CN219605503U

CN219605503U - Compressor connecting rod

Info

Publication number: CN219605503U
Application number: CN202223505838.5U
Authority: CN
Inventors: 宋家弟
Original assignee: Bengbu Juxin Air Compressor Manufacturing Co ltd
Current assignee: Bengbu Juxin Air Compressor Manufacturing Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-08-29
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses a compressor connecting rod, which comprises a rod body and a shaft hole, wherein the shaft hole is rotationally connected with a fixed sleeve, a clamping groove is formed in the fixed sleeve, two first annular grooves are formed in the inner side wall of the shaft hole, two groups of ball grooves are formed in the outer side of the fixed sleeve, balls are arranged between each ball groove and the corresponding first annular groove, an oil cavity is formed in the rod body and communicated with the two annular grooves through an oil way, a piston is slidingly connected in the oil cavity, and the fixed sleeve drives the piston to reciprocate through a transmission device. The utility model has the advantages that: the connecting rod drives lubricating oil in the oil cavity to enter the arc-shaped groove through rotation of the fixed sleeve to lubricate the balls, so that friction force can be reduced, the abrasion degree of the balls can be reduced, and the service life of the balls is prolonged.

Description

Compressor connecting rod

Technical Field

The utility model relates to the technical field of compressors, in particular to a compressor connecting rod.

Background

At present, two ends of a cylinder connecting rod in the existing refrigeration compressor are respectively and rotatably connected with an eccentric shaft, the eccentric shaft is directly and rotatably connected with a connecting shaft hole of the cylinder connecting rod, an external driving system drives the eccentric shaft to rotate, and the eccentric shaft drives the cylinder connecting rod to rotate. However, in the rotating process of the cylinder connecting rod, the friction between the inner wall of the connecting shaft hole and the eccentric shaft is too large, the cylinder connecting rod can be damaged in the long-term rotating friction, and the service life of the cylinder connecting rod is reduced.

The utility model provides a China patent of current application number 202222200931.9 discloses a refrigerating compressor's cylinder connecting rod, and this product includes cylinder connecting rod, connecting axle hole, the inside of cylinder connecting rod is provided with the adapter sleeve, the multiunit draw-in groove has been seted up to the inside of adapter sleeve, the arc wall has been seted up in the outside in connecting axle hole. Through ball groove, arc groove, ball rotation connection in this connecting rod for can reduce the frictional force between adapter sleeve and the connecting shaft hole, though can reduce the frictional force between inner wall and the eccentric shaft of connecting shaft hole, even adopted the ball still can have great frictional force under high-speed rotation, under the circumstances that does not lubricate moreover, the ball self wearing and tearing are higher, can reduce the life of ball.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a compressor connecting rod.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a compressor connecting rod, includes body of rod and shaft hole, is equipped with the draw-in groove in the fixed cover at shaft hole swivelling joint fixed cover be equipped with two first ring grooves on the inside wall in shaft hole the outside of fixed cover is equipped with two sets of ball grooves be equipped with the ball between every ball groove and corresponding first ring groove be equipped with the oil pocket in the body of rod, the oil pocket passes through the oil circuit intercommunication two first ring groove, sliding connection piston in the oil pocket, fixed cover passes through transmission reciprocal promotion the piston.

Preferably, a second annular groove is formed in the inner side wall of the shaft hole, a second annular magnet is arranged in the second annular groove, a third annular groove is formed in the outer side wall of the fixed sleeve, a third annular magnet is arranged in the third annular groove, and homopolar repulsion is achieved between the third annular magnet and the second annular magnet.

Preferably, an oil inlet is formed in the rod body and communicated with the oil cavity, and the oil inlet is blocked through a plunger.

Preferably, the transmission device comprises a cavity, the cavity is arranged in the rod body, a first through hole is formed in the top of the cavity and is communicated with the oil cavity, a supporting rod is inserted in the first through hole, the upper end of the supporting rod is connected to the lower side of the piston, the lower end of the supporting rod is connected with a first pushing block, the first pushing block is matched with a second pushing block, a sliding rod is connected to the second pushing block, a second through hole is formed in one side wall of the cavity and is communicated with the shaft hole, the sliding rod penetrates through the second through hole, an extrusion block is connected to the fixed sleeve, and the extrusion block pushes the sliding rod when the fixed sleeve rotates.

Preferably, a first spring is sleeved on the supporting rod, the first spring is arranged between the piston and the top of the oil cavity, a second spring is sleeved on the sliding rod, and the second spring is arranged between the second pushing block and the inner side wall of the cavity.

Preferably, a fourth annular groove is arranged below the inner side of the shaft hole, the second through hole is communicated with the fourth annular groove, and the extrusion block is arranged in the fourth annular groove.

The utility model has the advantages that: according to the compressor connecting rod, the lubricating oil in the oil cavity is driven to enter the arc-shaped groove through rotation of the fixing sleeve to lubricate the balls, so that friction force can be reduced, the abrasion degree of the balls can be reduced, and the service life of the balls is prolonged.

Drawings

Fig. 1 is a schematic diagram of a principle structure of a compressor connecting rod according to the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1, the connecting rod of the compressor provided by the utility model comprises a rod body 1 and a shaft hole 2, wherein a fixing sleeve 3 is rotationally connected in the shaft hole 2, a clamping groove is arranged in the fixing sleeve, and the fixing sleeve 3 is connected with an eccentric shaft through the clamping groove and the clamping plate.

Two first annular grooves 4 are formed in the inner side wall of the shaft hole 2, the two first annular grooves 4 are arranged up and down, two groups of ball grooves 5 are formed in the outer side of the fixed sleeve 3, balls are arranged between each ball groove 5 and the corresponding first annular groove 4, and when the fixed sleeve 3 rotates, friction force between the fixed sleeve 3 and the shaft hole 2 can be reduced through rolling of the balls.

The inner side wall of the shaft hole 2 is provided with a second annular groove, the second annular groove is arranged in the middle of the two first annular grooves 4, a second annular magnet 2.1 is arranged in the second annular groove, the outer side wall of the fixed sleeve 3 is provided with a third annular groove, a third annular magnet 3.1 is arranged in the third annular groove, the homopolar repulsion of the third annular magnet 3.1 and the second annular magnet 2.1 is realized, and the homopolar repulsion of the third annular magnet 3.1 and the second annular magnet 2.1 is realized, so that the friction force between the fixed sleeve 3 and the shaft hole 2 is further reduced.

An oil cavity 7 is formed in the rod body 1, an oil inlet 1.1 is formed in the rod body 1, the oil inlet 1.1 is communicated with the oil cavity 7, lubricating oil is periodically added into the oil cavity 7 through the oil inlet 1.1, and the oil inlet 1.1 is plugged through a plunger.

The oil pocket 7 passes through oil circuit 8 intercommunication two first ring channel 4, oil circuit 8 includes the main oil circuit, main oil circuit one end intercommunication oil pocket 7, the other end intercommunication divides the oil circuit, two divide the oil circuit to communicate first ring channel 4 respectively, at the equal fixed connection sponge piece of the oil-out of every minute oil circuit, lubricating oil can infiltrate the sponge piece, can contact the sponge piece when the ball passes through, lubricating oil on the sponge piece can adhere on the ball to lubricate the ball, make the ball friction force diminish when rolling, protect the ball, reduce the wearing and tearing degree of ball.

The piston 9 is connected in the oil cavity 7 in a sliding mode, the fixed sleeve 3 pushes the piston 9 back and forth through the transmission device, so that the piston 9 pushes lubricating oil in the oil cavity 7 into the oil way 8, the lubricating oil is adhered to the balls, the balls are lubricated, the friction force of the balls is reduced, the abrasion degree of the balls is reduced, and the service life of the balls is prolonged.

The transmission device comprises a cavity 10, the cavity 10 is a rectangular cavity, the cavity 10 is arranged in the rod body 1 and is arranged at the lower side of the oil cavity 7, a first through hole is formed in the top of the cavity 10, a supporting rod 11 is inserted into the first through hole, the upper end of the supporting rod 11 is connected to the lower side of the piston 9, a first spring 15 is sleeved on the supporting rod 11, the first spring 15 is connected between the piston 9 and the top of the oil cavity 7, and the first spring 15 can drive the piston 9 to reset downwards.

The lower end of the supporting rod 9 is connected with a first pushing block 12, the first pushing block 12 and a second pushing block 13 are matched, the contact surface of the first pushing block 12 and the second pushing block 13 is an inclined surface, when the second pushing block 13 pushes the first pushing block 12, the first pushing block 12 moves upwards, so that the supporting rod 11 is driven to move upwards, and the piston 9 moves upwards to squeeze lubricating oil into the oil way 8.

The second pushing block 13 is connected with the sliding rod 14, a second through hole is formed in one side wall of the cavity 10 and is communicated with the shaft hole 2, the sliding rod 14 penetrates through the second through hole, the fixed sleeve 3 is connected with the extrusion block 3.2, the extrusion block 3.2 pushes the sliding rod 14 to move leftwards when the fixed sleeve 3 rotates, the sliding rod 14 faces one end of the fixed sleeve 3 to be subjected to round corner treatment, the sliding rod 14 is sleeved with the second spring 16, the second spring 16 is connected between the second pushing block 13 and the inner side wall of the cavity 10, and the second spring 16 can drive the sliding rod 14 to reset rightwards.

When the eccentric shaft drives the fixed sleeve 3 to rotate, the fixed sleeve 3 drives the extrusion block 3.2 to rotate, and the extrusion block 3.2 drives the sliding rod 14 to move leftwards when rotating, so that the second pushing block 13 pushes the first pushing block 12, the first pushing block 12 moves upwards, the first pushing block 12 drives the supporting rod 11 to move upwards, the supporting rod 11 drives the piston 9 to move upwards, the piston 9 moves upwards to squeeze lubricating oil into the oil way 8, and then the lubricating oil is adhered to the balls to lubricate the balls, the friction force of the balls is reduced, the abrasion degree of the balls is reduced, and the service life of the balls is prolonged.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a compressor connecting rod, includes body of rod (1) and shaft hole (2), is equipped with draw-in groove, its characterized in that in fixed cover (3) at fixed cover (3) of fixed cover (3) are connected in shaft hole (2) internal rotation: two first annular grooves (4) are formed in the inner side wall of the shaft hole (2), two groups of ball grooves (5) are formed in the outer side of the fixed sleeve (3), balls are arranged between each ball groove (5) and the corresponding first annular groove (4), an oil cavity (7) is formed in the rod body (1), the oil cavity (7) is communicated with the two first annular grooves (4) through an oil way (8), a piston (9) is connected in the oil cavity (7) in a sliding mode, and the fixed sleeve (3) pushes the piston (9) in a reciprocating mode through a transmission device.

2. A compressor connecting rod as defined in claim 1, wherein: the inner side wall of the shaft hole (2) is provided with a second annular groove, a second annular magnet (2.1) is arranged in the second annular groove, the outer side wall of the fixed sleeve (3) is provided with a third annular groove, a third annular magnet (3.1) is arranged in the third annular groove, and the third annular magnet (3.1) and the second annular magnet (2.1) are homopolar in repulsion.

3. A compressor connecting rod as defined in claim 1, wherein: an oil inlet (1.1) is formed in the rod body (1), the oil inlet (1.1) is communicated with the oil cavity (7), and the oil inlet (1.1) is blocked through a plunger.

4. A compressor connecting rod as defined in claim 1, wherein: the transmission device comprises a cavity (10), wherein the cavity (10) is arranged in the rod body (1), a first through hole is formed in the top of the cavity (10), the first through hole is communicated with the oil cavity (7), a supporting rod (11) is inserted in the first through hole, the upper end of the supporting rod (11) is connected to the lower side of the piston (9), the lower end of the supporting rod (11) is connected with a first pushing block (12), the first pushing block (12) is matched with a second pushing block (13), a sliding rod (14) is connected to the second pushing block (13), a second through hole is formed in one side wall of the cavity (10), the second through hole is communicated with the shaft hole (2), the sliding rod (14) penetrates through the second through hole, the fixing sleeve (3) is connected with the extrusion block (3.2), and the extrusion block (3.2) pushes the sliding rod (14) when the fixing sleeve (3) rotates.

5. A compressor connecting rod as defined in claim 4, wherein: the support rod (11) is sleeved with a first spring (15), the first spring (15) is arranged between the piston (9) and the top of the oil cavity (7), the sliding rod (14) is sleeved with a second spring (16), and the second spring (16) is arranged between the second pushing block (13) and the inner side wall of the cavity (10).

6. A compressor connecting rod as defined in claim 4, wherein: a fourth annular groove (2.2) is arranged below the inner side of the shaft hole (2), the second through hole is communicated with the fourth annular groove (2.2), and the extrusion block (3.2) is arranged in the fourth annular groove (2.2).