New type of wide-temperature, all-weather buffer

Abstract

This invention discloses a novel wide-temperature, all-weather buffer, comprising an outer shell, within which are a first buffer element mounting area and a second buffer element mounting area, separated by a positioning partition flange. Designed as a closed, split structure, the internal structure allows for the configuration and combination of buffer elements according to buffering requirements. It exhibits stable performance and high reliability. By configuring buffer elements with different characteristics, different buffering mechanical properties can be achieved. Due to its excellent sealing performance, it provides dust and water resistance. Wide-temperature buffer elements can be selected and configured according to buffering needs, and various elastic elements can be selected and combined to achieve diverse configurations. Using the same structural platform, different types and parameters of elastic elements can be selected to achieve different buffering performances, resulting in stronger adaptability and versatility.

Description

Technical Field

[0001] This invention belongs to the field of conventional weapons technology, specifically relating to a novel wide-temperature, all-weather buffer. Background Technology

[0002] A certain type of machine gun has a large recoil, which causes a great impact on the firing device of the fixed machine gun and generates vibration, resulting in an increased muzzle jump and thus reducing firing accuracy.

[0003] The buffer structure layout is not matched with the recoil force, and cannot effectively counteract or consume the kinetic energy of the recoil, which can easily cause oscillations during continuous firing.

[0004] It cannot adapt to conditions with large temperature variations, resulting in significant differences in damping performance and affecting shooting accuracy.

[0005] With an externally mounted buffer structure, if the buffer components are exposed, they are prone to problems such as rust and dust accumulation, which can affect shooting accuracy. Summary of the Invention

[0006] In order to solve the above-mentioned problems in the existing technology, the present invention aims to provide a new type of buffer with wide temperature range and all-weather operation.

[0007] The technical solution adopted in this invention is as follows:

[0008] A new type of wide-temperature, all-weather buffer includes an outer shell, within which are a first buffer element mounting area and a second buffer element mounting area, which are separated by a positioning partition flange; a mandrel is detachably mounted within the outer shell; and a high-precision orientation element is provided on the periphery of the mandrel.

[0009] As a preferred embodiment of the present invention, one end of the outer casing is provided with an end cap, the periphery of the end cap is provided with a plurality of set screws, and the connection between the end cap and the outer casing is provided with sealant.

[0010] As a preferred embodiment of the present invention, a circular cover plate is fixedly provided at one end of the outer shell away from the end cap, the spindle rod passes through the circular cover plate, and the high-precision orientation element is located between the circular cover plate and the mounting area of ​​the first buffer element.

[0011] As a preferred embodiment of the present invention, the end of the mandrel rod away from the end cap is fixedly provided with a mounting positioning hole.

[0012] As a preferred embodiment of the present invention, a fixing screw is provided at the end of the mandrel rod away from the mounting positioning hole.

[0013] As a preferred embodiment of the present invention, there are two buffers, namely a right buffer and a left buffer, which are used in conjunction with each other; a mounting and positioning surface is fixedly provided on one side of the outer shell, and the right buffer and the left buffer are respectively connected to the fixing component through the mounting and positioning surface, and the mounting and positioning hole is connected to the sliding component.

[0014] As a preferred embodiment of the present invention, the fixing component is a mount for a certain type of heavy machine gun, and the sliding component is connected to the gun body of the certain type of heavy machine gun.

[0015] As a preferred embodiment of the present invention, the axes of the right-side buffer and the left-side buffer are respectively coplanar with the rifling of the heavy machine gun.

[0016] A new type of shock absorber testing fixture with wide temperature range and all-weather operation includes a fixed upper cylinder, a fixed lower seat on one side of the fixed upper cylinder, and flanges of appropriate size at the ends of the fixed upper cylinder and the fixed lower seat that are close to each other. The fixed upper cylinder and the fixed lower seat are connected together by screws and nuts in conjunction with the flanges. A tension connecting seat is fixedly provided at the end of the fixed lower seat away from the nut.

[0017] As a preferred embodiment of the present invention, the fixed upper cylinder and the fixed lower seat are provided with a placement space for placing the buffer; the fixed lower seat is provided with a side fixing screw on its periphery, and the tension connecting seat is provided with a tension connecting pin; the side fixing screw is adapted to the buffer, and the tension connecting pin is adapted to the mounting positioning hole.

[0018] The beneficial effects of this invention are as follows: As a novel wide-temperature, all-weather buffer, this invention is designed as a closed, split structure. The internal structure adopts a configuration and combination of buffer elements according to buffering requirements. It has stable performance and high reliability. By configuring buffer elements with different characteristics, different buffering mechanical properties can be achieved. Due to its good sealing performance, it has dustproof and waterproof effects. According to buffering requirements, wide-temperature buffer elements can be selected and configured internally. Multiple elastic elements can be selected and combined to achieve diversified configuration. By using the same structural platform, different types and parameters of elastic elements can be selected to achieve different buffering performances of the buffer, which has stronger adaptability and versatility. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is the present invention. Figure 1 A schematic diagram of the working position structure;

[0022] Figure 3 This is the present invention. Figure 2 Enlarged structural diagram of the connection between the buffer and the machine gun mount;

[0023] Figure 4 This is the present invention. Figure 1 A schematic diagram of the cross-sectional structure;

[0024] Figure 5 This is the present invention. Figure 1 A schematic diagram of the test fixture structure;

[0025] Figure 6 This is the present invention. Figure 5 A schematic diagram of the cross-sectional structure along the AA direction;

[0026] Figure 7 This is a schematic diagram of the dynamic fatigue test and force-displacement hysteresis curve of the present invention. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] The following is combined with Figure 1-6The present invention describes a novel, wide-temperature, all-weather buffer, comprising a housing 1206. The housing 1206 contains a first buffer element mounting area 1211 and a second buffer element mounting area 1210, separated by a positioning partition flange 1214. A mandrel rod 1207 is detachably mounted within the housing 1206. A high-precision orientation element 1212 is provided on the periphery of the mandrel rod 1207. The buffer components are configurable, and the internal cavity structure is adjustable. Various elastic elements can be selected and combined as needed to achieve diverse configurations and enable the buffer to possess different performance characteristics. The first buffer element mounting area 1211 and the second buffer element mounting area 1210 can be adjusted by moving the positioning partition flange 1214, thereby adjusting the compression and reset of the buffer to the required spatial range. Through the adjustment of various elastic elements and internal space dimensions, different buffering mechanical properties can be achieved, resulting in stronger adaptability and versatility.

[0030] Depending on the buffering requirements, the internal buffer elements can be configured with a wide temperature range (e.g., -40℃ to 65℃). A variety of elastic elements can be selected and combined to achieve diverse configurations. By using the same structural platform, different types (e.g., springs, disc springs, etc.) and different parameters of elastic elements can be selected to achieve different buffering performances of the buffer, which has stronger adaptability and versatility.

[0031] Advantageously, one end of the outer casing 1206 is provided with an end cap 1205, and the periphery of the end cap 1205 is provided with a plurality of set screws 1209. Sealant 1208 is provided at the connection between the end cap 1205 and the outer casing 1206. After the position of the positioning partition flange 1214 is determined (the dimensions of the first buffer element mounting area 1211 are determined), the axial length of the second buffer element mounting area 1210 can be adjusted to the design requirements by screwing the internal thread inside the end cap 1205 into the external thread on the left side of the outer casing 1206. If the length is further reduced, pre-tightening of the second buffer element mounting area 1210 can be achieved. For the rotatable end cap 1205, after rotation and adjustment, tighten the set screws 1209 through the evenly distributed internal thread holes on the outer cylindrical surface. The corresponding surface of the outer shell 1206 is a polyhedral plane, and the bottom plane of the set screw 1209 directly abuts against the corresponding small plane of the outer shell. If it is necessary to improve the anti-loosening level, apply thread adhesive to the outer surface of the set screw 1209 and increase the number of set screws 1209 to achieve reliable anti-loosening.

[0032] The seat frame is installed outside the vehicle body and needs to withstand the test of different regions, temperatures and weather conditions to carry out shooting operations. As an important component of the seat frame, the buffer 12 is designed as a closed split structure, and the internal structure adopts a structure in which buffer elements can be configured and combined according to buffering requirements.

[0033] The mounting bracket specifically includes a bracket (a basic support component, for mounting various components, and providing an interface for connecting to external mounting supports); a slide assembly 23 (fixed to a certain type of machine gun and capable of sliding back and forth on the bracket), located on one side of the bracket and slidably connected to it for mounting the certain type of heavy machine gun; a right mounting plate 14 and a left mounting plate 19 (for mounting and fixing two buffers), detachably mounted on the bracket and located on both sides of the certain type of heavy machine gun; a buffer 12 (for reducing or eliminating recoil generated by firing at the maximum design frequency), located on the right mounting plate 14 and the left mounting plate 19 and connected to the slide assembly 23; a manual / automatic integrated electric firing assembly 16 (for enabling manual and automatic firing of the machine gun trigger), detachably mounted on one end of the breech cylinder of the certain type of heavy machine gun; and a first-round manual / automatic integrated loader 18 (for first-round belt loading), detachably mounted on the bracket and located on the side of the bracket near the left mounting plate 19; The ammunition counter 21 (counts the number of rounds fired) is detachably mounted on the bracket and located on the side of the bracket near the right mounting plate 14; the anti-shell rebound shield assembly (prevents shells ejected from below the bracket at a certain angle of elevation from rebounding back to the machine gun's recoil mechanism, causing jamming and affecting the normal operation of the device) is detachably mounted on the bracket and located on the side of the bracket away from the heavy machine gun; the ammunition belt guide compartment 17 (guides the ammunition belt from the ammunition box into the chamber and aligns it with the inlet) is detachably mounted on the side of the bracket near the first-shot manual / automatic loader 18; the ammunition belt baffle 15 (device for ejecting empty ammunition belts after firing) is detachably mounted on the side of the bracket away from the ammunition belt guide compartment 17; the quick-release assembly (quick-release and quick-release of commonly used components, reducing the time for assembly, adjustment, maintenance, and replacement), including the connection assembly between the heavy machine gun and the slide assembly 23, the connection assembly between the heavy machine gun and the manual / automatic electric firing assembly 16, and the connection structure of the buffer 12.

[0034] Advantageously, a circular cover plate 1213 is fixedly provided at the end of the outer casing 1206 away from the end cap 1205, the spindle rod 1207 passes through the circular cover plate 1213, and the high-precision orientation element 1212 is located between the circular cover plate 1213 and the first buffer element mounting area 1211. The end cap 1205 can be screwed into the external thread on the end face of the outer casing 1206 through its internal thread, effectively adjusting the length of the inner cavity and achieving the purpose of adjusting the preload.

[0035] Advantageously, the end of the spindle rod 1207 away from the end cover 1205 is fixedly provided with a mounting positioning hole 1203. The mounting positioning hole 1203 cooperates with the locking journal of the machine gun. When the impact recoil occurs, the spindle rod is pushed by the axis of the recoil force, which drives the compression and extension of the elastic element inside the buffer, thereby achieving the buffering effect.

[0036] Advantageously, a fixing screw 1215 is provided at the end of the mandrel 1207 away from the mounting positioning hole 1203. The mandrel 1207 can be adjusted to a suitable position by screwing the internal thread of the positioning partition flange 1214 into the external thread of the mandrel 1207, thereby adjusting the axial length of the first buffer element mounting area 1211 and reducing the axial length to achieve a compression effect. The corresponding preload can be adjusted as needed. For the positioning partition flange 1214, which rotates internally to adjust the axial distance, after adjustment, the fixing screw 1215 on the left side is used to tighten the adjusted positioning partition flange and the mandrel 1207 through flat washers and spring washers. If it is necessary to enhance the loosening effect, a suitable thread-locking adhesive can be applied to the outer surface of the fixing screw 1215.

[0037] Advantageously, a mounting and positioning surface 1204 is fixedly provided on one side of the outer casing 1206. The right-side buffer and the left-side buffer are respectively connected to the fixing assembly through the mounting and positioning surface 1204, and the mounting and positioning hole 1203 is connected to the sliding assembly. Positioning and connection with the buffer fixing plate is achieved through the mounting and positioning surface 1204, limiting movement in three directions: left-right, up-down, and front-back. Fixing and connection with the mounting hole of the fixing plate is achieved through screws, thereby realizing the positioning and tightening of the buffer fixing part. For the spindle rod that extends and retracts along the axis, it cooperates with the support shaft through the mounting and positioning hole 1203, and then uses a shaft retaining ring for axial limiting, realizing the quick installation and disassembly of the buffer.

[0038] Advantageously, there are two buffers 12, a right buffer and a left buffer, which are used in conjunction; the fixing component is a mount for a certain type of heavy machine gun, and the sliding component is connected to the gun body of the certain type of heavy machine gun. Advantageously, the axes of the right buffer and the left buffer are coplanar with the rifling of the certain type of heavy machine gun.

[0039] By rationally designing the layout of the buffer 12 and selecting a structure in which the axis of the buffer 12 is coplanar with the direction of the recoil force generated by the bullet firing from the barrel, the recoil force and the buffer force are highly consistent, achieving the cancellation and balance of the recoil force and the buffer force, avoiding the bending moment generated by the impact recoil. At the same time, the layout of the two buffers distributed on both sides of the machine gun reduces the load on a single buffer within the limited structural space, enhances the stability of the buffer force, and makes the firing process smoother. The design layout of the buffer 12 on both sides of the machine gun, with symmetrical distribution, balances the recoil force, effectively reduces the impact, and improves the stability and accuracy of the firing.

[0040] A new type of shock absorber testing fixture with wide temperature range and all-weather operation includes a fixed upper cylinder 31, a fixed lower seat 34 on one side of the fixed upper cylinder 31, and flanges of appropriate size at the ends of the fixed upper cylinder 31 and the fixed lower seat 34 that are close to each other. The fixed upper cylinder 31 and the fixed lower seat 34 are connected together by screws 32 and nuts 33 in conjunction with the flanges. A tension connecting seat 35 is fixedly provided at the end of the fixed lower seat 34 away from the nut 33.

[0041] Advantageously, the fixed upper cylinder 31 and the fixed lower seat 34 are provided with a placement space for placing the buffer 12; the fixed lower seat 34 is provided with a side fixing screw 36 on its periphery, and the tension connecting seat 35 is provided with a tension connecting pin 37; the side fixing screw 36 is adapted to the mounting positioning surface 1204, and the tension connecting pin 37 is adapted to the mounting positioning hole 1203.

[0042] Testing equipment: electro-hydraulic servo fatigue testing machine; testing fixtures.

[0043] The buffer 12 is installed in the tooling and is engaged with the mounting and positioning hole 1203 of the buffer by the outer cylindrical surface of the tension connecting pin 37, and the shaft is limited by a retaining ring.

[0044] The mating surface of the tension connecting seat 35 is cylindrical. It is installed and clamped on the tensile movable end of the testing machine. The fixed lower seat 34 mates with the mounting positioning surface 1204 and is fastened on the side with side fixing screws 36. The fixed upper cylinder 31 limits the mounting positioning surface 1204 of the buffer 12 through the end face and is fastened with circumferential screws.

[0045] Please see Figure 7 This is a schematic diagram of dynamic fatigue testing and force-displacement hysteresis curves.

[0046] The upper outer cylindrical surface of the fixed upper cylinder 31 mates with the fixed end clamp of the testing machine. The buffer undergoes 10,000 fatigue tests at 10 Hz to obtain its displacement hysteresis curve. Figure 7 It can be seen that its mechanical properties and cushioning effect remain good throughout.

[0047] Furthermore, in terms of the buffer structure design, a structural layout is constructed where the high-precision directional element on the right side matches the outer diameter of the spindle rod, and the large outer diameter of the left-side partition flange matches the clearance between the inner hole and the inner cavity. This forms a combination of high-precision fixed-position guidance and sliding clearance positioning to meet the stiffness and stability requirements under impact loads, thereby ensuring the linear accuracy and parallelism of the buffer's extension and retraction. The machining and assembly accuracy of structural components are also important foundations for ensuring accuracy. For example, the coaxiality of the internal thread of the positioning partition flange with the large outer diameter surface, and the coaxiality of the mating surface of the spindle rod guide element with the rotating surface of the left-side external thread.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0049] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A new type of shock absorber with wide temperature range and all-weather operation, characterized in that: The device includes an outer casing, within which are provided a first buffer element mounting area and a second buffer element mounting area, which are separated by a positioning partition flange; a mandrel is detachably mounted within the outer casing; and a high-precision orientation element is provided on the periphery of the mandrel. One end of the outer casing is provided with an end cap, and a plurality of set screws are provided around the periphery of the end cap. Sealant is provided at the connection between the end cap and the outer casing. The end of the mandrel away from the end cover is fixedly provided with a mounting positioning hole; The end of the mandrel away from the mounting positioning hole is provided with a fixing screw. The internal thread in the middle of the positioning partition flange engages with the external thread of the mandrel to adjust the axial length of the first buffer element mounting area. There are two buffers, namely a right buffer and a left buffer, which are used in conjunction with each other; a mounting and positioning surface is fixedly provided on one side of the outer shell, and the right buffer and the left buffer are respectively connected to the fixed component through the mounting and positioning surface, and the mounting and positioning hole is connected to the sliding component; The fixed component is a mount for a certain type of heavy machine gun, and the sliding component is connected to the gun body of the certain type of heavy machine gun.

2. The novel wide-temperature, all-weather buffer according to claim 1, characterized in that: A circular cover plate is fixedly provided at one end of the outer shell away from the end cap, the spindle rod passes through the circular cover plate, and the high-precision orientation element is located between the circular cover plate and the first buffer element mounting area.

3. The novel wide-temperature, all-weather buffer according to claim 1, characterized in that: The axes of the right-side buffer and the left-side buffer are coplanar with the rifling of the heavy machine gun.

4. A wide-temperature, all-weather novel buffer testing fixture, used for testing the wide-temperature, all-weather novel buffer as described in any one of claims 1-3, characterized in that: The device includes a fixed upper cylinder, a fixed lower seat on one side of the fixed upper cylinder, and flanges of suitable size at the ends of the fixed upper cylinder and the fixed lower seat that are close to each other. The fixed upper cylinder and the fixed lower seat are connected together by screws and nuts in conjunction with the flanges. A tension connecting seat is fixedly provided at the end of the fixed lower seat away from the nut.

5. The novel wide-temperature, all-weather buffer testing fixture according to claim 4, characterized in that: The fixed upper cylinder and the fixed lower seat are provided with a placement space for placing the buffer; the fixed lower seat is provided with side fixing screws on its periphery, and the tension connecting seat is provided with a tension connecting pin; the side fixing screws are adapted to the mounting positioning surface, and the tension connecting pin is adapted to the mounting positioning hole.

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