Gear lubricating device and quantitative grease separator thereof

Abstract

The utility model relates to a gear lubricating device and a quantitative grease separator thereof. Mainly comprises a valve body, a plunger valve element and a grease outlet sleeve, the valve body is cylindrical, three valve cavities, a grease inlet main oil way and three radial grease inlet branches are arranged in the valve body, the main oil way is communicated with the valve cavity through the branches, the valve cavity is further provided with two grease outlet oil ways and two communicating oil ways, and six communicating grooves are formed in the peripheral face of the valve cavity; the three plunger valve elements are assembled in the valve cavity in a sliding and sealing mode, and two annular grooves are symmetrically formed in the peripheral face of each plunger valve element. The valve body is sleeved with the grease outlet sleeve in a sliding and sealing mode, grease outlets communicated with the inside and the outside of the grease outlet sleeve are formed in the grease outlet sleeve in one-to-one correspondence with the grease outlet oil ways, two annular grease outlet grooves are formed in the peripheral face of the grease outlet sleeve, it can be guaranteed that the grease outlet amounts of the grease outlets in the center pipe are the same, and then it is guaranteed that grease is evenly discharged from the grease outlet channels of the lubricating pinion; and all areas of the yaw gear are uniformly lubricated.

Description

Technical Field

[0001] This utility model relates to a gear lubrication device and its quantitative grease separator. Background Technology

[0002] In the wind power field, yaw gears are generally lubricated by lubrication pinions. Lubrication pinions include two main types: plate-type and block-type. The main principle is that grease is introduced into the central tube, the gear part is fitted onto the central tube, and the gear part meshes with the yaw gear that needs lubrication to rotate. The central tube remains stationary, and multiple grease outlet channels are evenly distributed along the length of the teeth on the gear part, extending to the central tube. As the gear part rotates, the multiple corresponding grease outlets on the central tube will connect with the grease outlet channels in turn, thereby introducing the grease in the central tube to the tooth surface of the gear part through the grease outlet channels. Since the gear part and the yaw gear to be lubricated need to mesh and drive, the grease on the lubricating tooth surface will adhere to the yaw gear, thus achieving the lubrication of the yaw gear tooth surface. However, since the grease in the central tube flows from one end to the other, the amount of grease entering the multiple grease outlets along the length of the central tube is greater closer to the grease inlet. This results in the grease flowing out of the multiple grease outlets along the tooth length of the gear being more abundant closer to the grease inlet of the central tube. In other words, the grease is unevenly distributed on the surface of the gear. This leads to uneven lubrication in different areas of the yaw gear to be lubricated. Some areas have excessive grease overflowing and polluting the environment, while other areas have too little grease, resulting in insufficient lubrication and causing problems such as rust and wear on the tooth surface. Utility Model Content

[0003] Based on the above problems, this utility model provides a quantitative grease dispenser, which is installed in the central tube of the lubricating pinion. It can ensure that the amount of grease discharged from each grease outlet in the central tube is the same, thereby ensuring that the grease is discharged evenly from each grease outlet channel of the lubricating pinion, and realizing uniform lubrication of each area of ​​the yaw gear. The purpose of this utility model is also to provide a gear lubrication device composed of the lubricating pinion and the above-mentioned quantitative grease dispenser.

[0004] The technical solution of this utility model's quantitative fat separator is as follows: The quantitative fat separator includes:

[0005] The valve body is cylindrical and has three valve chambers evenly distributed along its length. A grease inlet main oil passage is provided in the middle of the three valve chambers. One end of the grease inlet main oil passage is blocked. The middle part of the grease inlet main oil passage is connected to the middle of the three valve chambers through three radial grease inlet branches. Each valve chamber has two grease outlet oil passages symmetrically arranged, which are connected to the valve chamber and the outside respectively. Two connecting oil passages are symmetrically arranged between the two grease outlet oil passages of each valve chamber. The two ends of each valve chamber are connected to the two connecting oil passages of the adjacent valve chamber on one side through two connecting grooves.

[0006] There are three plunger valve cores, which are correspondingly slidably and sealed in the three valve chambers. Each plunger valve core has two annular grooves symmetrically arranged along the length direction on its outer circumferential surface.

[0007] The grease outlet sleeve is slidably and sealed on the valve body. The grease outlet sleeve is provided with grease outlets that connect the inside and outside of the grease outlet sleeve in a one-to-one correspondence with the grease outlet oil passage. Two annular grease outlet grooves are provided on the outer circumference of the grease outlet sleeve. Each annular grease outlet groove corresponds to three grease outlets located on the same side. The positions of the two annular grease outlet grooves are respectively used to correspond to the grease outlets on the central tube of the lubricating pinion.

[0008] During operation, the main grease inlet circuit sequentially connects to an annular groove on a plunger valve core through one of the three radial grease inlet branches. This annular groove is connected to one end of an adjacent valve chamber via a corresponding connecting oil passage and connecting groove, pushing the plunger valve core in the adjacent valve chamber to move to one side. The grease at one end of the plunger valve core flows through the corresponding connecting groove to another annular groove on the plunger valve core. The other annular groove flows into the corresponding annular grease outlet groove via a corresponding grease outlet oil passage and grease outlet.

[0009] Furthermore, the connecting groove is an arc-shaped groove.

[0010] Furthermore, one end of the grease outlet sleeve is provided with a plug, and the other end is provided with a grease inlet connector for connecting to the grease supply source. The grease inlet connector is connected to the main grease inlet oil passage.

[0011] Furthermore, the valve body and / or plunger valve core and / or grease sleeve are made of plastic.

[0012] Furthermore, at least one elastic sealing ring is fitted on the portion between the two annular grooves and on both sides of the plunger valve core.

[0013] The technical solution of the gear lubrication device of this utility model is as follows: The gear lubrication device includes:

[0014] The lubricating pinion includes a gear part and a central tube. The gear part is rotated and sealed outside the central tube. Multiple grease outlet channels are evenly distributed in the radial and axial directions inside the gear part. At least two grease outlets are provided on the central tube corresponding to the grease outlet channels. When the gear part rotates around the central tube, the grease outlets selectively connect with one of the corresponding grease outlet channels.

[0015] Grease supply source, used to supply grease;

[0016] The valve body is cylindrical and has three valve chambers evenly distributed along its length. A grease inlet main oil passage is provided in the middle of the three valve chambers. One end of the grease inlet main oil passage is blocked and the other end is connected to the grease supply source. The middle part of the grease inlet main oil passage is connected to the middle of the three valve chambers through three radial grease inlet branches. Each valve chamber has two grease outlet oil passages symmetrically arranged, which are connected to the valve chamber and the outside respectively. Two connecting oil passages are symmetrically arranged between the two grease outlet oil passages of each valve chamber. The two ends of each valve chamber are connected to the two connecting oil passages of the adjacent valve chamber on one side through two connecting grooves.

[0017] There are three plunger valve cores, which are correspondingly slidably and sealed in the three valve chambers. Each plunger valve core has two annular grooves symmetrically arranged along the length direction on its outer circumferential surface.

[0018] The grease outlet sleeve is installed inside the central tube and slidably sealed on the valve body. The grease outlet sleeve is provided with grease outlets that connect the inside and outside of the grease outlet sleeve in a one-to-one correspondence with the grease outlet oil passage. Two annular grease outlet grooves are provided on the outer circumference of the grease outlet sleeve. Each annular grease outlet groove corresponds to three grease outlets located on the same side. The positions of the two annular grease outlet grooves correspond to the grease outlets on the central tube.

[0019] During operation, the grease from the grease supply source passes through the main grease inlet passage and sequentially through one of the three radial grease inlet branches to connect with an annular groove on a plunger valve core. This annular groove is connected to one end of an adjacent valve chamber through a corresponding connecting passage and connecting groove, pushing the plunger valve core in the adjacent valve chamber to move to one side. The grease at one end of the plunger valve core flows through the corresponding connecting groove to another annular groove on the aforementioned plunger valve core. The other annular groove flows into the corresponding annular grease outlet groove through a corresponding grease outlet passage and grease outlet.

[0020] Furthermore, the connecting groove is an arc-shaped groove.

[0021] Furthermore, one end of the grease outlet sleeve is provided with a plug, and the other end is provided with a grease inlet connector that connects to the grease supply source. The grease inlet connector is connected to the main grease inlet oil circuit.

[0022] Furthermore, the valve body and / or plunger valve core and / or grease sleeve are made of plastic.

[0023] Furthermore, at least one elastic sealing ring is fitted on the portion between the two annular grooves and on both sides of the plunger valve core.

[0024] Furthermore, the grease outlet sleeve and the central tube are respectively provided with positioning and fixing structures.

[0025] Furthermore, the grease supply source includes a lubrication pump and a distributor, and the outlet of the lubrication pump or the outlet of the distributor is connected to the main grease inlet circuit via an oil pipe.

[0026] Furthermore, the lubrication part of the lubricating pinion is composed of multiple gear pieces spliced ​​together.

[0027] Furthermore, the lubrication part of the lubricating pinion is machined as a single piece.

[0028] Furthermore, the plunger valve core, valve body, grease outlet sleeve, and central tube are made of stainless steel.

[0029] The beneficial effects of this utility model are as follows: Compared with the prior art, the gear lubrication device and its quantitative grease dispenser of this utility model adopt a working principle similar to a progressive distributor. Each plunger valve core moves alternately and sequentially, and each grease outlet also moves alternately and sequentially. Then, through the connection between the annular groove on the grease outlet sleeve and the corresponding grease outlet of the central tube, the distributed grease is smoothly and evenly supplied to all parts of the tooth surface of the yaw gear to be lubricated. Since each plunger valve core and valve cavity has the same size, the amount of grease discharged each time the plunger moves is also the same, ensuring that the grease is as uniform as possible. In particular, it can achieve the same amount of grease output from each grease outlet along the length of the central tube, ensuring uniform lubrication of the yaw gear to be lubricated. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the internal structure of the quantitative oil separator of this utility model when it is installed inside the lubrication pinion and working.

[0031] Figure 2 A three-dimensional view of a quantitative fat separator;

[0032] Figure 3 An exploded view of the valve body and grease outlet sleeve;

[0033] Figure 4 This is a cross-sectional three-dimensional structural diagram of the grease outlet cannula;

[0034] Figure 5 An exploded view of the valve body and plunger valve core;

[0035] In the diagram: 1-Lubricating pinion, 11-Gear section, 111-Grease outlet channel, 12-Central tube, 121-Grease outlet; 2-Grease outlet sleeve, 21-Grease outlet, 22-Annular grease outlet groove; 3-Valve body, 31-Valve cavity, 32-Main grease inlet passage, 33-Radial grease inlet branch passage, 34-Grease outlet passage, 35-Connecting passage, 36-Connecting groove, 37-Process hole (plugging); 4-Plug valve core, 41-Annular groove; 5-Plug, 6-Grease inlet connector. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0040] Specific embodiments of the quantitative fat separator of this utility model are as follows: Figure 1-5 As shown, the quantitative grease dispenser includes a valve body 3, a plunger valve core 4, a grease outlet sleeve 2, a plug 5, a grease inlet connector 6, etc. In order to reduce costs, the material of each component in this embodiment is plastic. In order to ensure the sliding sealing performance between the plunger valve core 4 and the valve body 3, elastic rubber sealing rings are nested on the three large diameter sections of the plunger valve core 4 respectively.

[0041] Specifically, such as Figure 1 , 5As shown, the valve body 3 is cylindrical, with three cylindrical valve chambers 31 evenly distributed along its length. A grease inlet main oil passage 32, also cylindrical, is provided in the middle of the three valve chambers 31. One end of the grease inlet main oil passage 32 is sealed by a plug 5, and the other end is connected to a grease supply source through a grease inlet connector 6. The middle part of the grease inlet main oil passage 32 is connected to the middle part of the three valve chambers 31 through three radially evenly distributed grease inlet branches. Each valve chamber 31 has two grease outlet oil passages 34 symmetrically arranged, which are connected to the valve chamber 31 and the outside respectively. In this embodiment, the grease outlet oil passages 34 are located at 1 / 4 of the length of the valve body 3. Two connecting oil passages 35 are symmetrically arranged between the two grease outlet oil passages 34 of each valve chamber 31. In this embodiment, the two connecting oil passages 35 are respectively located at about 1 / 3 and 2 / 3 of the distance from one end of the valve body 3. The two ends of each valve chamber 31 are connected to the two connecting oil passages 35 of the valve chamber 31 on one side through two connecting grooves 36. The connecting grooves 36 are arc-shaped grooves.

[0042] like Figure 1 , 3 As shown in Figure 4, the grease outlet sleeve 2 is installed inside the central tube 12 and is slidably and sealingly fitted onto the valve body 3. That is, the inner diameter of the grease outlet sleeve 2 is the same as the outer diameter of the valve body 3 to facilitate a sliding seal. The grease outlet sleeve 2 has grease outlets 21 corresponding to the grease outlet oil passages 34, connecting the inside and outside of the grease outlet sleeve 2. Two annular grease outlet grooves 22 are provided on the outer circumference of the grease outlet sleeve 2, each corresponding to three grease outlets 21 located on the same side. The positions of the two annular grease outlet grooves 22 correspond to the grease outlets 121 on the central tube 12. One end of the grease outlet sleeve 2 is provided with a plug 5, and the other end is provided with a grease inlet connector 6 connected to the grease supply source. The grease inlet connector 6 is connected to the main grease inlet oil passage 32.

[0043] like Figure 1 , 5 As shown, there are three plunger valve cores 4, which are correspondingly slidably sealed in the three valve chambers 31. Two annular grooves 41 are symmetrically arranged on the outer circumferential surface of each plunger valve core 4 along the length direction. At least one elastic sealing ring is respectively fitted on the plunger valve core 4 between the two annular grooves 41 and on both sides.

[0044] During operation, the grease from the grease supply source enters through the main grease inlet passage 32 and sequentially connects to an annular groove 41 on a plunger valve core 4 via one of the three radial grease inlet branches 33. The annular groove 41 is connected to one end of an adjacent valve chamber 31 via a corresponding connecting passage 35 and a connecting groove 36, pushing the plunger valve core 4 in the adjacent valve chamber 31 to move to one side. The grease at one end of the plunger valve core 4 flows through the corresponding connecting groove 36 to another annular groove 41 on the plunger valve core 4. The other annular groove 41 flows into the corresponding annular grease outlet groove 22 via a corresponding grease outlet passage 34 and a grease outlet 21.

[0045] A specific embodiment of the gear lubrication device of this utility model includes a lubricating pinion 1, a grease supply source, and a quantitative grease dispenser. The lubricating pinion 1 includes a gear section 11 and a central tube 12. The gear section 11 is rotatably and sealingly fitted outside the central tube 12. Multiple grease outlet channels 111 are evenly distributed radially and axially within the gear section 11. At least two grease outlets 121 are provided on the central tube 12 corresponding to the grease outlet channels 111. When the gear section 11 rotates around the central tube 12, the grease outlets 121 selectively connect with one of the corresponding grease outlet channels 111. The lubrication part of the lubricating pinion 1 is composed of multiple gear pieces spliced ​​together or integrally machined.

[0046] A grease supply source for supplying grease includes a lubrication pump and a distributor. The outlet of the lubrication pump or the outlet of the distributor is connected to the main grease inlet line 32 via an oil pipe.

[0047] The structure of the quantitative fat separator is the same as that of the above-described embodiments of the quantitative fat separator, and will not be described again.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A quantitative fat separator, characterized in that, include: The valve body is cylindrical and has three valve chambers evenly distributed along its length. A grease inlet main oil passage is provided in the middle of the three valve chambers. One end of the grease inlet main oil passage is blocked. The middle part of the grease inlet main oil passage is connected to the middle of the three valve chambers through three radial grease inlet branches. Each valve chamber has two grease outlet oil passages symmetrically arranged, which are connected to the valve chamber and the outside respectively. Two connecting oil passages are symmetrically arranged between the two grease outlet oil passages of each valve chamber. The two ends of each valve chamber are connected to the two connecting oil passages of the adjacent valve chamber on one side through two connecting grooves. There are three plunger valve cores, which are correspondingly slidably and sealed in the three valve chambers. Each plunger valve core has two annular grooves symmetrically arranged along the length direction on its outer circumferential surface. The grease outlet sleeve is slidably and sealed on the valve body. The grease outlet sleeve is provided with grease outlets that connect the inside and outside of the grease outlet sleeve in a one-to-one correspondence with the grease outlet oil passage. Two annular grease outlet grooves are provided on the outer circumference of the grease outlet sleeve. Each annular grease outlet groove corresponds to three grease outlets located on the same side. The positions of the two annular grease outlet grooves are respectively used to correspond to the grease outlets on the central tube of the lubricating pinion. During operation, the main grease inlet circuit sequentially connects to an annular groove on a plunger valve core through one of the three radial grease inlet branches. This annular groove is connected to one end of an adjacent valve chamber via a corresponding connecting oil passage and connecting groove, pushing the plunger valve core in the adjacent valve chamber to move to one side. The grease at one end of the plunger valve core flows through the corresponding connecting groove to another annular groove on the plunger valve core. The other annular groove flows into the corresponding annular grease outlet groove via a corresponding grease outlet oil passage and grease outlet.

2. The quantitative fat separator according to claim 1, characterized in that, The connecting groove is an arc-shaped groove.

3. The quantitative fat separator according to claim 1, characterized in that, One end of the grease outlet sleeve is equipped with a plug, and the other end is equipped with a grease inlet connector for connecting to the grease supply source. The grease inlet connector is connected to the main grease inlet oil passage.

4. The quantitative fat separator according to claim 1, characterized in that, The valve body and / or plunger valve core and / or grease sleeve are made of plastic.

5. The quantitative fat separator according to claim 4, characterized in that, At least one elastic sealing ring is fitted on the plunger valve core between the two annular grooves and on both sides.

6. A gear lubrication device, comprising: The lubricating pinion includes a gear part and a central tube. The gear part is rotated and sealed outside the central tube. Multiple grease outlet channels are evenly distributed in the radial and axial directions inside the gear part. At least two grease outlets are provided on the central tube corresponding to the grease outlet channels. When the gear part rotates around the central tube, the grease outlets selectively connect with one of the corresponding grease outlet channels. Grease supply source, used to supply grease; Its characteristic is that it further includes: The valve body is cylindrical and has three valve chambers evenly distributed along its length. A grease inlet main oil passage is provided in the middle of the three valve chambers. One end of the grease inlet main oil passage is blocked and the other end is connected to the grease supply source. The middle part of the grease inlet main oil passage is connected to the middle of the three valve chambers through three radial grease inlet branches. Each valve chamber has two grease outlet oil passages symmetrically arranged, which are connected to the valve chamber and the outside respectively. Two connecting oil passages are symmetrically arranged between the two grease outlet oil passages of each valve chamber. The two ends of each valve chamber are connected to the two connecting oil passages of the adjacent valve chamber on one side through two connecting grooves. There are three plunger valve cores, which are correspondingly slidably and sealed in the three valve chambers. Each plunger valve core has two annular grooves symmetrically arranged along the length direction on its outer circumferential surface. The grease outlet sleeve is installed inside the central tube and slidably sealed on the valve body. The grease outlet sleeve is provided with grease outlets that connect the inside and outside of the grease outlet sleeve in a one-to-one correspondence with the grease outlet oil passage. Two annular grease outlet grooves are provided on the outer circumference of the grease outlet sleeve. Each annular grease outlet groove corresponds to three grease outlets located on the same side. The positions of the two annular grease outlet grooves correspond to the grease outlets on the central tube. During operation, the grease from the grease supply source passes through the main grease inlet passage and sequentially through one of the three radial grease inlet branches to connect with an annular groove on a plunger valve core. This annular groove is connected to one end of an adjacent valve chamber through a corresponding connecting passage and connecting groove, pushing the plunger valve core in the adjacent valve chamber to move to one side. The grease at one end of the plunger valve core flows through the corresponding connecting groove to another annular groove on the aforementioned plunger valve core. The other annular groove flows into the corresponding annular grease outlet groove through a corresponding grease outlet passage and grease outlet.

7. The gear lubrication device according to claim 6, characterized in that, The connecting groove is an arc-shaped groove.

8. The gear lubrication device according to claim 6, characterized in that, One end of the grease outlet sleeve is equipped with a plug, and the other end is equipped with a grease inlet connector that connects to the grease supply source. The grease inlet connector is connected to the main grease inlet circuit.

9. The gear lubrication device according to claim 6, characterized in that, The valve body and / or plunger valve core and / or grease sleeve are made of plastic.

10. The gear lubrication device according to claim 9, characterized in that, At least one elastic sealing ring is fitted on the plunger valve core between the two annular grooves and on both sides.

11. The gear lubrication device according to claim 6, characterized in that, The grease outlet sleeve and the central tube are equipped with corresponding positioning and fixing structures.

12. The gear lubrication device according to claim 6, characterized in that, The grease supply source includes a lubrication pump and a distributor. The outlet of the lubrication pump or the outlet of the distributor is connected to the main grease inlet circuit via an oil pipe.

13. The gear lubrication device according to claim 6, characterized in that, The lubrication section of the lubricating pinion is composed of multiple gear pieces joined together.

14. The gear lubrication device according to claim 6, characterized in that, The lubrication part of the lubricating pinion is machined as a single piece.

15. The gear lubrication device according to claim 6, characterized in that, The plunger valve core, valve body, grease outlet sleeve, and central tube are made of stainless steel.

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