Ball bearing lubricating oil supplementing structure

Abstract

The invention provides a ball bearing lubricating oil supplementing structure which comprises a working impeller, a main shaft is connected to the working impeller, the main shaft is rotationally arranged in a volute through a plurality of ball bearings arranged on the main shaft, a cavity is formed in the volute, a driving mechanism is arranged in the cavity, and the driving mechanism is connected with the working impeller. The movable end of the driving mechanism is connected with a flexible material, an oil inlet pipeline is further arranged in the cavity, and the oil inlet end of the oil inlet pipeline adds lubricating oil to the flexible material. And the driving mechanism is controlled to act to extrude the flexible material to deform, so that the lubricating oil added to the flexible material is supplemented to the ball bearing. According to the ball bearing lubricating oil supplementing structure, the bearing is evenly lubricated under the condition that the bearing does not need to be disassembled, friction and abrasion are effectively reduced, and the service life of the bearing is prolonged.

Description

Technical Field

[0001] The present application belongs to the technical field of turbo expanders, and in particular, relates to a ball bearing lubricating oil replenishing structure. Background Art

[0002] In the existing low-speed turbocharger technology, bearings mostly use grease lubrication or splash lubrication rolling bearings (also called ball bearings), and the lubrication and maintenance of bearings have always been a crucial link.

[0003] Traditional lubrication methods often require the bearings to be removed from the turboexpander after the equipment is shut down, and then thoroughly cleaned to remove the waste lubricant and impurities, and then new lubricant is added, and finally the bearings are installed back in place. This traditional lubrication method is not only cumbersome, time-consuming and labor-intensive, but also easily damages the bearings and other parts of the turboexpander during the disassembly and installation process, reducing the reliability and service life of the equipment. In addition, frequent disassembly and installation will also increase the maintenance cost of the equipment and affect production efficiency. Summary of the invention

[0004] In view of this, the present application aims to propose a ball bearing lubricating oil replenishing structure to solve the problem of inconvenience in replenishing lubricating oil to the ball bearings in the turbine.

[0005] To achieve the above purpose, the technical solution of this application is implemented as follows: The present application provides a ball bearing lubricating oil replenishing structure, comprising a working impeller, the working impeller is connected to a main shaft, the main shaft is rotatably arranged in a volute through a plurality of ball bearings arranged thereon, a cavity is formed inside the volute, and a driving mechanism is arranged in the cavity, a flexible material is connected to the movable end of the driving mechanism, an oil inlet pipeline is also arranged in the cavity, and the oil inlet end of the oil inlet pipeline adds lubricating oil to the flexible material; The driving mechanism is controlled to move so as to squeeze the flexible material to deform, so that the lubricating oil added to the flexible material is replenished to the ball bearing.

[0006] Furthermore, there are two ball bearings, which are correspondingly installed in the volute and located on both sides of the cavity.

[0007] Furthermore, a sliding guide groove is embedded above the cavity; The driving mechanism comprises a driving source, a bidirectional threaded rod and a sliding block, wherein the driving source is arranged on the outer wall of the volute, the output shaft of the driving source is connected to the bidirectional threaded rod, the bidirectional threaded rod extends into the cavity and is rotatably connected to the volute, the number of the sliding blocks is two, the two sliding blocks are arranged and correspondingly assembled on the bidirectional threaded rod, and the sliding blocks slide along the direction in which the sliding guide groove is opened; The flexible material is fixedly arranged on the two sliding blocks.

[0008] Furthermore, the bidirectional threaded rods are each provided with a limiting ring for limiting the sliding area of ​​the sliding block.

[0009] Furthermore, the driving source is a servo motor.

[0010] Furthermore, the flexible material is a sponge block, and the sponge block is fixed to a side of the sliding block close to the ball bearing.

[0011] Furthermore, an oil delivery channel is reserved in the volute, and the oil delivery channel is connected to the cavity; The oil inlet pipeline is installed in the oil delivery channel, one end of the oil inlet pipeline is connected to an external oil supply device, and the other end extends into the cavity and is equipped with an oil inlet end head, and the oil inlet end head is located above the flexible material.

[0012] Furthermore, an oil outlet channel is provided at the bottom of the cavity, an oil extraction pipeline is installed in the oil outlet channel, and an oil extraction pump is provided on the oil extraction pipeline.

[0013] Furthermore, it also includes a cleaning mechanism, which includes a nozzle arranged at the bottom of the cavity, and the nozzle is connected to an external liquid pump through a liquid inlet pipe to supply water to the nozzle.

[0014] Furthermore, there are multiple nozzles, and they are respectively arranged toward the two ball bearings.

[0015] Compared with the prior art, the ball bearing lubricating oil replenishing structure described in this application has the following beneficial effects: The ball bearing lubricating oil replenishing structure described in the present application utilizes a driving mechanism and a flexible material, and by adding lubricating oil to the flexible material, ensures that the lubricating oil can be evenly replenished on the surface of the bearing ball, and can realize uniform lubrication of the bearing without disassembling the bearing, effectively reducing friction and wear, and extending the service life of the bearing. At the same time, the cleaning mechanism equipped can clean the bearing before lubrication, which can effectively remove waste lubricating oil and impurities, further improving the lubrication effect and the overall performance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 This is a schematic diagram of a ball bearing lubricating oil replenishing structure described in an embodiment of the present application.

[0018] Description of reference numerals: 1-volute; 2-working impeller; 3-main shaft; 4-ball bearing; 5-cavity; 51-sliding guide groove; 6-driving mechanism; 61-sliding block; 62-sponge block; 63-oil inlet pipeline; 64-bidirectional threaded rod; 65-driving source; 66-oil inlet end; 7-cleaning mechanism; 71-nozzle; 72-oil extraction pipeline; 73-liquid extraction pump; 74-liquid inlet pipeline. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0020] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and other similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but can be

[0021] Including electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0022] See also Figure 1 As shown, this example provides a ball bearing lubricating oil replenishing structure, including a working impeller 2, a main shaft 3 is connected to the working impeller 2, the main shaft 3 is rotatably arranged in a volute 1 through a plurality of ball bearings 4 arranged thereon, a cavity 5 is formed inside the volute 1, and a driving mechanism 6 is arranged in the cavity 5, a flexible material is connected to the moving end of the driving mechanism 6, an oil inlet pipe 63 is also arranged in the cavity 5, and an oil inlet end 66 of the oil inlet pipe 63 adds lubricating oil to the flexible material; The driving mechanism 6 is controlled to operate so as to squeeze the flexible material to deform, so that the lubricating oil added to the flexible material is replenished to the ball bearing 4 .

[0023] Specifically, in this embodiment, the main shaft 3 is rotatably connected to the volute 1 through two bearings. When in use, the high-pressure gas enters the volute 1 to drive the working impeller 2 to rotate. When the working impeller 2 rotates, it drives the main shaft 3 to rotate. The main shaft 3 is connected to the generator input shaft, and when it rotates, it drives the generator input shaft to rotate to achieve power generation.

[0024] The driving mechanism 6 is in motion to add lubricating oil to the surface of the flexible material. After the lubricating oil soaks the flexible material, the sliding block 61 slides to make the flexible material contact with the ball contact side of the ball bearing 4. When the ball bearing 4 rotates, the flexible material can apply the lubricating oil to the surface of the ball, thereby replenishing the lubricating oil to the ball bearing 4 to achieve the effect of lubricating the ball bearing 4.

[0025] The lubricating oil replenishing structure of a ball bearing 4 described in this embodiment utilizes a driving mechanism 6 and a flexible material, and by adding lubricating oil to the flexible material, ensures that the lubricating oil can be evenly replenished on the surface of the bearing ball, and can realize uniform lubrication of the bearing without disassembling the bearing, effectively reducing friction and wear, and extending the service life of the bearing. At the same time, the cleaning mechanism 7 equipped can clean the bearing before lubrication, effectively removing waste lubricating oil and impurities, further improving the lubrication effect and the overall performance of the equipment.

[0026] It should be noted that the cavity 5 is formed by the two half structures of the volute 1, and the two volutes 1 are connected by a flange. Figure 1 Therefore, no further elaboration will be given.

[0027] In some embodiments, the number of ball bearings 4 is two, and the two ball bearings 4 are correspondingly installed in the volute 1 and located on both sides of the cavity 5; A sliding guide groove 51 is embedded in the upper part of the cavity 5, and the sliding guide groove 51 can guide the sliding of the sliding block 61; The driving mechanism 6 includes a driving source 65, a bidirectional threaded rod 64 and a sliding block 61. The driving source 65 is a servo motor, which is arranged on the outer wall of the volute 1. The output shaft of the servo motor is connected to the bidirectional threaded rod 64. The bidirectional threaded rod 64 extends into the cavity 5 and is rotatably connected to the volute 1. There are two sliding blocks 61. The two sliding blocks 61 are arranged and assembled on the bidirectional threaded rod 64 accordingly. The sliding blocks 61 slide along the direction in which the sliding guide groove 51 is opened. The bidirectional threaded rod 64 is provided with a limit ring that limits the sliding area of ​​the sliding block 61. The flexible material is a sponge block 62 , and the sponge block 62 is fixed to a side of the sliding block 61 close to the ball bearing 4 .

[0028] Specifically, in this embodiment, by arranging the bidirectional threaded rod 64, the sliding block 61 and the sponge block 62 in the cavity 5, the bidirectional threaded rod 64 can rotate in the cavity 5, and its end is connected to the output shaft of the servo motor, and the servo motor is started to control the rotation of the bidirectional threaded rod 64. At this time, the sliding block 61 can approach or move away from the bidirectional threaded rod 64 at the same time. When the two sliding blocks 61 move to the farthest distance, the sponge block 62 is squeezed to the minimum state, and the lubricating oil on the sponge block 62 is replenished into the ball bearing 4, thereby achieving lubrication of the ball bearing 4.

[0029] In some embodiments, an oil delivery channel is reserved in the volute 1, and the oil delivery channel is connected to the cavity 5; The oil inlet pipe 63 is installed in the oil delivery channel, one end of the oil inlet pipe 63 is connected to the external oil supply device, and the other end extends into the cavity 5 and is equipped with an oil inlet end 66, which is located above the flexible material; An oil outlet passage is also provided at the bottom of the cavity 5 , in which an oil extraction pipeline 72 is installed, and an oil extraction pump is provided on the oil extraction pipeline 72 .

[0030] Specifically, in the present embodiment, there are two oil inlet ends 66, which are respectively arranged above the two sponge blocks 62. The oil delivery channel and the oil inlet pipe 63 are Y-shaped structures. The two oil inlet ends 66 are fixedly connected at both ends of the Y-shaped structure. The upper end of the oil inlet pipe 63 extends to the outside of the volute 1 and is connected to an external oil supply device. When adding lubricating oil, the oil supply device switch is started to inject the lubricating oil into the oil inlet pipe 63, so that the lubricating oil is replenished to the surface of the sponge block 62 through the oil inlet pipe 63 to fill the entire sponge block 62.

[0031] It should be noted that in this embodiment, due to the setting of the limit ring, the setting of the oil inlet pipe 63 will not affect the movement stroke of the sliding block 61. In addition to using the limit ring, a through groove for the oil inlet pipe 63 to pass through can also be opened on the sliding block 61 to avoid unnecessary influence between the two.

[0032] In some embodiments, a cleaning mechanism 7 is also included. The cleaning mechanism 7 includes a nozzle 71 arranged at the bottom of the cavity 5. There are multiple nozzles 71, which are respectively arranged toward two ball bearings 4. The nozzle 71 is connected to an external liquid pump 73 through a liquid inlet pipe 74 to supply water to the nozzle 71.

[0033] Specifically, in this embodiment, by providing a cleaning mechanism 7, a lubricating oil cleaner can be sprayed on the side of the ball bearing 4 to clean the waste lubricating oil of the ball bearing 4, and then the ball bearing 4 is lubricated by a sponge block 62 with lubricating oil added thereon, thereby ensuring the cleanliness of the lubricating oil and thus extending the life of the ball bearing 4. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and the specification of the present invention.

[0034] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A ball bearing lubricating oil replenishing structure, characterized in that: It includes a working impeller, the working impeller is connected to a main shaft, the main shaft is rotatably arranged in a volute through a plurality of ball bearings arranged thereon, a cavity is formed inside the volute, a driving mechanism is arranged in the cavity, a flexible material is connected to the movable end of the driving mechanism, an oil inlet pipeline is also arranged in the cavity, and the oil inlet end of the oil inlet pipeline adds lubricating oil to the flexible material; The driving mechanism is controlled to move so as to squeeze the flexible material to deform, so that the lubricating oil added to the flexible material is replenished to the ball bearing.

2. A ball bearing lubricating oil replenishing structure according to claim 1, characterized in that: The number of the ball bearings is two, and the two ball bearings are correspondingly installed in the volute and located on both sides of the cavity.

3. A ball bearing lubricating oil replenishing structure according to claim 1, characterized in that: A sliding guide groove is embedded in the upper part of the cavity; The driving mechanism comprises a driving source, a bidirectional threaded rod and a sliding block, wherein the driving source is arranged on the outer wall of the volute, the output shaft of the driving source is connected to the bidirectional threaded rod, the bidirectional threaded rod extends into the cavity and is rotatably connected to the volute, the number of the sliding blocks is two, the two sliding blocks are arranged and correspondingly assembled on the bidirectional threaded rod, and the sliding blocks slide along the direction in which the sliding guide groove is opened; The flexible material is fixedly arranged on the two sliding blocks.

4. A ball bearing lubricating oil replenishing structure according to claim 3, characterized in that: The bidirectional threaded rods are each provided with a limiting ring for limiting the sliding area of ​​the sliding block.

5. A ball bearing lubricating oil replenishing structure according to claim 3, characterized in that: The driving source is a servo motor.

6. A ball bearing lubricating oil replenishing structure according to claim 3, characterized in that: The flexible material is a sponge block, and the sponge block is fixed on a side of the sliding block close to the ball bearing.

7. A ball bearing lubricating oil replenishing structure according to claim 1, characterized in that: An oil delivery channel is reserved in the volute, and the oil delivery channel is communicated with the cavity; The oil inlet pipeline is installed in the oil delivery channel, one end of the oil inlet pipeline is connected to an external oil supply device, and the other end extends into the cavity and is equipped with an oil inlet end head, and the oil inlet end head is located above the flexible material.

8. A ball bearing lubricating oil replenishing structure according to claim 1, characterized in that: An oil outlet channel is also provided at the bottom of the cavity, an oil extraction pipeline is installed in the oil outlet channel, and an oil extraction pump is provided on the oil extraction pipeline.

9. A ball bearing lubricating oil replenishing structure according to claim 1, characterized in that: It also includes a cleaning mechanism, which includes a nozzle arranged at the bottom of the cavity, and the nozzle is connected to an external liquid pump through a liquid inlet pipe to supply water to the nozzle.

10. A ball bearing lubricating oil replenishing structure according to claim 9, characterized in that: There are multiple nozzles, and they are respectively arranged toward the two ball bearings.

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