CN219262470U

CN219262470U - Novel engine valve tappet

Info

Publication number: CN219262470U
Application number: CN202320777984.9U
Authority: CN
Inventors: 李玉辉
Original assignee: Zhejiang Huiyu Auto Parts Co ltd
Current assignee: Zhejiang Huiyu Auto Parts Co ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-06-27
Anticipated expiration: 2033-03-31

Abstract

The utility model provides a novel engine valve tappet, and belongs to the technical field of engines. The valve lifter solves the problem that noise is easy to generate when the existing valve lifter works. This novel engine valve tappet, including the tappet, the pipe, valve and spring, have the tappet hole in the pipe, the tappet is along the reciprocal flexible of tappet hole, the pipe top has upwards the axial arch and supplies the step layer that the pipe passed through, be provided with wear-resisting bush between step layer and the pipe, and this wear-resisting bush's lower tip extends and supplies pipe reciprocating motion in the tappet hole, wear-resisting bush top has upwards protruding and supplies the shirt portion that the tappet passed through, have the U type back-off that advances line location to wear-resisting bush on the step layer, U type back-off is two, and distribute respectively on the both sides of tappet, set up the bayonet socket that supplies U type back-off card to establish on the step layer. The utility model has the advantages of abrasion resistance, high stable operation and noise reduction of the tappet rod.

Description

Novel engine valve tappet

Technical Field

The utility model belongs to the technical field of engines, relates to an engine valve tappet, and in particular relates to a novel engine valve tappet.

Background

The purpose of an automotive engine valve lifter is to transmit the thrust of the cam and its lift change to the valve and to withstand the lateral forces generated by the rotation of the camshaft.

The valve lifter of the automobile engine reciprocates in the hole for assembly, friction is generated by the mutual friction between the valve lifter and the wall of the hole, and the valve lifter swings in the hole due to the lateral force applied by the rotation of the cam shaft, so that the valve lifter is forced to contact with the wall of the hole to generate noise.

Disclosure of Invention

The present utility model has been made keeping in mind the above problems occurring in the prior art, and an object of the present utility model is to provide a novel engine valve lifter with guiding and noise reduction effects.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a novel engine valve tappet, includes tappet, pipe, valve and spring, has the tappet hole in the pipe, and the tappet is along the reciprocal flexible of tappet hole, its characterized in that, pipe top have upwards the axial arch and supply the step layer that the pipe passed through, step layer and pipe between be provided with wear-resisting bush, and the lower tip of this wear-resisting bush extends and supplies the pipe reciprocating motion towards the tappet downthehole, wear-resisting bush top have upwards protruding and supply the shirt part that the tappet passed through, the step level on have the U type back-off that carries out the location to wear-resisting bush, U type back-off be two, and distribute respectively on the both sides of tappet, the step level on seted up the bayonet socket that supplies U type back-off card to establish.

In the novel engine valve tappet, the wear-resistant lining is provided with the expansion part which is radially expanded outwards and positioned by the U-shaped back-off pressing at the bottom of the skirt part, and the step is provided with the mounting groove for mounting the expansion part.

In the novel engine valve tappet, a plurality of radial limiting protrusions are formed on the groove wall of the mounting groove in a circumferential direction, and a plurality of limiting grooves for mounting the radial limiting protrusions are formed on the wear-resistant lining.

Compared with the prior art, the novel engine valve tappet has the following advantages:

1. collision between the tappet rod and the hole wall is prevented, and noise is reduced;

2. the tappet rod is guided, and can be more stably reciprocated and stretched;

3. the wear-resistant bushing is stable to install and prevents tappet wear.

Drawings

Fig. 1 is a schematic perspective view of a valve lifter of the present novel engine.

FIG. 2 is a schematic cross-sectional structural view of the novel engine valve lifter.

FIG. 3 is a schematic partial perspective view of the novel engine valve lifter.

In the figure, 1, a tappet; 2. a conduit; 3. a valve; 4. a spring; 5. a step layer; 6. wear-resistant bushings; 7. a liner skirt; 8. u-shaped back-off; 9. a spreading section; 10. radial limit convexity.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1, fig. 2, fig. 3, this novel engine valve tappet, including tappet 1, pipe 2, valve 3 and spring 4, have tappet 1 hole in pipe 2, tappet 1 is along the reciprocal flexible of tappet 1 hole, pipe 2 top has upwards the axial arch and supplies pipe 2 through step layer 5, be provided with wear-resisting bush 6 between step layer 5 and the pipe 2, and the lower tip of this wear-resisting bush 6 extends and supplies pipe 2 reciprocating motion in the tappet 1 hole, wear-resisting bush 6 top has upwards protruding and supplies tappet 1 through lining skirt portion 7, have on the level 5 to carry out the U type back-off 8,U type back-off 8 that fixes a position to wear-resisting bush 6 and be two, and distribute respectively in tappet 1's both sides, offer the bayonet socket that supplies U type back-off 8 card to establish on the level 5, U type back-off 8 is used for fixing a position to tappet 1, prevent that it from taking place the position at the during operation, improve wear-resisting bush 6's use.

Preferably, the wear-resistant lining 6 is provided with a spreading part 9 which spreads outwards in the radial direction and is pressed and positioned by a U-shaped back-off 8 at the bottom of the lining skirt 7, and the step layer 5 is provided with a mounting groove for mounting the spreading part 9.

Further, a plurality of radial limiting protrusions 10 are circumferentially formed on the groove wall of the mounting groove, a plurality of limiting grooves for mounting the radial limiting protrusions 10 are formed on the wear-resistant lining 6, the wear-resistant lining 6 is radially limited by means of mounting cooperation of the radial limiting protrusions 10 and the limiting grooves, the U-shaped back-off 8 is mounted after the radial limiting protrusions 10 and the radial limiting grooves, axial limiting is carried out on the wear-resistant lining 6, and then the wear-resistant lining 6 is fixed.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although the terms tappet 1, duct 2, valve 3, spring 4, step 5, wear bushing 6, skirt 7, U-turn 8, extension 9, radial stop 10 are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. The utility model provides a novel engine valve tappet, includes tappet (1), pipe (2), valve (3) and spring (4), has tappet (1) hole in pipe (2), tappet (1) are along the reciprocal flexible of tappet (1) hole, its characterized in that, pipe (2) top have upwards the axial arch and supply step layer (5) that pipe (2) passed through, step layer (5) and pipe (2) between be provided with wear-resisting bush (6), and the lower tip of this wear-resisting bush (6) extends and supplies pipe (2) reciprocating motion towards tappet (1) downthehole, wear-resisting bush (6) top have upwards protruding and supply tappet (1) to pass through shirt portion (7), step layer (5) on have and carry out U type back-off (8) that fix a position wear-resisting bush (6), U type back-off (8) be two, and distribute respectively in the both sides of tappet (1), step layer (5) on offer the bayonet socket that supplies U type back-off (8) card to establish.

2. The novel engine valve tappet according to claim 1, wherein the wear-resistant lining (6) is provided with a spreading part (9) which spreads radially outwards and is pressed and positioned by a U-shaped back-off (8) at the bottom of the lining skirt part (7), and the step layer (5) is provided with a mounting groove for mounting the spreading part (9).

3. The novel engine valve tappet according to claim 2, wherein a plurality of radial limiting protrusions (10) are formed on the groove wall of the mounting groove in a circumferential direction, and a plurality of limiting grooves for mounting the radial limiting protrusions (10) are formed on the wear-resistant lining (6).