CN201496225U - Piston-type double-acting multi-cylinder injection gas pumping device of air compressor - Google Patents
Piston-type double-acting multi-cylinder injection gas pumping device of air compressor Download PDFInfo
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- CN201496225U CN201496225U CN2009203118936U CN200920311893U CN201496225U CN 201496225 U CN201496225 U CN 201496225U CN 2009203118936 U CN2009203118936 U CN 2009203118936U CN 200920311893 U CN200920311893 U CN 200920311893U CN 201496225 U CN201496225 U CN 201496225U
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- air compressor
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Abstract
The utility model provides a piston-type double-acting multi-cylinder injection gas pumping device of an air compressor, belonging to the technical field of air compression. The device solves the problems of unstable operation, loud noise, high heating value, more loss and the like of the existing piston air pump. The piston-type double-acting multi-cylinder injection gas pumping device of the air compressor comprises an air cylinder body formed by a plurality of pistons, piston rods and cylinder barrels, and has the function of two-way action, wherein the pistons are positioned inside cylinder cavities of the cylinder barrels and are fixed with one end of the piston rods into a whole body; and the other end of the piston rods extends out of the cylinder barrels; the device also comprises an engine seat and a sliding seat, wherein the piston rods are parallel to each other and respectively and vertically fixed on the engine seat along the transverse direction; the cylinder barrels are parallel to each other and respectively and vertically fixed on the sliding seat along the transverse direction; and the sliding seat is driven by a driving mechanism to make reciprocating linear motion correspondingly to the engine seat. By adopting the injection type driving way, the device ensures the operation to be stable as well as the noise and the heating value to be low, and greatly improves the working efficiency and the energy utilization rate.
Description
Technical field
The utility model relates to a kind of air compressor, particularly relates to a kind of piston-type double-acting multi-cylinder injection type pump device of air of air compressor, belongs to the air compression technical field.
Background technique
Air compressor normally pumps air in the gas holder with air pump, early stage piston air pump all is that the motivational drive piston rod promotes piston reciprocates, end at cylinder is provided with check valve, can only a direction job, one-way intake, unidirectional air feed, piston power when backhaul is made idle work, and this is single-acting, its working efficiency and energy utilization rate are all lower, and aeration quantity is less.Sprout the single pump piston formula double-acting pump device of air that has designed [application number: CN200820120698.0] air compressor in order to improve charging efficiency the applicant, done overtesting simultaneously; Work with 1.1 kilowatts of the suitable single-actings of 0.75 kilowatt motor is diligent, so-called double-action is exactly that cylinder body can both be inflated when moving back and forth, the aeration quantity of one-period is the nearly twice of pot type piston formula air compressor theoretically, but the applicant finds its aeration quantity leeway that also has greatly improved in the single-cylinder aerating process, and there is pulsation phenomenon in single cylinder in gas replenishment process, in the multi-cylinder structure, adopt a bent axle to drive a plurality of pistons in addition usually, but the manufacturing process complexity of bent axle, Heavy Weight, the cost height, and noise is big during work, the heating value height, loss is big, has therefore designed double-acting multi-cylinder gas pumping apparatus on original basis.
Summary of the invention
The purpose of this utility model is in order to overcome the problem that the single action piston air pump exists, and provide a kind of working efficiency and using energy source all to be improved, low cost of manufacture, and the mechanism of driven plunger cylinder is simple, noise is small, the piston-type double-acting multi-cylinder injection type pump device of air of the air compressor that heating value is low.
The purpose of this utility model can realize by following technical proposal: the piston-type double-acting multi-cylinder injection type pump device of air of air compressor, comprise that several are by piston, piston rod and cylinder barrel are formed has the beidirectional cylinder block, piston is positioned at the cylinder chamber of cylinder barrel and is fixed as one with an end of piston rod, the other end of piston rod stretches out cylinder barrel, it is characterized in that, this device also comprises support and slide, the piston rod of above-mentioned each cylinder block is parallel to each other and laterally is vertically fixed on the described support separately, the cylinder barrel of above-mentioned each cylinder block is parallel to each other and laterally is vertically fixed on separately on the described slide, and described slide relative support under the drive of a driving mechanism does reciprocating linear motion.
The piston-type double-acting multi-cylinder injection type pump device of air of this air compressor, form by a plurality of piston type pneumatic cylinder bodies, the piston rod of each cylinder block is parallel to each other to be installed on the support and maintains static, and the cylinder barrel of each cylinder block is parallel to each other and is fixed on the slide, slide is done reciprocating linear motion together with each cylinder barrel, this driving mode is " injection-type ", relies on moving back and forth of cylinder barrel to realize sucking gas and two processes of pressurized gas.
In the piston-type double-acting multi-cylinder injection type pump device of air of above-mentioned air compressor, described driving mechanism comprises that one is passed slide and the screw rod parallel with piston rod, go back fixed cover between described slide and the described screw rod and be connected to the nut that matches with screw rod, one end of described screw rod is axially fixed on the support, and the other end of screw rod links to each other with the power spare that can make its rotation.This driving mechanism utilizes nut that rotatablely moving of screw rod is converted into the straight line motion of slide, and simple in structure, guidance quality is good, and motion is reliable.During work, screw rod rotates under the drive of power spare, and nut is passively along screw translation, thereby makes slide also do translational motion.
In the piston-type double-acting multi-cylinder injection type pump device of air of above-mentioned air compressor, link to each other by belt pulley or shaft coupling between the output shaft of described screw rod and power spare.
In the piston-type double-acting multi-cylinder injection type pump device of air of above-mentioned air compressor, described power spare is a motor.Electronic function realizes clockwise and anticlockwise, thereby slide is done reciprocating linear motion.
In the piston-type double-acting multi-cylinder injection type pump device of air of above-mentioned air compressor, the top of described slide and bottom are installed with several rollers respectively.Under the effect of roller, can reduce the vibration of slide, it is operated steadily.
In the piston-type double-acting multi-cylinder injection type pump device of air of above-mentioned air compressor, it is described that to have the beidirectional cylinder block be to be fixed with end cap respectively at the two ends of cylinder barrel, has the inlet hole that communicates with the cylinder chamber on the two end cap respectively, air inlet position is provided with the safety check that can prevent that the gas in the cylinder chamber from outwards overflowing, described piston and piston rod are made the hollow structure that communicates, and has radial clearance between the inwall of piston and cylinder barrel, the annular groove that middle of piston also is shaped on ccontaining piston ring and allows piston ring axially to move back and forth, the inwall of piston ring and cylinder barrel is closely connected to be slidingly matched, and the bottom land of annular groove has a plurality of radial direction through hole that communicate with piston cavity.So-called " double-action " is meant in the process of reciprocal two motions of the relative piston rod of cylinder barrel, all can realize inflation, the gas of compression is discharged from piston rod, the cylinder charge of this structure is big, and its aeration quantity is the nearly twice of single-acting cylinder (promptly having only the cylinder that could inflate when a direction motion).
During work, suppose cylinder barrel when left movement, then the right side volume in cylinder chamber diminishes, and the gas in it is compressed, piston ring slides into the left part of piston simultaneously, the cylinder chamber is communicated with through hole, and compressed gas just is discharged to the gas holder that is connected the piston rod outlet port from piston rod, and this is a gas replenishment process, in this process, the left side volume in cylinder chamber correspondingly becomes greatly, and ambient atmos is finished breathing process from the left side, inlet hole suction cylinder chamber of left end cap; When cylinder barrel moves right, then the gas in cylinder chamber left side compress, gas replenishment process, this moment, right side, cylinder chamber entered breathing process again.
In the piston-type double-acting multi-cylinder injection type pump device of air of above-mentioned air compressor, described radial direction through hole is formed on the centre of annular groove bottom land so that piston ring when in annular groove, sliding to the left and right sides trough rim radial direction through hole all can expose.
In the piston-type double-acting multi-cylinder injection type pump device of air of above-mentioned air compressor, described piston rod is provided with one-way valve with the place of connection of piston.One-way valve has been arranged, can prevent reverse the flowing back in the cylinder chamber of gas in the gas holder.
As another kind of situation, in the piston-type double-acting multi-cylinder injection type pump device of air of above-mentioned air compressor, piston ring on described each piston adopts self lubricating material to make, and described piston ring is two, and these two piston ring surface face relative fixed are installed on the both sides of radial direction through hole.When cylinder barrel is reciprocating, these two piston rings all do not slide, its intake method is to push the piston ring that is positioned at compression end by compressed gas, make it distortion, thereby produce the gap between the inwall of this piston ring and cylinder barrel, pressurized gas enters from this gap, and another piston ring heads on the gas of coming in, so produce tension with the inwall of cylinder barrel, form closely contact, thereby intercept mutually with the cylinder chamber of suction side.
In the piston-type double-acting multi-cylinder injection type pump device of air of above-mentioned air compressor, the outlet port of described each piston rod also is equipped with pressure display table.Whether have fault, if any fault, it is also convenient to repair, and does not need long-time shutdown if being convenient in time grasp each cylinder block, as long as put the spare package of a cylinder block, and just can the frequent air feed of very fast maintenance.
Compared with prior art, the advantage of the piston-type double-acting multi-cylinder injection type pump device of air of this air compressor is:
1, this pump device impels the relative piston motion of each cylinder barrel synchronously by the driving mechanism of injection-type, simple in structure, because each piston rod is installed on the support and maintains static, therefore except the small noise that the power spare that drives screw rod sends, be almost between piston and cylinder barrel, nut and the screw rod quiet, thereby improve working environment, and between nut and the screw rod for being threaded, guidance quality is good during work, operate steadily, and rub little, heating value is low;
2, the cylinder block that this device adopted is the double-acting cylinder body, has overcome the pulsation phenomenon of single-cylinder aerating, and high working efficiency, the aeration quantity that makes a round trip are near 2 times of the single action piston air pump of same volume, and working efficiency and energy utilization rate all obviously improve.
Description of drawings
Fig. 1 is the B-B revolved section schematic representation of Fig. 4;
Fig. 2 is the sectional structure schematic representation of single piston type cylinder;
Fig. 3 is the structural representation that the piston rod and the place of connection of piston are provided with one-way valve;
Fig. 4 is that the A of Fig. 1 is to structural representation;
Fig. 5 is the partial structurtes schematic representation with cylinder block of two piston rings.
Among the figure, 1 piston; The 1a annular groove; The 1b radial direction through hole; 2 piston rods; The 2a endoporus; 3 cylinder barrels; 3a cylinder chamber; 4 supports; 5 slides; 6 screw rods; 7 nuts; 8 power spares; 9 shaft couplings; 10 rollers; 11 end caps; The 11a inlet hole; 12 safety check; 13 piston rings; 14 one-way valves; 15 pressure display tables; 16 steel balls; 17 springs; 18 sleeves; The S radial clearance.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
Figure 1 shows that a kind of piston type double-acting four cylinder injection-type pump devices of air compressor, each cylinder block in this pump device is made up of piston 1, piston rod 2 and cylinder barrel 3, piston 1 is positioned at the cylinder chamber 3a of cylinder barrel 3 and fuses with the right-hand member of piston rod 2, the left end of piston rod 2 stretches out cylinder barrel 3 and laterally is vertically fixed on the support 4, as shown in Figure 1, each cylinder barrel 3 is parallel to each other and laterally is vertically fixed on separately on the slide 5, and slide 5 drives by driving mechanism and does reciprocating linear motion.
Driving mechanism specifically is made up of nut 7 and screw rod 6, nut 7 is fixed in the slide 5, and be threaded with screw rod 6, one end of screw rod 6 is axially fixed on the support 4, the other end links to each other with power spare 8 by shaft coupling 9 or belt pulley, power spare 8 employed in figure 1 is one can realize the motor of clockwise and anticlockwise, certainly also can adopt oil hydraulic motor, in order to make slide 5 operate steadily, can a plurality of rollers 10 be set respectively at the bottom and the top of slide 5, wherein, the roller of bottom has the effect of supporting slide 5, and the roller at top can prevent upwards play of slide 5.
Each cylinder block that is adopted in this pump device all is a kind of double-acting cylinder bodies that can realize bidirectional inflating, concrete structure as shown in Figure 2, two ends at cylinder barrel 3 are fixed with end cap 11 respectively, be evenly distributed with a plurality of inlet hole 11a that communicate with cylinder chamber 3a by circumference respectively on the end face of two end cap 11, in order to reduce the negative effect that dust brings, air-strainer is installed in the outside at inlet hole 11a, thereby the air that enters inlet hole 1a is filtered.The inner side surface of two end cap 11 is equipped with the diaphragm type safety check 12 that is made of rubber valve plate or elastic metallic valve block respectively, and valve block is blocked each inlet hole 11a during normality, during air inlet, ambient atmos is flapped toward valve block to break away from a side of end cap, so just the energy air inlet; During inflation, pressurized gas extruding valve block is close on the end cap valve block, thereby is blocked each inlet hole.Piston 1 in the cylinder barrel 3 is made hollow structure, has radial clearance S between the inwall of all edges, its two ends and cylinder barrel 3, the middle part is shaped on annular groove 1a, a piston ring 13 that sectional shape is rectangular or L shaped is housed in the annular groove 1a, and piston ring 13 can axially move back and forth in annular groove 1a, have equally distributed 48 radial direction through hole 1b in the middle of the bottom of annular groove 1a, left side or the right side of cylinder chamber 3a are communicated with the inner chamber of piston 1, radial direction through hole 1b is formed on the centre of annular groove 1a bottom land so that piston ring 13 when in annular groove, sliding to the left and right sides trough rim through hole all can expose.Piston rod 2 is also made the hollow structure with endoporus 2a, and the endoporus 2a of piston rod 2 communicates with the inner chamber of piston 1, and the other end of piston rod 2 passes left end cap and links to each other with gas holder, in the outlet port of piston rod pressure display table 15 is installed also.
In addition, with the place of connection of piston 1 one-way valve 14 is housed at piston rod 2, as shown in Figure 3, the concrete structure of one-way valve 14 belongs to prior art, usually adopt steel ball 16 and spring 17 to realize,, just steel ball 16 can be backed down when the inlet air pressure of piston rod 2 during greater than the pressure in the gas holder, the gaseous emission that like this, just can will have certain pressure has suffered to caisson.
The concrete working procedure of this pump device is as follows: actuating motor at first, make screw rod 6 rotations, screw rod 6 drives nut 7 to be parallel to the direction motion of piston rod 2, simultaneously, nut 7 drives the slide 5 that fixes with it and does correspondingly translation together with each cylinder barrel 3, if each cylinder barrel 3 is earlier when left, because piston 1 maintains static, therefore, when cylinder barrel 3 during to left, the right side volume of cylinder chamber 3a diminishes, again owing to the valve block of right side safety check 12 is blocked the inlet hole 11a on the right end cap, so the gas on 3a right side, cylinder chamber little by little is compressed, simultaneously, piston ring 13 is slided into the annular groove left end of piston 1 left by the annular groove right-hand member place that initially is positioned at piston 1, cylinder chamber 3a is communicated with piston cavity by through hole 1b, during pressure in gas pressure is higher than gas holder, one-way valve 14 just is opened, pressurized gas just can have been inflated to caisson by the endoporus 2a of piston rod, like this, gas replenishment process has just been finished on right side, cylinder chamber, meanwhile, the left side volume of cylinder chamber 3a correspondingly becomes greatly, and ambient atmos is inhaled into cylinder chamber 3a left side from the inlet hole 11a of left end cap, thereby makes 3a left side in cylinder chamber finish breathing process, after finishing an inflation and breathing process, the motor counter-rotating, cylinder barrel 3 is to right translation, and at this moment piston ring 13 slides to its right-hand member from the left end of annular groove 1a, shown in Fig. 2 dotted portion, and entering gas replenishment process on the left of making the cylinder chamber, right side, cylinder chamber enters breathing process, moves in circles down with this.
Certainly, in actual use, also can select the quantity of cylinder block, generally can select 2 to 8 for use, as shown in Figure 4, select 4 cylinder block in the present embodiment for use according to the size of required aeration quantity.
Embodiment two
Present embodiment and embodiment's one structure is basic identical, its difference is that pressurized air enters the mode of piston cavity from the cylinder chamber, concrete structure as shown in Figure 5, in the annular groove 1a of piston 1, be provided with two piston rings 13 face to face, and between two piston rings 13, be provided with a sleeve 18 that can prevent the inwall translation of their relative cylinder barrels 3, this structure is to rely on the pressure of pressurized gas to make the lip generation resiliently deformable of piston ring 13 on the compression limit, be that gas is come in from the back side of piston ring 13, force the lip of piston ring 13 to shrink inwards, gas just can enter annular groove 1a successively like this, radial direction through hole 1b, endoporus 2a from piston rod 2 goes out at last, and 13 pairs of gases of coming in of another piston ring head on, its lip is pressed bigger and bigger, therefore be attached to tightly on the inwall of cylinder barrel 3, prevent that pressurized gas from scurrying the opposite side in cylinder chamber.
Claims (10)
1. the piston-type double-acting multi-cylinder injection type pump device of air of air compressor, comprise that several are by piston (1), piston rod (2) and cylinder barrel (3) are formed has the beidirectional cylinder block, piston (1) is positioned at the cylinder chamber (3a) of cylinder barrel (3) and is fixed as one with an end of piston rod (2), the other end of piston rod (2) stretches out cylinder barrel (3), it is characterized in that, this device also comprises support (4) and slide (5), the piston rod of above-mentioned each cylinder block (2) is parallel to each other and laterally is vertically fixed on separately on the described support (4), the cylinder barrel of above-mentioned each cylinder block (3) is parallel to each other and laterally is vertically fixed on separately on the described slide (5), and described slide (5) relative support (4) under the drive of a driving mechanism does reciprocating linear motion.
2. the piston-type double-acting multi-cylinder injection type pump device of air of air compressor according to claim 1, it is characterized in that, described driving mechanism comprises that one is passed slide (5) and the screw rod (6) parallel with piston rod (2), go back fixed cover between described slide (5) and the described screw rod (6) and be connected to the nut (7) that matches with screw rod (6), one end of described screw rod (6) is axially fixed on the support (4), and the other end of screw rod (6) links to each other with the power spare that can make its rotation (8).
3. the piston-type double-acting multi-cylinder injection type pump device of air of air compressor according to claim 2 is characterized in that, links to each other by belt pulley or shaft coupling (9) between the output shaft of described screw rod (6) and power spare (8).
4. according to the piston-type double-acting multi-cylinder injection type pump device of air of claim 2 or 3 described air compressors, it is characterized in that described power spare (8) is a motor.
5. the piston-type double-acting multi-cylinder injection type pump device of air of air compressor according to claim 2 is characterized in that, the top of described slide (5) and bottom are installed with several rollers (10) respectively.
6. according to the piston-type double-acting multi-cylinder injection type pump device of air of claim 1 or 2 or 3 or 5 described air compressors, it is characterized in that, it is described that to have the beidirectional cylinder block be to be fixed with end cap (11) respectively at the two ends of cylinder barrel (3), has the inlet hole (11a) that communicates with cylinder chamber (3a) on the two end cap (11) respectively, inlet hole (11a) locates to be provided with the safety check (12) that can prevent that the gas in the cylinder chamber (3a) from outwards overflowing, described piston (1) and piston rod (2) are made the hollow structure that communicates, and has radial clearance (S) between the inwall of piston (1) and cylinder barrel (3), the annular groove (1a) that the middle part of piston (1) also is shaped on ccontaining piston ring (13) and allows piston ring (13) axially to move back and forth, closely connected being slidingly matched of inwall of piston ring (13) and cylinder barrel (3), the bottom land of annular groove (1a) has a plurality of radial direction through hole (1b) that communicate with piston (1) inner chamber.
7. the piston-type double-acting multi-cylinder injection type pump device of air of air compressor according to claim 6, it is characterized in that, described radial direction through hole (1b) is formed on the centre of annular groove (1a) bottom land so that piston ring (13) when in annular groove, sliding to the left and right sides trough rim radial direction through hole (1b) all can expose.
8. the piston-type double-acting multi-cylinder injection type pump device of air of air compressor according to claim 6 is characterized in that, described piston rod (2) is provided with one-way valve (14) with the place of connection of piston (1).
9. the piston-type double-acting multi-cylinder injection type pump device of air of air compressor according to claim 6, it is characterized in that, piston ring (13) on described each piston (1) adopts self lubricating material to make, described piston ring (13) is two, and these two piston rings (13) are fixedly installed in the both sides of radial direction through hole (1b) face to face.
10. the piston-type double-acting multi-cylinder injection type pump device of air of air compressor according to claim 6 is characterized in that, the outlet port of described each piston rod (2) also is equipped with pressure display table (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203118936U CN201496225U (en) | 2009-09-29 | 2009-09-29 | Piston-type double-acting multi-cylinder injection gas pumping device of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203118936U CN201496225U (en) | 2009-09-29 | 2009-09-29 | Piston-type double-acting multi-cylinder injection gas pumping device of air compressor |
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| CN201496225U true CN201496225U (en) | 2010-06-02 |
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| CN2009203118936U Expired - Lifetime CN201496225U (en) | 2009-09-29 | 2009-09-29 | Piston-type double-acting multi-cylinder injection gas pumping device of air compressor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200113A (en) * | 2011-01-21 | 2011-09-28 | 佛山市广顺电器有限公司 | Inverse V-shaped crank pressurization air charging equipment |
| CN101660510B (en) * | 2009-09-29 | 2012-05-23 | 陈人德 | Piston-type double-acting multi-cylinder injection type pump air device of air compressor |
| CN104295467A (en) * | 2014-09-26 | 2015-01-21 | 钟建新 | Reciprocating compressor |
| CN104595151A (en) * | 2014-12-09 | 2015-05-06 | 天津市海雅实业有限公司 | Hydraulic reciprocating compression air pump with quantified and variable pressurization functions |
| CN108708841A (en) * | 2018-05-07 | 2018-10-26 | 广东工业大学 | A kind of inflator pump and its inflation method |
-
2009
- 2009-09-29 CN CN2009203118936U patent/CN201496225U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660510B (en) * | 2009-09-29 | 2012-05-23 | 陈人德 | Piston-type double-acting multi-cylinder injection type pump air device of air compressor |
| CN102200113A (en) * | 2011-01-21 | 2011-09-28 | 佛山市广顺电器有限公司 | Inverse V-shaped crank pressurization air charging equipment |
| CN102200113B (en) * | 2011-01-21 | 2014-07-16 | 佛山市广顺电器有限公司 | Inverse V-shaped crank pressurization air charging equipment |
| CN104295467A (en) * | 2014-09-26 | 2015-01-21 | 钟建新 | Reciprocating compressor |
| CN104595151A (en) * | 2014-12-09 | 2015-05-06 | 天津市海雅实业有限公司 | Hydraulic reciprocating compression air pump with quantified and variable pressurization functions |
| CN108708841A (en) * | 2018-05-07 | 2018-10-26 | 广东工业大学 | A kind of inflator pump and its inflation method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100602 Effective date of abandoning: 20090929 |