Mouse car. Drawing, description

PERSONAL TRANSPORT: GROUND, WATER, AIR
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Mouse car. Personal transport

Personal transport: land, water, air

Directory / Personal transport: land, water, air

Leafing through the "Modelist" file for 1975, I noticed an article in No. 3 about the Cheburashka car, built by young technicians from Tbilisi. I liked the car, I decided to make one for my kids.

But, taking "Cheburashka" as a basis, I still had to assemble the little car in my own way (Fig. 1, 2), based on my own capabilities and skills.

Rice. 1. Car "Mouse" (click to enlarge): 1 - steering bar, 2 - seat, 3 - air intake, 4 - lights, 5 - front flashers, 6 - headlights, 7 - decorative grille, and casing of control cables

Rice. 2. Vehicle layout (click to enlarge): 1 - clutch pedal, 2 - steering column, 3 - steering bar, 4 - brake pedal, 5 - carburetor throttle control pedal, 6 - brake drum, 7 - sprocket, 8 - adjustable control cable stops, 9 - brake drum differential drive, 10 - clutch pedal retainer

The frame of a two-seater machine, called the "Mouse", was welded from thin-walled steel pipes. The front axle (Fig. 3) was assembled from a beam, two lugs and turning units of the front wheels. The trunnions are axles fitted to the pivot bushing at an angle of 98° and welded to it. The swivel arm is curved from 1,5 mm thick sheet steel; it is attached to the pivot bushing by welding at an angle of 110°. The steering rings at the ends of the swing arms are cut from Ø 12 mm steel pipe.

The pivot bushings are equipped with bronze bearing bushings, through which the kingpin is passed, pivotally connecting the bushing with the eye of the front axle.

Rice. 3. Front axle (click to enlarge): 1 - eye, 2 - pivot bushing, 3 - support bushing, 4 - trunnion axle, 5 - bearing 202, 6 - bearing 201, 7 - M12 nut, 8, 15 - stuffing box washers , 9 - wheel hub, 10 - M8 bolt, 11 - wheel disk, 12 - V-25 3,5x5,13 tire, 13 - kingpin, 14 - spacer sleeve, 16 - swing arm, 17, 18 - frame beams

Wheel hubs - steel, turned. Each contains two bearings (202 and 201) covered with stuffing box washers.

The hub is fixed on the trunnion axis with a nut. A spacer sleeve is inserted between the bearings.

Wheel disks are assembled from halves extruded from a steel sheet S = 1,5 mm on a lathe using a mandrel and a roller. To fasten the disk to the hub, four bolts are welded to the latter with heads.

The lugs of the front axle are connected to the beam at an angle of 98°, while the pivots are tilted back by 12°. The accuracy of setting the angles during welding was ensured by the use of templates and spacers.

The rear axle is composed of a driving (Fig. 4) and driven (Fig. 5) half-bridges. The basis of the first is a steel tubular beam, a bearing support is welded to it. A brake disc is attached to the support with three bolts. The half-axle runs inside the half-bridge beam; the hub, machined from steel, is pressed onto the axle shaft shank, and in addition, it is fixed with a key and castle nut. On the opposite shank of the axle shaft, the flange of the driven sprocket is mounted with an interference fit and fastened in the same way. The sprocket itself (Z=30) is cut out of a 3 mm thick steel sheet and screwed to the flange with three bolts.

Rice. 4. Rear driving half-axle (click to enlarge): 1 - M12 nut, 2 - key, 3 - hub, 4 - M8 bolt with a cylindrical head, 5 - M8 bolt, 6 - wheel disk, 7 - V-28 3,5 tire, 5x8, 9 - brake drum, 10 - support brake disc, 6 - M11 bolt, 12 - bearing support, 13 - half-bridge beam, 14 - drive axle shaft, 202 - bearing 15, 30 - driven sprocket (Z=16), 6 - M17 bolt, 18 - flange, 12 - M19 nut, 20 - key, 201 - bearing 21, XNUMX - bearing support

Rice. 5. Rear driven half-axle (click to enlarge): 1 - tire B-28 3,5X5, 2 - wheel disk, 3 - M8 bolt, 4 - M8 bolt with a cylindrical head, 5 - hub, 6 - gland washer, 7 - nut M12, 8 - axle shaft, 9 - bearing 201, 10 - bearing 202, 11 - brake drum, 12 - brake disc, 13 - brake disc mounting flange, 14 - M6 bolt, 15 - rear axle beam

Driven (right) half-bridge. Its basis is a beam with a welded flange for attaching a brake disc. The latter is joined to the flange with three bolts. The wheel half shaft is pressed into the half axle beam and fixed with two through rivets. Two bearings are located on the axle - 202 and 201, and bearing 202 is pressed into a pre-bored hole in the brake drum with an outer ring, and bearing 201 is pressed into the hole of the hub, which is connected to the brake drum with three bolts.

Engine "Mouse" from a motorbike, type D-5.

The motor mount (Fig. 6) for the engine is welded from steel pipes with an external diameter of 18 mm. It consists of a front support and a rear pillar, to which are attached lugs cut from a steel sheet. Brackets are bolted to the standard engine mounts. The chain tension adjustment is provided - with a bolt, it, resting against the bracket pin, moves the engine along the slots in the lugs in the vertical direction. The carburetor is coupled to the engine with an adapter pipe, since the engine is "littered" back. The fuel tank with a capacity of 2 liters is located under the hood.

Rice. 6. Engine installation (click to enlarge): 1 - front motor mount, 2 - rear motor mount, 3 - M8 nut, 4 - front engine mount bracket, 5 - front lug, 6 - K-346 carburetor, 7 - adapter pipe , 8 - D-5 engine, 9 - rear engine mounting bracket, 10 - rear eye, 11 - M8 nut, 12 - rear axle beam, 13 - M6 adjusting bolt, 14 - frame side member, 15 - rear frame cross member

Steering (Fig. 7). Its main assembly is a steering column with a steering arm welded at the end, curved from a one and a half millimeter steel sheet. It is connected to the swivel arms of the front wheels by rods. The upper end of the column ends with a closed steering wheel (pipe Ø 12 mm). There is also a steering bar with a dashboard. The steering column rotates in two textolite bearings: the first is mounted on the front beam of the frame, and the second on the rack. Both are secured with steel plates. Longitudinal displacement is prevented by thrust rings.

Rice. 7. Vehicle controls (click to enlarge): 1 - steering wheel, 2 - steering column, 3 - bearing housing, 4 - thrust rings, 5 - steering column post, 6 - steering arm, 7 - pedal levers, 8 - pedals brake and clutch, 9 - brake cable tension equalizer, 10 - adjusting stops, 11 - front cross member, 12, 19 - bearing housings, 13 - bushings for fastening duplicate pedals, 14 - rings, 15 - accelerator pedal bushing, 16 - accelerator pedal , 17 - brake pedal shaft, 18 - clutch pedal shaft

A threaded sleeve is provided for adjusting the length of the tie rod.

All steering joints have rubber bushings. The angle of rotation of the wheels - 30 °.

Clutch and brake pedals (Fig. 7) - made of steel pipes Ø 12 mm. The pedal shafts are fixed in textolite bearings mounted on the front cross member of the frame and spars. The gas pedal is a XNUMXmm steel plate welded to the hub. Its axis is the brake pedal shaft.

Control cables - motorcycle, with adjustable threaded stops. The brake cables are connected to the brake drums through a tension equalizer. The machine provides for the installation of additional pedals for the instructor, for which steel bushings are welded to the pedal shafts.

The body of the car is wooden. I assembled it with glue and screws from 7mm plywood (sheathing), two longitudinal rails and two frames. Outside, pasted over with fiberglass on epoxy resin, followed by putty, primer and painting with nitro enamel. The front wheels were covered from the inside with mudguards made of sheet steel 1 mm thick. The seats are made of pipes Ø 15 mm and plywood, on top they are covered with foam rubber and artificial leather. He even provided for adjusting the position of the seats depending on the height of the driver and passenger: longitudinal movement of the seats along the rails with fixation in the selected position with stoppers.

The car's electrical appliances are powered by a battery assembled from twelve "373" cells, these are four headlights (from a bicycle), and sidelights, and direction indicators (motorcycle type), and a brake light, and a sound signal.

The instrument panel, on which the speedometer, headlight and turn signal switches, signal button and control lamps are mounted, is installed in the steering bar. The body of the latter is pasted on a blank of papier-mâché, with subsequent reinforcement of the surface with fiberglass.

The frame and body of the car are interconnected by four threaded studs, so to dismember the car, it is enough to unscrew the four wing nuts, disconnect the fuel line and the electrical connector.

In conclusion, I will add that I started work on the car in 1977, finished in 1979. The total time spent on construction (excluding turning work) is about 380 hours. The car turned out, it seems to me, durable, in any case, during the period of operation, no troubles happened to it.

Author: V.Veselov

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