CN214118443U

CN214118443U - Novel air compressor cylinder head

Info

Publication number: CN214118443U
Application number: CN202023105412.1U
Authority: CN
Inventors: 郝秀成; 朱娟
Original assignee: ZF Commercial Vehicle Systems Qingdao Co Ltd
Current assignee: ZF Commercial Vehicle Systems Qingdao Co Ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-09-03
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a novel air compressor machine cylinder head, include by the cylinder cap, sealed pad, the disk seat board that arrange in proper order from the top down, dispose the bolt on the cylinder cap, accessible bolt is fixed in the crankcase top with sealed pad, disk seat board together. The top of the cylinder cover is provided with an air inlet port, one side of the cylinder cover is provided with an exhaust port, and the other side of the cylinder cover is respectively provided with an inlet port and an outlet port. The bottom of the cylinder cover is provided with a cylinder cover air inlet and a cylinder cover air outlet which are respectively communicated with an air inlet port and an air outlet port. The bottom of the cylinder cover is also provided with a cylinder cover water inlet and a cylinder cover water outlet, the cylinder cover water inlet is communicated with the water inlet port, and the cylinder cover water outlet is communicated with the water outlet port through an upper drainage channel in the cylinder cover. The utility model discloses the structure is optimized more, reduces spare part quantity, reduces manufacturing cost, and assembly efficiency is high, reduces sealed link, improves the sealing reliability, and life is longer.

Description

Novel air compressor cylinder head

Technical Field

The utility model relates to a vehicle air compressor machine technical field, concretely relates to novel air compressor machine cylinder head.

Background

The power of the air compressor for the automobile is input into rotary power by an engine, and the rotary power from the engine is converted into the alternating reciprocating motion of a piston in an air compressor cylinder through a crank connecting rod mechanism. When the piston moves downwards, negative pressure is generated in the cylinder, the exhaust valve is closed, the intake valve is opened, air is sucked into the cylinder through the intake port, the intake valve and the corresponding air passage, and the air suction is completed when the piston moves to the bottom dead center. Along with the continuous rotation of the crank, the piston starts to move upwards until the top dead center, air in the cylinder is rapidly compressed to generate high pressure, at the moment, the exhaust valve is opened, the intake valve is closed, and the compressed air is exhausted through the exhaust valve, the exhaust port and the corresponding air passage. The inlet and exhaust valves are one-way valves that allow only one-way flow of air. The compressed air generated by the air compressor can be used for various pneumatic systems and pneumatic elements such as brakes, air springs and the like.

Because the air compression process is rapid and continuous, a large amount of heat can be generated, and if the heat cannot be effectively dissipated in time, the system is high in temperature. In order to avoid the problems of high temperature damage to parts, reduced service life, carbon deposition and the like, the heat source generating part and the exhaust path need to be cooled. To achieve this, the product is designed with a series of water channels to reduce exhaust gas temperatures and cool associated components. The cooling liquid enters a water channel in the crankcase through the cylinder head through the water inlet, surrounds the cooling cylinder and then enters the cylinder head. In the cylinder head, the water channels and the air passages are alternately distributed, so that the temperature of the compressed air exhausted through the air exhaust port is greatly reduced, and the cooling liquid is exhausted through the water exhaust port.

The existing compressor cylinder head is composed of parts such as an air inlet valve, a valve seat plate, an exhaust valve, a sealing gasket, a partition plate, a cylinder cover and the like, and the valve seat plate, the partition plate and the cylinder cover are sequentially overlapped and assembled together. Form water channels and air channels which are interlaced and interpenetrated. The upper surface and the lower surface of the partition plate are respectively provided with a sealing gasket so as to realize the sealing between the partition plate and the valve seat plate as well as the cylinder cover. Two sets of cylinders, cranks, connecting rods and piston mechanisms are arranged in the crankcase, the structure and the principle of the crank mechanism are the same as those of a crank-connecting rod mechanism of the internal combustion engine, and the crank mechanism and the connecting rod mechanism are not described herein.

The existing compressor cylinder head has more sealing links and large leakage risk. Four groups of sealing surfaces formed among a valve seat plate, a sealing gasket, a partition plate and a cylinder cover of the cylinder head need reliable sealing, so that not only can gas and liquid passages not leak, but also gas and liquid passages cannot leak, the sealing difficulty is higher, the reliability is difficult to guarantee, more parts and components are needed, the cost is high, and more parts influence the assembly efficiency. Therefore, further improvements are needed in the art.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned prior art not enough, the utility model aims to provide a novel air compressor cylinder head solves current compressor cylinder head because the spare part is many, has manufacturing cost height, and assembly efficiency is low, and the sealed degree of difficulty is great, and the reliability is difficult to the problem of guaranteeing.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides a novel air compressor machine cylinder head, includes by the cylinder cap, sealed pad, the valve seat board that arrange in proper order from the top down, dispose the bolt on the cylinder cap, accessible bolt is fixed in the crankcase top with sealed pad, valve seat board together.

The top of the cylinder cover is provided with an air inlet port, one side of the cylinder cover is provided with an exhaust port, and the other side of the cylinder cover is respectively provided with an inlet port and an outlet port.

The bottom of the cylinder cover is provided with a cylinder cover air inlet and a cylinder cover air outlet which are respectively communicated with an air inlet port and an air outlet port.

The bottom of the cylinder cover is also provided with a cylinder cover water inlet and a cylinder cover water outlet, the cylinder cover water inlet is communicated with the water inlet port, and the cylinder cover water outlet is communicated with the water outlet port through an upper drainage channel in the cylinder cover.

Furthermore, the cylinder cover is internally provided with a cylinder cover air inlet cavity, a cylinder cover exhaust cavity and a cylinder cover water inlet cavity which are respectively independent, and the cylinder cover air inlet is communicated with the air inlet port through the cylinder cover air inlet cavity.

The cylinder cover exhaust port is communicated with the exhaust port through the cylinder cover exhaust cavity, and the cylinder cover water inlet is communicated with the water inlet port through the cylinder cover water inlet cavity.

Furthermore, the cylinder cover water outlets are multiple, and all the cylinder cover water outlets are arranged at intervals along the trend of the upper drainage channel in the cylinder cover.

Furthermore, a gasket air inlet hole and a gasket exhaust hole which respectively correspond to the cylinder cover air inlet and the cylinder cover exhaust port are formed in the sealing gasket.

In addition, a gasket water inlet hole corresponding to the position of the water inlet of the cylinder cover is formed in the sealing pad, and a plurality of gasket water outlet holes corresponding to the positions of the water outlets of all the cylinder covers are formed in the sealing pad.

Further, valve seat board inside has valve seat board air inlet chamber, valve seat board exhaust chamber, valve seat board intake chamber and the lower floor drainage channel that is independent respectively, the bottom in valve seat board air inlet chamber is equipped with the air inlet valve piece, and the bottom in valve seat board exhaust chamber is equipped with the air release valve piece.

The valve seat plate air inlet cavity is communicated with the air inlet port through the cylinder cover air inlet, and the valve seat plate air outlet cavity is communicated with the air outlet port through the cylinder cover air outlet.

Furthermore, the valve seat plate water inlet cavity is positioned on one side of the valve seat plate and is communicated with the water inlet port through the cylinder cover water inlet, and the lower drainage channel positioned in the valve seat plate is communicated with the upper drainage channel in the cylinder cover through the cylinder cover water outlet.

By adopting the technical scheme, the utility model discloses a beneficial technological effect is: the utility model discloses the structure is optimized more, reduces spare part quantity, reduces manufacturing cost, and assembly efficiency is high, reduces sealed link, improves the sealing reliability, and life is longer.

Drawings

Fig. 1 is the structural explosion schematic diagram of the novel air compressor cylinder head of the utility model.

Fig. 2 is a front view schematically showing a part of fig. 1, and shows a cylinder head.

FIG. 3 is a cross-sectional view of the cylinder head A-A shown in FIG. 1.

Fig. 4 is a schematic view of the bottom structure of the cylinder head shown in fig. 1.

Fig. 5 is a schematic view of another portion of fig. 1, showing a gasket.

Fig. 6 is a schematic view of the valve seat plate of fig. 1.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

the embodiment is combined with fig. 1 to 6, and a novel cylinder head of an air compressor comprises a cylinder cover 1, a sealing gasket 2 and a valve seat plate 3 which are sequentially arranged from top to bottom, wherein bolts are configured on the cylinder cover 1, and the bolts, the sealing gasket 2 and the valve seat plate 3 can be fixed above a crankcase of the air compressor together. The internal portion of crankcase is provided with cylinder body, piston and crank link mechanism, and the outside fixed mounting of cylinder body is on the crankcase, and the piston sets up in the cylinder body and rather than sliding fit, and crank link mechanism drive reciprocating motion in the cylinder body of piston. The inside of crankcase has the water course, the water course is arranged around the outside of cylinder body for cool down the cylinder body, and the entry and the export of water course are located the top of crankcase respectively.

The top of the cylinder head 1 is provided with an air inlet port 41, one side of which is provided with an air outlet port 42, and the other side of the cylinder head 1 is provided with an air inlet port 43 and an air outlet port 44. The cylinder cover comprises a cylinder cover air inlet cavity 11, a cylinder cover exhaust cavity 12, a cylinder cover water inlet cavity 13 and an upper drainage channel 14, wherein the cylinder cover air inlet cavity 11, the cylinder cover exhaust cavity 12, the cylinder cover water inlet cavity 13 and the upper drainage channel 14 are respectively independent.

The bottom of the cylinder cover 1 is provided with a cylinder cover air inlet 15 and a cylinder cover air outlet 16, and the cylinder cover air inlet 15 and the cylinder cover air outlet 16 are respectively communicated with an air inlet port 41 and an air outlet port 42. Specifically, the cylinder head intake port 15 communicates with the intake port 41 through the cylinder head intake chamber 11, and the cylinder head exhaust port 16 communicates with the exhaust port 42 through the cylinder head exhaust chamber 12.

The bottom of the cylinder cover 1 is further provided with a cylinder cover water inlet 17 and a cylinder cover water outlet 18, the cylinder cover water inlet 17 is communicated with the water inlet port 43, and specifically, the cylinder cover water inlet 17 is communicated with the water inlet port 43 through the cylinder cover water inlet cavity 13. The number of the cylinder cover water outlets 18 is multiple, all the cylinder cover water outlets 18 are arranged at intervals along the trend of the upper drainage channel 14 in the cylinder cover 1, and the cylinder cover water outlets 18 are communicated with the outlet port 44 through the upper drainage channel 14 in the cylinder cover 1.

The valve seat plate 3 is provided therein with a valve seat plate intake chamber 31, a valve seat plate exhaust chamber 32, a valve seat plate intake chamber 33, and a lower layer drain passage 34, and the valve seat plate intake chamber 31, the valve seat plate exhaust chamber 32, the valve seat plate intake chamber 33, and the lower layer drain passage 34 are independent of each other. The bottom in valve seat board inlet chamber 31 is equipped with the air inlet valve piece, and the bottom in valve seat board exhaust chamber 32 is equipped with the air discharge valve piece. The valve seat plate intake chamber 31 communicates with an intake port 41 through a head intake port 15, and the valve seat plate exhaust chamber 32 communicates with an exhaust port 42 through a head exhaust port 16. The valve seat plate water inlet cavity 33 is communicated with an inlet of a crankcase water channel, and the lower drainage channel 34 is communicated with an outlet of the crankcase water channel.

The sealing gasket 2 is provided with a gasket air inlet 21 and a gasket exhaust hole 22 which respectively correspond to the cylinder cover air inlet 15 and the cylinder cover exhaust port 16, and the convex ribs are arranged along the peripheries of the gasket air inlet 21 and the gasket exhaust hole 22 so as to keep good air tightness between the upper surface of the sealing gasket 2 and the cylinder cover 1 and between the lower surface of the sealing gasket 2 and the valve seat plate 3. The filtered air enters the cylinder head inlet cavity 11 through the inlet port 41 and sequentially passes through the cylinder head inlet 15 and the gasket inlet hole 21 to reach the valve seat plate inlet cavity 31. When the piston moves downwards, the interior of the cylinder body is in a negative pressure state, the air inlet valve plate is opened, the air outlet valve plate keeps in a closed state, air in the air inlet cavity 31 of the valve seat plate enters the cylinder body, and the air suction is completed when the piston moves to the bottom dead center.

When the piston starts to move upwards and moves to the top dead center, air in the cylinder is compressed quickly to generate high-pressure air, the exhaust valve plate is opened, the intake valve keeps a closed state, and the high-pressure air enters the valve seat plate exhaust cavity 32 through the exhaust valve plate, passes through the gasket exhaust hole 22, the cylinder cover exhaust port 16 and the cylinder cover exhaust cavity 12 in sequence and is exhausted from the exhaust port 42. The air inlet valve plate and the air outlet valve plate are one-way valves, only air is allowed to flow in a one-way mode, the piston repeats the process, and the air outlet port 42 continuously outputs high-pressure air outwards.

The valve seat plate water inlet cavity 33 is positioned on one side of the valve seat plate and is communicated with the water inlet port 43 through the cylinder cover water inlet 17, and the lower drainage channel 34 positioned in the valve seat plate is communicated with the upper drainage channel 14 in the cylinder cover 1 through the cylinder cover water outlet 18. In addition, the sealing gasket 2 is provided with a gasket water inlet hole 23 corresponding to the position of the cylinder cover water inlet 17, and the sealing gasket 2 is further provided with a plurality of gasket water outlet holes 24 corresponding to the positions of all the cylinder cover water outlets 18.

The cooling water enters the cylinder cover 1 through the water inlet port 43, and sequentially passes through the cylinder cover water inlet cavity 13, the water inlet port 43 and the valve seat plate water inlet cavity 33 to enter the inlet of the crankcase water channel. When the cooling water passes through the crankcase water channel, the cooling water cools the high-temperature high-pressure air in the cylinder body, and then the cooling water enters the lower drainage channel 34 in the valve seat plate 3 through the outlet of the crankcase water channel to continuously cool the high-pressure air in the exhaust cavity 32 of the valve seat plate. The cooling water in the lower drainage channel 34 enters the upper drainage channel 14 in the cylinder head 1 through the cylinder head water outlet 18 and is discharged through the water outlet port 44 at one side of the cylinder head 1, and the cooling water in the upper drainage channel 14 continues to cool the high-pressure air in the cylinder head exhaust cavity 12.

The sealing gasket 2 divides the drainage channel and the exhaust channel into an upper layer type structure and a lower layer type structure. The arrangement structures and the directions of the upper drainage channel, the lower drainage channel, the exhaust channel and the air passage are different, and the arrangement and the directions of the upper drainage channel and the exhaust channel are not limited by the positions of the lower air inlet cavity and the lower air outlet cavity. Therefore, the drainage channel and the exhaust channel on the upper layer can be mutually encircled more tightly, the lengths of the drainage channel and the exhaust channel can be prolonged, the heat exchange area is increased, the heat dissipation efficiency is improved, and the requirements of water and air port positions of customers can be flexibly adapted and met.

In the design of the cylinder head of the novel scheme, the cylinder cover and the valve seat plate are both formed by adopting a gravity casting process.

The utility model discloses newly improve the main spare part of cylinder end, make its technological requirement that adapts to gravity casting. This make full use of gravity casting process can form the advantage of more complicated inner structure, with the function integration of former cylinder cap and baffle cylinder cap 1 of integrative structure to cancel baffle and upper seal pad. The redesigned cylinder cover 1 and valve seat plate 3, the cylinder cover 1 and the valve seat plate 3 keep the original air cavity and water channel arrangement form unchanged, so that the performance of the cylinder cover is not affected. The cylinder cover comprises a cylinder cover air inlet cavity, an exhaust cavity and an upper-layer drainage channel, wherein the upper-layer drainage channel is formed by a sand core, the sand core needs to be firmly positioned in order to avoid the problems of core breaking, core floating and the like, and specifically, blank holes of a plurality of water outlets 18 and water outlet ports 44 of the cylinder cover 1 are formed by the sand core, so that the requirement of firmly positioning the water channel sand core can be met. The structures that can be used to secure the sand cores for the head exhaust cavity 12, created by the needs of the product function itself, are the exhaust ports 42 and the head exhaust ports 16, which are clearly not sufficient to securely locate the exhaust cavity sand cores. At the fixed position distal end apart from above-mentioned exhaust port 42 and cylinder cap gas vent 16, a fabrication hole has been equipped with for fixed psammitolite will produce useless through-hole from this, need carry out the shutoff to the through-hole, the utility model discloses a corresponding position of valve seat board 3 increases the material and realizes the shutoff, and simultaneously, the chamber of admitting air on the valve seat board remains unchanged.

The parts not mentioned in the utility model can be realized by adopting or using the prior art for reference.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.

Claims

1. A novel cylinder head of an air compressor is characterized by comprising a cylinder cover, a sealing gasket and a valve seat plate which are sequentially arranged from top to bottom, wherein the cylinder cover is provided with a bolt, and the cylinder head, the sealing gasket and the valve seat plate can be fixed above a crankcase together through the bolt;

the top of the cylinder cover is provided with an air inlet port, one side of the cylinder cover is provided with an exhaust port, and the other side of the cylinder cover is respectively provided with a water inlet port and a water outlet port;

the bottom of the cylinder cover is provided with a cylinder cover air inlet and a cylinder cover air outlet which are respectively communicated with an air inlet port and an air outlet port;

2. The cylinder head of the novel air compressor as claimed in claim 1, wherein the cylinder head is provided therein with a cylinder head inlet chamber, a cylinder head outlet chamber, and a cylinder head inlet chamber, which are independent of each other, and the cylinder head inlet is communicated with the inlet port through the cylinder head inlet chamber;

3. The cylinder head of the novel air compressor as claimed in claim 1, wherein there are a plurality of cylinder head water outlets, and all the cylinder head water outlets are arranged at intervals along the direction of an upper drainage channel in the cylinder head.

4. The cylinder head of the novel air compressor as claimed in claim 3, wherein the sealing gasket is provided with a gasket inlet hole and a gasket outlet hole corresponding to the cylinder cover air inlet and the cylinder cover air outlet, respectively;

5. The cylinder head of the novel air compressor as claimed in claim 1, wherein the valve seat plate is internally provided with a valve seat plate inlet chamber, a valve seat plate exhaust chamber, a valve seat plate inlet chamber and a lower layer drainage channel which are respectively independent, the bottom of the valve seat plate inlet chamber is provided with an inlet valve plate, and the bottom of the valve seat plate exhaust chamber is provided with an exhaust valve plate;

6. The cylinder head of the novel air compressor as claimed in claim 5, wherein the valve seat plate inlet chamber is located at one side of the valve seat plate and is communicated with the inlet port through the cylinder head inlet, and the lower drainage channel located in the valve seat plate is communicated with the upper drainage channel in the cylinder head through the cylinder head outlet.