CN104653913B - Sliding plate type exhaust pipe joint for small engine test bench - Google Patents

Abstract

The invention provides a slide-type exhaust pipe joint for a small engine test bench, which is composed of a slide plate 1 , a slide plate positioning block 2 , an exhaust pipe movable joint 7 and a sealing gasket 8 . The slide plate positioning block 2 is welded to the front end of the exhaust pipe movable joint 7, and the slide plate 1 can move in the chute of the exhaust pipe movable joint 7 so that the holes in the middle of it can be aligned with the exhaust ports of different types of engine cylinder heads in different positions. Alignment, and the sealing effect is realized by the sealing cone surface of the chute of the movable joint 7 of the exhaust pipe and the sealing gasket 8. The sliding plate 1 is fixed with the bolt 3 on the sliding plate positioning block 2, and screwed into the rear end of the exhaust pipe seat of the dynamometer. The bolt 4 makes the movable joint 7 of the exhaust pipe push the slide plate 1 forward to lean against the end face of the exhaust port seat of the engine cylinder head. No need to replace the exhaust pipe joint of the engine test bench, it can be used for bench tests of different types of engines, the operation is simple and easy, and the work efficiency is improved.

Description

A slide-type exhaust pipe joint for a small engine test bench

technical field

The invention relates to a slide-type exhaust pipe connector for a small engine test bench, which can be used for different types of engine performance tests.

Background technique

When testing a small engine bench, it is often necessary to connect the outlet of the exhaust port on the engine cylinder head with the exhaust pipe joint on the test bench so that the exhaust gas can be discharged into the underground flue. The exhaust pipe seat of the dynamometer is fixed on the test bench of the dynamometer, and the distance from the center of the crankshaft to the center of the exhaust hole on the cylinder head is different for different types of engines. It is necessary to replace the exhaust pipe joint corresponding to the engine model, and the disassembly and assembly are relatively cumbersome.

Contents of the invention

The present invention aims at the deficiencies in the above-mentioned prior art, and its technical solution to solve the problem is: the slide-type exhaust pipe joint is only composed of a slide plate 1, a slide plate positioning block 2, a sealing gasket 8, and an exhaust pipe movable joint 7, and the exhaust pipe The chute A at the front end of the movable joint 7 realizes the sealing of the exhaust gas of the engine together with the sliding plate 1 and the sealing gasket 8 according to its sealing cone surface a and sealing plane b. Skateboard 1, after the hole H on it is aligned with the exhaust port on the engine cylinder head, fix the slideboard 1 through the bolt 3 on the slideboard positioning block 2, and screw the bolt 4 at the rear end of the movable joint 7 of the exhaust pipe to make the slideboard 1 The end surface G of the boss is against the end surface of the exhaust port seat of the engine cylinder head.

The beneficial effect of the invention is that the exhaust pipe joint does not need to be replaced specially according to different models of engines. Easy to use and improve work efficiency.

Description of drawings

Fig. 1 is a front view of a slide-type exhaust pipe joint for a small engine test bench of the present invention.

Fig. 2 is a side view of a slide-type exhaust pipe joint for a small engine test bench of the present invention.

Fig. 3 is a front view of the movable joint 7 of the exhaust pipe of the present invention.

Fig. 4 is a side view of the movable joint 7 of the exhaust pipe of the present invention.

Fig. 5 is a top view of the movable joint 7 of the exhaust pipe of the present invention.

Fig. 6 is a B-B sectional view of the movable joint 7 of the exhaust pipe of the present invention.

Fig. 7 is a front view of the skateboard 1 of the present invention.

Fig. 8 is a C-C sectional view of the slider 1 of the present invention.

Fig. 9 is an A-A sectional view of the skateboard 1 of the present invention.

Fig. 10 is a schematic diagram of the skateboard positioning block 2 of the present invention.

In the figure, 1. Skateboard, 2. Skateboard positioning block, 3. Bolt, 4. Bolt, 5. Bolt, 6. Test bench exhaust pipe seat, 7. Exhaust pipe movable joint, 8. Gasket.

detailed description

There is a chute A at the front end of the movable joint 7 of the exhaust pipe, through its sealing cone surface a and sealing plane b, and the sliding plate 1 and the sealing gasket 8 to realize the sealing of the exhaust gas of the engine; the upper part of the movable joint 7 of the exhaust pipe has a groove C, Screw the bolt 5 into the exhaust pipe seat 6 and embed it in the groove C above the exhaust pipe movable joint 7, so that the exhaust pipe movable joint 7 is fixed on the exhaust pipe seat 6 of the test bench.

The slide plate 1 can move left and right in the chute A of the movable joint 7 of the exhaust pipe to adapt to the exhaust ports of the cylinder head at different outlet positions of different types of engines. The bolt 3 on the slide plate positioning block 2 fixes the slide plate 1 and the movable joint 7 of the exhaust pipe.

Screw in the bolt 4 at the rear end of the movable joint 7 of the exhaust pipe, push the slide plate 1 so that the end surface G of the boss is against the end surface of the exhaust port seat of the engine cylinder head, so that the engine exhaust gas passes through the hole H in the middle of the slide plate 1, and the movable joint of the exhaust pipe Channel D of 7 and the exhaust pipe seat 6 of the test bench enter the underground flue of the laboratory.

Claims (1)

1. a kind of put-put test-bed with slide type exhaust fitting it is characterised in that only by slide plate (1), slide plate position Block (2), sealing gasket (8), aerofluxuss pipe movable joint (7) are constituted, and aerofluxuss pipe movable joint (7) front end chute (A) seals according to it The conical surface (a) and sealing plane (b) realize the sealing to engine exhaust, slide plate locating piece together with slide plate (1), sealing gasket (8) (2) be soldered to the front end face of aerofluxuss pipe movable joint (7), moving slide board (1) so as on hole (H) and engine cylinder cap On aerofluxuss road junction align after, by bolt (3) fixed glides (1) on slide plate locating piece (2), be screwed into aerofluxuss pipe movable joint (7) bolt (4) of rear end makes the raised head face (G) of slide plate (1) lean engine cylinder cap aerofluxuss road junction seat end face.