Floating bearing assembly of turbocharger

Abstract

The utility model discloses a turbocharger floating bearing assembly, which relates to the technical field of turbochargers and comprises a bearing seat, a bearing is rotatably connected in the bearing seat, a bearing ring is rotatably connected in the bearing, and a lubricating device is arranged at the top of the bearing seat. The lubricating device comprises a motor, the motor is arranged above a bearing seat, the top of the bearing seat is fixedly connected with a support, and the top of the support is fixedly connected with a lubricating oil tank. When the motor is started, the rotating shaft rotates, so that the baffle plate intermittently opens the oil leakage port, lubricating oil in the lubricating oil tank enters the bearing through the oil guide frame, redundant lubricating oil enters the collecting box through the oil outlet, and the redundant lubricating oil is collected while the lubricating effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of turbochargers, and particularly relates to a floating bearing assembly of a turbocharger. Background Technique

[0002] With the continuous improvement of the intensification degree of internal combustion engines and the increasingly strict emission standards, turbocharging technology has become one of the most crucial measures to improve the economy, power performance and emission standards of internal combustion engines. With the development of turbocharging technology for diesel and gas engines, the exhaust gas temperature it bears has also been continuously increasing. Since the sealing ring and bearing system are weak links in the structure of the turbocharger, they have a very important impact on the reliability and even the working efficiency of the turbocharger.

[0003] According to a disclosed floating bearing assembly of a turbocharger (publication number: CN 217898250 U), it includes a bearing housing, a bearing body and a bearing race. There is an installation box on the front side of the bearing housing. A lubrication mechanism is arranged inside the installation box. The lubrication mechanism includes an absorption component and a conveying device. There is a conduit above the conveying device. A chute is opened on the lower side of the bearing body, and a conveying channel is opened inside the bearing body; an inner cavity is opened inside the bearing body. There is a rubber ring outside the installation ring. There is a fixing rod on the other side inside the bearing body. A buffer mechanism is arranged outside the rubber ring. The buffer mechanism includes a buffer component. There is a second spring on one side of the second fixing block. Through the absorption component, the conveying device and the first spring, the purpose of automatic lubrication can be achieved, which is quite practical. Through the rubber ring, the fixing rod and the second spring, the integrity of the internal structure can be guaranteed, greatly prolonging the service life of this bearing assembly and being more practical.

[0004] In the above application, through the mutual cooperation between the absorption component and the conveying device component, the excess lubricating oil cannot be collected, resulting in economic losses after long-term use, and the effect is not ideal. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a floating bearing assembly of a turbocharger. Through the mutual cooperation between components such as the motor, bracket, lubricating oil tank, rotating shaft and baffle inside the lubrication device, when the motor is started, the rotating shaft rotates, causing the baffle to intermittently open the oil leakage port, enabling the lubricating oil in the lubricating oil tank to enter the bearing through the oil guiding frame, and the excess lubricating oil enters the collection box through the oil outlet, achieving the lubrication effect while collecting the excess lubricating oil and solving the existing problems.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a turbocharger floating bearing assembly, comprising a bearing seat, a bearing rotatably connected inside the bearing seat, a bearing ring rotatably connected inside the bearing, and a lubricating device is arranged on the top of the bearing seat;

[0008] The lubrication device includes a motor, which is arranged above the bearing seat, a bracket is fixedly connected to the top of the bearing seat, a lubricating oil tank is fixedly connected to the top of the bracket, the side of the motor is fixedly connected to the side of the lubricating oil tank, a refueling port is opened on the top of the lubricating oil tank, an oil leakage port is opened on the top of the lubricating oil tank, a rotating shaft is fixedly connected to the output shaft of the motor, a baffle is fixedly connected to the circumferential surface of the rotating shaft, an oil guide frame is fixedly connected to the bottom of the lubricating oil tank, an oil inlet is opened on the circumferential surface of the bearing, and an oil outlet is opened on the circumferential surface of the bearing.

[0009] Furthermore, a slide groove is provided on the side of the bearing seat, a collection box is slidably connected inside the slide groove, and a handle is fixedly connected to the side of the collection box. This design is conducive to controlling the entry and exit of the collection box through the handle.

[0010] Furthermore, a speaker is fixedly connected to the side of the collection box, a trigger button is arranged on the side of the speaker, a limiting plate is fixedly connected to the interior of the collection box, a limiting groove is provided on the side of the limiting plate, and a floating plate is slidably connected to the interior of the limiting groove. Such a design is conducive to triggering the trigger button to cause the speaker to sound an alarm.

[0011] Furthermore, the trigger button is located on the displacement track of the floating plate, the oil inlet is located below the oil guide frame, and the collecting box is located below the oil outlet. This design is conducive to collecting the lubricating oil at the oil outlet through the collecting box.

[0012] Furthermore, a fixing device is provided at the top of the bearing seat, and the fixing device includes a support plate, the side of the support plate is fixedly connected to the side of the bracket, a threaded rod is rotatably connected inside the support plate, a first belt groove is provided on the circumferential surface of the rotating shaft, a second belt groove is provided on the circumferential surface of the threaded rod, a belt is transmission-connected to the circumferential surface of the first belt groove, the inner side surface of the belt is on the circumferential surface of the second belt groove, a threaded sleeve is threadedly connected to the circumferential surface of the threaded rod, a fixing plate is fixedly connected to the circumferential surface of the threaded sleeve, and a fixing block is fixedly connected to the top of the bearing seat. A threaded hole is provided on the top of the fixing block, and a screw is fixed to the internal thread of the threaded hole. Such a design is conducive to driving the threaded rod to rotate when the rotating shaft rotates through the transmission of the belt.

[0013] Furthermore, a protection groove is formed on the side surface of the fixing plate, and a protection cotton is fixedly connected inside the protection groove. This design is beneficial to prevent damage to the bearing during fixation through the protection cotton.

[0014] Furthermore, the number of the threaded holes and the screws is set to two groups, and they are arranged in a linear array on the top of the fixing block. This design is beneficial to make the fixing effect of the fixing block better through multiple screws.

[0015] The utility model has the following beneficial effects:

[0016] Through the mutual cooperation among components such as the motor, the bracket, the lubricating oil tank, the rotating shaft and the baffle inside the lubricating device of the utility model, when the motor is started, the rotating shaft rotates, making the baffle intermittently open the oil leakage port, enabling the lubricating oil in the lubricating oil tank to enter the bearing through the oil guiding frame, and the redundant lubricating oil enters the collection box through the oil outlet, achieving the lubricating effect while collecting the redundant lubricating oil.

[0017] Through the mutual cooperation among components such as the support plate, the threaded rod, the belt, the threaded sleeve, the fixing plate and the fixing block inside the fixing device of the utility model, when the motor is started, through the transmission of the belt, when the rotating shaft rotates, it drives the threaded rod to rotate, and when the threaded rod rotates, the threaded sleeve moves, enabling the fixing plate to fix the bearing, achieving the fixing effect.

[0018] Certainly, when implementing any product of the utility model, it is not necessarily required to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of the three-dimensional appearance of the utility model;

[0021] Figure 2 It is a schematic structural diagram of the three-dimensional section of the utility model;

[0022] Figure 3 For the utility model Figure 2 The three-dimensional enlarged structural diagram of A therein;

[0023] Figure 4 For the utility model Figure 2 The three-dimensional enlarged structural diagram of B therein.

[0024] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0025] 1. Bearing housing; 2. Bearing; 3. Bearing ring; 4. Lubrication device; 41. Motor; 42. Bracket; 43. Lubricating oil tank; 44. Filler port; 45. Oil leakage port; 46. Rotating shaft; 47. Baffle; 48. Oil guide frame; 49. Oil inlet; 410. Oil outlet; 411. Slide groove; 412. Collection box; 413. Handle; 414. Sound device; 415. Trigger button; 416. Limit plate; 417. Limit groove; 418. Floating plate; 5. Fixing device; 51. Support plate; 52. Threaded rod; 53. First pulley groove; 54. Second pulley groove; 55. Belt; 56. Threaded sleeve; 57. Fixed plate; 58. Fixed block; 59. Threaded hole; 510. Screw; 511. Protection groove; 512. Protection cotton. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] Please refer to Figures 1-4 , the present invention is a floating bearing assembly for a turbocharger, including a bearing housing 1, a bearing 2 is rotatably connected inside the bearing housing 1, a bearing ring 3 is rotatably connected inside the bearing 2, and a lubrication device 4 is arranged on the top of the bearing housing 1;

[0028] The lubrication device 4 includes a motor 41, the motor 41 is arranged above the bearing housing 1, a bracket 42 is fixedly connected to the top of the bearing housing 1, a lubricating oil tank 43 is fixedly connected to the top of the bracket 42, the side of the motor 41 is fixedly connected to the side of the lubricating oil tank 43, a filler port 44 is opened on the top of the lubricating oil tank 43, an oil leakage port 45 is opened on the top of the lubricating oil tank 43, a rotating shaft 46 is fixedly connected to the output shaft of the motor 41, a baffle 47 is fixedly connected to the circumferential surface of the rotating shaft 46, an oil guide frame 48 is fixedly connected to the bottom of the lubricating oil tank 43, an oil inlet 49 is opened on the circumferential surface of the bearing 2, and an oil outlet 410 is opened on the circumferential surface of the bearing 2.

[0029] A slide groove 411 is opened on the side of the bearing housing 1, a collection box 412 is slidably connected inside the slide groove 411, and a handle 413 is fixedly connected to the side of the collection box 412. Such a design is beneficial to controlling the entry and exit of the collection box 412 through the handle 413.

[0030] A speaker 414 is fixedly connected to the side of the collection box 412. A trigger button 415 is arranged on the side of the speaker 414. A limiting plate 416 is fixedly connected to the inside of the collection box 412. A limiting groove 417 is formed on the side of the limiting plate 416. A floating plate 418 is slidably connected to the inside of the limiting groove 417. Such a design is beneficial to trigger the speaker 414 to emit an alarm through the trigger button 415.

[0031] The trigger button 415 is located on the displacement track of the floating plate 418. The oil inlet 49 is located below the oil guide frame 48. The collection box 412 is located below the oil outlet 410. Such a design is beneficial to collect the lubricating oil at the oil outlet 410 through the collection box 412.

[0032] A fixing device 5 is arranged on the top of the bearing block 1. The fixing device 5 includes a support plate 51. The side of the support plate 51 is fixedly connected to the side of the bracket 42. A threaded rod 52 is rotatably connected to the inside of the support plate 51. A first belt groove 53 is formed on the circumferential surface of the rotating shaft 46. A second belt groove 54 is formed on the circumferential surface of the threaded rod 52. A belt 55 is drivingly connected to the circumferential surface of the first belt groove 53. The inner side of the belt 55 is on the circumferential surface of the second belt groove 54. A threaded sleeve 56 is threadedly connected to the circumferential surface of the threaded rod 52. A fixing plate 57 is fixedly connected to the circumferential surface of the threaded sleeve 56. A fixing block 58 is fixedly connected to the top of the bearing block 1. A threaded hole 59 is formed in the top of the fixing block 58. A screw 510 is fixedly threaded in the threaded hole 59. Such a design is beneficial to drive the threaded rod 52 to rotate when the rotating shaft 46 rotates through the transmission of the belt 55.

[0033] A protection groove 511 is formed on the side of the fixing plate 57. A protection cotton 512 is fixedly connected to the inside of the protection groove 511. Such a design is beneficial to prevent damage to the bearing 2 during fixation through the protection cotton 512.

[0034] The number of the threaded holes 59 and the screws 510 is set to two groups, and they are linearly arrayed on the top of the fixing block 58. Such a design is beneficial to make the fixing effect of the fixing block 58 better through multiple screws 510.

[0035] A specific application of this embodiment is as follows: When the bearing 2 is running, in order to prevent internal damage, it is necessary to lubricate the bearing 2. First, start the motor 41. When the motor 41 starts, the rotating shaft 46 on the output shaft of the motor 41 rotates clockwise. When the rotating shaft 46 rotates clockwise, the baffle 47 on the rotating shaft 46 intermittently opens the oil leakage port 45. When the oil leakage port 45 is opened, the lubricating oil inside the lubricating oil tank 43 flows into the oil guiding frame 48. The lubricating oil enters the inside of the bearing 2 through the oil guiding frame 48 and the oil inlet 49 to lubricate the bearing 2. The excess lubricating oil enters the collection tank 412 through the oil outlet 410 at the bottom. When the lubricating oil inside the collection tank 412 reaches a certain amount, the floating plate 418 touches the trigger button 415. When the trigger button 415 is touched, the speaker 414 emits an alarm to remind the staff to clean the collection tank 412. When the rotating shaft 46 rotates counterclockwise, the baffle 47 on the rotating shaft 46 cannot intermittently open the oil leakage port 45, and lubrication cannot be carried out at this time.

[0036] In order to prevent the bearing 2 from floating during operation, it is necessary to fix the bearing 2. First, start the motor 41. When the motor 41 starts, the rotating shaft 46 on the output shaft of the motor 41 rotates clockwise. When the rotating shaft 46 rotates clockwise, the threaded rod 52 driven by the belt 55 and the rotating shaft 46 rotates clockwise. When the threaded rod 52 rotates clockwise, the threaded sleeve 56 on the threaded rod 52 moves horizontally to the right. When the threaded sleeve 56 moves horizontally to the right, the fixing plate 57 on the threaded sleeve 56 fixes the bearing 2. When the rotating shaft 46 rotates counterclockwise, the threaded rod 52 driven by the belt 55 and the rotating shaft 46 rotates counterclockwise. When the threaded rod 52 rotates counterclockwise, the threaded sleeve 56 on the threaded rod 52 moves horizontally to the left. When the threaded sleeve 56 moves horizontally to the left, the fixing plate 57 on the threaded sleeve 56 releases the bearing 2, and the bearing 2 can be replaced at this time.

[0037] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0038] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A turbocharger floating bearing assembly, comprising a bearing seat (1), characterized in that: The bearing seat (1) is internally rotatably connected to a bearing (2), the bearing (2) is internally rotatably connected to a bearing ring (3), and a lubrication device (4) is provided on the top of the bearing seat (1); The lubricating device (4) comprises a motor (41), the motor (41) being arranged above the bearing seat (1), the top of the bearing seat (1) being fixedly connected to a bracket (42), the top of the bracket (42) being fixedly connected to a lubricating oil tank (43), the side of the motor (41) being fixedly connected to the side of the lubricating oil tank (43), the top of the lubricating oil tank (43) being provided with a refueling port (44), the top of the lubricating oil tank (43) being provided with an oil leakage port (45), the output shaft of the motor (41) being fixedly connected to a rotating shaft (46), the circumferential surface of the rotating shaft (46) being fixedly connected to a baffle plate (47), the bottom of the lubricating oil tank (43) being fixedly connected to an oil guide frame (48), the circumferential surface of the bearing (2) being provided with an oil inlet (49), and the circumferential surface of the bearing (2) being provided with an oil outlet (410).

2. A turbocharger floating bearing assembly according to claim 1, characterized in that: A sliding groove (411) is provided on the side of the bearing seat (1), a collection box (412) is slidably connected inside the sliding groove (411), and a handle (413) is fixedly connected to the side of the collection box (412).

3. A turbocharger floating bearing assembly according to claim 2, characterized in that: A speaker (414) is fixedly connected to the side of the collection box (412), a trigger button (415) is provided on the side of the speaker (414), a limiting plate (416) is fixedly connected inside the collection box (412), a limiting groove (417) is provided on the side of the limiting plate (416), and a floating plate (418) is slidably connected inside the limiting groove (417).

4. A turbocharger floating bearing assembly according to claim 3, characterized in that: The trigger button (415) is located on the displacement track of the floating plate (418), the oil inlet (49) is located below the oil guide frame (48), and the collection box (412) is located below the oil outlet (410).

5. A turbocharger floating bearing assembly according to claim 4, characterized in that: A fixing device (5) is provided at the top of the bearing seat (1), and the fixing device (5) comprises a support plate (51), the side of the support plate (51) is fixedly connected to the side of the bracket (42), the support plate (51) is internally rotatably connected to a threaded rod (52), a first belt groove (53) is provided on the circumferential surface of the rotating shaft (46), a second belt groove (54) is provided on the circumferential surface of the threaded rod (52), a belt (55) is transmission-connected to the circumferential surface of the first belt groove (53), the inner side surface of the belt (55) is on the circumferential surface of the second belt groove (54), a threaded sleeve (56) is threadedly connected to the circumferential surface of the threaded rod (52), a fixing plate (57) is fixedly connected to the circumferential surface of the threaded sleeve (56), and a fixing block (58) is fixedly connected to the top of the bearing seat (1), a threaded hole (59) is provided on the top of the fixing block (58), and a screw (510) is fixed to the internal thread of the threaded hole (59).

6. A turbocharger floating bearing assembly according to claim 5, characterized in that: A protection groove (511) is provided on the side of the fixing plate (57), and a protection cotton (512) is fixedly connected inside the protection groove (511).

7. A turbocharger floating bearing assembly according to claim 6, characterized in that: The threaded holes (59) and screws (510) are provided in two groups in a linear array on the top of the fixing block (58).

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