Lubricating pinion

Abstract

The utility model relates to a lubricating pinion, and aims to solve the technical problems that lubricating grease is not uniformly distributed after grease is discharged from the conventional lubricating pinion, and the whole tooth surface of a gear to be lubricated cannot be uniformly and comprehensively lubricated. The lubricating pinion comprises a gear body, the gear body comprises a lubricating tooth surface, a center hole located in the axis position and grease outlets extending to the lubricating tooth surface of the gear body from the center hole, a grease distribution membrane with certain flexibility is arranged on the lubricating tooth surface and covers the corresponding grease outlets, a plurality of grease distribution small holes are evenly distributed in the grease distribution membrane, and the grease distribution small holes are communicated with the grease distribution small holes. And after flowing out of the grease outlet, the lubricating grease is distributed by the grease distribution diaphragm and flows out of the grease distribution small holes in the grease distribution diaphragm so as to be uniformly distributed on the lubricating tooth surface.

Description

Technical Field

[0001] The utility model relates to a lubricating pinion gear. Background Art

[0002] The lubricating pinion gear is a core component of a lubricating device used to supply grease to the tooth surface of a rotating large gear to lubricate the rotating gear. Its shape is similar to an ordinary gear. During use, it is installed near the gear to be lubricated (such as the drive gear of a wind turbine) and meshed with the gear to be lubricated. When the gear to be lubricated rotates, it drives the lubricating pinion gear to rotate. Grease can gush out from the tooth surface of the lubricating pinion gear. When the lubricating pinion gear is in meshing contact with the gear to be lubricated, the grease gushing out from the lubricating pinion gear can be adhered to the tooth surface of the gear to be lubricated, so that the gear to be lubricated can be lubricated by the grease during subsequent meshing transmission, and at the same time, it can also play an anti-corrosion and anti-rust role for the gear to be lubricated and other gears meshing and transmitting with it.

[0003] Taking the technical solution disclosed in the patent with the authorized announcement number CN218913690U applied by the applicant of this application as an example, its working principle: The grease pumped by the lubricating pump enters the central tube through the oil pipe joint. The central tube is stationary relative to the mounting plate, while the lubricating pinion gear rotates with the gear to be lubricated. The grease in the central tube flows axially and flows out from its oil holes. Subsequently, when a certain group of main hole grooves of the lubricating pinion gear corresponds to the oil holes, the grease enters the grease channel surrounded by the main hole grooves from the oil holes, and then enters the side rectangular grooves after passing through the branch grease channels surrounded by the branch hole grooves. The rectangular grooves have a certain function of storing grease. Subsequently, a part of the grease is directly adhered and carried away by the tooth surface of the gear to be lubricated, and the other part remains in the rectangular grooves to continuously lubricate the tooth surface of the gear to be lubricated.

[0004] However, in actual use, since the grease is a relatively viscous semi-fluid and in paste form, when it enters the rectangular grooves from the branch hole grooves, it aggregates in a cluster at the outlet of the branch hole grooves. Even when squeezed by the tooth surface of the gear to be lubricated, it can only be distributed in the range near the outlet of the branch hole grooves, resulting in the other parts of the tooth surface not being able to contact the grease. That is, since the grease gushing out from the branch hole grooves only accumulates near the outlet and cannot be evenly distributed in the rectangular grooves, let alone in the area outside the rectangular grooves, the tooth surface of the gear to be lubricated in contact with it cannot fully contact the grease, but only a small area of the tooth surface contacts the grease. Coupled with the extremely poor fluidity of the grease, the tooth surface of the gear to be lubricated cannot be evenly coated with grease, and full-tooth surface lubrication and rust prevention cannot be achieved. Summary of the Utility Model

[0005] The utility model aims to provide a lubricating pinion to solve the technical problem that the grease of the existing lubricating pinion is unevenly distributed after grease is discharged, and the entire tooth surface of the gear to be lubricated cannot be evenly and comprehensively lubricated.

[0006] The technical solution of the lubricating pinion of the present invention is as follows: the lubricating pinion includes a gear body, the gear body includes a lubricating tooth surface, a center hole located at the axis, and a grease outlet extending from the center hole to the lubricating tooth surface of the gear body. A grease distribution diaphragm with a certain flexibility is provided on the lubricating tooth surface, the grease distribution diaphragm covers the corresponding grease outlet, and a plurality of grease distribution holes are evenly distributed on the grease distribution diaphragm. After the grease flows out through the grease outlet, it is distributed by the grease distribution diaphragm and flows out from the various grease distribution holes thereon to be evenly distributed on the lubricating tooth surface.

[0007] The beneficial effects of this solution: When the lubricating pinion of the present application is in use, the grease enters the grease outlet through the center hole and then flows out. It is blocked by the grease matching diaphragm and evenly distributed along the entire coverage area of the grease matching diaphragm, rather than just accumulating near the grease outlet. At the same time, the grease will gradually flow out from the various grease separation holes on the grease matching diaphragm. The state manifested is that a small amount of grease will flow out near each grease separation hole on the entire grease outlet diaphragm, that is, the uniform distribution of the grease is improved. The uniformity of the distribution is affected not only by the number and position of the grease outlets, but also by the number of grease separation holes and the size of the grease matching diaphragm. According to actual needs, the higher the uniformity requirement, the more grease outlets there will be, the more evenly the grease outlets will be distributed, the more grease separation holes there will be, and the larger the coverage area of the grease matching diaphragm. When the gear to be lubricated is meshed with the lubricating pinion of the present application, the tooth surface of the gear to be lubricated contacts the grease-matching diaphragm, and the grease flowing out from various places on the diaphragm can evenly adhere to the tooth surface of the gear to be lubricated. As the extrusion between the gear to be lubricated and the lubricating pinion deepens, the grease can be distributed to cover the entire tooth surface of the gear to be lubricated, achieving lubrication and rust prevention of the entire tooth surface. Moreover, since the grease-matching diaphragm has a certain flexibility, it will not cause any obstruction or jamming to the meshing of the gear to be lubricated and the lubricating pinion. It can be seen that compared with the prior art, the present application can achieve a more uniform distribution of grease on the lubricated tooth surface by simply adding a low-cost and simple-structured grease-matching diaphragm, thereby solving the major problem of uneven lubrication and having great practical value.

[0008] Furthermore, the grease distribution diaphragm is fixedly connected to the lubricated tooth surface on all sides. This allows a narrow rectangular cavity to be formed between the grease distribution diaphragm and the lubricated tooth surface, making it easier to quickly distribute the grease and store a certain amount of grease.

[0009] Further, rectangular grooves are provided on the lubricating tooth surface corresponding to each grease outlet for storing grease, and the grease distribution diaphragm covers the corresponding rectangular grooves. This structure is more convenient for fixing the grease distribution diaphragm, and the grease distribution diaphragm does not need to be set with too large a size, which is convenient for production and processing.

[0010] Further, the four sides of the grease distribution diaphragm are fixed at the edges of the rectangular grooves. Each rectangular groove can form an independent unit for storing and distributing grease.

[0011] Further, a plurality of grease outlets are evenly distributed on the lubricating tooth surface, and a rectangular groove and a grease distribution diaphragm are correspondingly arranged for each grease outlet.

[0012] Further, the grease separation small hole is a cross-shaped slit, and the greater the extrusion force of the grease at the grease outlet on the cross-shaped slit, the larger the opening of the cross-shaped slit. Setting the grease separation small hole as the structure of a cross-shaped slit, using the elastic deformation of the split structure formed by the slit, enables the opening of the grease separation small hole to be adaptively opened according to the pressure of the grease, so as to achieve both the effect of having sufficient closing resistance to the grease for horizontal spreading and automatically opening when reaching a certain pressure and the opening gap size being adjustable to meet the requirements of lubricating grease outlet, with better effects.

[0013] Further, the shape of the grease separation small hole is circular, polygonal, linear, wavy or irregular.

[0014] Further, the grease distribution diaphragm is made of an elastic material. The elastic material can have a greater grease storage capacity, changing the situation of non-continuous grease outlet to a state of continuous lubrication, achieving a better lubrication effect and having a certain effect of saving grease.

[0015] Further, the gear body and the grease distribution diaphragm are integrally injection-molded.

[0016] Further, the gear body is integrally processed or composed of multiple segments combined. Description of the Drawings

[0017] Figure 1 is a perspective view of the sectional structure of a lubricating pinion in the prior art;

[0018] Figure 2 is a perspective structure schematic diagram of an embodiment of the lubricating pinion of the present invention;

[0019] Figure 3 is Figure 2 a transverse sectional schematic diagram of;

[0020] Figure 4 is Figure 3 a partial enlarged view at A in;

[0021] Figure 5Schematic structural diagram of another embodiment of the grease distribution diaphragm;

[0022] In the figure: 1 - central tube, 2 - tubing joint, 3 - mounting plate, 4 - bolt, 5 - annular pressing plate, 6 - gear body, 61 - lubricating tooth surface, 611 - rectangular groove, 62 - grease outlet, 63 - central hole, 7 - grease distribution diaphragm, 71 - grease separating small holes, 72 - deformation flap. Specific embodiments

[0023] In order to make the purpose, technical solutions and advantages of the present 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 used to explain the present utility model and are not used to limit the present utility model, that is, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings herein can be arranged and designed in various different configurations.

[0024] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but only represents the selected embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0025] It should be noted that relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0026] The features and performance of the present utility model will be further described in detail below with reference to the embodiments.

[0027] An embodiment of the lubricating pinion of the present utility model: As Figure 2-4As shown, the lubricating pinion includes a central tube 1, a tubing joint 2, a mounting plate 3, bolts 4, an annular pressing plate 5, a gear body 6, etc. The tubing joint 2 is connected to one end of the central tube 1 and is in communication with the interior of the central tube 1. The gear body has a disc portion and a rack portion. The disc portion has a central hole 63. The central tube 1 is fitted with the central hole 63 of the gear body 6. The central tube 1 is provided with channels corresponding to each grease outlet 62. At a certain moment when the gear body 6 rotates relative to the central tube 1, the inner cavity of the central tube 1 is in communication with the corresponding grease outlet 62 through the channel, so that the grease can be sent out from the grease outlet 62. In this embodiment, the lubricating pinion is formed by splicing multiple group pieces, and the group pieces are cast by a polyurethane material through a mold. The channel corresponding to the grease outlet is a Y-shaped structure composed of a main hole groove and two corresponding branch hole grooves.

[0028] The gear body 6 includes a lubricating tooth surface 61, a central hole 63 located at the axis, and a grease outlet 62 extending from the central hole 63 to the lubricating tooth surface 61 of the gear body 6. A grease distribution diaphragm 7 with a certain flexibility is provided on the lubricating tooth surface 61. The grease distribution diaphragm 7 covers the corresponding grease outlet 62. A plurality of grease distribution small holes 71 are evenly distributed on the grease distribution diaphragm 7. After the grease flows out through the grease outlet 62, it is distributed by the grease distribution diaphragm 7 and flows out from each of the grease distribution small holes 71 thereon to be evenly distributed on the lubricating tooth surface 61.

[0029] In this embodiment, the grease distribution diaphragm 7 is made of rubber or resin material. The periphery of the grease distribution diaphragm 7 is fixedly connected to the lubricating tooth surface 61, and the bonding method can be selected. The way that the periphery of the grease distribution diaphragm 7 is fixedly connected to the lubricating tooth surface 61 can form a rectangular narrow cavity between the grease distribution diaphragm 7 and the lubricating tooth surface 61, which is more convenient for the rapid distribution of grease and also convenient for storing a certain amount of grease. Specifically, rectangular grooves 611 are provided on the lubricating tooth surface 61 corresponding to each grease outlet 62 for storing grease, and the grease distribution diaphragm 7 covers the corresponding rectangular grooves 611. This structure is more convenient for the fixation of the grease distribution diaphragm 7, and the grease distribution diaphragm 7 does not need to be set with too large a size, which is convenient for production and processing. The periphery of the grease distribution diaphragm 7 is fixed at the edge of the rectangular groove 611. Each rectangular groove 611 can form an independent unit for storing and distributing grease. The grease distribution diaphragm 7 is made of an elastic material. The elastic material can have a greater grease storage capacity, change the situation of non-continuous grease outlet into a state of continuous lubrication, achieve a better lubrication effect, and also have a certain effect of saving grease.

[0030] In this embodiment, a plurality of grease outlets 62 are evenly distributed on the lubricating tooth surface 61, and each grease outlet 62 is correspondingly provided with a rectangular groove 611 and a grease distribution diaphragm 7. The shape of the grease distribution small hole 71 is circular. In other embodiments, it can also be polygonal, linear, wavy or irregular.

[0031] In other embodiments, such as Figure 5As shown, the grease-separating hole 71 is a cross-shaped slit. The greater the pressure of the grease at the grease outlet 62 on the cross-shaped slit, the larger the opening of the cross-shaped slit. The cross-shaped slit structure of the grease-separating hole 71 is configured, and the elastic deformation of the petal structure formed by the slit is utilized, so that the opening of the grease-separating hole 71 can adaptively open according to the pressure of the grease. This has the effect of providing sufficient sealing and obstruction for the grease to spread horizontally, and can also automatically open when a certain pressure is reached, and the opening gap size is adjustable to meet the needs of lubrication and grease discharge, achieving better results.

[0032] In other embodiments, the gear body 6 and the grease-matching diaphragm 7 are integrally injection-molded.

[0033] In this embodiment, the gear body 6 is composed of a plurality of segments, but in other embodiments, it can also be integrally processed.

[0034] When the lubricating pinion of the present application is in use, the grease enters the grease outlet 62 through the center hole 63 and then flows out. It is blocked by the grease matching diaphragm 7 and evenly distributed along the entire coverage area of the grease matching diaphragm 7, rather than just accumulating near the grease outlet 62. At the same time, the grease will gradually flow out from the various grease separation holes 71 on the grease matching diaphragm 7. The state manifested is that a small amount of grease will flow out near each grease separation hole 71 on the entire grease outlet diaphragm, that is, the uniform distribution of the grease is improved. The uniformity of the distribution is affected not only by the number and position of the grease outlet 62, but also by the number of the grease separation holes 71 and the size of the grease matching diaphragm 7. According to actual needs, the higher the uniformity requirement, the more the number of grease outlets 62, the more evenly the grease outlets 62 are distributed, the more the number of grease separation holes 71 is increased, and the larger the coverage area of the grease matching diaphragm 7. When the gear to be lubricated meshes with the lubricating pinion of the present application, the tooth surface of the gear to be lubricated contacts the grease-matching diaphragm 7, and the grease flowing out from various places on the diaphragm can evenly adhere to the tooth surface of the gear to be lubricated. As the extrusion between the gear to be lubricated and the lubricating pinion deepens, the grease can be distributed to cover the entire tooth surface of the gear to be lubricated, achieving lubrication and rust prevention of the entire tooth surface. Moreover, since the grease-matching diaphragm 7 has a certain flexibility, it will not cause any obstruction or jamming to the meshing of the gear to be lubricated and the lubricating pinion. It can be seen that compared with the prior art, the present application can achieve a more uniform distribution of grease on the lubricating tooth surface 61 by simply adding a low-cost and simple-structured grease-matching diaphragm 7, thereby solving the major problem of uneven lubrication and having great practical value.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall also be included in the scope of protection of the present invention.

Claims

1. Lubricating pinion, characterized in that, It includes a gear body which has a lubricating tooth surface, a central hole located at the axis, and a grease outlet extending from the central hole to the lubricating tooth surface of the gear body. A grease distribution diaphragm with a certain flexibility is arranged on the lubricating tooth surface. The grease distribution diaphragm covers the corresponding grease outlet. A plurality of grease distribution small holes are evenly distributed on the grease distribution diaphragm. After the lubricating grease flows out through the grease outlet, it is distributed by the grease distribution diaphragm and flows out from each of the grease distribution small holes on it to be evenly distributed on the lubricating tooth surface.

2. The lubricating pinion according to claim 1, characterized in that, The periphery of the grease distribution diaphragm is fixedly connected to the lubricating tooth surface.

3. The lubricated pinion according to claim 1, wherein Rectangular grooves are arranged on the lubricating tooth surface corresponding to each grease outlet for storing lubricating grease, and the grease distribution diaphragm covers the corresponding rectangular grooves.

4. The lubricating pinion according to claim 3, wherein The periphery of the grease distribution diaphragm is fixed at the edge of the rectangular groove.

5. The lubricating pinion according to claim 4, wherein, A plurality of grease outlets are evenly distributed on the lubricating tooth surface, and each grease outlet is correspondingly provided with a rectangular groove and a grease distribution diaphragm.

6. The lubricated pinion according to claim 1, characterized in that, The grease distribution small hole is a cross-shaped slit. The greater the extrusion force of the lubricating grease at the grease outlet on the cross-shaped slit, the larger the opening of the cross-shaped slit.

7. The lubricated pinion according to claim 1, characterized in that, The shape of the grease distribution small hole is circular, polygonal, linear, wavy or irregular.

8. The lubricated pinion according to claim 1, characterized in that, The grease distribution diaphragm is made of an elastic material.

9. The lubricated pinion according to claim 1, characterized in that, The gear body and the grease distribution diaphragm are integrally injection-molded.

10. The lubricated pinion according to claim 1, characterized in that, The gear body is integrally processed or composed of multiple pieces combined together.

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