CN216157736U

CN216157736U - Engine lubricating structure and engine

Info

Publication number: CN216157736U
Application number: CN202121724240.8U
Authority: CN
Inventors: 周伟; 王泽胜; 张露
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-04-01
Anticipated expiration: 2031-07-27

Abstract

The utility model belongs to the technical field of engine body lubrication, and particularly relates to an engine lubricating structure and an engine. The engine lubricating structure comprises a machine body and a plurality of cooling lubricating blocks, wherein a main oil gallery arranged along the length direction is arranged in the machine body, a cam hole group and a piston cavity group are arranged on the periphery of the main oil gallery, a plurality of mounting planes are arranged on the bottom side of the machine body, the mounting planes are arranged at intervals and are all located right below the main oil gallery, the cooling lubricating blocks are respectively matched with the mounting planes, a first piston cooling nozzle corresponding to the piston cavity group and a first cam lubricating nozzle corresponding to the cam hole group are arranged on the cooling lubricating blocks, and the cooling lubricating blocks are communicated with the main oil gallery. Through using the engine lubrication structure in this technical scheme, concentrate piston cooling nozzle and the lubricated nozzle of cam together for can enough lubricate the cam, also can realize the cooling effect in the piston chamber, promote reliability and operating efficiency.

Description

Engine lubricating structure and engine

Technical Field

The utility model belongs to the technical field of engine body lubrication, and particularly relates to an engine lubricating structure and an engine.

Background

In the working process of the diesel engine, the cam and the tappet are mutually contacted, and in the high-speed rotating process of the cam shaft, because the lubrication is insufficient, the cam peach top and the tappet are easily adhered to each other, so that the cam shaft is abnormally abraded.

The existing camshaft cam is lubricated by lubricating oil on a push rod or a tappet flowing to a tappet and a cam contact area so as to lubricate the cam, but the lubricating mode easily causes insufficient lubrication of the cam when the oil pressure is low, so that the cam is adhered to the tappet. In addition, on one hand, a main oil passage is required to be sealed for the piston cooling nozzle, and on the other hand, in order to ensure the targeting efficiency, the piston cooling nozzle is usually positioned by adopting a thread seal and a positioning pin, the positioning mode easily causes poor centering effect between the nozzle and a cold oil cavity in the piston, a certain adjustment range is usually reserved, and manual adjustment is carried out, so that the operation efficiency is low.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to solve at least the problem of insufficient lubrication of existing cams. The purpose is realized by the following technical scheme:

a first aspect of the present invention provides an engine lubricating structure including:

the engine comprises an engine body, wherein a main oil gallery arranged along the length direction is arranged in the engine body, a cam hole group and a piston cavity group are arranged on the periphery of the main oil gallery, a plurality of mounting planes are arranged on the bottom side of the engine body, and the mounting planes are arranged at intervals and are all positioned right below the main oil gallery;

the cooling and lubricating blocks are respectively matched with the mounting planes, first piston cooling nozzles corresponding to the piston cavity groups and first cam lubricating nozzles corresponding to the cam hole groups are arranged on the cooling and lubricating blocks, and the cooling and lubricating blocks are communicated with the main oil duct.

By using the engine lubricating structure in the technical scheme, the piston cooling nozzle and the cam lubricating nozzle are respectively arranged on the cooling lubricating block, the piston cooling nozzle can supplement oil to the cold oil cavity of the piston in the piston cavity and timely cool the piston, and meanwhile, the cam lubricating nozzle is arranged, so that the cam can be forcibly lubricated and cooled, and the risk of sticking between the cam and the tappet is reduced.

In addition, according to the engine lubricating structure of the present invention, the following additional technical features may be provided:

in some embodiments of the present invention, the cam hole groups include a first cam hole group and a second cam hole group, and the first cam hole group and the second cam hole group are symmetrically provided on both sides of the main oil gallery, respectively.

In some embodiments of the present invention, the piston cavity group includes a first piston cavity group and a second piston cavity group, and the first piston cavity group and the second piston cavity group are respectively symmetrically arranged on two sides of the main oil gallery.

In some embodiments of the present invention, the cooling stick includes a body, a top end of the body is connected to the mounting plane, the top end of the body is provided with an oil storage groove, and the first piston cooling nozzle and the first cam lubricating nozzle are disposed at two sides of one end of the body opposite to each other and are both communicated with the oil storage groove.

In some embodiments of the present invention, the first cam lubrication nozzle is provided with a machining hole and a cam lubrication nozzle hole, the machining hole and the cam lubrication nozzle hole are arranged at an angle, one end of the machining hole, which is far away from the oil storage tank, is provided with a sealing plug screw, and the cam lubrication nozzle hole corresponds to the cam hole group.

In some embodiments of the present invention, a plurality of dowel holes are formed in the top surface of the body for securing the cooling stick to the mounting surface.

In some embodiments of the present invention, the cooling stick further comprises a second piston cooling nozzle and a second cam lubrication nozzle, and the second piston cooling nozzle and the second cam lubrication nozzle are oppositely disposed at two sides of the other end of the body and are both communicated with the oil storage groove.

In some embodiments of the utility model, the second piston cooling nozzle and the first piston cooling nozzle are identical in construction, and the second cam lubrication nozzle and the first cam lubrication nozzle are identical in construction.

In some embodiments of the present invention, a first oil inlet channel and a second oil inlet channel are further disposed in the machine body, and the first oil inlet channel and the second oil inlet channel are respectively located on two sides of the main oil channel and are communicated with one end of the main oil channel.

The utility model also provides an engine which comprises the engine lubricating structure in the embodiment.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 schematically shows an overall structural cross-sectional view of an engine lubricating structure according to an embodiment of the utility model;

FIG. 2 is an enlarged sectional view of a portion A of the engine lubrication structure of FIG. 1;

FIG. 3 schematically illustrates a cross-sectional structural view of an engine lubrication structure from another perspective according to an embodiment of the present invention;

FIG. 4 schematically illustrates a bottom view of an engine lubrication structure according to an embodiment of the present invention;

FIG. 5 is a schematic view showing the structure of the engine body and the cooling stick in cooperation in the lubricating structure of the engine according to the embodiment of the present invention;

FIG. 6 is a schematic diagram of the overall configuration of the cooling stick in the engine lubrication system of FIG. 1;

FIG. 7 is a schematic cross-sectional view of a cooling stick of the engine lubrication system of FIG. 6;

FIG. 8 is an enlarged cross-sectional view of portion B of the cooling stick of FIG. 7.

The reference numerals in the drawings denote the following:

10: a machine body, 11: main oil gallery, 121: first cam hole group, 122: second cam hole group, 131: first piston chamber group, 132: second piston chamber group, 14: first oil inlet passage, 15: second oil inlet passage, 16: a mounting plane;

20: cooling stick, 21: body, 211: oil reservoir, 212: pin hole, 22: first piston cooling nozzle, 23: first cam lubrication nozzle, 231: machining holes and 232: seal plug, 233: cam lubrication orifice, 24: second cam lubrication nozzle, 25: the second piston cools the nozzle.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Fig. 1 schematically shows an overall structural cross-sectional view of an engine lubricating structure according to an embodiment of the present invention. Fig. 2 is an enlarged sectional view of a portion a of the engine lubrication structure of fig. 1. Fig. 3 schematically shows a structural cross-sectional view of an engine lubrication structure according to another perspective of an embodiment of the present invention. As shown in fig. 1, 2 and 3, the utility model provides an engine lubricating structure and an engine. The engine lubricating structure comprises a machine body 10 and a plurality of cooling lubricating blocks 20, wherein a main oil gallery 11 arranged along the length direction is arranged in the machine body 10, a cam hole group and a piston cavity group are arranged on the periphery of the main oil gallery 11, a plurality of mounting planes 16 are arranged on the bottom side of the machine body 10, the mounting planes 16 are arranged at intervals and are all located right below the main oil gallery 11, the cooling lubricating blocks 20 are respectively matched with the mounting planes 16, a first piston cooling nozzle 22 corresponding to the piston cavity group and a first cam lubricating nozzle 23 corresponding to the cam hole group are arranged on the cooling lubricating blocks 20, and the inside of the cooling lubricating blocks 20 is communicated with the main oil gallery 11.

By using the engine lubricating structure in the technical scheme, the piston cooling nozzle and the cam lubricating nozzle are respectively arranged on the cooling lubricating block 20, the piston cooling nozzle can supplement oil to a cold oil cavity of the piston in the piston cavity and timely cool the piston, and meanwhile, the cam lubricating nozzle is arranged, so that the cam can be forcibly lubricated and cooled, and the risk of sticking the cam and the tappet is reduced.

In some embodiments of the present invention, as shown in fig. 1, 2, and 3, the cam hole groups include a first cam hole group 121 and a second cam hole group 122, and the first cam hole group 121 and the second cam hole group 122 are symmetrically provided on both sides of the main oil gallery 11, respectively. The engine body 10 in the present embodiment is of a V-shaped structure, the main oil gallery 11 is disposed at the bottom of the V-angle of the engine body 10, and the cam shaft hole groups are symmetrically disposed on the left and right sides of the main oil gallery 11, so that the engine oil in the main oil gallery 11 can be utilized to lubricate the cams and the tappets in the cam shaft hole groups to a great extent.

In some embodiments of the present invention, as shown in fig. 1 and 2, the piston chamber group includes a first piston chamber group 131 and a second piston chamber group 132, and the first piston chamber group 131 and the second piston chamber group 132 are symmetrically disposed on both sides of the main oil gallery 11, respectively. The main oil duct 11 is arranged at the bottom of the V angle of the V-shaped machine body 10, the piston cavity groups are symmetrically arranged on the left side and the right side of the main oil duct 11, and oil can be supplemented to the cold oil cavity of the piston in the piston cavity by using engine oil in the main oil duct 11 to a great extent, so that the purpose of cooling the piston is achieved.

In some embodiments of the present invention, as shown in fig. 4, 5 and 6, the cooling stick 20 includes a body 21, a top end of the body 21 is connected to the mounting plane 16, an oil reservoir 211 is formed at the top end of the body 21, and the first piston cooling nozzle 22 and the first cam lubricating nozzle 23 are oppositely disposed at both sides of one end of the body 21 and are communicated with the oil reservoir 211. The top end of the body 21 is hermetically connected with the mounting plane 16 of the machine body 10, so that the oil in the oil storage tank 211 at the top end of the body 21 can be stored in a sealed manner, and the stable oil supply to the cam hole group and the piston cavity group is facilitated.

Specifically, in this embodiment, a sealing gasket is further disposed between the main body 21 and the mounting plane 16, and the main body 21 is fixed on the mounting plane 16 by a fixing member such as a bolt, and a sealing manner of fastening the gasket and the bolt is adopted, so that a risk of oil leakage of the main oil gallery 11 can be eliminated, and reliability is improved.

Specifically, as shown in fig. 6, one end of the first piston cooling nozzle 22 in the present embodiment is connected to the bottom end of the body 21 and is communicated with the bottom end of the oil storage tank 211, so that it is ensured that one end of the first piston cooling nozzle 22 stably collects oil in the oil storage tank 211, and the other end can timely cool the piston in the piston cavity.

In some embodiments of the present invention, as shown in fig. 7 and 8, the first cam lubrication nozzle 23 is provided with a machining hole 231 and a cam lubrication nozzle hole 233, the machining hole 231 and the cam lubrication nozzle hole 233 are disposed at an angle, one end of the machining hole 231, which is far away from the oil storage tank 211, is provided with a seal screw plug 232, and the cam lubrication nozzle hole 233 corresponds to the cam hole group. Due to the limitation of processing and the like, a processing hole 231 needs to be processed on the first cam lubrication nozzle 23, a cam lubrication nozzle hole 233 is processed at a position corresponding to the cam hole, and finally a seal screw plug 232 is arranged at one end of the processing hole 231 far away from the oil storage groove 211, so that the first cam lubrication nozzle 23 is manufactured. Wherein, sealed plug screw 232 can block the one end that the oil storage tank 211 was kept away from to the processing hole 231 to make the fluid that is located in the oil storage tank 211 can flow to the lubricated orifice 233 of cam, thereby lubricate the downthehole cam of cam and tappet, reduce the cam and produce the sticky risk with the tappet.

Specifically, the diameter of the cam lubrication nozzle hole 233 in the present embodiment is 1mm or less.

In some embodiments of the present invention, as shown in FIG. 6, a plurality of dowel holes 212 are provided in the top surface of the body 21, and the plurality of dowel holes 212 are used to secure the cooling stick 20 to the mounting plane 16. In the embodiment, two positioning pin holes 212 are adopted, the two positioning pin holes 212 are arranged oppositely relative to the body 21 in an oblique angle, and a 2-surface 1-pin is adopted to position the piston cooling nozzle, so that the accurate positioning of the piston cooling nozzle can be realized, and the influence of human factors on the nozzle beating efficiency is eliminated.

In some embodiments of the present invention, as shown in fig. 6, the cooling stick 20 further comprises a second piston cooling nozzle 25 and a second cam lubrication nozzle 24, and the second piston cooling nozzle 25 and the second cam lubrication nozzle 24 are oppositely disposed at both sides of the other end of the body 21 and are both communicated with the oil reservoir 211. Because the engine body 10 in this embodiment is of a V-shaped structure, the cam hole groups and the piston cavity groups are disposed on both sides of the main oil gallery 11, the first cam lubrication nozzle 23 and the second cam lubrication nozzle 24 can lubricate the cam hole groups on both sides of the main oil gallery 11, and the first piston cooling nozzle 22 and the second piston cooling nozzle 25 can cool the piston cavity groups on both sides of the main oil gallery 11, thereby improving stability and reliability.

In some embodiments of the present invention, the second piston cooling nozzle 25 and the first piston cooling nozzle 22 are identical in structure, and the second cam lubrication nozzle 24 and the first cam lubrication nozzle 23 are identical in structure.

In some embodiments of the present invention, as shown in fig. 3, a first oil inlet passage 14 and a second oil inlet passage 15 are further disposed in the machine body 10, and the first oil inlet passage 14 and the second oil inlet passage 15 are respectively located at two sides of the main oil gallery 11 and are communicated with one end of the main oil gallery 11. Two oil inlet channels are arranged on two sides of the main oil duct 11 of the machine body 10 in the embodiment, so that the engine oil pressure supplement of the main oil duct 11 can be accelerated, and the cooling and lubricating efficiency and stability are improved.

Specifically, in the engine lubricating structure according to the present embodiment, the first tappet hole group and the second tappet hole group are provided on both sides of the 10V-angle of the engine body, the tappets are placed in both the tappet hole groups, and the tappets contact the cams in the corresponding cam hole groups. The diesel engine is at the course of the work, and the cam is high-speed rotatory to drive the tappet and transport from top to bottom, owing to be equipped with cooling lubrication piece 20 under main oil duct 11, and still be equipped with the cam lubrication hole on the cooling lubrication piece 20, can realize the force-feed lubrication and the cooling of cam, effectively reduce the risk that cam and tappet produced the adhesion.

The utility model also provides an engine which comprises the engine lubricating structure.

By using the engine in the technical scheme, the piston cooling nozzle and the cam lubricating nozzle are respectively arranged on the cooling and lubricating block 20, the piston cooling nozzle can supplement oil to a cold oil cavity of the piston in the piston cavity and timely cool the piston, and meanwhile, the cam lubricating nozzle is arranged, so that the cam can be forcibly lubricated and cooled, and the risk of sticking between the cam and a tappet is reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An engine lubricating structure, characterized by comprising:

2. The engine lubrication structure according to claim 1, wherein the cam hole groups include a first cam hole group and a second cam hole group, and the first cam hole group and the second cam hole group are symmetrically provided on both sides of the main oil gallery, respectively.

3. The engine lubrication structure according to claim 1, wherein the piston chamber group includes a first piston chamber group and a second piston chamber group, and the first piston chamber group and the second piston chamber group are symmetrically provided on both sides of the main oil gallery, respectively.

4. The engine lubrication structure according to claim 1, wherein the cooling stick includes a body, a top end of the body is connected to the mounting plane, an oil reservoir is provided at the top end of the body, and the first piston cooling nozzle and the first cam lubrication nozzle are disposed at both sides of one end of the body and are both communicated with the oil reservoir.

5. The engine lubrication structure according to claim 4, wherein the first cam lubrication nozzle is provided with a machining hole and a cam lubrication nozzle hole, the machining hole and the cam lubrication nozzle hole are arranged at an angle, a sealing screw plug is arranged at one end of the machining hole, which is far away from the oil storage tank, and the cam lubrication nozzle hole corresponds to the cam hole group.

6. The engine lubrication structure according to claim 4, wherein a plurality of dowel holes are provided in the top surface of the body, and the plurality of dowel holes are used to fix the cooling stick to the mounting plane.

7. The engine lubrication structure according to claim 4, wherein the cooling stick further comprises a second piston cooling nozzle and a second cam lubrication nozzle, and the second piston cooling nozzle and the second cam lubrication nozzle are oppositely arranged on two sides of the other end of the body and are communicated with the oil storage groove.

8. The engine lubrication structure of claim 7, wherein the second piston cooling nozzle and the first piston cooling nozzle are identical in structure, and the second cam lubrication nozzle and the first cam lubrication nozzle are identical in structure.

9. The engine lubricating structure according to claim 1, wherein a first oil inlet passage and a second oil inlet passage are further provided in the engine body, and the first oil inlet passage and the second oil inlet passage are respectively located on both sides of the main oil gallery and communicate with one end of the main oil gallery.

10. An engine characterized by having the engine lubricating structure according to any one of claims 1 to 9.