CN205908323U - Directional operating mechanism of small -size engine valve rocker - Google Patents

Abstract

The utility model discloses an engine fitting technical field's a directional operating mechanism of small -size engine valve rocker, including the axle, the outer wall of axle has cup jointed the bearing, the outer wall of bearing has cup jointed valve rocker, the screw has been seted up to valve rocker's right -hand member, the inner chamber of screw is pegged graft and is had adjusting bolt, adjusting bolt's outer wall has cup jointed adjusting nut, adjusting nut sets up the top at valve rocker, the utility model discloses an increasing mutually supporting of feather key and guide sleeve, can not taking place the skew when making the clearance adjustment bolt regulation clearance, guarantee the stability of valve rocker mechanism, through increasing the bearing, make valve rocker can not be directly when the motion take place the friction with the outer wall of axle, the life of extension valve rocker and axle through adjusting bolt's setting, makes valve rocker mechanism need not adjust whole mechanism when the adjustment, reduces the loaded down with trivial details nature of adjustment, messenger's regulation convenient and fast.

Description

A kind of valve rocker directional working mechanism of small-sized engine

Technical field

The utility model is related to engine fittings technical field, specially a kind of put-put valve rocker orientation works Mechanism.

Background technology

At present, the valve rocker operating mechanism on the small utility gasoline engine of domestic use is by valve clearance adjusting bolt Through rocker arm shaft seat pin, it is then passed through valve rocker and is fixed on cylinder head, locked with locking nut above rocker arm shaft seat pin, by In the designed spherical shape in valve rocker bottom, rocker arm shaft seat pin bottom is also meeting during dome shape, therefore valve rocker work Around the bottom spheric motion of rocker arm shaft seat pin, its free degree is big, and valve rocker is at work, you can move up and down, again can left and right Swing it is impossible to ensure that valve rocker is making directional swing by its characteristics of motion, such as Chinese Patent Application No. is 200820051056.x valve rocker directional working mechanism of small-sized engine, particular content is: a kind of put-put valve shakes Arm directional working mechanism, the middle part of two valve rockers of this engine extends transversely through and is provided with a rocker arm shaft, two valve rockers Between be provided with the center snap ring being fixed on arm axle and located at two pieces of center snap ring left and right sides middle part thrust pads, arm axle two ends Respectively fixed with end thrust pad and end snap ring, fastening bolt sequentially passes through elastic thrust pad, flat thrust pad, rocker arm shaft, bottom For the valve rocker of groove, valve lever bracket, finally it is anchored on cylinder end valve rocking arm fixing hole, described valve clearance adjusts spiral shell Bolt is fixed on one end of valve rocker Transmission Engine valve with valve clearance adjusting nut, makes valve rocker directional working mechanism Structure be simplified, and the adjustment work simple operations of valve clearance are convenient, and this put-put valve rocker orients work Make mechanism, oriented structure excessively simplifies, adjust after gap adjustment bolt it is possible that shift phenomenon, simultaneously rocking arm directly with Rocker arm shaft directly contact rubs, and the abrasion to equipment is larger, therefore, designs a kind of put-put valve rocker orientation works machine Structure.

Utility model content

The purpose of this utility model is to provide a kind of valve rocker directional working mechanism of small-sized engine, above-mentioned to solve The oriented structure proposing in background technology excessively simplifies, and adjusts after gap adjustment bolt it is possible that shift phenomenon, simultaneously Rocking arm is directly rubbed with rocker arm shaft directly contact, the larger problem of wearing and tearing to equipment.

For achieving the above object, the utility model provides a kind of following technical scheme: put-put valve rocker orientation Operating mechanism, including axle, the outer wall of described axle is socketed with bearing, and the outer wall of described bearing is socketed with valve rocker, described valve The right-hand member of rocking arm offers screw, and the inner chamber of described screw is plugged with regulating bolt, and the outer wall of described regulating bolt is socketed with tune Section nut, described adjusting nut is arranged on the top of valve rocker, and the bottom of described valve rocker is provided with pilot sleeve, described The inner chamber of pilot sleeve is plugged with gap adjustment bolt, and the top of described gap adjustment bolt passes through the top of valve rocker, institute The top stating gap adjustment bolt is provided with locking nut, and the bottom of described locking nut is provided with gap adjustment nut, described The bottom of gap adjustment nut arranges flexible thrust pad, and described elasticity thrust pad is arranged on the top of valve rocker, described between It is provided with feather key between the left side wall of gap regulating bolt and the inner chamber of axle.

Preferably, the diameter with diameter greater than gap adjustment bolt of described pilot sleeve.

Preferably, described feather key is rectangular structure, and feather key is vertically provided at the left side wall of gap adjustment bolt And the inner chamber of axle between.

Preferably, described bearing is ball bearing.

Compared with prior art, the beneficial effects of the utility model are: the utility model passes through to increase feather key and guiding The cooperating of sleeve, makes gap adjustment bolt will not shift when adjusting gap it is ensured that the stability of Valve Rocker Organization, By increasing bearing, valve rocker is made will not directly to rub with the outer wall of axle in motion, prolongation valve rocker and axle Service life, by the setting of regulating bolt, makes Valve Rocker Organization not need to adjust whole mechanism in adjustment, reduces adjustment Triviality, make easy to adjust quick.

Brief description

Fig. 1 is the utility model structural representation.

In figure: 1 axle, 2 bearings, 3 valve rockers, 4 screws, 5 regulating bolts, 6 adjusting nuts, 7 pilot sleeves, 8 gaps are adjusted Section bolt, 9 locking nuts, 10 gap adjustment nuts, 11 elastic thrust pads, 12 feather keys.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely description is it is clear that described embodiment is only a part of embodiment of the utility model rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of making creative work The every other embodiment being obtained, broadly falls into the scope of the utility model protection.

Refer to Fig. 1, the utility model provides a kind of a kind of technical scheme: put-put valve rocker orientation works machine Structure, including axle 1, the outer wall of described axle 1 is socketed with bearing 2, and the outer wall of described bearing 2 is socketed with valve rocker 3, and described valve shakes The right-hand member of arm 3 offers screw 4, and the inner chamber of described screw 4 is plugged with regulating bolt 5, and the outer wall of described regulating bolt 5 is socketed with Adjusting nut 6, described adjusting nut 6 is arranged on the top of valve rocker 3, and the bottom of described valve rocker 3 is provided with fairlead Cylinder 7, the inner chamber of described pilot sleeve 7 is plugged with gap adjustment bolt 8, and the top of described gap adjustment bolt 8 is shaken through valve The top of arm 3, the top of described gap adjustment bolt 8 is provided with locking nut 9, between the bottom of described locking nut 9 is provided with Gap adjusting nut 10, the bottom of described gap adjustment nut 10 arranges flexible thrust pad 11, and described elasticity thrust pad 11 is arranged It is provided with feather key 12 between the top of valve rocker 3, the left side wall of described gap adjustment bolt 8 and the inner chamber of axle 1.

Wherein, the diameter with diameter greater than gap adjustment bolt 8 of described pilot sleeve 7, facilitates the tune of gap adjustment bolt 8 Section, described feather key 12 is rectangular structure, and feather key 12 is vertically provided at left side wall and the axle 1 of gap adjustment bolt 8 It is ensured that positional when gap adjustment bolt 8 is adjusted will not shift between inner chamber, described bearing 2 is ball bearing, makes valve Rocking arm 3 makes directly to rub with the outer wall of axle 1 in motion, extends the service life of valve rocker 3 and axle 1.

Operation principle: the utility model gap and equipment between is adjusted by gap adjustment bolt 8 it is ensured that with equipment it Between installation standard, by the setting of gap adjustment nut 10, so that gap adjustment bolt 8 can be adjusted, by elastic thrust pad 11 setting, make gap adjustment nut 10 and equipment will not directly contact, simultaneously as elastic thrust pad 11 has certain bullet Property, make gap adjustment nut 10 have a stress, so that gap adjustment nut 10 is difficult in the cooperation of stress and screw thread Slide, make the position of gap adjustment bolt 8 keep stable, by the setting of locking nut 9, enable gap adjustment bolt 8 Enough it is locked it is ensured that the stability of gap adjustment bolt 8, by the setting of feather key 12 and pilot sleeve 7, make feather key 12 He Pilot sleeve 7 cooperates it is ensured that will not shift it is ensured that the stablizing of valve rocker 3 when gap adjustment bolt 8 adjusts gap Property, by the setting of bearing 2, so that valve rocker 3 will not be directly rubbed with the outer wall of axle 1 in motion, extend valve and shake Arm 3 and the service life of axle 1, by the setting of regulating bolt 5, make valve rocker 3 not need to adjust whole mechanism in adjustment, Reduce the triviality of adjustment, by the setting of adjusting nut 6, make regulating bolt 5 reduce the triviality of adjustment, allow easy to adjust fast Prompt.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with multiple changes in the case of without departing from principle of the present utility model and spirit, repair Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of valve rocker directional working mechanism of small-sized engine, including axle (1) it is characterised in that: the outer wall of described axle (1) It is socketed with bearing (2), the outer wall of described bearing (2) is socketed with valve rocker (3), and the right-hand member of described valve rocker (3) offers Screw (4), the inner chamber of described screw (4) is plugged with regulating bolt (5), and the outer wall of described regulating bolt (5) is socketed with regulation spiral shell Female (6), described adjusting nut (6) is arranged on the top of valve rocker (3), and the bottom of described valve rocker (3) is provided with guiding Sleeve (7), the inner chamber of described pilot sleeve (7) is plugged with gap adjustment bolt (8), the top of described gap adjustment bolt (8) Through the top of valve rocker (3), the top of described gap adjustment bolt (8) is provided with locking nut (9), described locking nut (9) bottom is provided with gap adjustment nut (10), and the bottom of described gap adjustment nut (10) arranges flexible thrust pad (11), described elasticity thrust pad (11) is arranged on the top of valve rocker (3), the left side wall of described gap adjustment bolt (8) with It is provided with feather key (12) between the inner chamber of axle (1).

2. a kind of valve rocker directional working mechanism of small-sized engine according to claim 1 it is characterised in that: described lead The diameter with diameter greater than gap adjustment bolt (8) to sleeve (7).

3. a kind of valve rocker directional working mechanism of small-sized engine according to claim 1 it is characterised in that: described lead It is rectangular structure to key (12), and feather key (12) is vertically provided at the left side wall of gap adjustment bolt (8) and the interior of axle (1) Between chamber.

4. a kind of valve rocker directional working mechanism of small-sized engine according to claim 1 it is characterised in that: described axle Holding (2) is ball bearing.