RU202666U1 - PROTECTIVE SHIELD OF AIR HYDRAULIC AMPLIFIER - Google Patents

Abstract

The utility model relates to the automotive industry for vehicle transmissions, namely, to protect the pneumohydraulic clutch booster (PSU) from external influences. The protective screen of the pneumohydraulic booster (1) is made in one piece and consists of a base (2) and side walls (3) and (4). The front part of the base (2) has a curved part (5), made L-shaped, and in the middle part of the base (2) there are ventilation holes (6), which are located under the hole (not shown) for air discharge from the pneumohydraulic booster (1) and are made by stamping so that the air discharge from the pneumohydraulic booster goes through the formed "pocket". In addition, the L-shaped shape of the front part of the base (2) is designed to prevent the ingress of aggressive elements of the road surface, which can lead to breakage of the pneumohydraulic booster. On the side walls (3) and (4) there are cutouts (7), which are designed to clean the inside of the walls from getting dirt, and also serve for the unhindered approach of the tool when installing the protective screen. In the front part and in the rear upper part of the side walls (3) and (4) there are legs (8) and (9) with holes for fastening. In this case, the legs (8) are directed towards each other and through the holes in them are attached with bolts (10) to the pneumohydraulic amplifier (1), and the legs (9) are directed in opposite directions from each other, to which for a snug fit to the crankcase gearbox (11), the bosses (12) are rigidly fixed by welding, with holes through which they are attached to the gearbox housing (11) with bolts (13). Legs (8) perform a dirt-protecting function, providing protection of the pneumohydraulic booster from dirt, thereby maintaining its reliability in operation. The problem was solved, which made it possible to ensure the reliability of the operation of the pneumohydraulic booster when operating on a vehicle. 3 ill.

Description

The utility model relates to the automotive industry for vehicle transmissions, namely, to protect the pneumohydraulic clutch booster (PSU) from external influences.

Known protective screen containing a frame, a drive mechanism, a protective element and an electric drive, and the frame, including two transverse and two longitudinal armored beams, is equipped with brackets for attachment to the vehicle, and in the holes of the cantilevers of the longitudinal beams with the possibility of axial rotation placed and fixed the ends of the leading shaft and guide axis of the drive device with gear wheels rigidly mounted on them, the teeth of which are inserted into rectangular holes made along the edge of the protective element in the form of a closed tape made of bulletproof elastic fabric, perforated with horizontal viewing slots, and the electric drive contains an electric motor, the shaft of which is mated by means of a coupling with the output end of the drive shaft, receiving power from a power source through a plug connector, a speed regulator, a signal lamp, a fuse and a switch (see patent for invention RU No. 2605803, IPC F41H5 / 26 (2006/01), B60J1 / 14 (2 006.01), published on December 27, 2016).

Known protective screen of a vehicle containing a rectangular box-shaped frame with two flat, perforated horizontal viewing slots placed in it with the possibility of vertical reciprocating movement and equipped with annular-section guide bushings along the vertical ends, rectangular armor plates, the position of which is fixed by means of stepladders-guides threaded connection, and the horizontal ends are rigidly mated by helical springs with the inner surfaces of the horizontal flanges of the frame, while the total stiffness of the springs of the armor plates are different, the attachment points are support posts, some ends of which are rigidly attached to the vertical walls of the frame with the help of thumbscrews, while others the ends are hinged by means of screws through support feet are attached to the vehicle body (see patent for utility model RU No. 153942, IPC F41H5 / 26 (2006.01), published on 08/10/2015).

Known is a protective screen containing a panel with load-bearing elements, units for hanging a protective screen on the car frame and elements for fixing the protective screen in the working position, the load-bearing elements of the panel are made in the form of transverse stiffeners, the protective screen contains at least two units for hanging on the car frame , each of which is made in the form of a bracket and a spring pivotally mounted on a transverse stiffener, the other end of which is hingedly connected to the bracket, and each element for fixing the protective screen in the working position is made in the form of an axis installed on the outside of the transverse stiffener for interaction with devices fixation on the car frame, in addition, in the nodes of the protective screen hinge on the car frame, a pneumatic tension spring is used, and the transverse stiffeners are located along the edges of the panel (see utility model patent RU No. 104127, IPC B61D17 / 08 (2006.01), published 10.05. 2011).

Known protective screen for the neutralizer of the exhaust system of a car, consisting of upper and lower screens installed relative to the neutralizer and the bottom of the body with a gap, the upper screen is installed on the bottom of the body, the upper screen is made in the form of a spatial element repeating the shape of the bottom of the body, with the possibility of attachment on the bottom of the body with replaceable fastening elements, the lower screen is made in the form of a box having a semi-oval shape in cross section, covering most of the neutralizer, the lower screen is installed on the car frame, while the upper and lower screens are installed between themselves with a gap (see the patent for the floor model RU No. 45680, IPC V60K13 / 04 (2000.01), F01N7 / 14 (2000.01), published on May 27, 2005).

The known solutions in most cases do not provide reliability, that is, when the vehicle is operated in difficult off-road conditions, part of the transmission is in contact with the road surface - with mud, sand, icy snow, and in such conditions there is a high probability of damage to the elements of the pneumohydraulic clutch booster and the joints with it tubes, and as a result of damage, the vehicle remains without the clutch release drive system and thus there is no possibility of further movement.

The problem to be solved by the claimed technical solution is to ensure reliable operation of the pneumohydraulic booster during operation on a vehicle.

The problem is solved by the fact that the protective screen of the pneumohydraulic amplifier, consisting of a base and side walls, while the front part of the base has a curved part made in an L-shape, and ventilation holes are located in the middle part of the said base, in addition, cutouts are made on the side walls , moreover, in the front part and in the rear upper part of the side walls there are tabs with holes for fastening, while the tabs in the front part of the side walls are directed towards each other, and in the rear upper part - in opposite directions from each other.

The set of distinctive features allows to ensure reliable operation of the pneumohydraulic booster during operation on a vehicle, namely to protect the pneumohydraulic clutch booster from damage and dirt.

The essence of the utility model is illustrated by the following drawings:

Fig. 1 - A protective screen of a pneumohydraulic amplifier, general view (in isometric view);

fig. 2 - the same, general view, assembled, side view;

fig. 3 - the same, general view, assembled, bottom view.

The protective screen of the pneumohydraulic booster 1 is made in one piece and consists of a base 2 and side walls 3 and 4. The front part of the base 2 has a curved part 5 made in an L-shape, and in the middle part of the base 2 there are ventilation holes 6. The ventilation holes 6 are located under a hole (not shown) for air discharge from the pneumohydraulic booster 1 and made by stamping so that the air discharge from the pneumohydraulic booster 1 goes through the formed "pocket", while, if the vehicle moves forward, the dirt slides along the protective screen without getting through the ventilation holes in the inside of the protective screen, thanks to the ventilation holes 6, thereby protecting the pneumohydraulic booster from dirt, ensuring its reliable operation. In addition, the L-shaped shape of the front part of the base 2 is also designed to prevent the ingress of aggressive elements of the road surface that can lead to breakage of the pneumohydraulic booster, thereby ensuring the reliability of the pneumohydraulic booster. On the side walls 3 and 4, there are cutouts 7, which are designed to clean the ingress of dirt into the inside of the walls, thereby ensuring reliability during operation, as well as the cutouts 7 serve for the unhindered approach of the tool when installing the protective screen. In the front part and in the rear upper part of the side walls 3 and 4, legs 8 and 9 are made with holes for fastening. In this case, the legs 8 are directed towards each other and, through the holes in them, are attached with bolts 10 to the pneumohydraulic amplifier 1, and the legs 9 are directed in opposite directions from each other, to which, for a snug fit to the gearbox housing 11, are rigidly fixed by welding lugs 12, which have holes through which bolts 13 are attached to the gearbox housing 11. The paws 8 perform a dirt-protecting function, protecting the pneumohydraulic booster from dirt, thereby maintaining its reliability in operation.

The principle of operation is as follows.

When the vehicle moves through difficult-to-pass places with high ice drifts, mud or sand, the road surface between the wheels reaches the power unit, on which the pneumohydraulic booster 1 is installed with a protective screen by means of a bolted connection. When moving forward, for example, the dirt rests on the curved part 5 of the base 2 of the protective screen and flows around it from below and on the sides. Dirt slides along surfaces without damaging the elements of the pneumohydraulic booster and the joints of the clutch pipes with the pneumohydraulic booster. When the clutch pedal is depressed, air is freely discharged from the pneumohydraulic booster 1, and the clutch drive is working properly.

If the vehicle is moving in reverse, dirt can get inside the protective screen through the ventilation holes 6, or from the side of the pipes connecting to the pneumohydraulic booster. In this case, the cutouts 7 of the protective screen come into operation - through them the dirt freely comes out.

If the vehicle is moving close to a deep rut and is pulled into the rut, the transmission is hit. The protective screen absorbs the impact on itself, and does not transmit it to the clutch release drive system, keeping the elements of the pneumohydraulic booster 1 intact.

The claimed technical solution allows to ensure the reliability of the structure during operation on the vehicle frame.

The claimed technical solution meets the requirement of industrial applicability and is possible for implementation on standard technological equipment using previously mastered technologies.

Claims (1)

A protective screen of a pneumohydraulic booster, consisting of a base and side walls, while the front part of the base has a curved part made in an L-shape, and ventilation holes are located in the middle part of the said base, in addition, there are cutouts on the side walls, and in the front part and in the rear upper part of the side walls there are tabs with holes for fastening, while the tabs in the front part of the side walls are directed towards each other, and in the rear upper part - in opposite directions from each other.

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