CN213870174U - Crankcase for vehicle oilless electric air compressor and oilless electric air compressor - Google Patents

Abstract

The utility model discloses a crankcase for a vehicle oil-free electric air compressor, which comprises a crankcase body, wherein the upper end of the crankcase body is a cylinder body mounting end, the cylinder body mounting end forms a first exhaust hole and a first air inlet hole, the right end of the crankcase body is a cooler mounting end, the cooler mounting end forms a second exhaust hole and a second air inlet hole, the second exhaust hole is communicated with the first exhaust hole through a channel arranged in the side wall of the crankcase body, the second air inlet hole is communicated with the first air inlet hole through a channel arranged in the side wall of the crankcase body, the high-temperature gas compressed in the first stage sequentially flows through the first exhaust hole, the channel and the second exhaust hole to enter the cooler, and the cooled compressed gas in the first stage sequentially flows through the second air inlet hole, the channel and the first air inlet hole to flow into the second-stage compression cavity, so that an external pipeline in the prior art is omitted, and the volume is favorably reduced; and simultaneously, the utility model also discloses an oilless electric air compressor of containing above-mentioned automobile-used oilless electric air compressor is with crankcase.

Description

Crankcase for vehicle oilless electric air compressor and oilless electric air compressor

Technical Field

The utility model relates to an air compressor technical field, concretely relates to automobile-used no oily for electric air compressor crankcase and no oily electric air compressor.

Background

The full oilless compressor is a compressor without liquid lubricating oil in a compressor motion mechanism and a cylinder. The compressor can not pollute the working environment, gas equipment and a system thereof in the working process, can avoid the potential explosion hazard of the compressor due to the existence of hydrocarbon, and has the advantages of oil saving, environmental protection, simple operation and maintenance and the like. Since the advent of all-oil-free compressors, the development of all-oil-free compressors has been fast, and in recent years, all-oil-free compressors have become one of the research hotspots in the compressor industry.

At present, the oil-free compressor is widely applied in industries with higher requirements on air sources. The utility model discloses a bulletin number is CN 205841134U's utility model discloses a piston oil-free air compressor for two-stage compression vehicle, including the motor, the motor shaft setting of motor is inside the crankcase, still be equipped with filtration and flywheel shaft in the crankcase, the motor passes through the motor shaft and drives the flywheel shaft rotation, and the both ends of flywheel shaft are equipped with low pressure piston cylinder and high-pressure piston cylinder, and low pressure piston cylinder upper portion is connected with the low-pressure outlet duct, and low-pressure gas after the one-level compression carries out the secondary compression through low pressure outlet duct entering cooler in, and gas after the cooling gets into the high-pressure piston cylinder again and carries out the final cooling, and final output temperature is lower high-pressure gas. One end of the low-pressure air outlet pipe and one end of the high-pressure air outlet pipe are connected with the cooler through rotary joints, and the lower end of the cooler is provided with an air outlet joint and a high-pressure air outlet pipe. In the structure of the air compressor, compressed gas is transmitted among the low-pressure piston cylinder, the high-pressure piston cylinder and the cooler through external gas pipelines, the pipelines are connected with the compression cylinder and the cooler through pipeline joints, the problem that the structure is complex and the size is overlarge in a connecting mode of the pipeline joints is solved, the structure is simplified by improving the structure or partial structure of the air compressor, and the reduction of the size is the direction of effort of technicians in the field.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an automobile-used no oily electronic crankcase for air compressor, including the crankcase body, the upper end of crankcase body is cylinder body installation end, cylinder body installation end forms cylinder body installation tang, first exhaust hole and first inlet port, the right-hand member of crankcase body is cooler installation end, the cooler installation end is formed with second exhaust hole and second inlet port, the second exhaust hole with first exhaust hole is through setting up passageway intercommunication in the crankcase body lateral wall, the second inlet port with first inlet port is through setting up passageway intercommunication in the crankcase body lateral wall.

Further, a bearing chamber is formed in the crankcase body, first reinforcing ribs are arranged on the inner wall of the bearing chamber, and grooves are formed among the first reinforcing ribs.

Further, the first reinforcing ribs are arranged in a grid mode.

Furthermore, a bearing fixing seat is arranged in the crankcase body.

Furthermore, a concave-convex structure is formed on the inner surface of the bearing fixing seat.

Further, the concave-convex structure is a plurality of circular grooves or thread grooves.

Further, the left end of crankcase body is motor installation end, be formed with motor installation tang on the motor installation end.

Further, mounting brackets are arranged on two side walls of the crankcase body; the lower surface of the mounting bracket is provided with second reinforcing ribs which are arranged in a grid shape; the lower surface of the mounting bracket is also fixedly provided with a shock pad; and a third reinforcing rib is arranged on the upper surface of the mounting bracket.

Further, form the fourth strengthening rib on the crankcase body outer wall, the fourth strengthening rib is the slice and distributes.

The utility model also provides an oilless electric air compressor, including the aforesaid arbitrary automobile-used oilless electric air compressor machine crankcase.

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

(1) the utility model provides a crankcase for automobile-used oily electronic air compressor of nothing, will respectively communicate first exhaust hole and second exhaust hole through form the passageway in this lateral wall of crankcase, and with first inlet port and second inlet port intercommunication, make the high-temperature gas of one-level compression flow through first exhaust hole in proper order, the passageway, the second exhaust hole can get into in the cooler, the one-level compressed gas after the cooling flows through the second inlet port in proper order, the passageway, flow into the second grade compression chamber behind the first inlet port, adopt such design to omit the outside gas pipeline among the prior art, directly make the gas circulation through the inside passage, integrate the function of outside gas pipeline to the crankcase, on the one hand, the air compressor structure has been simplified, on the other hand, omit the outside gas pipeline also can reduce the volume of air compressor machine, also simultaneously for the future air compressor toward the volume more exquisite little, The development trend of more integrated functions plays a certain promoting role.

(2) The utility model provides a crankcase for vehicle does not have oily electric air compressor, through set up the first strengthening rib on the inner wall of bearing room in the crankcase body, and form the recess between the first strengthening rib, reduce the noise reflection wave that level and smooth inner wall produced among the prior art on the one hand, weaken the air current disturbance that the piston recoil in the crankcase produced, thereby effectively reduce the air current pulsation noise; on the other hand, the recess between the first strengthening rib can be used for collecting the powder that inhales or self-lubricating material grinding produced, makes the powder deposit in the recess, avoids the powder to be blown up by the air current, reduces the powder and flies upward to be inhaled to other part spaces or each pneumatic valve surface by the air compressor machine, causes part wearing and tearing or pneumatic valve life-span to reduce, also promotes discharge compressed air's cleanliness simultaneously.

(3) The utility model provides a crankcase for automobile-used oily electronic air compressor of not having, with first strengthening rib design network check type arrangement, the crisscross net strengthening rib can be better weaken this internal piston recoil air current disturbance and the noise that produces of crankcase.

(4) The utility model provides a vehicle oilless motor-driven air compressor crankcase plays the effect of fixed bearing through set up the bearing fixing base in the crankcase body, simultaneously, forms concave-convex structure at the internal surface of bearing fixing base and is favorable to improving the frictional force with the bearing outer wall, strengthens the fixed effect to the bearing, prevents to take place the circumstances such as drop; furthermore, the concave-convex structure is preferably designed into a circular groove or a thread groove, and the fixing effect of the bearing arranged at the concave-convex structure is best by coating surface fixing glue.

(5) The utility model provides an oilless electric air compressor machine, through installing above-mentioned crankcase after, directly realize the circulation and the cooling of one-level compressed gas through inside air channel, need not through outside pipeline, make the air compressor machine structure more retrench, the volume is littleer.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a crankcase for a vehicle oil-free electric air compressor according to the present invention;

fig. 2 is a schematic view of the overall structure of the crankcase for the oil-free electric air compressor for the vehicle according to the present invention;

fig. 3 is a schematic view showing the overall structure of the crankcase for the oil-free electric air compressor for the vehicle according to the present invention;

fig. 4 is a partial structural schematic view of the crankcase for the oil-free electric air compressor for the vehicle of the present invention;

fig. 5 is a schematic view of the overall structure of the oil-free electric air compressor of the present invention;

the reference numbers in the figures denote: 1-a crankcase body; 2-installing a spigot on the cylinder body; 3-a first venting aperture; 4-a first air intake; 5, installing a spigot on the motor; 6-second vent hole; 7-a second air intake; 8-a first reinforcing rib; 9-a groove; 10-bearing fixing seat; 11-a relief structure; 12-mounting a bracket; 13-a second reinforcing rib; 14-a shock pad; 15-a third reinforcing rib; 16-a fourth reinforcing rib; 17-cylinder mounting holes; 18-cooler mounting holes; 19-motor fixing holes; 20-an air inlet; 100-a crankcase; 200-a cooler; 300-cylinder head; 400-motor.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. The embodiments in the present invention, other embodiments obtained by a person of ordinary skill in the art without creative work, all belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1-5, the present embodiment discloses a crankcase for an oil-free electric air compressor for a vehicle, which includes a crankcase body 1, wherein an upper end of the crankcase body 1 is a cylinder body mounting end, and the cylinder body mounting end forms a cylinder body mounting spigot 2, a first exhaust hole 3 and a first air inlet hole 4, in the present embodiment, the first exhaust hole 3 and the first air inlet hole 4 are respectively disposed near side walls of left and right ends of the crankcase body 1, and are preferably symmetrically disposed, in addition, a cylinder body mounting hole 17 is further formed on the cylinder body mounting end, and the cylinder body mounting hole 17 is preferably a threaded hole; the right end of the crankcase body 1 is a cooler mounting end, a second exhaust hole 6 and a second air inlet hole 7 are formed in the cooler mounting end, the second exhaust hole 6 and the second air inlet hole 7 are respectively located on two sides of the cooler mounting end and are arranged close to the cylinder body mounting end, the second exhaust hole 6 is communicated with the first exhaust hole 3 through a channel arranged in the side wall of the crankcase body 1, and the second air inlet hole 7 is communicated with the first air inlet hole 4 through a channel arranged in the side wall of the crankcase body 1; after the cooler 200 and the crankcase body 1 are installed, the second exhaust hole 6 is communicated with the air inlet channel of the cooler 200, if the second exhaust hole 6 is a threaded hole, the cooler is fixed by using a hollow bolt, and when air flows, the air flows into the second exhaust hole 6 through the first exhaust hole 3 and a channel arranged in the side wall of the crankcase body 1, and then enters the cooler 200; the second air inlet 7 is communicated with an exhaust channel of the cooler 200, if the second air inlet 7 is a threaded hole, the cooler is fixed by using a hollow bolt, and when air flows circulate, the air flow cooled in the cooler enters the first air inlet 4 through the exhaust channel of the cooler 200, the second air inlet 7 and a channel arranged in the side wall of the crankcase body 1; the cooler mounting end is also formed with a cooler mounting hole 18, the cooler mounting hole 18 is preferably a threaded hole, to which the cooler can be fixed to the crankcase by means of a hollow bolt installed in the second air discharge hole 6, the second air intake hole 7 and a bolt installed in the cooler mounting hole 18, and the bolt in the cooler mounting hole 18 can be selected by means of the specific structure of the cooler.

Further, form the bearing room in the crankcase body 1, be provided with first strengthening rib 8 on the inner wall of bearing room, it is right the distribution form of first strengthening rib 8 does not do specific restriction, and preferred net type arranges in this example, form recess 9 between the first strengthening rib 8, recess 9 is used for collecting the powder that the self-lubricating material grinding produced, makes the powder in the recess while the machine, reduces the powder and flies upward to cause the part wearing and tearing in other part spaces.

Further, be equipped with bearing fixing base 10 in the crankcase body 1, specifically, the bearing fixing base sets up in the bearing room, be formed with concave-convex structure 11 on the bearing fixing base 10 internal surface, concave-convex structure 11 is used for increasing the frictional force between bearing fixing base 10 and the bearing, does not limit to concave-convex structure 11's specific structure, can be a plurality of bumps, wave structure etc. in this embodiment, preferably a plurality of circular slots or thread groove, more preferably thread groove.

Further, the left end of crankcase body 1 forms the motor installation end, be formed with motor installation tang 5 and motor fixed orifices 19 on the motor installation end, motor fixed orifices 19 are preferably four, and distribute in the position that is close to four angles of motor installation end.

Further, mounting brackets 12 are arranged on two side walls of the crankcase body 1; a second reinforcing rib 13 is arranged on the lower surface of the mounting bracket 12, the second reinforcing rib 13 is used for increasing the thickness and the strength of the mounting bracket 12, and the second reinforcing rib 13 is preferably arranged in a grid manner; a shock absorption pad 14 is further fixedly arranged on the lower surface of the mounting bracket 12, and in this embodiment, the shock absorption pad 14 is preferably a disk-shaped shock absorption pad; the upper surface of the mounting bracket 12 is provided with a third reinforcing rib 15, the third reinforcing rib 15 is respectively fixedly connected with the crankcase body 1 and the mounting bracket 12 and used for reinforcing the connection strength between the mounting bracket 12 and the crankcase body 1 and preventing the mounting bracket 12 from breaking and the like.

Further, a fourth reinforcing rib 16 is formed on the outer wall of the crankcase body 1, and the fourth reinforcing rib 16 is preferably distributed in a sheet shape.

Further, an air inlet 20 is formed in the crankcase body 1, and the air inlet 20 is communicated with the bearing chamber. The number of the above-mentioned components is not specifically limited, preferably 2, and when the above-mentioned components are used, they can be blocked or fully opened according to the actual requirements.

It should be noted that the air intake of the first exhaust hole 3 is the air after the primary compression, and specifically, it is introduced from which air path or which structure, which is not the key point of the present invention, it can be accessed from an external air path, and also can be accessed through a built-in channel; the giving vent to anger of first inlet port 4 gets into the second grade compression region, and equally, it specifically lets in into through which gas circuit or which structure, and this is not the utility model discloses a key, it can follow external gas circuit and get into, also can get into through built-in passageway.

Example 2

As shown in fig. 5, the present embodiment discloses an oil-free electric air compressor, which is characterized by comprising a crankcase 100 for the oil-free electric air compressor for a vehicle, a cooler 200, a cylinder head 300 and a motor 400, which are described in embodiment 1.

During operation starts oil-free electric air compressor, and the gas through the one-level compression flows in first exhaust hole 3 is in through setting up afterwards the passageway in the 1 lateral wall of crankcase body flows extremely get into behind the second exhaust hole 6 the inlet channel of cooler 200 cools off, and the one-level compressed gas after the cooling is followed the exhaust passage of cooler 200 gets into second inlet port 7, then through setting up passageway in the 1 lateral wall of crankcase body flows to first inlet port 4, gets into the second grade compression chamber at last and carries out the second grade compression.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (10)

1. The utility model provides an automobile-used no oily electronic crankcase for air compressor, includes crankcase body (1), the upper end of crankcase body (1) is cylinder body installation end, cylinder body installation end forms cylinder body installation tang (2), first exhaust hole (3) and first inlet port (4), the right-hand member of crankcase body (1) is cooler installation end, cooler installation end is formed with second exhaust hole (6) and second inlet port (7), second exhaust hole (6) with first exhaust hole (3) are through setting up passageway intercommunication in crankcase body (1) lateral wall, second inlet port (7) with first inlet port (4) are through setting up passageway intercommunication in crankcase body (1) lateral wall.

2. The crankcase for the oil-free electric air compressor for the vehicle according to claim 1, wherein a bearing chamber is formed in the crankcase body (1), the inner wall of the bearing chamber is provided with first reinforcing ribs (8), and grooves (9) are formed between the first reinforcing ribs (8).

3. The crankcase for an oil-free electric air compressor for a vehicle according to claim 2, wherein the first reinforcing ribs (8) are arranged in a lattice type.

4. An oil-free electric air compressor crankcase for vehicle according to any claim 1-3, characterized in that the crankcase body (1) is provided with a bearing fixing seat (10).

5. The crankcase for the oil-free electric air compressor for the vehicle according to claim 4, wherein the bearing fixing seat (10) is formed with a concavo-convex structure (11) on an inner surface thereof.

6. The crankcase for an oil-free electric air compressor for a vehicle according to claim 5, wherein the concavo-convex structure (11) is a plurality of circular grooves or screw grooves.

7. The crankcase for the oil-free electric air compressor for the vehicle according to claim 6, wherein the left end of the crankcase body (1) is a motor mounting end, and a motor mounting spigot (5) is formed on the motor mounting end.

8. The crankcase for the oil-free electric air compressor for the vehicle according to claim 7, wherein mounting brackets (12) are arranged on two side walls of the crankcase body (1); a second reinforcing rib (13) is arranged on the lower surface of the mounting bracket (12), and the second reinforcing rib (13) is arranged in a grid shape; a shock absorption pad (14) is fixedly arranged on the lower surface of the mounting bracket (12); and a third reinforcing rib (15) is arranged on the upper surface of the mounting bracket (12).

9. The crankcase for the oil-free electric air compressor for the vehicle according to claim 8, wherein a fourth reinforcing rib (16) is formed on the outer wall of the crankcase body (1), and the fourth reinforcing rib (16) is distributed in a sheet shape.

10. An oil-free electric air compressor characterized by comprising the crankcase for the oil-free electric air compressor for vehicles according to any one of claims 1 to 9.

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