Bearing grease adding device
By designing a bearing grease filler, simultaneous oil supply from multiple oil injection holes is achieved, solving the problem of time-consuming and labor-intensive manual grease filling, improving lubrication efficiency, reducing bearing wear, lowering maintenance costs, and ensuring stable equipment operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CGN (SHANGYI) WIND POWER CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-04-24
AI Technical Summary
In the existing technology, manually adding grease to each grease hole with a grease gun is time-consuming and labor-intensive, making it difficult to ensure uniform grease application to the pitch bearing. This results in uneven lubrication, causing fatigue damage and hardware wear to the pitch bearing.
A bearing grease applicator was designed, including a distributor, quick couplings, and ferrule fittings. It is connected to the grease injection nozzles through a distribution pipe, enabling simultaneous grease supply through multiple injection holes. The design of the quick couplings and ferrule fittings simplifies the installation and disassembly process of the equipment, ensuring uniform distribution and efficient delivery of grease.
It improves the efficiency of grease distribution, saves time, reduces bearing wear, lowers maintenance costs, ensures stable equipment operation, and improves equipment maintainability.
Smart Images

Figure CN224162427U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing technology, specifically to a bearing grease applicator. Background Technology
[0002] According to the domestic wind power industry, the pitch bearings of wind turbine generators that have been in operation for more than 10 years often experience wear and tear on the steel balls and retainers due to uneven lubrication. The annual failure rate is as high as 5%, which can lead to abnormal noises, jamming, and failure to operate normally, resulting in increased maintenance costs. Therefore, it is necessary to strengthen the maintenance of pitch bearings in the annual operation and maintenance work to reduce the bearing failure rate.
[0003] Generally, pitch bearings have multiple oil filling holes evenly distributed throughout. In order to ensure uniform grease lubrication of the bearing, it is necessary to fill each of the multiple oil filling holes with oil separately.
[0004] The existing equipment has the following disadvantages: The existing lubrication method generally involves manually adding grease to each lubrication hole with a grease gun, which is time-consuming and labor-intensive, and it is also difficult to ensure uniform grease addition. This results in uneven lubrication of the pitch bearing, which can cause fatigue damage and wear of the pitch bearing.
[0005] Therefore, this application proposes a bearing grease applicator to solve the above-mentioned problems. Utility Model Content
[0006] The purpose of this invention is to provide a bearing grease applicator to solve the problem of manually adding grease to each oiling hole with an oil gun, which is time-consuming and laborious, and also makes it difficult to ensure uniform grease application, resulting in uneven lubrication of the pitch bearing, which can lead to fatigue damage and hardware wear of the pitch bearing.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a bearing grease applicator, comprising:
[0008] A distributor is located on one side of the bearing body and connected to the grease nipple on the bearing body via a distribution pipe, for supplying oil to multiple grease nipples;
[0009] A quick connector is disposed at an equal angle on the outer circular end face of the distributor, for connecting the shunt pipe to the distributor;
[0010] A compression fitting is located on the side of the distributor away from the bearing body and is connected to the oil pump via an oil supply pipe.
[0011] An inlet pipe is provided at the position where the dispenser connects to the ferrule connector;
[0012] The distributor is provided with an outlet pipe that communicates with the inlet pipe at the position where it connects to the diversion pipe.
[0013] The quick connector includes:
[0014] A fixing tube is installed on the liquid outlet tube;
[0015] The connecting pipe has one end inserted into the inside of the shunt pipe and the other end fitted onto the fixed pipe.
[0016] The quick connector further includes:
[0017] Connecting ears are positioned at equal angles on the outside of the connecting tube;
[0018] The mounting shaft is provided on the connecting lug;
[0019] A fixing block, sleeved on the mounting shaft, is used to fix the fixing tube inserted inside the connecting tube;
[0020] A limiting plate is disposed on the side of the fixing block away from the fixing tube;
[0021] A retaining ring, inserted into the connecting lug, is used to restrict the installation position of the fixing block;
[0022] A fixing groove is provided at the position where the fixing tube connects to the fixing block.
[0023] The compression fitting includes:
[0024] The first connector is located on the inlet pipe;
[0025] The second connector is installed on the oil pipeline;
[0026] A sealing plug is provided on the second connector to seal the first connector and the second connector.
[0027] Wherein, a first connecting block is provided at an equal angle on the side where the first connector connects to the second connector;
[0028] The first connecting block is provided with a first snap-fit block;
[0029] A second connecting block is provided on the side of the second connector that connects to the first connector;
[0030] The second connecting block is provided with a second snap-fit block;
[0031] The first snap-fit block has a first snap-fit groove for fixing the second connecting block;
[0032] The second snap-fit block has a second snap-fit groove for fixing the first connecting block.
[0033] Compared with the prior art, the beneficial effects of this utility model are:
[0034] 1. This utility model, by setting up this device, can simultaneously provide grease to multiple grease nipples on the bearing body, which greatly improves the grease distribution efficiency. Compared with the traditional method of grease injection one by one, it saves a lot of time, ensures that all parts of the bearing can be quickly lubricated, effectively reduces bearing wear caused by untimely lubrication, and ensures efficient and stable operation of the equipment.
[0035] 2. This utility model, through the design of quick connectors, makes the installation and disassembly of the distributor and the shunt tube extremely convenient. When maintaining the equipment or replacing parts, no complicated tools or operations are required to quickly connect and disconnect the shunt tube, which greatly shortens maintenance time, reduces maintenance costs, and improves the maintainability of the equipment. The compression fitting reliably connects the distributor and the oil supply pipe, ensuring that the grease delivered by the oil pump can smoothly enter the distributor through the oil supply pipe, and then be delivered to each grease nipple through the shunt tube. The components work together to form an efficient and stable lubrication cycle. Attached Figure Description
[0036] Figure 1 This is a schematic diagram of the main structure in one embodiment of the present invention;
[0037] Figure 2 This is a schematic diagram of one side of an embodiment of the present invention;
[0038] Figure 3 This is a front view of a structural schematic diagram of one embodiment of the present invention;
[0039] Figure 4 This is a schematic diagram of the connection between the distributor and the bearing body in one embodiment of the present invention;
[0040] Figure 5 This is a schematic diagram of the ferrule connector in one embodiment of the present invention;
[0041] Figure 6 This is a schematic diagram of the structure of the quick connector in one embodiment of the present invention;
[0042] Figure 7 This is a schematic diagram of the connection between the quick connector and the distributor in one embodiment of the present invention.
[0043] In the diagram: 11. Bearing body; 101. Oil filling hole; 11. Oil filling nozzle; 2. Diverter pipe; 3. Distributor; 31. Inlet pipe; 32. Outlet pipe; 4. Quick connector; 41. Fixing pipe; 42. Connecting ear; 4201. Slot; 43. Mounting shaft; 44. Limiting plate; 45. Fixing block; 46. Connecting pipe; 47. Insert ring; 5. Oil supply pipe; 51. Compression fitting; 511. First connector; 5111. First connecting block; 5112. First snap-fit block; 511201. First snap-fit groove; 512. Sealing plug; 513. Second connector; 5131. Second connecting block; 5132. Second snap-fit block; 513201. Second snap-fit groove; 6. Oil pump; 7. Oil tank. Detailed Implementation
[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0045] Please see Figure 1-7 This utility model provides a technical solution: a bearing grease applicator, comprising: a distributor 3, disposed on one side of the bearing body 1 and connected to the grease nipple 11 on the bearing body 1 via a diversion pipe 2, for supplying oil to multiple grease nipples 11; a quick connector 4, disposed at equal angles on the outer circular end face of the distributor 3, for connecting the diversion pipe 2 to the distributor 3; and a compression fitting 51, disposed on the side of the distributor 3 away from the bearing body 1 and connected to the oil pump 6 via an oil supply pipe 5.
[0046] It should be noted that during operation, the distribution pipes 2 are fixed to the grease nipples 11 on the bearing body 1, and then the distribution pipes 2 are fixedly connected to the distributor 3 via the quick connector 4. The distributor 3 is then connected to the oil supply pipe 5 via the compression fitting 51. The oil pump 6 is then turned on, and the grease in the oil tank 7 is transported to the distributor 3 through the oil supply pipe 5. The grease is then evenly distributed into multiple distribution pipes 2 via the distributor 3, and flows from the grease nipples 11 into the oil filling holes 101 on the bearing body 1, thus evenly injecting the grease into the interior of the bearing body 1. This device can simultaneously provide grease to multiple grease nipples 11 on the bearing body 1, greatly improving the grease distribution efficiency. Compared to the traditional method of injecting grease one by one, this method saves energy. It saves a lot of time, ensures that all parts of the bearing can be quickly lubricated, effectively reduces bearing wear caused by untimely lubrication, and ensures efficient and stable operation of the equipment. The design of quick connector 4 makes the installation and disassembly of the diverter pipe 2 and distributor 3 very convenient. When maintaining the equipment or replacing parts, the connection and disconnection of the diverter pipe 2 can be completed quickly without complicated tools and operations, which greatly shortens the maintenance time, reduces the maintenance cost, and improves the maintainability of the equipment. The compression fitting 51 reliably connects the distributor 3 and the oil supply pipe 5, ensuring that the grease delivered by the oil pump 6 can smoothly enter the distributor 3 through the oil supply pipe 5, and then be delivered to each grease nipple 11 through the diverter pipe 2. The components work together to form an efficient and stable lubrication cycle.
[0047] In one embodiment, an inlet pipe 31 is provided at the position where the distributor 3 is connected to the ferrule connector 51; an outlet pipe 32 communicating with the inlet pipe 31 is provided at the position where the distributor 3 is connected to the diversion pipe 2.
[0048] This design is for reference. Figure 2 ,as well as Figure 7 The distributor 3 is connected to the ferrule connector 51 by an inlet pipe 31, and to the diverter pipe 2 by an outlet pipe 32 connected to the inlet pipe 31. This creates a clear and direct grease delivery path, reducing the detour and resistance of the fluid in the distributor 3, and ensuring that the grease can be efficiently and smoothly delivered from the oil pump 6 to each grease nipple 11 through the distributor 3, thereby improving lubrication efficiency.
[0049] In one embodiment, the quick connector 4 includes: a fixing tube 41 disposed on the liquid outlet tube 32; and a connecting tube 46, one end of which is inserted into the inside of the diversion tube 2, and the other end of which is sleeved on the fixing tube 41.
[0050] This design is for reference. Figure 6One end of the connecting pipe 46 is inserted into the diversion pipe 2, and the other end is fitted with a fixing pipe 41. The fixing pipe 41 is threadedly connected to the outlet pipe 32. By setting the quick connector 4, the connection operation between the diversion pipe 2 and the distributor 3 is extremely simple and quick. When installing, maintaining or replacing lubricating parts of the equipment, the connection time can be greatly shortened and the work efficiency can be improved.
[0051] In one embodiment, the quick connector 4 further includes: a connecting ear 42, which is disposed at an equal angle on the outside of the connecting tube 46; a mounting shaft 43, which is disposed on the connecting ear 42; a fixing block 45, which is sleeved on the mounting shaft 43 and is used to fix the fixing tube 41 inserted into the connecting tube 46; a limiting plate 44, which is disposed on the side of the fixing block 45 away from the fixing tube 41; a plug ring 47, which is inserted into the connecting ear 42 and is used to limit the installation position of the fixing block 45; and a fixing groove is provided at the position where the fixing tube 41 connects with the fixing block 45.
[0052] This design is for reference. Figure 6 ,as well as Figure 7 The fixing tube 41 is inserted into the inside of the connecting tube 46. Then, the limiting block 44 is rotated so that the fixing block 45 rotates along the mounting shaft 43 and then rotates into the fixing groove opened on the fixing tube 41. At this time, the fixing tube 41 and the connecting tube 46 are fixed. Then, the insertion ring 47 is inserted into the slot 4201 opened on the connecting ear 42 to complete the fixing of the limiting plate fixing block 45, thereby completing the fixing of the fixing tube 41 and the connecting tube 46. When it is necessary to disassemble the connecting tube 46, the insertion ring 47 is pulled out from the inside of the connecting ear 42, and then the limiting plate 44 is rotated in the opposite direction so that the fixing block 45 rotates out from the fixing groove, releasing the restriction of the fixing block 45 on the fixing tube 41. Then, the fixing tube 41 is pulled out from the inside of the connecting tube 46. By setting this device, the quick connector 4 can be easily and quickly disassembled and installed, which facilitates the inspection, cleaning and replacement of the connection parts, reduces the maintenance difficulty and cost, and improves the maintainability of the equipment.
[0053] In one embodiment, the ferrule connector 51 includes: a first connector 511 disposed on the inlet pipe 31; a second connector 513 disposed on the oil supply pipe 5; and a sealing plug 512 disposed on the second connector 513 for sealing the first connector 511 and the second connector 513.
[0054] This design is for reference. Figure 5 The first connector 511 is connected to the second connector 513 and then fixed to the connection, thus completing the fixing of the oil supply pipe 5 and the liquid inlet pipe 31. The sealing plug 512 can effectively seal the first connector 511 and the second connector 513 to prevent the grease from leaking from the joint during the transportation process, ensuring the normal operation of the lubrication system and avoiding insufficient lubrication and environmental pollution caused by leakage.
[0055] In one embodiment, a first connecting block 5111 is provided at an equal angle on the side where the first connector 511 is connected to the second connector 513; a first snap-fit block 5112 is provided on the first connecting block 5111; a second connecting block 5131 is provided on the side where the second connector 513 is connected to the first connector 511; a second snap-fit block 5132 is provided on the second connecting block 5131; a first snap-fit groove 511201 for fixing the second connecting block 5131 is provided on the first snap-fit block 5112; and a second snap-fit groove 513201 for fixing the first connecting block 5111 is provided on the second snap-fit block 5132.
[0056] This design is for reference. Figure 5 Align the first connecting block 5111 with the second snap-fit groove 513201 on the second snap-fit block 5132, and align the second connecting block 5131 with the first snap-fit groove 511201 on the first snap-fit block 5112. Then rotate to snap the first connecting block 5111 into the second snap-fit groove 513201 and the second connecting block 5131 into the first snap-fit groove 511201, thus completing the fixing of the first connector 511 and the second connector 513. This precise snap-fit structure ensures that the two connectors fit tightly and reliably when connected, effectively resisting the vibration and tension generated during equipment operation, preventing the connectors from loosening or falling off, and ensuring the stable operation of the grease delivery system. During installation, operators can quickly and accurately connect the first connector 511 and the second connector 513 without complicated debugging and adjustment, greatly improving installation efficiency and shortening the equipment installation and maintenance time.
[0057] Furthermore, if the embodiments involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relation to the specification. The significance or implied number of the indicated technical features is not specified. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.
Claims
1. A bearing grease applicator, characterized in that, include: A distributor (3) is located on one side of the bearing body (1) and connected to the oil injection nozzle (11) on the bearing body (1) via a diversion pipe (2) for supplying oil to multiple oil injection nozzles (11); Quick connector (4) is set at equal angles on the outer circular end face of the distributor (3) for connecting the diverter pipe (2) to the distributor (3); A compression fitting (51) is located on the side of the distributor (3) away from the bearing body (1) and is connected to the oil pump (6) via an oil supply pipe (5).
2. The bearing grease applicator according to claim 1, characterized in that: An inlet pipe (31) is provided at the position where the distributor (3) connects to the ferrule connector (51); The distributor (3) is provided with an outlet pipe (32) that communicates with the inlet pipe (31) at the position where it is connected to the diversion pipe (2).
3. A bearing grease applicator according to claim 2, characterized in that: The quick connector (4) includes: A fixed tube (41) is installed on the liquid outlet tube (32); The connecting pipe (46) is inserted into the inside of the diversion pipe (2) at one end and sleeved on the fixed pipe (41) at the other end.
4. A bearing grease applicator according to claim 3, characterized in that: The quick connector (4) also includes: Connecting ears (42) are arranged at equal angles on the outside of the connecting tube (46); A mounting shaft (43) is provided on the connecting ear (42); A fixing block (45) is sleeved on the mounting shaft (43) and is used to fix the fixing tube (41) inserted into the connecting tube (46); A limiting plate (44) is disposed on the side of the fixing block (45) away from the fixing tube (41); A retaining ring (47) is inserted into the connecting ear (42) to restrict the installation position of the fixing block (45); A fixing groove is provided at the position where the fixing tube (41) connects with the fixing block (45).
5. A bearing grease applicator according to claim 2, characterized in that: The ferrule connector (51) includes: The first connector (511) is provided on the liquid inlet pipe (31); The second connector (513) is installed on the oil pipeline (5); A sealing plug (512) is disposed on the second connector (513) for sealing the first connector (511) and the second connector (513).
6. A bearing grease applicator according to claim 5, characterized in that: A first connecting block (5111) is provided at an equal angle on the side where the first connector (511) and the second connector (513) are connected; The first connecting block (5111) is provided with a first snap-fit block (5112); A second connecting block (5131) is provided on the side of the second connector (513) that is connected to the first connector (511); The second connecting block (5131) is provided with a second snap-fit block (5132); The first snap-fit block (5112) is provided with a first snap-fit groove (511201) for fixing the second connecting block (5131); The second snap-fit block (5132) has a second snap-fit groove (513201) for fixing the first connecting block (5111).