CN217842554U - Small-sized guide mechanism and reciprocating piston compressor - Google Patents
Small-sized guide mechanism and reciprocating piston compressor Download PDFInfo
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- CN217842554U CN217842554U CN202222097071.0U CN202222097071U CN217842554U CN 217842554 U CN217842554 U CN 217842554U CN 202222097071 U CN202222097071 U CN 202222097071U CN 217842554 U CN217842554 U CN 217842554U
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- guide
- guide mechanism
- connecting rod
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- piston rod
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Abstract
The utility model discloses a small-size guiding mechanism and reciprocating piston compressor, small-size guiding mechanism includes: the device comprises a piston rod, a compression cylinder, a stuffing box, a guide cylinder, a crankshaft connecting rod and a crankcase; the variable-angle power transmission mechanism is characterized in that the guide mechanism is connected with the piston rod and the crankshaft connecting rod and reciprocates in the guide cylinder to transmit variable-angle power between the piston rod and the crankshaft connecting rod; the guide mechanism has air tightness, so that the upper area of the guide cylinder forms a closed chamber. Through changing the structure in original reciprocating piston compressor, the first aspect uses the guide mechanism that the volume is littleer to replace original cross head structure, and original piston rod scraper ring is cancelled and with the frizing function integration to the guide mechanism to the second aspect on, and original pressure lubrication system is deleted to the third aspect, implements the work lubrication to the part in the space that has reduced through the mode of splash lubrication, has realized the miniaturized design of unit.
Description
Technical Field
The utility model relates to a reciprocating piston compressor field, in particular to small-size guiding mechanism and reciprocating piston compressor.
Background
Most of the existing vertical, V-type and W-type piston air compressors are composed of a piston rod, a crank and a crankshaft connecting rod to form a transmission system, the piston rod and the crankshaft connecting rod are connected through a crosshead, and pressure lubrication is adopted to assist the piston rod, an oil scraper ring and a packing mechanism to seal and work.
However, the crosshead, the piston rod oil scraper ring and the packing mechanism occupy a large amount of space inside the compressor. The work of the volume miniaturization of the unit based on the existing structure is difficult to develop.
SUMMERY OF THE UTILITY MODEL
In order to realize the purpose, the utility model discloses the technical scheme who adopts is:
a compact guide mechanism comprising: the device comprises a piston rod, a compression cylinder, a stuffing box, a guide cylinder, a crankshaft connecting rod and a crankcase;
the guide mechanism is connected with the piston rod and the crankshaft connecting rod and reciprocates in the guide cylinder to carry out variable-angle power transmission between the piston rod and the crankshaft connecting rod;
the guide mechanism has air tightness, so that the upper area of the guide cylinder forms a closed chamber.
In a preferred embodiment of the present invention, the guiding mechanism is provided with an oil scraper ring, and the oil scraper ring engages with the inner wall of the guiding cylinder and scrapes off the cylinder wall oil.
In a preferred embodiment of the present invention, the upper portion of the guiding mechanism is fixed to the piston rod, and the lower portion of the guiding mechanism is hinged to the crankshaft connecting rod.
In a preferred embodiment of the present invention, the guide mechanism is a guide piston.
In a preferred embodiment of the present invention,
the crankshaft box is connected with the lower end of the guider rod, a crankshaft is arranged in the crankshaft box, and the crankshaft is connected with the crankshaft connecting rod;
lubricating oil is arranged at the bottom of the crankcase, and the crankshaft connecting rod is immersed in the lubricating oil when rotating to the lower side position
Reciprocating piston compressor, including above-mentioned small-size guiding mechanism.
The beneficial effects of the utility model reside in that:
the small-sized guide mechanism and the reciprocating piston compressor provided by the utility model change the structure in the original compressor,
on the first hand, the guide mechanism with smaller volume is used for replacing the original crosshead structure, the volume of parts in the compressor is preliminarily reduced,
the second aspect further reduces the volume of the compressor by canceling the original piston rod oil scraper ring and integrating the hanging function on the guide mechanism, and realizes the miniaturization design of the unit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and the above description is for the convenience of description of the present invention and is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As used in this specification, the singular forms "a", "an" and "the" include plural referents unless the content clearly dictates otherwise. The term "comprising" as used in the specification is intended to specify the presence of stated features but does not preclude the presence or addition of one or more other features. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
In the description, when an element is referred to as being "on," "fixed to," "connected to," coupled to, "etc. another element, it can be directly on, fixed to, connected to, coupled to, or contacting the other element, or intervening elements may be present. In the description, one feature may be "adjacent" to another feature, and may mean that one feature has a portion overlapping with or is located above or below the adjacent feature.
Exemplary embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood, however, that the present application may be embodied in many different forms and is not limited to the embodiments described below. It is also to be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments. Throughout the drawings, like reference numbers indicate identical or functionally identical elements.
The piston compressor with guide mechanism with reference to fig. 1 mainly comprises: crankcase 10, guide cylinder 20, compression cylinder 30, stuffing box 40 and guide mechanism (not directly shown in the figure).
The piston 31 is arranged in the compression cylinder 30, the bottom of the piston 31 is connected with the piston rod 32, and the piston 31 can move vertically in the compression cylinder 30 after being stressed. The top of the compression cylinder 30 is fixed with a cylinder cover 50, and the cylinder cover 50 is provided with an air inlet 51 and an air outlet 52.
A guide mechanism 21 (not directly shown in the figure) is arranged in the guide cylinder 20, the top of the guide mechanism 21 is fixedly connected with the lower end of the piston rod 32, and the bottom of the guide mechanism 21 is hinged with the upper end of the crankshaft connecting rod 23. The guide mechanism 21 has an outer peripheral surface engaged with the cylinder wall of the guide cylinder 20, and an oil scraper ring 24 is further provided on the outer peripheral surface, the oil scraper ring 24 being tightly engaged with the cylinder wall of the guide cylinder 20. The guide mechanism 21 forms a closed chamber 22 in the upper region of the guide cylinder 20. The guide mechanism 21 forms a piston-like or guide piston structure in the guide cylinder 20, and replaces a combined structure of a crosshead and a piston rod oil scraper ring widely adopted in the prior art, so that the aims of reducing the number of parts and reducing the volume of the compressor are fulfilled.
A stuffing box 40 is connected between the compression cylinder 30 and the guide cylinder 20, and the stuffing box 40 has a certain balance function against the air pressure fluctuation generated in the working process of the guide mechanism 21 in the sealed chamber 22 while ensuring the air tightness between the compression cylinder 30 and the guide cylinder 20. The lower end of the crankshaft connecting rod 23 extends into the crankcase 10 and is connected to the crankshaft 11. The bottom of the crankcase 10 is arranged with lubricating oil 12.
During operation of the compressor, the crankshaft connecting rod 23 protrudes into the lubricating oil 12 during the rotational movement, and splashes the lubricating oil 12 out of the crankcase 10, the guide cylinder 20, and the guide mechanism to perform splash lubrication. The guide mechanism 21 realizes variable angle power transmission between the crankshaft connecting rod 23 and the piston rod 32, and converts the force applied to the end of the crankshaft connecting rod 23 to move and rotate and the force applied to the end of the piston rod 32 to move vertically. The guide mechanism 21 guides the piston rod 32 to move along the axial direction of the guide cylinder 20 during the movement, and keeps the connection point of the crankshaft connecting rod 23 and the piston rod 32 moving stably along a preset track. The oil scraper ring 24 provided on the pilot mechanism 21 removes oil from the wall of the pilot cylinder 20 during its movement, preventing the oil from entering the compression cylinder 30 along the rod.
Claims (6)
1. A compact guide mechanism comprising: the device comprises a piston rod, a compression cylinder, a stuffing box, a guide cylinder, a crankshaft connecting rod and a crankcase;
it is characterized in that the preparation method is characterized in that,
the guide mechanism is connected with the piston rod and the crankshaft connecting rod and reciprocates in the guide cylinder to carry out variable-angle power transmission between the piston rod and the crankshaft connecting rod;
the guide mechanism has air tightness, so that the upper area of the guide cylinder forms a closed chamber.
2. A compact pilot mechanism according to claim 1 wherein the pilot mechanism is provided with oil scraper rings which engage the internal walls of the pilot cylinder and scrape off wall oil.
3. The compact guiding mechanism of claim 2 wherein the upper portion of the guiding mechanism is fixed to the piston rod and the lower portion of the guiding mechanism is hinged to the crankshaft connecting rod.
4. A compact guide mechanism as claimed in claim 1 wherein the guide mechanism is a guide piston.
5. A compact guide mechanism according to any one of claims 1 to 4,
the crankshaft box is connected with the lower end of the guider rod, a crankshaft is arranged in the crankshaft box, and the crankshaft is connected with the crankshaft connecting rod;
lubricating oil is arranged at the bottom of the crankcase, and the crankshaft connecting rod is immersed in the lubricating oil when rotating to the lower side position.
6. Reciprocating piston compressor, characterized in that it comprises a compact guide mechanism according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222097071.0U CN217842554U (en) | 2022-08-10 | 2022-08-10 | Small-sized guide mechanism and reciprocating piston compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222097071.0U CN217842554U (en) | 2022-08-10 | 2022-08-10 | Small-sized guide mechanism and reciprocating piston compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217842554U true CN217842554U (en) | 2022-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222097071.0U Active CN217842554U (en) | 2022-08-10 | 2022-08-10 | Small-sized guide mechanism and reciprocating piston compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217842554U (en) |
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2022
- 2022-08-10 CN CN202222097071.0U patent/CN217842554U/en active Active
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