 2. A tail rod pin hole 6 is formed at the rear end of the tail rod 2 along its circumference. When the mortar is assembled, the base pin hole 5 and the tail rod pin hole 6 are aligned, and the shear pin 14 is inserted, passing through both the base pin hole and the tail rod pin hole. Figure 6The tail rod 2 is used for ammunition box support and fire transmission.
[0029] As shown in Figure 1 and 5 , the front end of the tail rod 2 is fixedly connected with the gripping component 3, and a gap is left between the two. The gripping component 3 is used for automatic disengagement of the projectile 13 and the tail rod 2. As shown in Figure 4 , the gripping component 3 comprises a gripping sheet 8, a rotating shaft 9, a gripping hook 10, an air chamber 11 and an air hole 12, and the whole is in a cylindrical shape, with a radius equal to that of the tail rod 2. As shown in Figure 1 , 4 and 5, the gripping sheets 8 are uniformly arranged along the circumference of the gripping component 3, the gripping hook 10 is arranged on the upper part of the gripping sheet 8, and the rotating shaft 9 is arranged on the lower part of the gripping sheet 8; the lower part of the gripping sheet 8 is hingedly connected with the front end of the tail rod 2 through the rotating shaft 9, and the upper part of the gripping sheet 8 is fixedly connected with the rear end of the projectile 13 by inserting the gripping hook 10 into the groove 15.
[0030] In a preferred embodiment, as shown in Figure 4 , the gripping component 3 comprises three gripping sheets 8, three rotating shafts 9, three gripping hooks 10, one air chamber 11 and three air holes 12. The air chamber 11 is arranged between the gripping hook 10 and the rotating shaft 9, the air chamber 11 is laterally provided with three air holes 12, and each air hole 12 is uniformly arranged between two gripping sheets 8, i.e. the three air holes 12 and the three gripping sheets 8 are uniformly distributed about the axis of the gripping component 3. The rubber ring 4 is used for fixing the gripping component 3, with an inner diameter slightly larger than the outer diameter of the gripping component 3, and is sleeved on the gripping component 3 and abuts against the lower end of the projectile 13, so as to fix the three gripping sheets 8 of the gripping component 3.
[0031] When the mortar launcher is launched, the open fire in the powder hole 7 ignites the ammunition box installed on the tail rod 2, high-pressure gas fills the air chamber 11 through the air hole 12, at the same time, the shear pin 14 between the base 1 and the tail rod 2 is sheared under the high pressure generated in the bore, the base 1 and the tail rod 2 are separated, the base 1 remains in the bore, and the tail rod 2 and the projectile 13 fly out along the rifling. When the gripping component 3 rushes out of the muzzle, the external air pressure of the gripping sheet 8 instantaneously decreases, while the air pressure in the air chamber 11 is very high, under the action of the huge pressure difference between the two, the gripping sheet 8 is pushed outward by the high pressure in the air chamber 11, the gripping component 3 and the projectile 13 are disengaged, the projectile 13 continues to fly at high speed, and the gripping component 3 and the tail rod 2 are thrown forward until they fall to the ground under the action of gravity and wind resistance and other factors.
[0032] It should be noted that the above-described embodiments are only preferred embodiments of the present application. For those skilled in the art, without departing from the principles of the present application, the present application can be modified, improved and equivalently replaced in several ways, and these modifications, improvements and equivalent replacements are also considered to fall within the protection scope of the claims of the present application.
Claims
1. A mechanical tailstock for a mortar with automatic disengagement based on differential pressure, characterized in that, The device includes a base, a tail rod, a gripping component, a rubber ring, and a shear pin. The base and the tail rod are connected by the shear pin. The tail rod is connected to the projectile of a mortar via the gripping component. The gripping component includes gripping plates, a rotating shaft, a gripping hook, an air chamber, and an air hole. The gripping plates are evenly arranged along the circumference of the gripping component. The gripping hook is located on the upper part of the gripping plates, and the rotating shaft is located on the lower part of the gripping plates. An air chamber is provided between the gripping hook and the rotating shaft, and the air hole is laterally opened in the air chamber. The rubber ring is fitted onto the gripping component and presses against the lower end of the projectile to fix the gripping component. The gripping component is used for automatic disengagement of the projectile and the tail rod. The shear pin is used for disengagement of the base from the tail rod.
2. The mechanical tailstock for a mortar based on pressure differential automatic disengagement according to claim 1, characterized in that, The base includes a chassis and a protrusion. The chassis is cylindrical, and the protrusion is disposed on the chassis. The base is used for gas sealing and support. The tail rod is also cylindrical, with a radius smaller than that of the base. The tail rod is used for ammunition box support and fire transmission.
3. The mechanical tailstock for a mortar based on pressure differential automatic disengagement according to claim 2, characterized in that, A base pin hole is provided along the circumference of the protrusion, and a tail rod pin hole is provided along the circumference of the rear end of the tail rod. When the mortar is assembled, the base pin hole and the tail rod pin hole are aligned respectively, and the shear pin is inserted therein, passing through the base pin hole and the tail rod pin hole, so that the base and the tail rod are connected.
4. The mechanical tailstock for a mortar based on pressure differential automatic disengagement according to claim 3, characterized in that, Gunpowder holes are evenly arranged along the circumference of the tail rod.
5. The mechanical tailstock for a mortar based on pressure differential automatic disengagement according to claim 4, characterized in that, The gripping component is cylindrical, and its radius is equal to that of the tail rod.
6. The mechanical tailstock for a mortar based on pressure differential automatic disengagement according to claim 5, characterized in that, The lower part of the gripper plate is hinged to the front end of the tail rod via the pivot, and the upper part of the gripper plate is fixed to the rear end of the projectile by inserting the gripping hook into the groove.
7. The mechanical tailstock for a mortar based on pressure differential automatic disengagement according to claim 6, characterized in that, The gripping component includes three gripping plates, three rotating shafts, three gripping hooks, one air chamber, and three air holes.
8. The mechanical tailstock for a mortar based on pressure differential automatic disengagement according to claim 7, characterized in that, Each pore is evenly distributed between the two grippers.