CN215521857U - Noise-reducing compressor crankshaft - Google Patents
Noise-reducing compressor crankshaft Download PDFInfo
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- CN215521857U CN215521857U CN202121289730.XU CN202121289730U CN215521857U CN 215521857 U CN215521857 U CN 215521857U CN 202121289730 U CN202121289730 U CN 202121289730U CN 215521857 U CN215521857 U CN 215521857U
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Abstract
The utility model relates to the technical field of crankshafts and discloses a noise-reducing compressor crankshaft which comprises a crank, wherein a shaft neck is fixedly connected to the left end of the crank, the left end of the shaft neck is also fixedly connected with the crank, a front end shaft is fixedly connected to the left surface of the crank on the left side, an oil hole is formed in the outer wall of the front end shaft, a rear end shaft is fixedly connected to the right surface of the crank on the right side, a bearing is fixedly sleeved on the rear end shaft, a connecting rod is rotatably sleeved on the rear end shaft, and a lifting stabilizing device is arranged on the right side of the crank. The front end shaft is worn and torn after being used for a long time, and the connecting rod is rocked and then the noise is generated in the sliding mode when the connecting rod swings due to the wearing and tearing of the front end shaft, the connecting rod can be firmly connected to the front end shaft after the front end shaft is worn and torn through the arrangement of the lifting stabilizing device, the noise is generated in the rocking mode of the connecting rod, the whole device is further provided with a noise reduction function, and the noise pollution of the device in the use process is reduced.
Description
Technical Field
The utility model relates to the technical field of crankshafts, in particular to a compressor crankshaft capable of reducing noise.
Background
The crankshaft is the most important part of the engine, and the crankshaft bears the force transmitted by the connecting rod and converts the force into torque to be output through the crankshaft and drive other accessories on the engine to work. The crankshaft is subjected to the combined action of the centrifugal force of the rotating mass, the gas inertia force which changes periodically and the reciprocating inertia force, so that the crankshaft is subjected to the action of bending and twisting loads, and therefore the crankshaft is required to have sufficient strength and rigidity and good balance. In the website (https:// haokan. baidu.com/vvid), it is mentioned that the crankshaft is worn during long-term use, the connecting rod connected with the crankshaft is seriously broken after the crankshaft is worn, the connection part of the crankshaft and the connecting rod is shaken due to slight wear, and thus when the crankshaft rotates at a high speed, the connecting rod collides with the crankshaft when swinging due to the abrasion of the crankshaft, so that noise pollution of the device is increased, and a compressor crankshaft capable of reducing noise is urgently needed.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides the noise-reducing compressor crankshaft which has the advantages of improving the stability of a connecting rod, reducing the noise generated after abrasion and the like, and solves the problem of high noise when the crankshaft is abraded in use.
(II) technical scheme
In order to achieve the purposes of improving the stability of the connecting rod and reducing noise generated after abrasion, the utility model provides the following technical scheme: a compressor crankshaft capable of reducing noise comprises a crank, wherein a shaft neck is fixedly connected to the left end of the crank, the left end of the shaft neck is fixedly connected with the crank, a front end shaft is fixedly connected to the left surface of the crank on the left side, an oil hole is formed in the outer wall of the front end shaft, a rear end shaft is fixedly connected to the right surface of the crank on the right side, a bearing is fixedly sleeved on the rear end shaft, a connecting rod is rotatably sleeved on the rear end shaft, a lifting stabilizing device is arranged on the right side of the crank, fixed blocks are fixedly connected to the left side and the right side of the top surface of the bearing, rotating rods are rotatably connected to opposite surfaces of the two fixed blocks, a fixed sleeve is fixedly sleeved on the rotating rod, the lifting stabilizing device comprises a fixed rod which is hollow inside, the fixed rod is fixedly connected to the top surface of the fixed sleeve, a lifting rod is slidably connected to the inside of the fixed rod, a bolt sleeve is fixedly connected to the right surface of the lifting rod, and a bolt is connected to the inner thread of the bolt sleeve, the rear end of the bolt is in threaded sleeve connection with a nut, the left surface of the connecting rod is in a straight shape and is provided with a bolt hole, and the bolt is in threaded connection with the bolt hole.
Preferably, the upper end of the lifting rod extends out of the fixing rod.
Preferably, the front end of the bolt extends out of the bolt sleeve, and the rear end of the bolt penetrates through the lifting rod.
Preferably, the connecting rod is located at the right side of the bearing and does not contact the bearing.
(III) advantageous effects
Compared with the prior art, the utility model provides a compressor crankshaft with noise reduction, which has the following beneficial effects:
1. this compressor crankshaft of noise reduction, setting through lift stabilising arrangement, back and bolt hole threaded connection in the bolt rotation gets into the bolt hole, then rotate the nut and make nut and lifter laminating, and then firm with the bolt fastening, and then link together connecting rod and lift stabilising arrangement, like this the front end axle is worn and torn after long-term the use, take place to slide when making the connecting rod swing owing to the wearing and tearing of front end axle and rock and then produce the noise, setting through lift stabilising arrangement, make the connecting rod firm with the contact surface portion of front end axle, can ensure that the front end axle wearing and tearing back connecting rod can be firm be connected at the front end epaxially, avoid the connecting rod to take place to rock the noise generation, and then play a function of making an uproar of falling to whole device, the noise pollution of the device when using has been reduced.
2. This compressor crankshaft of noise reduction has the lifter through the inside sliding connection of dead lever, and the dead lever is extended to the upper end of lifter, and the height of lifter is further adjusted according to the size pulling lifter of rear end axle, and the lifter removes and drives the bolt housing and remove, and the bolt housing drives the bolt and removes, can fix to the connecting rod of unidimensional not like this to the application range of device has been promoted.
3. This compressor crankshaft of noise reduction, through the setting of nut, after bolt and connecting rod link together, rotate the nut and make nut and lifter laminating, and then with the bolt fastening firm to further promotion connecting rod and the stability between the lifting stabilizing device, thereby promoted the device's durability and stability.
Drawings
FIG. 1 is a schematic view of a noise reducing compressor crankshaft configuration of the present invention;
FIG. 2 is a schematic illustration of a disassembled structure of a noise-reducing compressor crankshaft of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic plan view of a crankshaft connecting rod of a compressor for reducing noise according to the present invention.
In the figure: 1 crank, 2 journals, 3 front end shafts, 4 oil holes, 5 rear end shafts, 6 bearings, 7 connecting rods, 8 fixing blocks, 9 rotating rods, 10 fixing sleeves, 11 fixing rods, 12 lifting rods, 13 bolt sleeves, 14 bolts, 15 nuts and 16 bolt holes.
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.
Referring to fig. 1-4, the present invention provides a new technical solution: a compressor crankshaft for reducing noise comprises a crank 1, wherein a shaft neck 2 is fixedly connected to the left end of the crank 1, the crank 1 is connected with the shaft neck 2 through screws, the left end of the shaft neck 2 is fixedly connected with the crank 1, a front end shaft 3 is fixedly connected to the left surface of the left crank 1, an oil hole 4 is formed in the outer wall of the front end shaft 3, a rear end shaft 5 is fixedly connected to the right surface of the right crank 1, a bearing 6 is fixedly sleeved on the rear end shaft 5, a connecting rod 7 is rotatably sleeved on the rear end shaft 5, the connecting rod 7 is positioned on the right side of the bearing 6 and does not contact with the bearing 6, the crankshaft is formed by the two cranks 1, the shaft neck 2, the front end shaft 3 and the rear end shaft 5, when the crankshaft moves to the compressor, the inside of the crankshaft rotates at high speed, and the crankshaft is subjected to the combined action of centrifugal force of rotating mass, gas inertia force and reciprocating inertia force, the crankshaft bears the action of bending and twisting load, and the crankshaft rotates to drive the connecting rod 7 to swing;
the left side and the right side of the top surface of the bearing 6 are fixedly connected with fixed blocks 8, opposite surfaces of the two fixed blocks 8 are rotatably connected with rotating rods 9, a fixed sleeve 10 is fixedly sleeved on the rotating rods 9, a lifting stabilizing device is arranged on the right side of the crank 1 and comprises a fixed rod 11 with a hollow inner part, the fixed rod 11 is fixedly connected with the top surface of the fixed sleeve 10, a lifting rod 12 is slidably connected inside the fixed rod 11, the fixed rod 11 extends out of the upper end of the lifting rod 12, a bolt sleeve 13 is fixedly connected with the right surface of the lifting rod 12, a bolt 14 is connected with an inner thread of the bolt sleeve 13, a bolt sleeve 13 extends out of the front end of the bolt 14, the rear end of the bolt 14 penetrates through the lifting rod 12, a nut 15 is sleeved on the rear end thread of the bolt 14, when the device is used, the connecting rod 7 is sleeved on the rear end shaft 5, the lifting rod 12 is pulled according to the size of the rear end shaft 5 so as to adjust the height of the lifting rod 12, the lifting rod 12 moves to drive the bolt sleeve 13 to move, and the bolt sleeve 13 drives the bolt 14 to move, so that the connecting rods 7 with different sizes can be fixed, and the application range of the device is widened.
When the device is used, after the height of the lifting rod 12 is adjusted to a proper position, the bolt 14 is rotated to enable the bolt 14 to enter the bolt hole 16, the bolt 14 is rotated to enter the bolt hole 16 and then is in threaded connection with the bolt hole 16, then the nut 15 is rotated to enable the nut 15 to be attached to the lifting rod 12, the bolt 14 is further fixed firmly, the connecting rod 7 is connected with the lifting stabilizing device, the contact surface part of the connecting rod 7 and the front end shaft 3 is made to be firm, the stability between the connecting rod 7 and the lifting stabilizing device is further improved, the durability and the stability of the device are improved, the front end shaft 3 is abraded after long-term use, and the connecting rod 7 is in sliding swing due to abrasion of the front end shaft 3 to generate noise, through the setting of lift stabilising arrangement, can ensure that connecting rod 7 can be firm after front end axle 3 wearing and tearing is connected on front end axle 3, avoid connecting rod 7 to take place to rock the production noise, and then play a function of making an uproar of falling to whole device, reduced the noise pollution of the device when using.
The working principle is as follows:
when the device is used, firstly, the connecting rod 7 is sleeved on the rear end shaft 5, the lifting rod 12 is pulled according to the size of the rear end shaft 5 so as to adjust the height of the lifting rod 12, the lifting rod 12 moves to drive the bolt sleeve 13 to move, the bolt sleeve 13 drives the bolt 14 to move, and thus the connecting rod 7 with different sizes can be fixed, thereby the using range of the device is improved, then, after the height of the lifting rod 12 is adjusted to a proper position, the bolt 14 is rotated to enable the bolt 14 to enter the bolt hole 16, the bolt 14 is rotated to enter the bolt hole 16 and then is in threaded connection with the bolt hole 16, then, the nut 15 is rotated to enable the nut 15 to be attached to the lifting rod 12, further, the bolt 14 is firmly fixed, the connecting rod 7 is in sliding and swinging due to the abrasion of the front end shaft 3 so as to generate noise, through the arrangement of the lifting stabilizing device, the connecting rod 7 can be firmly connected to the front end shaft 3 after the abrasion of the front end shaft 3, the connecting rod 7 is prevented from shaking to generate noise, so that the whole device has a noise reduction function, and the noise pollution of the device in use is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a compressor crankshaft of noise reduction, includes crank (1), the left end fixedly connected with axle journal (2) of crank (1), the same fixedly connected with crank (1) of left end of axle journal (2), the left fixed surface of left crank (1) is connected with front end axle (3), has seted up oilhole (4) on the outer wall of front end axle (3), the right fixed surface of crank (1) on right side is connected with rear end axle (5), its characterized in that: the rear end shaft (5) is fixedly sleeved with a bearing (6), the rear end shaft (5) is rotatably sleeved with a connecting rod (7), and the right side of the crank (1) is provided with a lifting stabilizing device.
2. A noise-reduced compressor crankshaft as defined in claim 1, wherein: the equal fixedly connected with fixed block (8) in the left and right sides of the top surface of bearing (6), the opposite face of two fixed blocks (8) rotates and is connected with dwang (9), and fixed cover (10) have been cup jointed on dwang (9).
3. A noise-reduced compressor crankshaft as defined in claim 1, wherein: the lifting stabilizing device comprises a hollow fixing rod (11), the fixing rod (11) is fixedly connected to the top surface of the fixing sleeve (10), a lifting rod (12) is connected to the inside of the fixing rod (11) in a sliding mode, a bolt sleeve (13) is fixedly connected to the right surface of the lifting rod (12), a bolt (14) is connected to the inner thread of the bolt sleeve (13), and a nut (15) is sleeved on the rear end thread of the bolt (14).
4. A noise-reduced compressor crankshaft as set forth in claim 3, wherein: the upper end of the lifting rod (12) extends out of the fixing rod (11), the front end of the bolt (14) extends out of the bolt sleeve (13), and the rear end of the bolt (14) penetrates through the lifting rod (12).
5. A noise-reduced compressor crankshaft as defined in claim 1, wherein: the left surface of the connecting rod (7) is in a straight shape and is provided with a bolt hole (16), and the bolt (14) is in threaded connection with the bolt hole (16).
6. A noise-reduced compressor crankshaft as defined in claim 1, wherein: the connecting rod (7) is positioned at the right side of the bearing (6) and is not in contact with the bearing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121289730.XU CN215521857U (en) | 2021-06-09 | 2021-06-09 | Noise-reducing compressor crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121289730.XU CN215521857U (en) | 2021-06-09 | 2021-06-09 | Noise-reducing compressor crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215521857U true CN215521857U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121289730.XU Active CN215521857U (en) | 2021-06-09 | 2021-06-09 | Noise-reducing compressor crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215521857U (en) |
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2021
- 2021-06-09 CN CN202121289730.XU patent/CN215521857U/en active Active
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