CN204755221U - Adopt rack and pinion meshing to realize simultaneous movement's free piston compressor - Google Patents

Adopt rack and pinion meshing to realize simultaneous movement's free piston compressor Download PDF

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Publication number
CN204755221U
CN204755221U CN201520404462.XU CN201520404462U CN204755221U CN 204755221 U CN204755221 U CN 204755221U CN 201520404462 U CN201520404462 U CN 201520404462U CN 204755221 U CN204755221 U CN 204755221U
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cylinder
piston
compressor
gear
expansion box
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CN201520404462.XU
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郑涛
邬小丽
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State Grid Corp of China SGCC
State Grid Sichuan Electric Power Co Ltd
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State Grid Corp of China SGCC
State Grid Sichuan Electric Power Co Ltd
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Abstract

The utility model discloses an adopt rack and pinion meshing to realize simultaneous movement's free piston compressor, the expansion box is connected with bounce cylinder and compresser cylinder, be provided with the power cylinder in the expansion box, the power cylinder sets up in bounce cylinder and compresser cylinder, be provided with power piston in the power cylinder, power piston is connected with the piston rod, the piston rod is connected with damper piston and compressor piston, the damper piston sets up in bounce cylinder, compressor piston sets up in the compresser cylinder, the compresser cylinder is provided with snifter valve no. 1 and air bleeding valve no. 1, and the power cylinder is provided with the gear, is provided with the gear shaft in the gear, and the gear shaft is fixed with the power cylinder, is provided with the rack on the gear, rack and gear engagement, and the rack is fixed with the piston rod, the power cylinder is provided with suction hole and exhaust hole. This free piston compressor can accomplish to the piston that moves group that the quality is equal completely, inertial force complete equilibrium during the machine operation, and the bearing capacity is big, realizes the accurate control of stroke.

Description

Rack and pinion engagement is adopted to realize the free-piston compressor be synchronized with the movement
Technical field
The utility model relates to a kind of compressor, especially relates to a kind ofly adopting rack and pinion engagement to realize the free-piston compressor be synchronized with the movement.
Background technique
Compressor, is promoted to a kind of driven fluid machinery of pressurized gas by low-pressure gas.It is the heart of refrigeration system, it sucks the refrigerant gas of low-temp low-pressure from sucking pipe, after driving piston to compress it by motor rotation, the refrigerant gas of High Temperature High Pressure is discharged to outlet pipe, for refrigeration cycle provides power, thus realize the refrigeration cycle of compression → condensation (heat release) → expand → evaporate (heat absorption).Compressor divides piston compressor, helical-lobe compressor, centrifugal compressor etc.Piston compressor is generally made up of housing, motor, cylinder body, piston, control apparatus (starter and heat protector) and cooling system.The type of cooling has oil cooling and naturally cools two kinds.The compressor of general household refrigerator and air conditioner is using single-phase alternating current as power supply, and their structural principle is substantially identical.The refrigeration agent that both use is different.Compression ratio is a kind of technology representation of pressure difference, and its implication is the absolute pressure of high pressure side absolute pressure divided by low voltage side.The calculating of compression ratio must adopt absolute pressure value.In order to avoid making compression ratio calculated value occur negative value, calculating pressure than time must adopt absolute pressure, instead of manometer pressure.Adopt absolute pressure value just can make compression ratio calculated value on the occasion of, so just meaningful.In refrigeration and air conditioner industry, the compressor that adopts has 5 large types: reciprocating, screw type, rotary type, eddy type and centrifugal, and wherein reciprocating is apply maximum a kind of compressors in small-sized and medium-sized business-use refrigrating system.Screw compressor is mainly used in large commercial and industrial system.Rotary compressor, scroll compressor and reciprocal compressor are mainly used in family expenses and small capacity business air conditioner device, and centrifugal compressor is then widely used in the air-conditioning system of large buildings.The complex structure of traditional compressor, mechanical efficiency is low, and piston group quality is unequal, and inertial force during machine run can not balance, and need the basis that configuration is heavy, and bearing capacity is little, the error of Stroke Control is large.
Model utility content
The purpose of this utility model is the complex structure overcoming above-mentioned existing compressor, mechanical efficiency is low, piston group quality is unequal, inertial force during machine run can not balance, need the basis that configuration is heavy, and bearing capacity is little, the problem that the error of Stroke Control is large, devise and a kind ofly adopt rack and pinion engagement to realize the free-piston compressor be synchronized with the movement, to dynamic piston group, this free-piston compressor can accomplish that quality is completely equal, full balance of shaking force during machine run, do not need to configure heavy basis, bearing capacity is large, realize the accurate control of stroke, solve the complex structure of existing compressor, mechanical efficiency is low, piston group quality is unequal, inertial force during machine run can not balance, need the basis that configuration is heavy, and bearing capacity is little, the problem that the error of Stroke Control is large.
The purpose of this utility model is achieved through the following technical solutions: adopt rack and pinion engagement to realize the free-piston compressor be synchronized with the movement, comprise inner hollow and the expansion box of sealing, the symmetrical two ends of described expansion box are connected to bounce cylinder and compresser cylinder, actuating cylinder is provided with in expansion box, be arranged on after the two ends of actuating cylinder are each passed through expansion box in corresponding bounce cylinder and compresser cylinder, two power pistons are provided with in actuating cylinder, the outer wall of power piston all contacts with the interior wall seamless of actuating cylinder, power piston mutually away from one end be all connected with piston rod, wherein a piston rod is connected with damper piston, damper piston to be arranged in bounce cylinder and to contact with wall seamless in bounce cylinder, another root piston rod is connected with compressor piston, compressor piston to be arranged in compresser cylinder and to contact with wall seamless in compresser cylinder, the outer wall of expansion box is fixed with fuel nozzle, and fuel nozzle is communicated with actuating cylinder inside through after expansion box, compresser cylinder away from the outer wall of actuating cylinder being provided with Aspirating valves one and outlet valve one, the wall of the equal pierce compressed machine cylinder of Aspirating valves one and outlet valve one, Aspirating valves one and outlet valve one are all arranged in the areal extent of compressor piston, the outer wall of actuating cylinder is provided with gear, gear shaft is provided with in gear, gear shaft is fixed with the center of actuating cylinder through after gear, gear is provided with two toothed rack, tooth bar all and gears meshing, gear is arranged between two toothed rack, and each toothed rack is fixed with a wherein piston rod respectively, the outer wall of actuating cylinder is provided with suction port and exhaust port, suction port is all communicated with expansion box with the inside of actuating cylinder with exhaust port two ends, and gear is arranged between suction port and exhaust port.
The sidewall that described expansion box is connected with compresser cylinder is provided with several outlet valves two, the two ends of outlet valve two are communicated with compresser cylinder with expansion box respectively, and actuating cylinder is arranged on outlet valve two around the intra-zone formed; The sidewall of described compresser cylinder is provided with several Aspirating valvess two, the sidewall of Aspirating valves two pierce compressed machine cylinder, Aspirating valves two is arranged between compressor piston and power piston.
The outer wall of described actuating cylinder is provided with exhaust tube, and exhaust tube one end is communicated with the inside of actuating cylinder, and the other end is arranged on expansion box outside through after expansion box.
Described compresser cylinder is fixed with sucking pipe and outlet pipe away from the outer wall of actuating cylinder, and one end of Aspirating valves one is arranged in the port of sucking pipe, and one end of outlet valve one is arranged in the port of outlet pipe.
In sum, the beneficial effects of the utility model are: this free-piston compressor can accomplish that quality is completely equal, full balance of shaking force during machine run to dynamic piston group, do not need to configure heavy basis, bearing capacity is large, realizes the accurate control of stroke, solves the complex structure of existing compressor, mechanical efficiency is low, piston group quality is unequal, and inertial force during machine run can not balance, and needs the basis that configuration is heavy, and bearing capacity is little, the problem that the error of Stroke Control is large.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark and corresponding component title in accompanying drawing: 1-bounce cylinder; 2-damper piston; 3-damper piston bar; 4-power piston one; 5-set screw; 6-tooth bar one; 7-fuel nozzle; 8-actuating cylinder; 9-outlet valve two; 10-compresser cylinder; 11-Aspirating valves two; 12-compressor piston; 13-sucking pipe; 14-Aspirating valves one; 15-compression piston bar; 16-outlet valve one; 17-outlet pipe; 18-power piston two; 19-exhaust tube; 20-exhaust port; 21-expansion box; 22-gear; 23-suction port; 24-gear shaft; 25-tooth bar two.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but mode of execution of the present utility model is not limited only to this.
Embodiment 1:
As shown in Figure 1, rack and pinion engagement is adopted to realize the free-piston compressor be synchronized with the movement, comprise inner hollow and the expansion box 21 of sealing, the symmetrical two ends of described expansion box 21 are connected to bounce cylinder 1 and compresser cylinder 10, actuating cylinder 8 is provided with in expansion box 21, be arranged on after the two ends of actuating cylinder 8 are each passed through expansion box 21 in corresponding bounce cylinder 1 and compresser cylinder 10, two power pistons are provided with in actuating cylinder 8, the outer wall of power piston all contacts with the interior wall seamless of actuating cylinder 8, power piston mutually away from one end be all connected with piston rod, wherein a piston rod is connected with damper piston 2, damper piston 2 to be arranged in bounce cylinder 1 and to contact with wall seamless in bounce cylinder 1, another root piston rod is connected with compressor piston 12, compressor piston 12 to be arranged in compresser cylinder 10 and to contact with wall seamless in compresser cylinder 10, the outer wall of expansion box 21 is fixed with fuel nozzle 7, fuel nozzle 7 is communicated with actuating cylinder 8 inside through after expansion box 21, the outer wall of compresser cylinder 10 away from actuating cylinder 8 is provided with Aspirating valves 1 and outlet valve 1, the wall of Aspirating valves 1 and the equal pierce compressed machine cylinder 10 of outlet valve 1, Aspirating valves 1 and outlet valve 1 are all arranged in the areal extent of compressor piston 12, the outer wall of actuating cylinder 8 is provided with gear 22, gear shaft 24 is provided with in gear 22, gear shaft 24 is fixed through after the gear 22 and center of actuating cylinder 8, gear 22 is provided with two toothed rack, tooth bar all engages with gear 22, gear 22 is arranged between two toothed rack, and each toothed rack is fixed with a wherein piston rod respectively, the outer wall of actuating cylinder 8 is provided with suction port 23 and exhaust port 20, suction port 23 is all communicated with expansion box 21 with the inside of actuating cylinder 8 with exhaust port 20 two ends, and gear 22 is arranged between suction port 23 and exhaust port 20, the sidewall that described expansion box 21 is connected with compresser cylinder 10 is provided with several outlet valves 29, and the two ends of outlet valve 29 are communicated with compresser cylinder 10 with expansion box 21 respectively, and actuating cylinder 8 is arranged on outlet valve 29 around the intra-zone formed, the sidewall of described compresser cylinder 10 is provided with several Aspirating valvess 2 11, the sidewall of Aspirating valves 2 11 pierce compressed machine cylinder 10, Aspirating valves 2 11 is arranged between compressor piston 12 and power piston.For convenience of description, by two power pistons called after power piston 1 and power piston 2 18 respectively, two piston rods called after compression piston bar 15 and buffering piston rod 3 respectively, the two ends of compression piston bar 15 are connected with compressor piston 12 and power piston 2 18 respectively, the two ends of damper piston bar 3 are connected with power piston 1 and damper piston 2 respectively, two toothed rack are called after tooth bar 1 and tooth bar 2 25 respectively, tooth bar 1 and tooth bar 2 25 all engage with gear 22, tooth bar 1 is fixed by set screw 5 and damper piston bar 3, tooth bar 2 25 is fixed by set screw 5 and compression piston bar 15, motor is as the power supplying apparatus of compressor, this is existing technology, by Aspirating valves 2 11 air-breathing, air in simultaneous buffering cylinder 1 is also compressed, gear 22 is rotated, tooth bar 1 and tooth bar 2 25 engage mobile, damper piston 2 and compressor piston 12 run towards the bounce cylinder 1 of correspondence and compresser cylinder 10, stroke at the end, power piston 1 and power piston 2 18 are taken up in order of priority and are opened suction port 23 and exhaust port 20, pressurized air in expansion box 21 enters actuating cylinder 8 and carries out gas replenishment process.During recovery stroke, compresser cylinder 10 is by Aspirating valves 1 air-breathing, and the air in compresser cylinder 10 is compressed and inputs expansion box 21 by outlet valve 29, and the air in actuating cylinder 8 is compressed.In such an embodiment, power piston 1 and power piston 2 18 are replied under leaning on the pressurized air effect in the compressed air energy of savings in bounce cylinder 1 and compresser cylinder 1 clearance volume.When recovery stroke at the end, fuel 7 enters actuating cylinder 8 ignition through fuel nozzle spray, in power gas 8, then carry out the working procedure of compression ignition engine of two-stroke, direct-current ventilation.This compressor adopts the structure of gear 22 and tooth bar engagement as the device keeping compression piston bar 15 and the synchronous operation of buffering piston rod 3, mechanism's bearing capacity of gear 22 and tooth bar engagement is large, transmission accuracy is high, realize the accurate control of stroke, to dynamic piston group, final realization can accomplish that quality is completely equal, full balance of shaking force during machine run, do not need to configure heavy basis, bearing capacity is large, realize the accurate control of stroke, solve the complex structure of existing compressor, mechanical efficiency is low, piston group quality is unequal, inertial force during machine run can not balance, need the basis that configuration is heavy, and bearing capacity is little, the problem that the error of Stroke Control is large.
The outer wall of described actuating cylinder 8 is provided with exhaust tube 19, and exhaust tube 19 one end is communicated with the inside of actuating cylinder 8, and the other end is outside through being arranged on expansion box 21 after expansion box 21.When there is contingency, the work of compressor stops, pressurized gas remaining in actuating cylinder 8 are needed to discharge, at this moment the effect of exhaust tube 19 just embodies, generally exhaust tube 19 cuts off to cut out, just exhaust tube 19 is used, as the relief pipeline of actuating cylinder 8 when something unexpected happened and power mechanism are closed.
The outer wall of described compresser cylinder 10 away from actuating cylinder 8 is fixed with sucking pipe 13 and outlet pipe 17, and one end of Aspirating valves 1 is arranged in the port of sucking pipe 13, and one end of outlet valve 1 is arranged in the port of outlet pipe 17.In order to ensure that in Aspirating valves 1 suction gas process, air-breathing is more stable, and the efficiency of air-breathing can reach best, so be provided with sucking pipe 13, for steady air flow with prevent from impurity from entering playing protection Aspirating valves 1 acting on; More stable in order to ensure to be vented in outlet valve 1 Exhaust Gas process, and the efficiency of exhaust can reach best, is provided with outlet pipe 17, and air-flow outlet valve 1 can discharged keeps stable, prevents from causing air-flow to sputter, occurs security incident.
The above; it is only preferred embodiment of the present utility model; not any pro forma restriction is done to the utility model; every according to technology of the present utility model, method in fact to any simple modification, equivalent variations that above embodiment does, all fall within protection domain of the present utility model.

Claims (4)

1. adopt rack and pinion engagement to realize the free-piston compressor be synchronized with the movement, it is characterized in that: comprise inner hollow and the expansion box (21) of sealing, the symmetrical two ends of described expansion box (21) are connected to bounce cylinder (1) and compresser cylinder (10), actuating cylinder (8) is provided with in expansion box (21), be arranged on after the two ends of actuating cylinder (8) are each passed through expansion box (21) in corresponding bounce cylinder (1) and compresser cylinder (10), two power pistons are provided with in actuating cylinder (8), the outer wall of power piston all contacts with the interior wall seamless of actuating cylinder (8), power piston mutually away from one end be all connected with piston rod, wherein a piston rod is connected with damper piston (2), damper piston (2) to be arranged in bounce cylinder (1) and to contact with the interior wall seamless of bounce cylinder (1), another root piston rod is connected with compressor piston (12), compressor piston (12) to be arranged in compresser cylinder (10) and to contact with the interior wall seamless of compresser cylinder (10), the outer wall of expansion box (21) is fixed with fuel nozzle (7), fuel nozzle (7) is communicated with actuating cylinder (8) inside afterwards through expansion box (21), the outer wall of compresser cylinder (10) away from actuating cylinder (8) is provided with Aspirating valves one (14) and outlet valve one (16), the wall of Aspirating valves one (14) and the equal pierce compressed machine cylinder (10) of outlet valve one (16), Aspirating valves one (14) and outlet valve one (16) are all arranged in the areal extent of compressor piston (12), the outer wall of actuating cylinder (8) is provided with gear (22), gear shaft (24) is provided with in gear (22), gear shaft (24) is fixed with the center of actuating cylinder (8) afterwards through gear (22), (22) are provided with two toothed rack with gear, tooth bar all engages with gear (22), gear (22) is arranged between two toothed rack, and each toothed rack is fixed with a wherein piston rod respectively, the outer wall of actuating cylinder (8) is provided with suction port (23) and exhaust port (20), suction port (23) and exhaust port (20) two ends are all communicated with expansion box (21) with the inside of actuating cylinder (8), and gear (22) is arranged between suction port (23) and exhaust port (20).
2. employing rack and pinion engagement according to claim 1 realizes the free-piston compressor that is synchronized with the movement, it is characterized in that: the sidewall that described expansion box (21) is connected with compresser cylinder (10) is provided with several outlet valves two (9), the two ends of outlet valve two (9) are communicated with compresser cylinder (10) with expansion box (21) respectively, and actuating cylinder (8) is arranged on outlet valve two (9) around the intra-zone formed; The sidewall of described compresser cylinder (10) is provided with several Aspirating valvess two (11), the sidewall of Aspirating valves two (11) pierce compressed machine cylinder (10), Aspirating valves two (11) is arranged between compressor piston (12) and power piston.
3. employing rack and pinion engagement according to claim 1 realizes the free-piston compressor that is synchronized with the movement, it is characterized in that: the outer wall of described actuating cylinder (8) is provided with exhaust tube (19), exhaust tube (19) one end is communicated with the inside of actuating cylinder (8), and the other end is outside through being arranged on expansion box (21) after expansion box (21).
4. employing rack and pinion engagement according to claim 1 realizes the free-piston compressor that is synchronized with the movement, it is characterized in that: the outer wall of described compresser cylinder (10) away from actuating cylinder (8) is fixed with sucking pipe (13) and outlet pipe (17), one end of Aspirating valves one (14) is arranged in the port of sucking pipe (13), and one end of outlet valve one (16) is arranged in the port of outlet pipe (17).
CN201520404462.XU 2015-06-12 2015-06-12 Adopt rack and pinion meshing to realize simultaneous movement's free piston compressor Active CN204755221U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104912770A (en) * 2015-06-12 2015-09-16 国网四川省电力公司绵阳供电公司 Synchronous movement realization based free-piston compressor
KR102000269B1 (en) * 2019-01-31 2019-07-15 샘찬에너지(주) Hydrogen gas compression device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104912770A (en) * 2015-06-12 2015-09-16 国网四川省电力公司绵阳供电公司 Synchronous movement realization based free-piston compressor
CN104912770B (en) * 2015-06-12 2017-01-25 国网四川省电力公司绵阳供电公司 Synchronous movement realization based free-piston compressor
KR102000269B1 (en) * 2019-01-31 2019-07-15 샘찬에너지(주) Hydrogen gas compression device
WO2020159094A1 (en) * 2019-01-31 2020-08-06 샘찬에너지(주) Hydrogen gas compression device

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