RU2442715C1 - Hand-operated wheeled vehicle - Google Patents

Abstract

FIELD: mechanical engineering.

SUBSTANCE: invention refers to the field of mechanical engineering and in particular to a hand-operated wheeled vehicle. The vehicle includes a sealed wheeled platform with four wheel pairs and a body that can be rotated in relation to it, a tower with the position stabilizing mechanism, support rollers, an engine with the coupling engagement the gear box, a central gear box, a shaft line, a control gear, two mechanisms that ensure movement on both rails, a brake, a wheel buffering system, four spare wheels, a propelling screw, four water propellers, a fold cowl. The shaft line provides transmission of the torque through the bevel gearing of the central gear box to the sun bevel gear and further to each of the two adjacent wheel pairs. Swiveling of the body about the central vertical axle of the wheel platform is performed beginning with the control wheel through the chain drive and bevel gear speed reducer. Swiveling of the wheel pairs is performed when the body is swiveling in relation to the wheel platform with the help of the shaft that is hardly attached to the body and to the driving sprocket of the chain drive. The driving sprocket of the upper chain drive is moving along it to some fixed positions with the help of a hollow rod that is hardly attached to this sprocket and is a part the throw-over gear from the driver's place. The shutdown mechanisms for the water propellers are installed on all the bodies of the inter-wheel differentials of the wheel pairs. The yoke lever provides two fixed positions for the bevel gear: I - for switching on the water propeller by enmeshing the tooth gear with the toothed wheel, II - for switching off the water propeller.

EFFECT: pivoting motions without slipping of the wheel pairs, and simplification of the design of the drives and the wheel pairs.

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Description

The invention relates to wheeled vehicles (KTS) with all leading steered full-circle wheels and a body.

For the prototype, technical solutions were adopted for RF patents No. 22918082003 "Wheel vehicle", No. 23422752008 "Mechanisms of a wheeled vehicle", No. 23904582010 "Swimming equipment of a wheeled vehicle", No. 23921592010 "Central gear of a wheeled vehicle."

The manual control system design contains a pressurized wheel platform with four wheel pairs and a body rotatable relative to it, a tower with a mechanism for stabilizing its position, support rollers, an engine with a clutch and gearbox, a central gearbox, a transmission, a control drive, two mechanisms for ensuring the possibility of movement along two tracks, brakes, cushioning and swimming equipment. The transmission transmits torque from the engine to the wheelsets through the first bevel gears of the central gearbox, the driven wheel of which is connected to the sun bevel gears, then to each wheelset through two bevel gears connected by a shaft to the drive shaft of the differential between the wheelsets. The rotation of the body relative to the central vertical axis of the wheel platform is carried out from the steering wheel with the shaft through a chain transmission and a worm gear to a vertical bevel gear of the central gear. This gear is in constant engagement with the upper bevel gear rigidly connected by the central vertical axis to the casing of the wheel platform. The rotation of all wheelsets in the same direction and at the same angle as the body occurs from the lower bevel gear, which is in constant engagement with the vertical bevel gear of the central gearbox of the body rotation drive during its rotation. In this case, the gear wheel is connected by a pipe to the drive sprockets of two chain gears, which transmit rotation to the rotary columns, ensuring the rotation of the wheel pairs. Swimming equipment includes: four spare wheels, watercraft, one screw propeller and four wheeled water-jet propulsion, folding fairing. Wheel water jets (water jets) have a permanent drive from the leading gears of the interwheel differentials of the wheelsets.

The disadvantages of the prototype are:

- the short duration of the ability of the CCC to move along two tracks;

- the complexity of the drive rotation of the body and wheelsets;

- the lack of the ability to switch the mechanism of turning off the rotation and fixing the two rear wheelsets from the body for the movement of the CCC along two tracks;

- the lack of a mechanism for disabling wheel water cannons when moving the CCC on land.

The technical result of the invention is the provision of non-slip rotation of the wheel pairs in the corners when driving along two tracks, simplifying the design of the body turning drives and the wheelsets, providing control of the turning off mechanism and fixing the two rear wheelsets from the body, and increasing the durability of the wheel water jets.

The claimed design of the KTS contains a sealed wheeled platform with four wheelsets and a body rotatable relative to it, a tower with a mechanism for stabilizing its position, support rollers, an engine with a clutch and gearbox, a central gearbox, a transmission, a control drive, two mechanisms for providing dual-track movement , brakes, wheel cushioning, four spare wheels, a propeller propeller, four water jets, a folding fairing. The transmission transmits torque from the engine to the clutch and gearbox through the first bevel gear of the central gearbox to the sun gear bevel gear. Further, to each two adjacent wheel pairs by means of a pinion shaft to an interwheel differential with a locking mechanism, from which to each wheel pair through another pinion shaft and a driven bevel wheel to a drive shaft of an interwheel differential of wheel pairs. The rotation of the body relative to the central vertical axis of the wheel platform is carried out from the steering wheel through a chain gear and bevel gear, then to the second bevel gear of the central gear, the driven wheel of which is rigidly connected to the wheel platform. The rotation of the wheelsets occurs from a pipe rigidly connected to the drive sprocket by a lower chain transmission and to the body when it is rotated relative to the wheel platform. The drive sprocket of the upper chain drive is moved to the upper I or lower II fixed position with the help of a tubular rod connected to this sprocket and which is part of the drive from the driver’s seat in the body. On all cases of cross-axle differentials of wheelsets, water-jet shutoff mechanisms are installed, consisting of a splined sleeve connected to a driven bevel gear and able to move along the splines of the propeller shaft, a shift bearing coupling freely mounted on this sleeve and a lever arm pivotally connected to the coupling . The fork-lever with a hinged support on the cross-axle differential housing has two fixed positions: I - turn on the water jet, II - turn it off.

The design of the CCC is illustrated by the drawings, which show: in Fig. 1, the kinematic diagram of the transmission and control drive (side view, the right wheel pair is conditionally rotated 90 °, the propeller propeller and fairing in position for movement on land); figure 2 is a kinematic diagram of the transmission (top view without a body); figure 3 is a kinematic diagram of the mechanism for turning off the water jets (front and side views).

In the design of the CCC, the same as the prototype remains unchanged (Fig. 1): a sealed wheel platform 1 with four wheel pairs 2 and a body 3, a tower 4 with a mechanism for stabilizing its position, support rollers 5, an engine with a clutch and a gearbox 6, two mechanisms for ensuring the possibility of movement along two tracks, brakes, depreciation of the wheels, four spare wheels 7, water propeller propeller 8, folding fairing 10.

The differences in the design of the CCC from the prototype are shown in figure 1, 2, 3.

Transmission of the prototype KTS provides a short-term possibility of movement along two ruts when two mechanisms are turned on due to wheel slippage on bends. This reduces the durability of the wheels 2. The proposed transmission design eliminates this drawback by introducing two additional interwheel differentials 11 (in Fig.1, 2 the interwheel differentials are conventionally shown by double bevel gears), between two adjacent front and rear wheel pairs 2. The cases of the interwheel differentials 11 are fixed on a wheeled platform 1. Torque from the engine with clutch and gearbox 6, bevel gear 12 of the central gearbox 13 to the sun gear bevel gear 14 Next to each two adjacent front (right) and rear (left) wheel pairs 2 by means of a gear shaft 15 of the cross-axle differential 11. Then, to each wheel pair 2 through the gear shaft 16 and the driven bevel wheel 17 to the drive shaft 18 of the cross-axle differential 19 . In the event of a slipping of the CTS, it is proposed to use wheel cross-axle differentials 11 with known mechanisms for locking them.

The drive for turning the body is simplified, the prototype includes three gears: chain 20, worm and bevel 21. It is proposed to replace the worm gear with a simpler bevel gear 22. The body is rotated relative to the central vertical axis 23 of the wheel platform 1 from the steering wheel 24 through the chain gear 20 and bevel gear 22. Next, the torque is transmitted to the second bevel gear 21 of the central gear 13, the driven wheel of which is rigidly connected to the wheel platform 1.

Simplified and changed the drive rotation of the wheelsets 2 (Fig. 1) in the same direction and at the same angle as the body 3, when it is rotated relative to the wheel platform 1 by eliminating the prototype of the lower bevel gear included in the design of the central gear 13 meshing with the bevel gear 21 of the body rotation drive, and connecting the pipe 25 of the drive sprocket 26 of the chain transmission 27 with the support 28 of the horizontal shafts in the central gearbox 13, and therefore with the body 3. The rotation of the wheel pairs 2 occurs when the body is rotated flax wheeled platform 1 via a pipe 25 rigidly connected with the body 3 and the drive sprocket 26, a chain transmission 27. With this rotation of the rear wheel pairs occurs in the case of coupling Stars 26 and 28, i.e. in II (lower) position of sprocket 28.

To turn on and off the mechanism for disabling and fixing the two rear wheelsets 2 included in the wheel turning drive, to ensure the movement of the CCC along two tracks, a tubular rod 29 is introduced into the design of the central gearbox 13 (Fig. 1). The drive sprocket 28 of the upper chain gear 30, mounted loosely on the pipe 25, moves along it to the fixed positions I (upper) or II (lower) using a tubular rod 29, rigidly connected to this sprocket and which is part of the switch from the driver's seat in the body 13.

On the prototype, all wheeled water cannons 9 have a non-disconnectable drive from the gear 31 of the interwheel differential 19 of the wheel pairs 2 when moving on land. This reduces the longevity of the water jets. The proposed mechanism for shutting down the water cannon consists of a spline spool sleeve 32, a shift bearing sleeve 33 and a lever lever 34. The sleeve 32 is rigidly connected to the bevel gear 35 and is able to move along the splines along the left end of the shaft 36 of the propeller 40. The sleeve 33 is freely mounted on the sleeve 32, and the inner race of its bearing abuts against the bevel gear 35. The fork-lever 34 is mounted on the hinge support 37 of the cross-axle differential housing 19 and the fork is pivotally connected to the outer race of the coupling bearing 33 The bearing of this coupling eliminates the wear of the fork when turning on the water jet 9. The fork-lever 34 provides the bevel gear 35 with two fixed positions: I - turning the water cannon 9 on by engaging the gear wheel with the gear 31 of the cross-wheel differential 19, II - turning the water cannon off gearing of gears 31 and 35. The water cannons are switched on by the driver at a stopped CCC before entering the water, and the gears are turned off after exiting the water when removing or installing the protective covers 38 and 39. To facilitate turning on the water jet it is allowed to wiggle the hand of the propeller 40, connected by a shaft 36 with a bevel gear 35.

Thus, the proposed design changes KTS eliminate the above disadvantages of the prototype, increasing the reliability and durability of its work.

Claims (1)

A wheeled vehicle containing a sealed wheeled platform (1) with four wheelsets (2) and a body rotatable relative to it (3), a tower (4) with a mechanism for stabilizing its position, support rollers (5), an engine with a clutch and gearbox (6 ) gears, central gearbox (13), transmission, control drive, two mechanisms for providing two-track travel, brakes, wheel cushioning, four spare wheels (7), propeller propeller (8), four water-jet propulsors (9), folding fairing (10) characterized by that
the transmission transmits torque from the engine with the clutch and gearbox (6) through the bevel gear (12) of the central gearbox (13) to the sun gear bevel gear (14), then to each two adjacent wheel pairs (2) via the pinion shaft ( 15) to the interwheel differential (11) with its locking mechanism, from which to each wheel pair (2) through the pinion shaft (16) and the driven bevel wheel (17) to the drive shaft (18) of the wheel interwheel differential (19);
the rotation of the body (3) relative to the central vertical axis (23) of the wheel platform (1) is carried out from the steering wheel (24) through a chain gear (20) and bevel gear (22), then to the second bevel gear (21) of the central gear (13) the driven wheel of which is rigidly connected to the wheel platform (1);
the rotation of the wheel pairs (2) occurs when the body is rotated relative to the wheel platform (1) by means of a pipe (25) rigidly connected to the body (3) and to the drive sprocket (26) of the chain drive (27);
the drive sprocket (28) of the upper chain gear (30), mounted freely on the pipe (25), moves along it to the fixed positions I (upper) or II (lower) using a tubular rod (29), rigidly connected to this sprocket and which is part of the drive switching from the driver's seat in the body (13);
on all cases of cross-axle differentials (19) of wheel pairs (2), mechanisms for disconnecting water-jet propulsion devices (9) are installed, consisting of a spline hub (32) rigidly connected to the bevel gear (35) and able to move along the splines of the shaft (36), bearing the clutch (33), freely mounted on the sleeve (32) and the yoke (34) mounted on the hinge support (37) of the differential housing (19) and pivotally connected by the fork to the outer race of the bearing of the clutch (33), lever fork (34) provides There are two fixed positions for the bevel gear (35): I - engagement of the water jet (9) by engaging the gear (35) with the gear (31), II - disengagement of the jet.

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