CN218913094U

CN218913094U - Transmission structure for air compressor

Info

Publication number: CN218913094U
Application number: CN202223003412.XU
Authority: CN
Inventors: 杨智景; 王科
Original assignee: Shanghai Zunsheng Automobile Technology Co ltd
Current assignee: Shanghai Zunsheng Automobile Technology Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-04-25
Anticipated expiration: 2032-11-11

Abstract

The utility model discloses a transmission structure for an air compressor, which comprises a crankshaft, wherein a connecting rod is arranged on the crankshaft and is rotationally connected with the crankshaft through a connecting rod bearing; the two ends of the crankshaft are provided with support bearings, and the support bearings are positioned on the outer sides of the connecting rod bearings; the device also comprises a balancing weight which is detachably connected with the crankshaft to adjust dynamic balance of the crankshaft and a connecting rod on the crankshaft in the rotating process. The transmission structure for the air compressor is reasonable in structure, and the supporting bearing is arranged for the crankshaft to increase the supporting point of the crankshaft and ensure the rotation stability of the crankshaft; adopt split type structure, dispose detachably balancing weight for the bent axle, promoted the flexibility that bent axle dynamic balance adjusted, be favorable to reducing air compressor machine transmission structure's manufacturing cost.

Description

Transmission structure for air compressor

Technical Field

The utility model belongs to the technical field of compressors, and relates to a transmission structure for an air compressor.

Background

The bearing bush is arranged in the middle of a bearing connected with the existing engine and the air compressor, and a gap is arranged in the middle of the bearing bush, so that lubricating oil forms an oil film in the gap to ensure that the bearing is in a suspension state. If there is no lubricating oil in the gap, the members will rub against each other to generate high temperature, and even hard contact will occur to adhere to each other.

In addition, the transmission crankshaft is generally cast and formed through a die, and if the dynamic balance of the transmission crankshaft is unqualified in the rotating process, the transmission crankshaft cannot be repaired and can only be scrapped integrally, so that the running cost of the transmission structure of the air compressor is affected to a certain extent.

Therefore, there is a need to design a transmission structure for an air compressor to solve the existing technical problems.

Disclosure of Invention

The utility model aims at solving the technical problems, and provides a transmission structure for an air compressor, which has reasonable structure, and is characterized in that a supporting bearing is arranged for a crankshaft to increase supporting points of the crankshaft and ensure the rotation stability of the crankshaft; adopt split type structure, dispose detachably balancing weight for the bent axle, promoted the flexibility that bent axle dynamic balance adjusted, be favorable to reducing air compressor machine transmission structure's manufacturing cost.

In order to solve the technical problems, the utility model provides a transmission structure for an air compressor, which comprises a crankshaft, wherein a connecting rod is arranged on the crankshaft and is rotationally connected with the crankshaft through a connecting rod bearing; the two ends of the crankshaft are provided with support bearings, and the support bearings are positioned on the outer sides of the connecting rod bearings; the device also comprises a balancing weight which is detachably connected with the crankshaft to adjust dynamic balance of the crankshaft and a connecting rod on the crankshaft in the rotating process.

In some embodiments, the weight is secured to the outer peripheral side of the crankshaft by a bolt.

In some embodiments, the balancing weight is configured with an arcuate surface that matches an outer diameter of the crankshaft, the arcuate surface of the balancing weight being sleeved on a peripheral side of the crankshaft.

In some embodiments, the counterweight is disposed between the link bearing and the support bearing.

In some embodiments, the counter weight is provided with a counter bore, and the counter bore is arranged in a penetrating manner along the thickness direction of the counter weight.

In some embodiments, the crankshaft is provided with a threaded hole, and the bolt is fixed to the threaded hole of the crankshaft through the countersunk hole to connect the balancing weight to the crankshaft.

In some embodiments, the weight is made of carbon steel.

In some embodiments, the end of the crankshaft is provided with a connection section, which is connected with the output shaft of the permanent magnet motor through a coupling.

In some embodiments, the outer peripheral side of the connecting section is a tapered surface.

In some embodiments, the crankshaft is provided with a stopper disposed immediately adjacent to the connecting rod bearing; the limiting blocks are in a pair, and are positioned on two sides of the central axis of the crankshaft.

The utility model has the beneficial effects that:

the transmission structure for the air compressor is reasonable in structure, and the supporting bearing is arranged for the crankshaft to increase the supporting point of the crankshaft and ensure the rotation stability of the crankshaft; adopt split type structure, dispose detachably balancing weight for the bent axle, promoted the flexibility that bent axle dynamic balance adjusted, be favorable to reducing air compressor machine transmission structure's manufacturing cost.

Drawings

The above-described advantages of the present utility model will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are meant to be illustrative only and not limiting of the utility model, wherein:

FIG. 1 is a schematic view of a transmission structure for an air compressor according to the present utility model;

FIG. 2 is a three-dimensional perspective view of the corresponding transmission structure of FIG. 1;

FIG. 3 is a schematic view of the weight according to the present utility model;

FIG. 4 is a schematic view of another view of the weight of the present utility model;

fig. 5 is a schematic view of the application of the transmission structure of the present utility model in an air compressor.

In the drawings, the components represented by the respective reference numerals are as follows:

10. a crankshaft;

11. a threaded hole; 12. a connection section; 13. a limiting block;

20. a connecting rod;

30. a connecting rod bearing;

40. a support bearing;

50. balancing weight; 51. an arc surface; 52. a countersunk hole;

60. a bolt;

70. a permanent magnet motor.

Detailed Description

The present utility model will be described in detail with reference to specific embodiments and drawings.

The examples described herein are specific embodiments of the present utility model, which are intended to illustrate the inventive concept, are intended to be illustrative and exemplary, and should not be construed as limiting the utility model to the embodiments and scope of the utility model. In addition to the embodiments described herein, those skilled in the art can adopt other obvious solutions based on the disclosure of the claims and specification of the present application, including those adopting any obvious substitutions and modifications to the embodiments described herein.

The drawings in the present specification are schematic views, which assist in explaining the concept of the present utility model, and schematically show the shapes of the respective parts and their interrelationships. Note that, in order to clearly show the structures of the components of the embodiments of the present utility model, the drawings are not drawn to the same scale. Like reference numerals are used to denote like parts.

The transmission structure for the air compressor comprises a crankshaft 10, wherein a connecting rod 20 is arranged on the crankshaft 10, and the connecting rod 20 is rotatably connected with the crankshaft 10 through a connecting rod bearing 30, as shown in fig. 1; fig. 2 is a three-dimensional perspective view of the corresponding transmission structure of fig. 1.

Further, support bearings 40 are disposed at both ends of the crankshaft 10, the support bearings 40 being located outside the connecting rod bearings 30; the support bearings 40 provide multiple points of support for the crankshaft 10, which is advantageous in ensuring rotational smoothness of the crankshaft 10.

In the present utility model, grease may be applied to the inside of the support shaft 40 and the link bearing 30 without spraying the lubricating oil. The bearings are well lubricated by the grease, so that the phenomenon that the crankshaft 10 is meshed with other parts without lubricating oil is avoided.

In the embodiment shown in fig. 1, the transmission structure further includes a weight 50, and the weight 50 is detachably connected to the crankshaft 10 to adjust the dynamic balance of the crankshaft 10 and the connecting rod 20 thereon during rotation. In fig. 1, the weight 50 is fixed to the outer circumferential side of the crankshaft 10 by bolts 60.

Fig. 3 and 4 are schematic structural views of the balancing weight according to the present utility model, the balancing weight 50 is configured with an arc surface 51, the arc surface 51 is matched with the outer diameter of the crankshaft 10, and the arc surface 51 of the balancing weight 50 is sleeved on the outer circumference side of the crankshaft 10.

In fig. 2, the weight 50 is disposed between the link bearing 30 and the support bearing 40. The counter weight 50 is provided with a counter bore 52 shown in fig. 3, and the counter bore 52 is provided to penetrate in the thickness direction of the counter weight 50.

Further, the crankshaft 10 is provided with a screw hole 11 shown in fig. 1, and the bolt 60 is fixed to the screw hole 11 of the crankshaft 10 through the counter bore 52 to connect the weight 50 to the crankshaft 10. In some embodiments, the weight 50 is made of carbon steel to improve workability of the weight 50, and the weight 50 may be fixed to the outer circumferential side of the crankshaft 10 by bolts 60.

In the utility model, the balancing weight 50 adopts a split structure, so that the dynamic balance of the crankshaft 10 can be conveniently adjusted, and the efficiency of debugging the transmission structure can be improved.

In fig. 2, a connecting section 12 is disposed at an end of the crankshaft 10, the connecting section 12 is connected with an output shaft of a permanent magnet motor 70 (shown in fig. 5) through a coupling, and an outer circumferential side of the connecting section 12 is a conical surface, so that the crankshaft 10 is conveniently inserted into the coupling, and convenience in installation is improved.

In the embodiment shown in fig. 1, the crankshaft 10 is provided with a stopper 13, which is arranged immediately adjacent to the connecting rod bearing 30; the number of the limiting blocks 13 is one, and the limiting blocks 13 are positioned on two sides of the central axis of the crankshaft 10.

Fig. 5 is a schematic view showing the application of the transmission structure of the present utility model to an air compressor, wherein a crankshaft 10 is fixed by a connecting rod bearing 30 and a support bearing 40 to ensure multi-point support of the crankshaft 10. A connecting section 12 of the crankshaft 10 having a tapered surface is fixed to the coupling to connect the crankshaft 10 to the output shaft of the permanent magnet motor 70.

Compared with the defects and shortcomings of the prior art, the transmission structure for the air compressor is reasonable in structure, and the supporting bearing is arranged for the crankshaft, so that the supporting point of the crankshaft is increased, and the rotation stability of the crankshaft is ensured; adopt split type structure, dispose detachably balancing weight for the bent axle, promoted the flexibility that bent axle dynamic balance adjusted, be favorable to reducing air compressor machine transmission structure's manufacturing cost.

The present utility model is not limited to the above embodiments, and any person can obtain other products in various forms under the teaching of the present utility model, however, any changes in shape or structure of the products are included in the scope of protection of the present utility model, and all the products having the same or similar technical solutions as the present application are included in the present utility model.

Claims

1. A transmission structure for an air compressor, characterized by comprising a crankshaft (10), on which crankshaft (10) a connecting rod (20) is arranged, said connecting rod (20) being rotatably connected to said crankshaft (10) by means of a connecting rod bearing (30); the two ends of the crankshaft (10) are provided with support bearings (40), and the support bearings (40) are positioned outside the connecting rod bearings (30); the device also comprises a balancing weight (50), wherein the balancing weight (50) is detachably connected to the crankshaft (10) so as to adjust dynamic balance of the crankshaft (10) and the connecting rod (20) on the crankshaft in the rotating process.

2. The transmission structure for an air compressor according to claim 1, wherein the weight (50) is fixed to an outer peripheral side of the crankshaft (10) by bolts (60).

3. The transmission structure for an air compressor according to claim 2, wherein the weight (50) is provided with an arc surface (51), the arc surface (51) is matched with the outer diameter of the crankshaft (10), and the arc surface (51) of the weight (50) is sleeved on the outer peripheral side of the crankshaft (10).

4. A transmission structure for an air compressor according to claim 3, characterized in that the balancing weight (50) is arranged between the connecting rod bearing (30) and the support bearing (40).

5. A transmission structure for an air compressor according to claim 3, wherein the counter weight (50) is provided with a counter bore (52), and the counter bore (52) is provided through in a thickness direction of the counter weight (50).

6. The transmission structure for an air compressor according to claim 5, wherein a screw hole (11) is provided on the crankshaft (10), and the bolt (60) is fixed to the screw hole (11) of the crankshaft (10) through the counter bore (52) to connect a weight (50) to the crankshaft (10).

7. A transmission structure for an air compressor according to claim 5, characterized in that said counterweight (50) is made of carbon steel.

8. A transmission structure for an air compressor according to claim 1, characterized in that the end of the crankshaft (10) is provided with a connecting section (12), said connecting section (12) being connected to the output shaft of a permanent magnet motor (70) by means of a coupling.

9. A transmission structure for an air compressor according to claim 8, characterized in that the outer peripheral side of the connecting section (12) is a conical surface.

10. A transmission structure for an air compressor according to claim 1, characterized in that the crankshaft (10) is provided with a stop block (13) arranged next to the connecting rod bearing (30); the number of the limiting blocks (13) is one, and the limiting blocks (13) are positioned on two sides of the central axis of the crankshaft (10).