CN215370057U

CN215370057U - High-temperature-resistant high-strength automobile piston

Info

Publication number: CN215370057U
Application number: CN202121461574.0U
Authority: CN
Inventors: 林发粦; 程荣泉; 李启忠
Original assignee: Fujian Wuping County Yutian Auto Parts Industry Co ltd
Current assignee: Fujian Wuping County Yutian Auto Parts Industry Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-12-31
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses a high-temperature-resistant high-strength automobile piston which comprises a piston body, wherein a piston ring groove is fixedly arranged on the surface of the piston body, the top of the piston ring groove is fixedly provided with a piston top, the bottom of the piston ring groove is fixedly provided with a piston skirt part, an oiling component is fixedly arranged inside the piston skirt part, the surface of the piston skirt part is fixedly provided with a protection component, and the bottom of the piston body is movably provided with a connecting rod. According to the utility model, the oiling component is fixedly arranged in the piston skirt part, oil on the inner wall of the annular groove can be scraped by utilizing the up-and-down movement of the oil ring in the first groove, then redundant oil is guided into the oil storage cavity through the oil inlet pipe by utilizing the inclined surface of the air ring, and then the oil in the oil storage cavity is guided into the movable chamber by utilizing the oil guide pipe, wherein the movable chamber is the main position of friction between the working of the connecting rod and the piston, and the friction between the connecting rod and the piston is reduced by the inflowing engine oil, so that the working of the piston is smoother, and the service performance of the piston is improved.

Description

High-temperature-resistant high-strength automobile piston

Technical Field

The utility model relates to the technical field of pistons, in particular to a high-temperature-resistant high-strength automobile piston.

Background

The automobile steering device is also called steering machine and steering machine, is the most important part in the automobile steering system, and has the functions of: the common use of the rack and pinion type, the worm crank pin type and the recirculating ball type is that a piston is used in the automobile steering gear, the piston is a common material in an engine, alternating mechanical load and thermal load are borne by the up-and-down sliding of the piston, the piston bears the action of gas pressure, and the piston is divided into a plurality of types, which is an important part in the engine, and the existing automobile piston has a plurality of problems or defects in the using process:

traditional car piston is in-service use, because the drive connecting rod rotates in the piston, the friction that connecting rod and piston do not stop causes inside wearing and tearing serious, influences the normal use of piston, simultaneously because be in for a long time and carry out work under the environment of high temperature, and the general thermal coefficient of piston is not high, needs the periodic replacement piston just can guarantee user's safety.

Disclosure of Invention

The utility model aims to provide a high-temperature-resistant high-strength automobile piston to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high temperature resistance high strength car piston, includes the piston body, the fixed surface of piston body is provided with the piston ring groove, the top fixed mounting of piston ring groove has the piston top, the fixed piston skirt portion that is provided with in bottom of piston ring groove, the inside fixed of piston skirt portion is provided with refuels the subassembly, the fixed surface of piston skirt portion is provided with the protection subassembly, the bottom movable mounting of piston body has the connecting rod.

As a further scheme of the utility model: the refueling assembly comprises a movable chamber, oil guide pipes are fixedly arranged on two sides of the movable chamber, an oil storage cavity is fixedly arranged on one side of each oil guide pipe, an oil inlet pipe is fixedly arranged on one side of the oil storage cavity, and a guide plate is fixedly arranged on one side of the oil inlet pipe.

As a further scheme of the utility model: the protection component comprises a high-temperature-resistant layer, an anti-corrosion layer is fixedly arranged on one side of the high-temperature-resistant layer, and a wear-resistant layer is fixedly arranged on one side of the anti-corrosion layer.

As a further scheme of the utility model: the fixed first recess that is provided with in top of piston ring groove, the inside activity of first recess is provided with the oil ring, the fixed second recess that is provided with in bottom of oil ring, the inside activity of second recess is provided with the limit ring, the fixed third recess that is provided with in bottom of limit ring, the inside activity of third recess is provided with the gas ring.

As a further scheme of the utility model: and a piston pin hole is fixedly formed in the surface of the piston skirt, and a piston pin body is installed in the piston pin hole in a penetrating mode.

As a further scheme of the utility model: the bottom of the connecting rod is fixedly provided with a bearing bush, two sides of the bearing bush are provided with connecting bolts in a penetrating mode, and the surfaces of the connecting bolts are provided with nuts in a sleeved mode.

Compared with the prior art, the utility model has the beneficial effects that: this high temperature resistant high strength car piston has following advantage:

(1) the oiling component is fixedly arranged in the piston skirt part, oil on the inner wall of the annular groove can be scraped by utilizing the up-and-down motion of an oil ring in the first groove, redundant oil is guided into the oil storage cavity by utilizing the inclined surface of the air ring through the oil inlet pipe, and then the oil in the oil storage cavity is guided into the movable chamber by utilizing the oil guide pipe, the movable chamber is the main position of friction between the working of the connecting rod and the piston, the friction between the connecting rod and the piston is reduced by the inflowing engine oil, so that the working of the piston is smoother, the service performance of the piston is improved, and the problems that the internal abrasion is serious and the normal use of the piston is influenced because the continuous friction between the connecting rod and the piston drives the connecting rod to rotate in the piston in the prior art are solved;

(2) the protective component is fixedly arranged on the surface of the skirt part of the piston, the surface of the piston can be coated with a high-temperature resistant layer containing tungsten alloy elements, so that the high temperature resistance of the piston is improved, tungsten is taken as the most high-temperature resistant material at present and can effectively resist the high temperature generated during combustion, and meanwhile, the anti-corrosion layer and the wear-resistant layer are arranged, so that the corrosion resistance and the wear resistance of the piston are improved, the service life of the piston is prolonged, the strength of the piston is further improved, and the problem that the safety of a user can be ensured only by regularly replacing the piston due to the fact that the piston is generally low in heat resistance coefficient when the piston works in a high-temperature environment for a long time in the prior art is solved;

(3) there is the connecting rod through the bottom movable mounting at the piston body, can utilize the connecting rod top to be provided with the lantern ring, cup joint the surface at the piston pin body, bottom at the connecting rod is provided with the axle bush, the both sides of axle bush have the stopper, connecting bolt runs through the stopper, fix two axle bushes, the cooperation nut makes fixed effect better, the connecting rod is connecting piston and bent axle, and pass the bent axle with the effort that the piston receives, change the reciprocating motion of piston into the rotary motion of bent axle, the axle bush is the part of slide bearing and axle journal contact, the shape is the half cylinder face of tile form, it is very smooth, generally with bronze, wear-resisting materials such as antifriction alloy make, under the special condition, can be with timber, engineering plastics or rubber make.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

FIG. 3 is a schematic illustration of a partial ring groove configuration according to the present invention;

FIG. 4 is a partial structural view of the protection assembly of the present invention;

FIG. 5 is a partial structural view of the connecting rod of the present invention.

In the figure: 1. a piston top; 2. a piston ring groove; 201. a first groove; 202. a second groove; 203. a third groove; 204. an oil ring; 205. a confinement ring; 206. a gas ring; 3. a piston skirt; 301. a piston pin bore; 302. a piston pin body; 4. a refueling assembly; 401. an oil inlet pipe; 402. an oil guide pipe; 403. a guide plate; 404. an oil storage chamber; 405. an activity room; 5. a protection component; 501. a high temperature resistant layer; 502. an anti-corrosion layer; 503. a wear layer; 6. a piston body; 7. a connecting rod; 701. a connecting bolt; 702. bearing bushes; 703. and a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an embodiment of the present invention is shown: a high-temperature-resistant high-strength automobile piston comprises a piston body 6, a piston ring groove 2 is fixedly arranged on the surface of the piston body 6, a first groove 201 is fixedly arranged at the top of the piston ring groove 2, an oil ring 204 is movably arranged in the first groove 201, a second groove 202 is fixedly arranged at the bottom of the oil ring 204, a limiting ring 205 is movably arranged in the second groove 202, a third groove 203 is fixedly arranged at the bottom of the limiting ring 205, an air ring 206 is movably arranged in the third groove 203, a piston top 1 is fixedly arranged at the top of the piston ring groove 2, a piston skirt portion 3 is fixedly arranged at the bottom of the piston ring groove 2, a piston pin hole 301 is fixedly arranged on the surface of the piston skirt portion 3, a piston pin body 302 is installed in the piston pin hole 301 in a penetrating manner, an oiling component 4 is fixedly arranged in the piston skirt portion 3, the oiling component 4 comprises a movable chamber 405, oil pipes 402 are fixedly arranged on two sides of the movable chamber 405, an oil storage cavity 404 is fixedly arranged on one side of the oil guide pipe 402, an oil inlet pipe 401 is fixedly arranged on one side of the oil storage cavity 404, and a guide plate 403 is fixedly arranged on one side of the oil inlet pipe 401;

specifically, as shown in fig. 1, 2 and 3, when in use, the oil feeding assembly 4 is fixedly arranged inside the piston skirt 3, oil on the inner wall of the ring groove can be scraped off by the up-and-down movement of the oil ring 204 in the first groove 201, then the surplus oil is guided into the oil storage cavity 404 by the inclined surface of the air ring 206 through the oil inlet pipe 401, and then the oil in the oil storage cavity 404 is guided into the movable chamber 405 by the oil guide pipe 402, the movable chamber 405 is the main position of the friction between the working of the connecting rod 7 and the piston, the friction between the connecting rod 7 and the piston is reduced by the inflowing oil, so that the working of the piston is smoother, the service performance of the piston is improved, the problem that the conventional piston is affected by serious internal abrasion caused by the continuous friction between the connecting rod 7 and the piston due to the rotation of the driving connecting rod 7 in the piston is solved, and the normal use of the piston is affected, by installing the piston skirt 3, and the piston skirt 3 refers to the part below the last ring groove of the piston, the piston pin body 302 is a cylindrical pin which is arranged on the piston skirt 3, the middle part of the piston pin body 302 passes through a small end hole of a connecting rod 7 and is used for connecting the piston and the connecting rod 7, and the piston pin body 302 has the function of transmitting the gas acting force borne by the piston to the connecting rod 7 or enabling the small end of the connecting rod 7 to drive the piston to move together;

the surface of the piston skirt 3 is fixedly provided with a protection component 5, the protection component 5 comprises a high temperature resistant layer 501, one side of the high temperature resistant layer 501 is fixedly provided with an anti-corrosion layer 502, and one side of the anti-corrosion layer 502 is fixedly provided with a wear-resistant layer 503;

specifically, as shown in fig. 1 and 4, when in use, the protective component 5 is fixedly arranged on the surface of the piston skirt portion 3, a high-temperature resistant layer 501 containing tungsten alloy elements can be coated on the surface of the piston, so that the high temperature resistance of the piston is improved, tungsten is taken as the highest-temperature resistant material at present, the high temperature generated during combustion can be effectively resisted, and meanwhile, the anti-corrosion layer 502 and the wear-resistant layer 503 are arranged, so that the corrosion resistance and wear resistance of the piston are improved, the service life of the piston is prolonged, the strength of the piston is further improved, and the problem that the safety of a user can be ensured only by replacing the piston regularly due to low general heat resistance coefficient of the piston when the piston works in a high-temperature environment for a long time is solved;

a connecting rod 7 is movably mounted at the bottom of the piston body 6, a bearing bush 702 is fixedly arranged at the bottom of the connecting rod 7, connecting bolts 701 penetrate through two sides of the bearing bush 702, and nuts 703 are sleeved on the surfaces of the connecting bolts 701;

specifically, as shown in fig. 1 and 5, during use, there is a connecting rod 7 movably mounted at the bottom of the piston body 6, a lantern ring can be arranged at the top of the connecting rod 7, the piston pin body 302 is sleeved with the lantern ring, a bearing bush 702 is arranged at the bottom of the connecting rod 7, limiting blocks are arranged on two sides of the bearing bush 702, a connecting bolt 701 penetrates through the limiting blocks, the two bearing bushes 702 are fixed, a nut 703 is matched to enable the fixing effect to be better, the connecting rod 7 is used for connecting the piston and a crankshaft and transmitting acting force applied to the piston to the crankshaft, reciprocating motion of the piston is converted into rotating motion of the crankshaft, the bearing bush 702 is a part in contact with a journal, the shape of a tile-shaped semi-cylindrical surface is very smooth, the sliding bearing bush is generally made of wear-resistant materials such as bronze and antifriction alloy, and under special conditions, the sliding bush can be made of wood, engineering plastics or rubber.

The working principle is as follows: when the piston is used, firstly, the oiling component 4 is fixedly arranged in the piston skirt part 3, oil on the inner wall of the ring groove can be scraped off by utilizing the up-and-down movement of the oil ring 204 in the first groove 201, then, redundant oil is guided into the oil storage cavity 404 through the oil inlet pipe 401 by utilizing the inclined surface of the air ring 206, then, the oil in the oil storage cavity 404 is guided into the movable chamber 405 by utilizing the oil guide pipe 402, the movable chamber 405 is the main position of the friction between the work of the connecting rod 7 and the piston, the friction between the connecting rod 7 and the piston is reduced by the inflowing engine oil, so that the work of the piston is smoother, and the service performance of the piston is improved;

secondly, the surface of the piston skirt 3 is fixedly provided with the protection component 5, the surface of the piston can be coated with a high-temperature resistant layer 501 containing tungsten alloy elements, so that the high temperature resistance of the piston is improved, tungsten is taken as the highest-temperature resistant material at present, the high temperature generated during combustion can be effectively resisted, and meanwhile, the anti-corrosion layer 502 and the wear-resistant layer 503 are arranged, so that the corrosion resistance and the wear resistance of the piston are improved, the service life of the piston is prolonged, and the strength of the piston is further improved;

finally, there is connecting rod 7 through movable mounting in the bottom of piston body 6, can utilize connecting rod 7 top to be provided with the lantern ring, cup joint on the surface of piston pin body 302, be provided with axle bush 702 in the bottom of connecting rod 7, the both sides of axle bush 702 have the stopper, connecting bolt 701 runs through the stopper, fix two axle bushes 702, cooperation nut 703 makes the fixed effect better, connecting rod 7 is connecting piston and bent axle, and pass the effort that the piston receives to the bent axle, change the reciprocating motion of piston into the rotary motion of bent axle, axle bush 702 is the part that slide bearing and axle journal contacted, the shape is the half cylinder of tile form, it is very smooth, generally make with wear-resisting materials such as bronze, antifriction alloy, under the special circumstances, can make with timber, engineering plastics or rubber.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims

1. The utility model provides a high temperature resistance high strength car piston, includes piston body (6), its characterized in that: the fixed surface of piston body (6) is provided with piston ring groove (2), the top fixed mounting of piston ring groove (2) has piston top (1), the fixed piston skirt portion (3) that is provided with in bottom of piston ring groove (2), the inside fixed of piston skirt portion (3) is provided with refuels subassembly (4), the fixed surface of piston skirt portion (3) is provided with protection subassembly (5), the bottom movable mounting of piston body (6) has connecting rod (7).

2. The high-temperature-resistant high-strength automobile piston as claimed in claim 1, wherein: refuel subassembly (4) including activity room (405), the both sides of activity room (405) are all fixed to be provided with and lead oil pipe (402), lead one side of oil pipe (402) and fixedly be provided with oil storage chamber (404), one side of oil storage chamber (404) is fixed to be provided with into oil pipe (401), one side fixed mounting who advances oil pipe (401) has baffle (403).

3. The high-temperature-resistant high-strength automobile piston as claimed in claim 1, wherein: the protective component (5) comprises a high-temperature-resistant layer (501), wherein an anti-corrosion layer (502) is fixedly arranged on one side of the high-temperature-resistant layer (501), and a wear-resistant layer (503) is fixedly arranged on one side of the anti-corrosion layer (502).

4. The high-temperature-resistant high-strength automobile piston as claimed in claim 1, wherein: the fixed first recess (201) that is provided with in top of piston ring groove (2), the inside activity of first recess (201) is provided with oil ring (204), the fixed second recess (202) that is provided with in bottom of oil ring (204), the inside activity of second recess (202) is provided with limit ring (205), the fixed third recess (203) that is provided with in bottom of limit ring (205), the inside activity of third recess (203) is provided with gaseous ring (206).

5. The high-temperature-resistant high-strength automobile piston as claimed in claim 1, wherein: the piston skirt portion (3) is fixedly provided with a piston pin hole (301) on the surface, and a piston pin body (302) penetrates through the piston pin hole (301).

6. The high-temperature-resistant high-strength automobile piston as claimed in claim 1, wherein: the bottom of the connecting rod (7) is fixedly provided with a bearing bush (702), two sides of the bearing bush (702) are provided with a connecting bolt (701) in a penetrating mode, and the surface of the connecting bolt (701) is provided with a nut (703) in a sleeved mode.