CN213235781U

CN213235781U - Novel variable frequency compressor crankshaft

Info

Publication number: CN213235781U
Application number: CN202021813931.0U
Authority: CN
Inventors: 计恩伟
Original assignee: Zhejaing Honglong Machinery Co ltd
Current assignee: Zhejaing Honglong Machinery Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-05-18
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses a novel frequency conversion compressor bent axle belongs to frequency conversion compressor technical field, including the head axle, the welding of head axle right-hand member installs preceding tile axle, the welding of preceding tile axle upper end right side is installed one and is turned the bent axle, a turning the outside bush movable mounting of bent axle has one to turn the bent axle sleeve, a turning the bent axle right-hand member welding installation has the tile dish, tile dish lower extreme right side welding installation has two cranks of bent axle, two turn the outside bush movable mounting of bent axle have two to turn the bent axle sleeve, two turn bent axle right-hand member welding installations have back tile axle, back tile axle right-hand member welding installation has the tail shaft. The utility model relates to a novelty, the operation of being convenient for and excellent in use effect can reduce the rotational friction of bent axle, reduce bent axle wearing and tearing, prevent that the bent axle from damaging or splitting, have improved work efficiency to make the bent axle at the during operation, can paint additional lubricating oil to the surface of bent axle effectively, prevent the bent axle damage.

Description

Novel variable frequency compressor crankshaft

Technical Field

The utility model relates to a frequency conversion compressor technical field especially relates to a novel frequency conversion compressor bent axle.

Background

The inverter compressor is a compressor capable of continuously changing output energy by continuously adjusting the rotation speed of the compressor within a certain range through a control mode or means relative to the compressor with constant rotation speed. The frequency conversion compressor can be divided into two parts, one part is a frequency conversion controller, namely a frequency converter which is commonly called; the other part is a compressor. The principle of the variable frequency controller is to convert the alternating current in the power grid into square wave pulse output. By adjusting the frequency of the square wave pulses (i.e., adjusting the duty cycle), the speed of the motor driving the compressor can be controlled. The higher the frequency, the higher the rotational speed.

Patent number CN203146275U discloses a crankshaft for inverter refrigerator compressor, which belongs to the technical field of refrigeration compressor accessories. The crankshaft for the compressor of the variable frequency refrigerator comprises a crankshaft body, a step surface, a positioning plane and a threaded fixing hole. A step surface and a positioning plane are manufactured on the upper main shaft of the crankshaft body, and a threaded fixing hole is manufactured at the upper end of the crankshaft body. According to the crankshaft for the variable frequency refrigerator compressor, the step surface and the positioning plane are arranged on the main shaft of the crankshaft body, and the outer shape size of the crankshaft body is in small clearance fit with the inner hole of the rotor, so that the accurate positioning of the rotor is facilitated. The tail of the main shaft of the crankshaft body is provided with a threaded fixing hole, the rotor is pressed and fixed through screws, and the assembling process is simple. The utility model discloses a bent axle body adopts grey cast iron or nodular cast iron casting, through the machine tooling shaping, and production simple process has solved current bent axle and has adopted the shrink fit technology to accomplish the assembly with electric motor rotor, and the problem of demagnetization easily appears in the rotor.

The above patents have the following disadvantages: 1. the crankshaft is easy to wear, the crankshaft is easy to damage or break, the rotating friction force of the crankshaft is increased, and the working efficiency is reduced; 2. when the crankshaft works, the surface of the crankshaft cannot be effectively coated with lubricating oil, and the crankshaft is easy to damage. Therefore, a novel variable frequency compressor crankshaft is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel variable frequency compressor crankshaft, which has novel design, convenient operation and good use effect, and aims to reduce the rotation friction force of the crankshaft, reduce the abrasion degree of the crankshaft, prevent the crankshaft from being damaged or broken and improve the working efficiency through a crank shaft sleeve and a crank shaft sleeve; through the main oil duct and the oil dividing duct, the surface of the crankshaft can be effectively coated with lubricating oil to prevent the crankshaft from being damaged when the crankshaft works.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of novel frequency conversion compressor bent axle, including the head axle, head axle right-hand member welded mounting has preceding tile axle, preceding tile axle upper end right side welded mounting has one to turn the bent axle, one turns the outside bush movable mounting of bent axle has one to turn the bent axle sleeve, one turns bent axle right-hand member welded mounting has the tile dish, tile dish lower extreme right side welded mounting has two cranks of bent axle, two turn the outside bush movable mounting of bent axle have two to turn the bent axle sleeve, two turn bent axle right-hand member welded mounting have back tile axle, back tile axle right-hand member welded mounting has the tail shaft.

Optionally, a head axle oil passage opening is formed in the front end of the head axle, the head axle oil passage opening is communicated with a main oil duct formed in the head axle in a communicating manner, and a head oil separating oil duct is formed in the head axle in a longitudinally communicating manner.

Optionally, a tail shaft oil passage opening is formed in the rear end of the tail shaft, the tail shaft oil passage opening is communicated with a main oil duct formed in the tail shaft in a communicating mode, and an axis oil port is formed in the main oil duct in the tail shaft.

Optionally, a ball is movably embedded between the crank shaft and the crank shaft sleeve, the ball is spaced by a baffle arranged on the crank shaft sleeve, and a crank shaft oil distribution passage is arranged in the crank shaft.

Optionally, balls are movably embedded between the two-crank shaft and the two-crank shaft sleeve, a two-crank shaft oil distribution channel is formed in the two-crank shaft, and an oil outlet is formed in the two-crank shaft oil distribution channel.

Optionally, the inside of the front bush shaft, the bush disc and the rear bush shaft are all communicated and provided with a main oil duct.

The utility model has the advantages as follows:

1. the utility model relates to a novelty, the operation is convenient and the use effect is good, through being equipped with a turning shaft sleeve and two turning shaft sleeves, a turning shaft sleeve and two turning shaft sleeves respectively with one turn bent axle and two turning shaft between movable inlay install a plurality of balls, install the piston rod on a turning shaft sleeve and two turning shaft sleeves of bent axle, when the bent axle rotates, one turn bent axle and two turning shaft rotate, carry out rolling friction with the ball, compare with contact friction, the frictional force is reduced, the rotational resistance is reduced, and rolling friction is carried out between ball and a turning shaft sleeve and two turning shaft sleeves equally, the frictional force is reduced equally, the rotational resistance is reduced equally, make one turn bent axle and two turning shaft not easy to wear, the bent axle wearing degree is reduced, so, the rotational friction of bent axle can be reduced, the bent axle wearing degree is reduced, prevent the bent axle from damaging or breaking, the working efficiency is improved.

2. The utility model is provided with the main oil duct and the branch oil ducts, after the crankshaft is installed, the lubricating oil is respectively filled in the head shaft oil duct port at the upper head shaft of the crankshaft and the tail shaft oil duct port at the tail shaft of the crankshaft outside the compressor, so that the lubricating oil enters the main oil ducts in the head shaft and the tail shaft, and after the lubricating oil enters the main oil ducts in the head shaft and the tail shaft, the oil can enter the main oil ducts in the front bush shaft, the first crank shaft, the tile disc, the second crank shaft and the rear bush shaft in sequence, the main oil duct is communicated with the first crank shaft oil distribution duct and the second crank shaft oil distribution duct, lubricating oil can flow out to the surfaces of the first crank shaft and the second crank shaft through the first crank shaft oil distribution duct and the second crank shaft oil distribution duct, the crankshaft rotates to centrifugally coat the lubricating oil on the surface of the crankshaft, and thus, can make the bent axle during operation, can paint the additive lubricating oil to the surface of bent axle effectively, prevent the bent axle damage.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of a novel variable frequency compressor crankshaft according to an embodiment of the present invention;

fig. 2 is a schematic view of a crank shaft structure of a novel variable frequency compressor crankshaft according to an embodiment of the present invention;

fig. 3 is the embodiment of the utility model provides a two bent axle structure sketch maps of novel inverter compressor bent axle.

In the figure: 1. the head shaft is provided with an oil distribution channel; 2. a head axle oil port opening; 3. a head shaft; 4. a main oil gallery; 5. a crank shaft; 6. a crank shaft sleeve; 7. a two-throw crankshaft; 8. a second crank shaft sleeve; 9. the tail shaft is provided with an oil distribution channel; 10. a tail shaft; 11. a tail shaft oil port opening; 12. an axial oil port; 13. a crank shaft branch oil duct; 14. blocking; 15. a ball bearing; 16. the two crankshafts are divided into oil ducts; 17. an oil outlet; 18. a front shoe shaft; 19. a tile disc; 20. and a rear bush shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A novel variable frequency compressor crankshaft according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Referring to fig. 1, a novel variable frequency compressor crankshaft provided in an embodiment of the present invention comprises a head shaft 3, a front bush 18 welded to a right end of the head shaft 3, a crank shaft 5 welded to a right side of an upper end of the front bush 18, a crank shaft sleeve 6 movably mounted to an outer sleeve of the crank shaft 5, a bush plate 19 welded to a right end of the crank shaft 5, a two-throw crank shaft 7 welded to a right side of a lower end of the bush plate 19, a two-throw shaft sleeve 8 movably mounted to an outer sleeve of the two-throw crank shaft 7, a rear bush 20 welded to a right end of the two-throw crank shaft 7, a tail shaft 10 welded to a right end of the rear bush 20, which can reduce a rotational friction force of the crankshaft, reduce a degree of wear of the crankshaft, prevent the crankshaft from being damaged or broken, improve a working efficiency during a working process, and enable the crankshaft to effectively coat and add a lubricating oil on a surface of, the damage of the crankshaft is prevented.

Referring to fig. 1, a head axle oil passage port 2 is formed in the front end of the head axle 3, the head axle oil passage port 2 is communicated with a main oil duct 4 formed in the head axle 3 in a communicating manner, a head oil separating oil duct 1 is formed in the head axle 3 in a longitudinally communicating manner, and the head axle oil passage port 2 is used for conveniently and directly filling lubricating oil.

Referring to fig. 1, a tail shaft oil passage 11 is formed in the rear end of the tail shaft 10, the tail shaft oil passage 11 is communicated with a main oil duct 4 formed in the tail shaft 10 in a communicating manner, an axis oil port 12 is formed in the main oil duct 4 in the tail shaft 10, and the tail shaft oil passage 11 is also used for conveniently and directly filling lubricating oil.

Referring to fig. 2, balls 15 are movably embedded between the crank shaft 5 and the crank shaft sleeve 6, the balls 15 are spaced by a baffle 14 arranged on the crank shaft sleeve 6, a crank shaft oil distribution channel 13 is formed in the crank shaft 5, and the crank shaft oil distribution channel 13 is used for conveniently coating lubricating oil on the surface of the crank shaft 5.

Referring to fig. 3, balls 15 are movably embedded between the two-crank-shaft 7 and the two-crank-shaft sleeve 8, a two-crank-shaft oil distribution passage 16 is formed in the two-crank-shaft 7, an oil outlet 17 is formed in the two-crank-shaft oil distribution passage 16, and the two-crank-shaft oil distribution passage 16 is used for conveniently coating lubricating oil on the surface of the two-crank-shaft 7.

Referring to fig. 1, the main oil gallery 4 is opened inside each of the front bush shaft 18, the bush disc 19 and the rear bush shaft 20, and the main oil gallery 4 is used for circulating added lubricating oil.

The embodiment of the utility model provides a novel frequency conversion compressor crankshaft, when using, through being equipped with one turning shaft sleeve 6 and two turning shaft sleeves 8, one turning shaft sleeve 6 and two turning shaft sleeves 8 respectively with one turning crankshaft 5 and two turning shaft 7 between movable inlay installs a plurality of balls 15, install the piston rod on one turning shaft sleeve 6 and two turning shaft sleeve 8 of bent axle, when the bent axle is rotatory, one turning crankshaft 5 and two turning crankshaft 7 rotate, carry out rolling friction with balls 15, compare with contact friction, the frictional force is reduced, rotational resistance has been reduced, and the rolling friction also carries out between balls and one turning shaft sleeve 6 and two turning shaft sleeve 8, the frictional force has been reduced equally, rotational resistance has been reduced equally, make one turning crankshaft 5 and two turning crankshaft 7 difficult wearing and tearing, the degree of crankshaft wear has been reduced, so, the rotational friction of bent axle can be reduced, the abrasion degree of the crankshaft is reduced, the crankshaft is prevented from being damaged or broken, and the working efficiency is improved; through the main oil gallery 4 and the branch oil gallery, after the crankshaft is installed, lubricating oil is respectively filled into a head shaft oil gallery 2 at a head shaft 3 of the crankshaft and a tail shaft oil gallery 11 at a tail shaft 10 outside the compressor, the lubricating oil enters the main oil gallery 4 in the head shaft 3 and the tail shaft 10 and then sequentially enters a front bush shaft 18, a one-crank shaft 5, a bush disc 19, a two-crank shaft 7 and a rear bush shaft 20, the main oil gallery 4 is communicated with the one-crank shaft branch oil gallery 13 and the two-crank shaft branch oil gallery 16, the lubricating oil can flow out to the surfaces of the one-crank shaft 5 and the two-crank shaft branch oil gallery 16 through the one-crank shaft branch oil gallery 13 and the two-crank shaft branch oil gallery 16, the lubricating oil is centrifugally coated on the surface of the crankshaft by the working rotation of the crankshaft, so that the surface of the crankshaft can be effectively coated and added with the lubricating oil when the crankshaft works, the damage of the crankshaft is prevented.

It should be noted that the utility model relates to a novel variable frequency compressor crankshaft, which comprises a head shaft oil distribution passage 1, a head shaft oil passage port 2, a head shaft 3, a main oil passage 4, a crank shaft 5, a crank shaft sleeve 6, a crank shaft 7, a crank shaft sleeve 8, a tail shaft oil distribution passage 9, a tail shaft 10, a tail shaft oil passage port 11, an axis port 12, a crank shaft oil distribution passage 13, a baffle 14, a ball 15, a crank shaft oil distribution passage 16, an oil outlet 17, a front bush 18, a bush disc 19 and a rear bush 20, wherein the above elements are all products in the prior art, and are selected, installed and finished by technicians in the field according to the use requirements, so as to ensure that each element can normally work, and the components are universal standard components or components known by technicians in the field, the structure and principle of the novel variable frequency compressor crankshaft can be known by technical manuals or conventional experimental methods, the applicant does not make specific limitations herein.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a novel inverter compressor bent axle which characterized in that: including head axle (3), head axle (3) right-hand member welding installs preceding tile axle (18), preceding tile axle (18) upper end right side welding installs one and turns bent axle (5), one turns bent axle (5) outside inlay set movable mounting have one turn bent axle sleeve (6), one turns bent axle (5) right-hand member welding installs tile dish (19), tile dish (19) lower extreme right side welding installs two and turns bent axle (7), two turn bent axle (7) outside inlay set movable mounting have two turn bent axle sleeves (8), two turn bent axle (7) right-hand member welding installs back tile axle (20), back tile axle (20) right-hand member welding installs tail axle (10).

2. The novel variable frequency compressor crankshaft of claim 1, wherein: the head shaft oil passage opening (2) is formed in the front end of the head shaft (3), the head shaft oil passage opening (2) is communicated with a main oil passage (4) formed in the head shaft (3) in a communicated mode, and a head oil separating oil passage (1) is formed in the head shaft (3) in a longitudinally communicated mode.

3. The novel variable frequency compressor crankshaft of claim 1, wherein: the rear end of the tail shaft (10) is provided with a tail shaft oil passage opening (11), the tail shaft oil passage opening (11) is communicated with a main oil duct (4) which is communicated with the inside of the tail shaft (10), and the main oil duct (4) inside the tail shaft (10) is provided with an axle center oil port (12).

4. The novel variable frequency compressor crankshaft of claim 1, wherein: the crank shaft is characterized in that a ball (15) is movably embedded between the crank shaft (5) and the crank shaft sleeve (6), the ball (15) is spaced through a baffle (14) arranged on the crank shaft sleeve (6), and a crank shaft oil distribution passage (13) is formed in the crank shaft (5).

5. The novel variable frequency compressor crankshaft of claim 1, wherein: the oil-saving device is characterized in that balls (15) are movably embedded between the two-throw crankshaft (7) and the two-throw crankshaft sleeve (8) in the same manner, a two-throw crankshaft oil-distributing channel (16) is formed in the two-throw crankshaft (7), and an oil outlet (17) is formed in the two-throw crankshaft oil-distributing channel (16).

6. The novel variable frequency compressor crankshaft of claim 1, wherein: the front bearing bush shaft (18), the bearing bush disc (19) and the rear bearing bush shaft (20) are all communicated with each other to form a main oil duct (4).