CN216975474U

CN216975474U - Refrigerating compressor crankshaft with anti-wear joint

Info

Publication number: CN216975474U
Application number: CN202123227998.3U
Authority: CN
Inventors: 莫晓龙
Original assignee: Anhui Zhongmaiya Electromechanical Technology Co ltd
Current assignee: Anhui Zhongmaiya Electromechanical Technology Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-07-15
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a refrigeration compressor crankshaft with an anti-wear joint, which comprises a crank and a main journal arranged on the surface of one side of the crankshaft, wherein the surface of the outer side of the main journal is provided with a thread groove, the inner wall of the thread groove is provided with a driving joint, the surface of the outer side of the driving joint is provided with a thread bulge, the thread bulge is matched with the thread groove for use, and a lubricating mechanism is arranged in the driving joint. According to the utility model, the series of structures are arranged, when the refrigeration compressor is started, the driving joint is driven to rotate in advance, the material blocking block is acted by centrifugal force and moves outwards along the oil outlet channel, the first spring is stretched at the moment, so that a gap is formed between the material blocking block and the oil outlet channel, lubricating oil in the oil storage cavity flows out along the oil outlet channel, along with the increase of the rotating speed of the driving joint, the larger the gap between the material blocking block and the oil outlet channel is, the larger the amount of the lubricating oil flowing out is, the better the lubricating effect is, and the sufficient lubrication is realized.

Description

Refrigerating compressor crankshaft with anti-wear joint

Technical Field

The utility model relates to the technical field of compressors, in particular to a refrigerating compressor crankshaft with an anti-wear joint.

Background

A refrigerant compressor in a vapor compression refrigeration system increases the pressure of a refrigerant from a low pressure to a high pressure and causes the refrigerant to circulate continuously, thereby causing the system to continuously reject internal heat to an environment above the temperature of the system. A refrigeration compressor is the heart of a refrigeration system that inputs electrical energy through the compressor, thereby rejecting heat from a low temperature environment to a high temperature environment. The energy efficiency ratio of the refrigerant compressor determines the energy efficiency ratio of the overall refrigerant system.

When the refrigeration compressor is operated at the initial stage, all parts are in a running-in period, oil applying time exists when the refrigeration compressor is started, refrigerating machine oil cannot reach all parts of the crankshaft in time, the phenomenon of insufficient lubrication exists, the crankshaft is more easily abraded, and the crankshaft can be increased due to insufficient lubricating oil amount in the operation process due to the change of the rotating speed of the crankshaft.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a refrigeration compressor crankshaft with an anti-wear joint to solve the problems set forth in the background of the utility model.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a subsidiary compressor crankshaft who resistance to wears connects, includes the crank and installs the main shaft neck at bent axle side surface, the thread groove has been seted up on the outside surface of main shaft neck, the drive connects is installed to the inner wall of thread groove, the outside surface mounting that the drive connects has the screw thread arch, the screw thread arch is used with the thread groove cooperation, the internally mounted that the drive connects has lubricating mechanism, the movable groove has been seted up to the bent axle side surface in the main shaft neck outside, the inner wall swing joint in movable groove has balance mechanism.

Preferably, the lubricating mechanism comprises a lubricating assembly and a guiding-out assembly, the lubricating assembly is mounted inside the driving joint, and the guiding-out assembly is mounted inside the driving joint outside the lubricating assembly.

Preferably, the lubricating assembly comprises an oil storage cavity and an oil outlet channel, the oil storage cavity is formed in the driving joint, the oil outlet channel is uniformly distributed in the driving joint outside the oil storage cavity, the tail end of the oil outlet channel extends to the outer side surface of the thread protrusion, a first spring is installed on the inner wall of the oil outlet channel, and a material blocking block is installed on the outer side surface of the first spring.

Preferably, the derivation subassembly includes reposition of redundant personnel passageway and lubricated passageway, and the drive joint inside in the oil outlet channel outside is provided with the reposition of redundant personnel passageway, and the lubricated passageway has been seted up to the crankshaft side surface of neighbouring main journal one side, and lubricated passageway's one end surface is connected with the outside surface of reposition of redundant personnel passageway, and lubricated passageway's other end surface extends to the opposite side surface of crankshaft.

Preferably, the balancing mechanism comprises a balancing component and a balancing block, the inner wall of the movable groove is movably connected with the balancing component, and the balancing block is arranged on the outer side surface of the balancing component.

Preferably, the second spring is installed to the inner wall of activity groove, and the terminal surface mounting of second spring has the stopper, and the outside surface mounting of stopper has the connecting axle, and the terminal surface mounting of the connecting axle on bent axle outside surface has the balancing piece, balancing piece one side surface and bent axle outside surface movable contact.

Compared with the prior art, the utility model has the beneficial effects that:

1. this supplementary anti-wear joint's refrigeration compressor bent axle uses through the screw thread arch with the thread groove cooperation, connects the drive as a whole with the main journal, thereby wholly insert compressor oil pump output with the bent axle, drive the whole rotation of bent axle, refrigeration compressor's bent axle is mostly the double crank, the part of turning round of a crank pin is pressed from both sides to two cranks promptly, every crank of bent axle all comprises main journal, crank and crank pin triplex, the crank pin is installed on articulate opposite side surface.

2. This subsidiary wear joint's compressor crankshaft, when compressor starts, it rotates in advance to drive the drive joint, the fender piece receives the effect of centrifugal force this moment, move to the outside along producing oil the passageway, first spring is stretched this moment, make keep off the material piece and produce oil and appear the space between the passageway, the inside lubricating oil of oil storage chamber flows along producing oil the passageway, along with the rotational speed increase that the drive connects, keep off the material piece and produce oil the space between the passageway big more, its lubricated oil mass of flowing also big more, the better lubricating effect, it is enough abundant to lubricate.

3. This subsidiary anti-wear joint's refrigeration compressor bent axle, partly lubricating oil are derived to between thread groove and the screw thread arch from the passageway of producing oil, prevent to appear rubbing between main journal and the drive joint, and another part lubricating oil pours into lubricated passageway into from the reposition of redundant personnel passageway, lubricates the crank is inside, prevents that the inside friction from appearing of bent axle.

4. This subsidiary anti-wear joint's compressor crankshaft, along with the crank rotation, the balancing piece receives the effect of centrifugal force, make the second spring stretched, thereby make the stopper move in the activity inslot portion, the position of adjustment balancing piece, utilize the centrifugal force and the centrifugal moment of balancing piece self when compressor work, come the equilibrium because inertia force and the inertia moment that arouse when crank and partial connecting rod are reciprocating motion, vibration produced when reducing compressor operation, and simultaneously, also can alleviate the load of bent axle upper bearing, reduce the wearing and tearing of bent axle junction.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic sectional view of a partial structure of a main journal according to the present invention.

In the figure: 1. a crank; 2. a main journal; 3. a thread groove; 4. a drive joint; 5. a threaded boss; 6. a movable groove; 7. an oil storage chamber; 8. an oil outlet channel; 9. a first spring; 10. a material blocking block; 11. a flow dividing channel; 12. a lubrication channel; 13. a counterbalance; 14. a second spring; 15. a limiting block; 16. and (7) connecting the shafts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, 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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3, the crankshaft of the refrigeration compressor with the anti-wear joint of the present embodiment includes a crank 1 and a main journal 2 installed on one side surface of the crank, the two parts are divided into two parts before processing, and welding is required to achieve a connection effect, a thread groove 3 is formed on the outer side surface of the main journal 2, a driving joint 4 is installed on the inner wall of the thread groove 3, a thread protrusion 5 is installed on the outer side surface of the driving joint 4, the thread protrusion 5 is used in cooperation with the thread groove 3, a lubricating mechanism is installed inside the driving joint 4, a movable groove 6 is formed on one side surface of the crank outside the main journal 2, a balancing mechanism is movably connected to the inner wall of the movable groove 6, the driving joint 4 and the main journal 2 are connected into a whole by the cooperation of the thread protrusion 5 and the thread groove 3, so that the crank is integrally connected to the output end of the compressor oil pump to drive the crank to integrally rotate, the bent axle of refrigerant compressor is mostly the double crank, and two crank 1 press from both sides the turning part of a crank pin promptly, and every crank of bent axle all comprises main journal 2, crank 1 and crank pin triplex, and the crank pin is installed in the other side surface of crank 1.

Specifically, the lubricating mechanism comprises a lubricating component and a derivation component, the lubricating component is arranged inside the driving joint 4, the derivation component is arranged inside the driving joint 4 outside the lubricating component, the lubricating component comprises an oil storage cavity 7 and an oil outlet channel 8, the oil storage cavity 7 is arranged inside the driving joint 4, the oil outlet channel 8 is uniformly distributed inside the driving joint 4 outside the oil storage cavity 7, the tail end of the oil outlet channel 8 extends to the outer side surface of the thread bulge 5, a first spring 9 is arranged on the inner wall of the oil outlet channel 8, a material blocking block 10 is arranged on the outer side surface of the first spring 9, when the refrigeration compressor is started, the driving joint 4 is driven to rotate in advance, the material blocking block 10 is acted by centrifugal force and moves outwards along the oil outlet channel 8, the first spring 9 is stretched, a gap is formed between the material blocking block 10 and the oil outlet channel 8, lubricating oil inside the oil storage cavity 7 flows out along the oil outlet channel 8, along with the increase of the rotating speed of the driving joint 4, the larger the gap between the material blocking block 10 and the oil outlet channel 8 is, the larger the amount of lubricating oil flowing out is, the better the lubricating effect is, and the sufficient lubrication is realized.

Further, it includes reposition of redundant personnel passageway 11 and lubricated passageway 12 to derive the subassembly, the inside reposition of redundant personnel passageway 11 that is provided with of drive joint 4 in the passageway 8 outside of producing oil, lubricated passageway 12 has been seted up to the bent axle side surface of 2 one sides of neighbouring trunnion, the one end surface of lubricated passageway 12 is connected with reposition of redundant personnel passageway 11's outside surface, the other end surface of lubricated passageway 12 extends to the opposite side surface that the bent axle is relative, partly lubricating oil is derived to between thread groove 3 and the thread bulge 5 from producing oil passageway 8, prevent to appear the friction between trunnion 2 and the drive joint 4, another part lubricating oil pours into lubricated passageway 12 from reposition of redundant personnel passageway 11, lubricate crank 1 is inside, prevent that the inside friction from appearing of bent axle.

Further, the balance mechanism comprises a balance component and a balance block 13, the inner wall of the movable groove 6 is movably connected with the balance component, the outer side surface of the balance component is provided with the balance block 13, the inner wall of the movable groove 6 is provided with a second spring 14, the tail end surface of the second spring 14 is provided with a limit block 15, the outer side surface of the limit block 15 is provided with a connecting shaft 16, the tail end surface of the connecting shaft 16 on the outer side surface of the crankshaft is provided with the balance block 13, one side surface of the balance block 13 is movably contacted with the outer side surface of the crankshaft, along with the rotation of the crank 1, the balance block 13 is acted by centrifugal force, so that the second spring 14 is stretched, the limit block 15 moves in the movable groove 6, the position of the balance block 13 is adjusted, when the refrigeration compressor works, the centrifugal force and the centrifugal moment of the balance block 13 are utilized to balance the inertia force and the inertia moment caused by the reciprocating motion of the crank 1 and a part of the connecting rods, the vibration generated when the refrigeration compressor operates can be reduced, and simultaneously, the load of the bearing on the crankshaft can be reduced, and the abrasion of the crankshaft connecting part can be reduced.

The using method of the embodiment comprises the following steps: the driving joint 4 and the main journal 2 are connected into a whole by matching the thread bulge 5 with the thread groove 3, so that the whole crankshaft is connected to the output end of an oil pump of the compressor to drive the crankshaft to rotate integrally, the crankshaft of the refrigeration compressor is mostly double-bent, namely, two cranks 1 clamp the bent part of one crank pin, each bent crank of the crankshaft consists of the main journal 2, the crank 1 and the crank pin, and the crank pin is arranged on the surface of the other side of the crank 1;

when the refrigeration compressor is started, the driving joint 4 is driven to rotate in advance, the material blocking block 10 is acted by centrifugal force and moves outwards along the oil outlet channel 8, the first spring 9 is stretched, so that a gap is formed between the material blocking block 10 and the oil outlet channel 8, lubricating oil in the oil storage cavity 7 flows out along the oil outlet channel 8, along with the increase of the rotating speed of the driving joint 4, the larger the gap between the material blocking block 10 and the oil outlet channel 8 is, the larger the amount of the lubricating oil flowing out is, the better the lubricating effect is, and the sufficient and sufficient lubrication is realized;

one part of lubricating oil is led out from the oil outlet channel 8 to a position between the thread groove 3 and the thread bulge 5 to prevent friction between the main journal 2 and the driving joint 4, and the other part of lubricating oil is poured into the lubricating channel 12 from the flow dividing channel 11 to lubricate the inside of the crank 1 and prevent friction from occurring inside the crank shaft;

with the rotation of the crank 1, the balance weight 13 is acted by centrifugal force, so that the second spring 14 is stretched, the limit block 15 moves in the movable groove 6, the position of the balance weight 13 is adjusted, when the refrigeration compressor works, the inertia force and the inertia moment caused by the reciprocating motion of the crank 1 and part of the connecting rods are balanced by the centrifugal force and the centrifugal moment of the balance weight 13, so that the vibration generated when the refrigeration compressor operates is reduced, meanwhile, the load of a bearing on the crank shaft can be reduced, and the abrasion of the connecting part of the crank shaft is reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A refrigerant compressor crankshaft with an anti-wear joint, comprising a crank (1) and a main journal (2) mounted on one side surface of the crankshaft, characterized in that: thread groove (3) have been seted up on the outside surface of main journal (2), drive joint (4) are installed to the inner wall of thread groove (3), the outside surface mounting of drive joint (4) has screw thread arch (5), screw thread arch (5) and thread groove (3) cooperation are used, the internally mounted of drive joint (4) has lubricating mechanism, movable groove (6) have been seted up on the bent axle side surface in the main journal (2) outside, the inner wall swing joint of movable groove (6) has balance mechanism.

2. Refrigeration compressor crankshaft with anti-wear joint (4) according to claim 1, characterized in that: the lubricating mechanism comprises a lubricating component and a guiding component, the lubricating component is arranged inside the driving joint (4), and the guiding component is arranged inside the driving joint (4) outside the lubricating component.

3. Refrigeration compressor crankshaft with anti-wear joint (4) according to claim 2, characterized in that: lubricating assembly includes oil storage chamber (7) and oil outlet channel (8), and oil storage chamber (7) have been seted up to the inside of drive joint (4), and the inside evenly distributed of the drive joint (4) in the oil storage chamber (7) outside has oil outlet channel (8), and the end of oil outlet channel (8) extends to the outside surface of screw thread arch (5), and first spring (9) are installed to the inner wall of oil outlet channel (8), and the outside surface mounting of first spring (9) has and keeps off material piece (10).

4. Refrigeration compressor crankshaft with anti-wear joint (4) according to claim 3, characterized in that: the derivation subassembly includes reposition of redundant personnel passageway (11) and lubricated passageway (12), and the drive joint (4) in the oil outlet channel (8) outside is inside to be provided with reposition of redundant personnel passageway (11), and lubricated passageway (12) have been seted up to the crankshaft side surface of neighbouring main journal (2) one side, and the one end surface of lubricated passageway (12) is connected with the outside surface of reposition of redundant personnel passageway (11), and the other end surface of lubricated passageway (12) extends to the relative opposite side surface of crankshaft.

5. Refrigeration compressor crankshaft with anti-wear joint (4) according to claim 1, characterized in that: the balance mechanism comprises a balance component and a balance block (13), the inner wall of the movable groove (6) is movably connected with the balance component, and the outer side surface of the balance component is provided with the balance block (13).

6. Refrigeration compressor crankshaft with anti-wear joint (4) according to claim 5, characterized in that: second spring (14) are installed to the inner wall of activity groove (6), and the terminal surface mounting of second spring (14) has stopper (15), and the outside surface mounting of stopper (15) has connecting axle (16), and the terminal surface mounting of the connecting axle (16) of bent axle outside surface has balancing piece (13), balancing piece (13) one side surface and bent axle outside surface movable contact.