CN211574233U

CN211574233U - High-temperature-resistant high-strength automobile piston

Info

Publication number: CN211574233U
Application number: CN202020055701.6U
Authority: CN
Inventors: 吴松江
Original assignee: Jiangmen Hongxing Electromechanical Forging Co ltd
Current assignee: Jiangmen Hongxing Electromechanical Forging Co ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-09-25
Anticipated expiration: 2030-01-10

Abstract

The utility model discloses a high-temperature-resistant high-strength automobile piston, which comprises a piston head and a piston rear seat, wherein the rear end of the piston head is fixedly connected with the piston rear seat; the piston head comprises an annular groove, a rubber ring, an arc-shaped groove and a narrowing section, the annular groove is formed in the outer side of the piston head, the rubber ring is connected with the inner portion of the annular groove in a clamping and embedding manner, the arc-shaped groove which is concave inwards is formed in the front end face of the piston head, and the narrowing section which is convex outwards is formed in the rear end face of the piston head; the piston rear seat is divided into a shaft sleeve, a tooth opening, a rear seat main body and an end face hole, the rear seat main body is arranged on one side of the piston rear seat, the tooth opening is formed in one side of the rear seat main body, and the shaft sleeve is rotatably connected to the other side of the rear seat main body through a bearing. The piston can buffer the hydraulic pressure of the rubber ring at the edge of the piston head, reduce the abrasion of the rubber ring, prolong the service life of the rubber ring, and improve the strength of a size change section, thereby improving the overall strength of the automobile piston.

Description

High-temperature-resistant high-strength automobile piston

Technical Field

The utility model relates to an automobile piston technical field especially relates to a high temperature resistant high strength automobile piston.

Background

The automobile steering device is also called steering machine and steering machine, and is the most important part in automobile steering system. It has the following functions: the common methods for increasing the force transmitted by the steering wheel to the steering gear and changing the direction of force transmission are rack and pinion, worm crank pin and recirculating ball. Need use the piston among the auto steering ware, mainly be used for providing power for the steering wheel, but current car piston leads to the sealing washer wearing and tearing big at the in-process of the frequent motion of steering wheel for the high temperature resistance of sealing washer reduces, and life shortens, and the less linking piece of piston connection size at the rear end, and two object junctions that the size is different are weak, and intensity is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature resistance high strength car piston, this piston can cushion the hydraulic pressure of piston head edge rubber ring, reduces the wearing and tearing of rubber ring, prolongs the life-span of rubber ring to improve the intensity of dimensional change section, thereby improve the bulk strength of car piston, solved the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-temperature-resistant high-strength automobile piston comprises a piston head and a piston rear seat, wherein the rear end of the piston head is fixedly connected with the piston rear seat; the piston head comprises an annular groove, a rubber ring, an arc-shaped groove and a narrowing section, the annular groove is formed in the outer side of the piston head, the rubber ring is connected with the inner portion of the annular groove in a clamping and embedding manner, the arc-shaped groove which is concave inwards is formed in the front end face of the piston head, and the narrowing section which is convex outwards is formed in the rear end face of the piston head;

the piston rear seat is divided into a shaft sleeve, a tooth opening, a rear seat main body and an end surface hole, the rear seat main body is arranged on one side of the piston rear seat, the tooth opening is formed in one side of the rear seat main body, the shaft sleeve is rotatably connected to the other side of the rear seat main body through a bearing, the shaft sleeve is connected with the piston rear seat in a penetrating mode, and the end surface hole is formed in the end surface of the piston rear seat.

Preferably, the middle part of the shaft sleeve is provided with a through screw hole.

Preferably, the rubber ring is a high-temperature-resistant sealing ring.

Preferably, the backseat main body and the piston head are cast and integrally formed.

Preferably, one side of the rear seat main body is provided with outwardly convex bevel teeth, the bevel teeth are provided with two inclined planes, and the tooth openings and the shaft sleeve are respectively positioned on the two inclined planes.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the high-temperature-resistant high-strength automobile piston provided by the utility model has the advantages that the end face provided with the arc-shaped groove is in contact with the oil, when the oil is on the end face of the piston head, the oil pressure received at the center of the end face is large, the oil pressure received at the edge of the end face is small, the hydraulic pressure of the rubber ring at the edge of the piston head is buffered, the abrasion of the rubber ring is reduced, and the service life of the rubber ring is prolonged; and the convex plate-shaped narrowing section which protrudes outwards is used for carrying out transition from the piston head with larger diameter size to the piston rear seat with smaller diameter size, so that the strength of the size change section is improved, and the integral strength of the automobile piston is improved.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a diagram of the piston head of the present invention;

FIG. 3 is a view of the structure of the rear seat of the piston of the present invention;

fig. 4 is a shaft sleeve structure diagram of the present invention.

In the figure: 1. a piston head; 11. an annular groove; 12. a rubber ring; 13. an arc-shaped slot; 14. narrowing the section; 2. a piston rear seat; 21. a shaft sleeve; 211. a screw hole; 22. a tooth mouth; 23. a rear seat main body; 24. an end face hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a high-temperature resistant high-strength automobile piston comprises a piston head 1 and a piston rear seat 2, wherein the piston rear seat 2 is fixedly connected to the rear end of the piston head 1; piston head 1 includes ring channel 11, rubber ring 12, arc wall 13 and narrowing section 14, ring channel 11 has been seted up in the outside of piston head 1, ring channel 11's inside inlay card is connected with rubber ring 12, rubber ring 12 is high temperature resistant sealing washer, end face contact fluid through seting up arc wall 13, fluid is when the terminal surface of piston head 1, because arc wall 13 acts on, the fluid pressure that end face center department received is big, the fluid pressure that end face edge received is little, the hydraulic pressure of buffer piston head 1 edge rubber ring 12, reduce the wearing and tearing of rubber ring 12, the life-span of extension rubber ring 12, the preceding terminal surface of piston head 1 is equipped with inside sunken arc wall 13, the rear end face of piston head 1 is equipped with outside bellied narrowing section 14.

Referring to fig. 3-4, the piston rear seat 2 is divided into a shaft sleeve 21, a tooth opening 22, a rear seat main body 23 and an end surface hole 24, one side of the piston rear seat 2 is provided with the rear seat main body 23, the rear seat main body 23 and the piston head 1 are cast into an integral structure, the outwardly convex boss-shaped narrowing section 14 is utilized to perform transition from the piston head 1 with a larger diameter size to the piston rear seat 2 with a smaller diameter size, the strength of the size change section is improved, and therefore, the overall strength of the automobile piston is improved, the tooth opening 22 is formed in one side of the rear seat main body 23, the other side of the rear seat main body 23 is rotatably connected with the shaft sleeve 21 through a bearing, the middle of the shaft sleeve 21 is provided with a through screw hole 211, the screw hole 211 in the middle of the shaft sleeve 21 is connected with a roller screw rod, so as to drive the piston head 1 and the piston rear seat 2 to reciprocate, tooth mouth 22 and axle sleeve 21 are located two inclined planes respectively, and through tooth mouth 22 and gear interlock, rotary gear drives piston head 1 and piston back seat 2 and carries out reciprocating motion, and axle sleeve 21 through connection has piston back seat 2, and end face hole 24 has been seted up to the terminal surface of piston back seat 2, thereby through end face hole 24 swing joint rocker, the rocker sways and drives piston head 1 and piston back seat 2 and carry out reciprocating motion.

The working principle is as follows: the end surface hole 24 is movably connected with a rocker, and the rocker swings to drive the piston head 1 and the piston rear seat 2 to reciprocate; the roller screw is connected through a screw hole 211 in the middle of the shaft sleeve 21, so that the piston head 1 and the piston rear seat 2 are driven to reciprocate; through the engagement of the tooth mouth 22 and the gear, the rotary gear drives the piston head 1 and the piston rear seat 2 to reciprocate.

In summary, the following steps: the utility model discloses a high temperature resistance high strength car piston, through the terminal surface contact fluid of seting up arc wall 13, when fluid is at the terminal surface of piston head 1, because the effect of arc wall 13, the fluid pressure that receives in the center of the terminal surface is big, and the fluid pressure that receives at the terminal surface edge is little, cushions the hydraulic pressure of rubber ring 12 at piston head 1 edge, reduces the wearing and tearing of rubber ring 12, prolongs the life-span of rubber ring 12; and the outwards convex boss-shaped narrow section 14 is used for carrying out transition from the piston head 1 with larger diameter size to the piston rear seat 2 with smaller diameter size, so that the strength of the size change section is improved, and the integral strength of the automobile piston is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high temperature resistance high strength car piston, includes piston head (1) and piston back seat (2), its characterized in that: the rear end of the piston head (1) is fixedly connected with a piston rear seat (2); the piston head (1) comprises an annular groove (11), a rubber ring (12), an arc-shaped groove (13) and a narrowing section (14), the annular groove (11) is formed in the outer side of the piston head (1), the rubber ring (12) is connected to the inner portion of the annular groove (11) in a clamping and embedding mode, the inward-concave arc-shaped groove (13) is formed in the front end face of the piston head (1), and the outward-convex narrowing section (14) is formed in the rear end face of the piston head (1);

piston back seat (2) divide into axle sleeve (21), tooth mouth (22), back seat main part (23) and end face hole (24), one side of piston back seat (2) is equipped with back seat main part (23), tooth mouth (22) have been seted up to one side of back seat main part (23), there is axle sleeve (21) opposite side of back seat main part (23) through bearing swivelling joint, axle sleeve (21) through connection has piston back seat (2), end face hole (24) have been seted up to the terminal surface of piston back seat (2).

2. The high-temperature-resistant high-strength automobile piston as claimed in claim 1, wherein: the middle part of the shaft sleeve (21) is provided with a through screw hole (211).

3. The high-temperature-resistant high-strength automobile piston as claimed in claim 1, wherein: the rubber ring (12) is a high-temperature-resistant sealing ring.

4. The high-temperature-resistant high-strength automobile piston as claimed in claim 1, wherein: the rear seat main body (23) and the piston head (1) are of a cast and integrally formed structure.

5. The high-temperature-resistant high-strength automobile piston as claimed in claim 1, wherein: one side of the rear seat main body (23) is provided with conical teeth protruding outwards, the conical teeth are provided with two inclined planes, and the tooth opening (22) and the shaft sleeve (21) are respectively positioned on the two inclined planes.