Bridge layer hydraulic cylinder protection device

Abstract

This utility model relates to protective equipment for military tracked vehicles, specifically ballistic protection for hydraulic cylinders, and can be used in the design of bridge layers. The hydraulic cylinder protection device comprises an armored casing, clamps, and a bolted connection. A novel feature is that each clamp is designed to be quickly disconnected with a C-shaped hook and bolted connection. The armored casing is equipped with polymer gaskets on the inside and handles and end stops on the outside. The technical result is reduced installation and removal time for the armored casing of the bridge layer hydraulic cylinder. 3 fig.

Description

[0001] The utility model relates to the means of protection of military tracked vehicles, in particular to the ballistic protection of hydraulic cylinders, and can find application in the design of bridge layers.

[0002] A device for protecting an excavator hydraulic cylinder is known (RU, patent No. 216641 for utility model “Device for protecting an excavator hydraulic cylinder rod from dust” under clause 2022133285 dated 12 / 19 / 2022, F15B 15 / 20), which is made in the form of a corrugated tube made of a polymer material with ring magnets and thrust projections.

[0003] A drawback of this protection device is the complete lack of protection for the hydraulic cylinder body from impact loads, such as falling rock. Furthermore, this device cannot be used to protect hydraulic cylinders on military tracked vehicles.

[0004] The prototype chosen was the protection system for the hydraulic system components of a tank-launched bridge (Product 633. Technical Description and Operating Instructions. Part I. 633TO, 1995, pp. 7, 166, Fig. 92, p. 97). This protection system consists of armored casings mounted on the outside of the hydraulic cylinders and secured to them with clamps. The armored casings are installed during the bridgelayer's preparation for combat use.

[0005] The disadvantage of the prototype for protecting the hydraulic system components of a tank bridgelayer is the long installation time of the armor casing due to the large number of bolted connections and the low level of ballistic protection, which is provided only against small arms bullets of 5.45 mm and 7.62 mm caliber.

[0006] The technical result that the utility model is aimed at achieving is to increase the efficiency of using armored casings in combat conditions.

[0007] The technical result is achieved in that the hydraulic cylinder protection device, containing an armored casing, clamps and a bolted connection, according to the utility model, the armored casing is made quickly removable from a special steel of high hardness and thickness, providing ballistic resistance to large-caliber armor-piercing bullets, and the clamps are made quickly removable with a C-shaped hook and a bolted connection, while the armored casing is equipped with polymer gaskets on the inside, and handles and end stops on the outside.

[0008] The clamps are quick-release with a C-shaped hook and a bolted connection, while the armored casing is equipped with polymer gaskets on the inside, and handles and end stops on the outside.

[0009] The analysis of the distinctive features showed the following:

[0010] The casing is made of special high-hardness steel and at least 20 mm thick, providing ballistic resistance against large-caliber armor-piercing bullets of 12.7 mm and 14.5 mm caliber;

[0011] The clamps are made of quick-release type with a C-shaped hook and bolt connection, which reduces the time of installation and removal of the armor casing;

[0012] The armored casing is equipped with polymer gaskets on the inside due to its large weight of more than 80 kg, which increases the coefficient of friction (rubber on metal) and prevents the armored casing from slipping along the hydraulic cylinder body;

[0013] The handles are made on the outside, allowing you to carry and install the armor casing;

[0014] The implementation of end stops on both sides of the armor casing prevents its axial movement along the hydraulic cylinder during the movement of the bridge layer over rough terrain.

[0015] The essence of the utility model is explained by drawings, where

[0016] Fig. 1 - view of the left side of the bridge layer with the armored casing installed on the hydraulic cylinder;

[0017] in Fig. 2 - cross-section A-A of the hydraulic cylinder and armor casing;

[0018] Fig. 3 - top view of the armor casing, the hydraulic cylinder is not shown.

[0019] The bridgelayer with an assault bridge is designed to create a quickly erectable bridge crossing in combat situations, allowing armored vehicles to cross ditches, canals, narrow rivers, and other obstacles during combat. Hydraulic cylinders power the bridgelayer's front support. Disabling a hydraulic cylinder (from bullet or shrapnel damage) prevents the assault bridge from being erected, leading to the failure of the combat mission.

[0020] Previously used armor casings required a long installation time due to the large number of bolted connections and provided a low level of ballistic protection - only against 5.45 mm and 7.62 mm small arms bullets.

[0021] The increased efficiency of using armor casings in combat conditions is ensured by their quick removal and the use of special steel with high hardness and thickness, providing ballistic resistance to large-caliber armor-piercing bullets.

[0022] The protection device for the hydraulic cylinder of the bridge layer 1 (Fig. 1-3) contains an armored casing 2, quick-release clamps 3, bolted connections 4, polymer gaskets 5 glued to the inner side of the armored casing 2, to which, in turn, handles 6 are rigidly attached on the outer side, and limiters 7 are attached to the end surfaces.

[0023] To install the protection device on the hydraulic cylinder 8 of the bridge layer 1, it is necessary to bring the armor casing 2 by the handles 6 to the bridge layer 1 and, using two crew members, install it on the body of the hydraulic cylinder 8 so that the end stops 7 do not allow axial movement of the armor casing 2. Insert the C-shaped hooks 9 of the quick-release clamp 3 into the mating brackets 10 of the armor casing 2 and tighten the bolted connection 4, whereby the polymer gaskets 5, when deformed at the moment of tightening, will create increased friction between the hydraulic cylinder 8, the quick-release clamps 3 and the armor casing 2.

[0024] Armor casing 2 is installed on the outside of hydraulic cylinder 8.

[0025] The device with quick-release C-shaped hooks significantly reduces the time of installing the armor casing on the hydraulic cylinder, which is important in combat conditions for quickly increasing the ballistic resistance of the bridge layer hydraulic cylinder.

[0026] Thus, the hydraulic cylinder protection device improves the efficiency of using armored casings in combat conditions.

Claims

A protection device for a bridge-layer hydraulic cylinder, comprising an armored casing, clamps and a bolted connection, characterized in that each clamp is made quick-release with a C-shaped hook and a bolted connection, while the armored casing is equipped with polymer gaskets on the inside and handles and end stops on the outside.

Images