CN212359934U

CN212359934U - Graded-opening spray hook arrangement structure

Info

Publication number: CN212359934U
Application number: CN202022196144.2U
Authority: CN
Inventors: 潘昊; 毛平安
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Marine and Genset Power Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-01-15
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a hierarchical opening spout hook arrangement structure belongs to the engine piston and spouts the hook field, solves the single arrangement of spouting the hook of tradition and leads to the extravagant problem of machine oil easily. The spray hook arrangement structure comprises a large spray hook and a small spray hook, wherein the small spray hook is respectively provided with an oil inlet and a small oil spray pipe, and the small oil spray pipe is communicated with the oil inlet; the large oil spraying hook is provided with a large oil spraying pipe, the large oil spraying pipe is sleeved on the small oil spraying pipe, and the large oil spraying pipe is communicated with the oil inlet through a high-pressure valve. The utility model discloses a spout hook arrangement structure, under can satisfying the different rotational speeds of engine, the few oil spout of low-speed, the lifting machine oil pressure has effectively reduced the cost.

Description

Graded-opening spray hook arrangement structure

Technical Field

The utility model relates to an engine piston spouts hook structure, more specifically says that it relates to a hierarchical hook arrangement structure that opens that spouts.

Background

The engine pistons are generally cooled by using spray hooks, and at present, one spray hook is arranged on each piston in most medium-high speed engines. The cross section of the spray hole of the spray hook and the pressure of the oil pressure determine the flow of the spray hook, and the spray hook needs a certain flow to meet the cooling requirement of the piston. In order to ensure the reliability of the piston, i.e. sufficient cooling at all times, the flow rate of the spray hook is generally designed according to the maximum power point. Because the sectional area of a single spray hook is fixed, the sectional area of a spray hole of the spray hook meeting the cooling requirement of the maximum power point piston is ensured to be large enough. For a medium-high speed high-power engine, the maximum power point is generally a high-speed working condition, so that under a low-speed working condition, the flow of the conventional oil pump is greatly reduced due to reduction of the rotating speed, the flow of the large-caliber spray hook is only reduced a little, the proportion of the engine oil flowing away through the spray hook is greatly increased, that is, more engine oil flows away from the spray hook, the pressure of the engine oil is greatly reduced, and the formation of a crankshaft oil film is influenced. For example, the engine oil pressure reaches 500kPa at 1800rpm of a certain engine, and only 170kPa at 600 rpm.

In order to solve the problems and avoid the situation that the low-speed oil pressure is too low, the conventional scheme starts from the aspect of increasing the oil pump flow. For example, the oil pump with a fixed speed ratio can be adopted, the speed ratio can be increased, or the oil pump can be thickened. Such solutions result in increased accessory power consumption of the oil pump, a proportionately greater increase in power consumption at high speed points, and a larger volume of oil pump with increased flow, resulting in increased layout, manufacturing, procurement, and operating costs.

In addition, some high-end engine models employ variable-speed oil pumps (such as electric oil pumps), so that the oil pressure is not affected by the engine speed, and the required oil pressure is always maintained. However, this type of solution requires an electric control system, and the electric oil pump is expensive and requires additional calibration and driving. At low loads, the spray hook still sprays much more oil than is needed for piston cooling, and this part of accessory power is still wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of the prior art, and aims to provide a spray hook arrangement structure which is opened in a grading way, which can meet the requirements of low-speed less oil injection and elevator oil pressure under different rotating speeds of an engine; high-speed multi-oil injection ensures the cooling effect and effectively reduces the cost.

The technical scheme of the utility model is like this: a spray hook arrangement structure opened in a grading manner comprises a large spray hook and a small spray hook, wherein the small spray hook is respectively provided with an oil inlet and a small oil injection pipe, and the small oil injection pipe is communicated with the oil inlet; the large oil spraying hook is provided with a large oil spraying pipe, the large oil spraying pipe is sleeved on the small oil spraying pipe, and the large oil spraying pipe is communicated with the oil inlet through a high-pressure valve.

As a further improvement, the high-pressure valve comprises a high-pressure valve cavity, a high-pressure valve seat, a high-pressure valve ball and a high-pressure spring, the high-pressure valve cavity is arranged inside the small spray hook, one end of the high-pressure valve cavity is communicated with the oil inlet through a first oil duct, the high-pressure valve seat is arranged at the other end of the high-pressure valve cavity, one end of the high-pressure spring is connected with the high-pressure valve seat, the other end of the high-pressure spring is connected with the high-pressure valve ball, and the high-pressure valve ball is connected with the end.

Furthermore, a high-pressure oil duct communicated with the large oil injection pipe is further arranged in the large injection hook, and a second oil duct communicating the high-pressure oil duct with the high-pressure valve cavity is further arranged in the small injection hook.

Further, the large oil injection pipe and the small oil injection pipe are coaxially arranged, and are in clearance fit with each other.

Furthermore, the large spray hook is fixed on the top of the small spray hook in a sealing mode through brazing.

Furthermore, a low-pressure oil duct for communicating the small oil injection pipe with the oil inlet is further arranged in the small injection hook.

Further, a low-pressure valve is further arranged between the low-pressure oil duct and the oil inlet, the low-pressure valve comprises a low-pressure valve cavity, a low-pressure valve seat, a low-pressure valve ball and a low-pressure spring, the low-pressure valve cavity is arranged inside the small spray hook, one end of the low-pressure valve cavity is communicated with the oil inlet, the low-pressure valve seat is installed at the other end of the low-pressure valve cavity, one end of the low-pressure spring is connected with the low-pressure valve seat, the other end of the low-pressure spring is connected with the low-pressure valve ball, the low-pressure valve ball is attached to the end face of the.

Furthermore, the end face of the small spray hook is provided with a processing process port penetrating through the low-pressure valve cavity and communicated with the low-pressure oil duct, the processing process port and the low-pressure oil duct are coaxially arranged, and a sealing block is arranged in the processing process port.

Further, the low-pressure valve is vertically arranged, the high-pressure valve extends towards one side of the small spray hook, and the extending end of the high-pressure valve is arranged in an upward inclined mode.

Advantageous effects

Compared with the prior art, the utility model, have following advantage:

1. the utility model discloses a spout hook arrangement structure, through set up two and spout the hook under every piston, one is little flow and spouts the hook, and another is big flow and spouts the hook, and little flow spouts the hook and keeps opening all the time, when the oil pressure rises to the setting value, big flow spouts the hook and opens automatically, realizes that two spout the hook and open the oil spout simultaneously, through the opening pressure of the big hook of reasonable design, can satisfy under the different rotational speeds of engine, low-speed few oil spout, elevator oil pressure; the purpose of ensuring the cooling effect is achieved by high-speed multi-oil injection, and the waste of engine oil is effectively reduced; the high-pressure valve is adopted to realize automatic opening of the large spray hook, the increase of accessory power consumption can not be caused, the spray hook which is automatically opened according to oil pressure does not need electric control intervention, and the cost is effectively reduced.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is an exploded view of the components of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of one side of the middle or small spray hook of the present invention;

FIG. 4 is a schematic view of the cross-sectional structure of the other side of the middle or small spray hook of the present invention;

fig. 5 is a schematic view of a three-dimensional structure of the middle-sized and large-sized spray hook of the present invention.

Wherein: 1-large spray hook, 2-small spray hook, 3-oil inlet, 4-small oil spray pipe, 5-low pressure valve, 6-large oil spray pipe, 7-high pressure valve, 8-low pressure oil duct, 9-processing process port, 10-sealing block, 11-first oil duct, 12-high pressure oil duct, 13-second oil duct, 51-low pressure valve cavity, 52-low pressure valve seat, 53-low pressure valve ball, 54-low pressure spring, 71-high pressure valve cavity, 72-high pressure valve seat, 73-high pressure valve ball and 74-high pressure spring.

Detailed Description

The invention will be further described with reference to specific embodiments shown in the drawings.

Referring to fig. 1-5, the utility model discloses a hierarchical open spout hook arrangement structure, including spouting hook 1 greatly and spouting hook 2 for a short time, spout hook 1 greatly and install on spouting hook 2 for a short time, spout hook 2 for a short time and be equipped with oil inlet 3 and little oil spout pipe 4 respectively, little oil spout pipe 4 is communicated with oil inlet 3, machine oil accessible oil inlet 3 gets into in spouting hook 2 for a short time, spout the pipe 4 blowout through little oil spout, little oil spout pipe 4 is little discharge pipe, keep the machine oil to circulate continuously, be applicable to the light and medium engine that does not have the problem that starter oil pressure builds slowly by oneself; it spouts oil pipe 6 greatly to be equipped with on spouting hook 1 greatly, spout oil pipe 6 greatly and spout the oil pipe for large-traffic, the pipe diameter is big than the pipe diameter that spouts oil pipe 4 for a short time promptly, spout oil pipe 6 cover greatly and establish on spouting oil pipe 4 for a short time, and spout oil pipe 6 and spout oil pipe 4 coaxial arrangement for a short time greatly, guarantee that two spout oil pipe homoenergetic can spout the oil to the engine piston, and spout oil pipe 6 and oil inlet 3 greatly and communicate through high-pressure valve 7, machine oil in the oil inlet 3 is shunted to spout oil pipe 6 blowout greatly through high-pressure valve 7, realize the oil spout to the engine piston.

Preferably, the high pressure valve 7 comprises a high pressure valve chamber 71, a high pressure valve seat 72, a high pressure valve ball 73 and a high pressure spring 74, wherein, the high-pressure valve cavity 71 is arranged in the small spray hook 2, one end of the high-pressure valve cavity 71 is communicated with the oil inlet 3 through the first oil passage 11, the high-pressure valve seat 72 is arranged at the other end of the high-pressure valve cavity 71, and the high pressure valve seat 72 is connected with the high pressure valve cavity 71 in a sealing way, in particular, the high pressure valve seat 72 and the high pressure valve cavity 71 can tightly press the sealing ring in a threaded connection way, the sealing ring is utilized to achieve the sealing purpose, one end of the high pressure spring 74 is connected with the high pressure valve seat 72, the other end is connected with the high pressure valve ball 73, and the high-pressure valve ball 73 is attached to the end surface of the first oil passage 11, when the oil pressure is greater than the elastic force of the high-pressure spring 74, the high-pressure valve ball 73 may be pressed away from the end surface of the first oil passage 11, thereby achieving high-pressure oil passage communication.

Preferably, a high-pressure oil duct 12 communicated with the large oil injection pipe 6 is further arranged in the large injection hook 1, and a second oil duct 13 communicating the high-pressure oil duct 12 with a high-pressure valve cavity 71 is further arranged in the small injection hook 2, so that high-pressure oil of the high-pressure valve 7 is led to the large oil injection pipe 6.

Preferably, the large oil injection pipe 6 is in clearance fit with the small oil injection pipe 4, so that engine oil can be sprayed out from a clearance between the large oil injection pipe 6 and the small oil injection pipe 4.

Preferably, the large spray hook 1 is fixed at the top of the small spray hook 2 in a sealing manner through brazing, so that the oil circuit between the large spray hook 1 and the small spray hook 2 is relatively sealed while the installation is facilitated.

Preferably, a low-pressure oil duct 8 for communicating the small oil injection pipe 4 with the oil inlet 3 is further arranged inside the small injection hook 2, so that oil path communication is realized.

Preferably, a low-pressure valve 5 is further arranged between the low-pressure oil duct 8 and the oil inlet 3, wherein the low-pressure valve 5 comprises a low-pressure valve cavity 51, a low-pressure valve seat 52, a low-pressure valve ball 53 and a low-pressure spring 54, the low-pressure valve cavity 51 is arranged inside the small spray hook 2, one end of the low-pressure valve cavity 51 is communicated with the oil inlet 3, the low-pressure valve seat 52 is arranged at the other end of the low-pressure valve cavity 51, one end of the low-pressure spring 54 is connected with the low-pressure valve seat 52, the other end of the low-pressure valve ball 53 is connected with the low-pressure valve ball 53, the low-pressure valve ball 53 is attached to the end face of the oil inlet 3, the low-pressure oil duct 8 is communicated with the middle of the. On some heavy engines, because of too much oil drainage during the start, the oil pressure can lead to the engine oil pressure to establish slowly, leads to the main shaft bush oil film to establish the difficulty for the axle bush axle journal wearing and tearing, and the setting through low-pressure valve can help when heavy engine starts to establish the oil pressure, and when the oil pressure promoted to be greater than the elastic force of low-pressure spring 54, the oil pressure can break away from oil inlet 3 terminal surface with low-pressure valve ball 53 extrusion to realize the low-pressure oil circuit intercommunication.

Preferably, the end face of the small spray hook 2 is provided with a processing process port 9 which penetrates through the low-pressure valve cavity 51 and is communicated with the low-pressure oil duct 8, the processing process port 9 and the low-pressure oil duct 8 are coaxially arranged, the processing of the low-pressure oil duct 8 is facilitated, a sealing block 10 is arranged in the processing process port 9, and the sealing block 10 and the processing process port 9 can be tightly pressed on a sealing ring in a threaded connection mode, so that the purpose of sealing an oil path is achieved.

Preferably, low pressure valve 5 vertical layout, high pressure valve 7 spout hook 2 one side to the height and extend and arrange, simultaneously, spout hook 1 greatly and be the L shape, high-pressure oil duct 12 also is the L shape, spout hook 1 terminal surface simultaneously and be provided with processing technology mouth 9 and sealed stifled piece 10 greatly that high-pressure oil duct 12 corresponds, rationally optimized and spouted the hook structure, be convenient for arrange and install to the extension one end tilt up of high pressure valve 7 arranges, the flow of the machine oil of being convenient for.

The utility model discloses a spout hook arrangement structure, through set up two under every piston and spout the hook, one is the small flow and spouts the hook, another is the large-traffic hook that spouts, the small flow spouts the hook and remains to open all the time, continuously spray small flow machine oil, when the oil pressure rises to the setting value, the large-traffic hook that spouts is automatic to be opened, realize two and spout the hook and open the oil spout simultaneously, realize large-traffic oil spout, through the opening pressure of the big hook that spouts of rational design, just can satisfy under the different rotational speeds of engine, the low-speed few oil spout, because the flow of the small hook that spouts is little, the flow resistance is big, can obtain the machine oil pressure that is bigger under the original single hook scheme of spouting under the same oil pump flow; the high-speed many oil spouts, guarantees the purpose of cooling effect, has effectively reduced machine oil waste, and it adopts the high-pressure valve to realize spouting the automation of hook greatly and opens, can not lead to the increase of annex consumed power, and it spouts the hook according to what the oil pressure was opened automatically, does not need automatically controlled intervention, effectively the cost is reduced.

The above is only the preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility model and the utility of the patent.

Claims

1. The spraying hook arrangement structure capable of being opened in a grading manner is characterized by comprising a large spraying hook (1) and a small spraying hook (2), wherein the small spraying hook (2) is respectively provided with an oil inlet (3) and a small oil spraying pipe (4), and the small oil spraying pipe (4) is communicated with the oil inlet (3); the large oil spraying hook (1) is provided with a large oil spraying pipe (6), the large oil spraying pipe (6) is sleeved on the small oil spraying pipe (4), and the large oil spraying pipe (6) is communicated with the oil inlet (3) through a high-pressure valve (7).

2. The staged opening spray hook arrangement structure according to claim 1, wherein the high pressure valve (7) comprises a high pressure valve cavity (71), a high pressure valve seat (72), a high pressure valve ball (73) and a high pressure spring (74), the high pressure valve cavity (71) is arranged inside the small spray hook (2), one end of the high pressure valve cavity (71) is communicated with the oil inlet (3) through the first oil passage (11), the high pressure valve seat (72) is arranged at the other end of the high pressure valve cavity (71), one end of the high pressure spring (74) is connected with the high pressure valve seat (72), the other end of the high pressure spring is connected with the high pressure valve ball (73), and the high pressure valve ball (73) is connected with the end surface of the first oil passage (11) in an attaching manner.

3. The spray hook arrangement structure of claim 2, wherein the large spray hook (1) is further provided with a high-pressure oil passage (12) communicated with the large spray pipe (6), and the small spray hook (2) is further provided with a second oil passage (13) communicated with the high-pressure oil passage (12) and the high-pressure valve cavity (71).

4. The arrangement of staged-opening spray hooks according to claim 1, wherein the large spray bar (6) and the small spray bar (4) are coaxially arranged, and the large spray bar (6) and the small spray bar (4) are in clearance fit.

5. A staged opening spray hook arrangement according to claim 1, wherein the large spray hook (1) is fixed on top of the small spray hook (2) by brazing and sealing.

6. The arrangement of the staged opening spray hooks according to any one of claims 1 to 5, wherein the small spray hook (2) is further provided with a low pressure oil passage (8) inside for communicating the small spray pipe (4) with the oil inlet (3).

7. A staged-opening spray hook arrangement according to claim 6, a low-pressure valve (5) is arranged between the low-pressure oil duct (8) and the oil inlet (3), the low-pressure valve (5) comprises a low-pressure valve cavity (51), a low-pressure valve seat (52), a low-pressure valve ball (53) and a low-pressure spring (54), the low-pressure valve cavity (51) is arranged in the small spray hook (2), one end of the low-pressure valve cavity (51) is communicated with the oil inlet (3), the low-pressure valve seat (52) is arranged at the other end of the low-pressure valve cavity (51), one end of the low-pressure spring (54) is connected with the low-pressure valve seat (52), the other end is connected with the low-pressure valve ball (53), and the low-pressure valve ball (53) is jointed and connected with the end surface of the oil inlet (3), the low-pressure oil channel (8) is communicated with the middle part of the low-pressure valve cavity (51).

8. The staged opening spray hook arrangement structure according to claim 7, wherein the small spray hook (2) has a process port (9) formed in an end surface thereof, the process port (9) penetrates through the low pressure valve cavity (51) and is communicated with the low pressure oil passage (8), the process port (9) and the low pressure oil passage (8) are coaxially arranged, and a sealing block (10) is disposed in the process port (9).

9. A staged-opening spray hook arrangement according to claim 7, wherein the low pressure valve (5) is arranged vertically, the high pressure valve (7) is arranged to extend to one side of the small spray hook (2), and the extending end of the high pressure valve (7) is arranged to be inclined upward.