Rotary oil feeder and mechanical equipment

Abstract

The invention discloses a rotary oil feeder and mechanical equipment, and relates to the technical field of engineering machinery, the rotary oil feeder comprises a supporting shaft, the supporting shaft is sleeved with a first oil distribution disc, a first sealing assembly is arranged between the supporting shaft and the first oil distribution disc, and the supporting shaft and the first oil distribution disc are in contact type sealing; a second sealing assembly is arranged on the first oil distribution disc and located on the outer side of the first sealing assembly. The first oil distribution disc is isolated from the supporting shaft through the first sealing assembly, the first sealing assembly enables the supporting shaft not to make contact with the oil distribution disc to cause abrasion when slight jumping and eccentricity happen to the supporting shaft, and therefore abrasion of the supporting shaft and the first oil distribution disc is reduced again. According to the rotary oil feeder, the second sealing assembly is arranged on the first oil distribution disc and on the outer side of the first sealing assembly, so that after the first sealing assembly is greatly abraded, liquid leakage can still be prevented through the second sealing assembly, and the good sealing performance of the rotary oil feeder is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of engineering machinery, and in particular to a rotary oil feeder and mechanical equipment. Background Art

[0002] In the rotary oiler of the oil distribution plate structure with radial clearance seal in the prior art, the support shaft is the key component of the rotary clearance seal, that is, the clearance between the outer surface of the shaft and the inner diameter surface of the oil distribution plate is matched to realize the sealing function. After the rotary oiler has been running for a certain period of time, the oil distribution plate in the rotary oiler that forms a radial clearance seal with the support shaft will wear out, resulting in excessive leakage of the rotary oiler, which requires maintenance. If only the oil distribution plate is worn, the maintenance can be completed in a short time. However, when the oil distribution plate is worn, it is easy to rub against the support shaft and the bearing due to external pollutants. Due to greater vibration and impact force, the oil distribution plate causes contact wear, and the maintenance of the support shaft requires disassembly of the entire rotary oiler equipment, and the surface of the support shaft is difficult to maintain through simple machining such as turning. The support shaft needs to be recalibrated and debugged after maintenance. Obviously, when the oil distribution plate that forms a radial gap seal with the support shaft is worn, the rotary oiler needs to be shut down for a long time for maintenance. If the support shaft is repaired online, the pressure maintaining performance between the support shaft and the oil distribution plate will be lost, and hydraulic oil and other liquids will leak from the oil distribution plate and the support shaft.

[0003] Therefore, how to shorten the downtime of the rotary lubricator for maintenance while ensuring the sealing of the rotary lubricator has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0004] The object of the present invention is to provide a rotary oil feeder and mechanical equipment, so as to shorten the downtime of the rotary oil feeder for maintenance and ensure the sealing performance of the rotary oil feeder.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a rotary oil feeder, which includes a support shaft, a first oil distribution disk is disposed on the outer sleeve of the support shaft, a first sealing assembly is disposed between the support shaft and the first oil distribution disk, and a contact seal is formed between the support shaft and the first oil distribution disk; a second sealing assembly is disposed on the first oil distribution disk, and the second sealing assembly is located on the outside of the first sealing assembly.

[0007] Preferably, a first passage is provided on the first oil distribution plate, a first end of the first passage is connected to the first oil supply assembly, and a second end of the first passage has an oil outlet arranged toward the support shaft and / or the first sealing assembly.

[0008] Preferably, the rotary oil feeder includes a second oil distribution plate, which is sleeved on the outer side of the first oil distribution plate, the outer side of the first oil distribution plate is provided with a first sealing surface, the inner side of the second oil distribution plate is provided with a second sealing surface, and a first gap is provided between the first sealing surface and the second sealing surface; wherein the first sealing surface, the second sealing surface and the first gap constitute a gap seal, and the second sealing assembly includes the gap seal.

[0009] Preferably, the first gap is connected to the second oil supply assembly through a second passage;

[0010] And / or, a first wear-resistant layer is provided between the first oil distribution plate and the second oil distribution plate, and a second gap exists between the first wear-resistant layer and the second oil distribution plate.

[0011] Preferably, a second wear-resistant layer is provided between the first oil distribution plate and the second oil distribution plate, a third gap is provided between the second wear-resistant layer and the second oil distribution plate, and an annular flow channel is provided on the second oil distribution plate, and the annular flow channel is connected to the first gap;

[0012] The rotary oil feeder further comprises a first sealing member, and an end of the third gap away from the second oil distribution plate is covered with the first sealing member.

[0013] Preferably, the annular flow channel is opened in the radial direction of the second oil distribution plate, and the area of ​​the second wear-resistant layer close to the end of the first seal is smaller than the area of ​​the second wear-resistant layer away from the end of the first seal.

[0014] Preferably, the rotary oil feeder further comprises a plurality of support members uniformly arranged along the circumference of the first oil distribution plate, and the support members are located outside the first oil distribution plate;

[0015] And / or, the second sealing assembly includes a second sealing member disposed outside the first oil distribution plate;

[0016] And / or, the rotary oil feeder also includes a shell, the shell has a cavity for installing the first oil distribution plate and the support shaft, a third sealing assembly is provided between the support shaft and the shell, and the third sealing assembly is provided at both ends of the first oil distribution plate.

[0017] Preferably, a positioning assembly is provided in the cavity, and the positioning assembly can apply a first force to the first oil distribution plate, and the first force limits the axial movement of the first oil distribution plate.

[0018] Preferably, the positioning assembly comprises a positioning block provided between adjacent first oil distribution plates;

[0019] And / or, the positioning assembly comprises a first elastic element disposed between an end of the first oil distribution plate and the housing, and a deformation direction of the first elastic element is parallel to an axial direction of the first oil distribution plate;

[0020] And / or, the positioning assembly includes a positioning ring, a positioning groove matching the positioning ring is provided in the shell, the positioning ring is sleeved on the outer side of the first oil distribution plate, and a second elastic element is provided between the positioning ring and the first oil distribution plate.

[0021] In addition, the present invention also provides a mechanical device, which includes the rotary oil feeder.

[0022] Compared with the prior art, the present invention has achieved the following technical effects:

[0023] In the present invention, a first oil distribution plate is arranged on the outer sleeve of the support shaft, and a first sealing assembly is arranged between the first oil distribution plate and the support shaft, and the first sealing assembly performs contact sealing on the gap between the first oil distribution plate and the support shaft, so that a contact seal is formed between the first oil distribution plate and the support shaft; the first sealing assembly isolates the first oil distribution plate from the support shaft, thereby reducing the possibility of severe wear caused by direct contact when the first oil distribution plate and the support shaft rotate asynchronously, and at the same time, the first sealing assembly prevents the support shaft from contacting with the oil distribution plate and causing wear when slight vibration and eccentricity occur, which further reduces the wear of the support shaft and the first oil distribution plate, and the first sealing assembly makes it difficult for foreign matter to enter between the first oil distribution plate and the support shaft, thereby further reducing the wear of the first oil distribution plate and the support shaft; based on the above factors, the present invention realizes direct contact sealing between the support shaft and the first oil distribution plate, reduces the wear of the support shaft, and greatly shortens the time consumed by the rotary oil feeder for downtime maintenance;

[0024] In addition, the present invention further provides a second sealing component on the first oil distribution plate and on the outside of the first sealing component, so that even after the rotary oil feeder has been running for a long time and the first sealing component has been significantly worn, the effective sealing of the second sealing component can still prevent liquid leakage, thereby ensuring that the rotary oil feeder has good sealing properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a structural schematic diagram of the first oil distribution plate;

[0027] Figure 2is a schematic diagram of a longitudinal section of a first oil distribution plate;

[0028] Figure 3 It is a structural schematic diagram of a rotary oil feeder;

[0029] Among them, 1. the first oil distribution plate; 2. the second oil distribution plate; 3. the first seal; 4. the second seal; 5. the annular flow channel; 6. the first sealing surface; 7. the second sealing surface; 8. the first passage; 9. the shell; 10. the channel; 11. the support shaft; 12. the first elastic element; 13. the positioning block; 14. the third sealing assembly. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 to Figure 3 As shown, the present invention discloses a rotary oil feeder, which includes a support shaft 11, a first oil distribution plate 1 is arranged on the outer sleeve of the support shaft 11, a first sealing assembly is arranged between the support shaft 11 and the first oil distribution plate 1, and a contact seal is formed between the support shaft 11 and the first oil distribution plate 1; a second sealing assembly is arranged on the first oil distribution plate 1, and the second sealing assembly is located on the outside of the first sealing assembly.

[0033] In the present invention, a first oil distribution plate 1 is provided on the outer sleeve of the support shaft 11, and a first sealing assembly is provided between the first oil distribution plate 1 and the support shaft 11. The first sealing assembly performs contact sealing on the gap between the first oil distribution plate 1 and the support shaft 11, so that a contact seal is formed between the first oil distribution plate 1 and the support shaft 11; the first sealing assembly isolates the first oil distribution plate 1 from the support shaft 11, reducing the possibility of severe wear caused by direct contact when the first oil distribution plate 1 and the support shaft 11 rotate asynchronously. At the same time, the first sealing assembly prevents the support shaft 11 from contacting with the first oil distribution plate 1 and causing wear when slight vibration and eccentricity occur, which further reduces the wear of the support shaft 11 and the first oil distribution plate 1, and the first sealing assembly makes it difficult for foreign impurities to enter between the first oil distribution plate 1 and the support shaft 11, further reducing the wear of the first oil distribution plate 1 and the support shaft 11; based on the above factors, the present invention realizes direct contact sealing between the support shaft 11 and the first oil distribution plate 1, reduces the wear of the support shaft 11, and greatly shortens the time spent on shutdown and maintenance of the rotary oil feeder.

[0034] However, it should be noted that although the first sealing assembly can achieve the above-mentioned beneficial effects, the wear between the first oil distribution plate 1 and the support shaft 11 is concentrated on the first sealing assembly. Therefore, after a period of operation, the first sealing assembly is worn. Although it can isolate the wear caused by the direct contact between the first oil distribution plate 1 and the support shaft 11, it is difficult to completely prevent the leakage of hydraulic oil and other liquids, which will lead to the first oil distribution plate 1 and the support shaft 11. The sealing performance of the rotary oil feeder cannot be guaranteed. In order to avoid the technical problem of sealing medium as much as possible, the present invention further provides a second sealing assembly on the first oil distribution plate 1 and on the outside of the first sealing assembly. This allows the rotary oil feeder to still prevent liquid leakage through the effective sealing of the second sealing assembly after the above-mentioned situation occurs in the first sealing assembly, thereby ensuring that the rotary oil feeder has good sealing performance.

[0035] The first sealing assembly has a variety of settings, which can be specifically one or more seals such as the first sealing assembly 3 arranged between the first oil distribution plate 1 and the support shaft 11. The seal can be a shaft sealing ring such as an O-ring, a lip seal ring or a gasket, which can isolate the direct contact between the first oil distribution plate 1 and the support shaft 11 and can play a good sealing role. A groove or a protrusion can be set on the inner side of the first oil distribution plate 1 or the support shaft 11 for installing the first sealing assembly. However, it should be noted that the first sealing assembly does not include the situation where the first oil distribution plate 1 is in direct contact with the support shaft 11 to achieve sealing.

[0036] Furthermore, the present invention provides a first passage 8 on the first oil distribution plate 1, a first end of the first passage 8 is connected to the first oil supply assembly, and a second end of the first passage 8 has an oil outlet arranged toward the support shaft 11 and / or the first sealing assembly; lubricating oil or other media with a lubricating effect is added to the first passage 8 through the first oil supply assembly or manual filling by an operator, and the lubricating oil or other media flows into between the first oil distribution plate 1 and the support shaft 11 through the first passage 8 and the oil outlet, or directly flows into the surface of the first sealing assembly, so that a lubricating layer can be formed between the first sealing assembly and the first oil distribution plate 1, and between the first sealing assembly and the support shaft 11, thereby reducing the friction between the first sealing assembly and the first oil distribution plate 1, and between the first sealing assembly and the support shaft 11, further shortening the downtime maintenance time of the support shaft 11 and the first oil distribution plate 1, i.e., the rotary oil feeder, and improving the working efficiency of the mechanical equipment using the rotary oil feeder; based on the above content of the present invention, when the support shaft 11 is not damaged, the problem that the rotary oil feeder must be returned to the manufacturer for fault maintenance is almost solved, and the rotary oil feeder can be quickly repaired, shortening the maintenance time, and greatly reducing the maintenance cost.

[0037] The second sealing component in the present invention has a variety of settings. For example, the second sealing component can be one or more second seals 4 arranged outside the first oil distribution plate 1 (the second seal 4 can specifically be a sealing ring such as a hole sealing ring and other structures with a sealing function). The second seal 4 should be arranged to avoid the oil distribution channel on the first oil distribution plate 1, so as to improve the sealing between the first oil distribution plate 1 and the support shaft 11 while ensuring the normal realization of the original function of the first oil distribution plate 1. It should be noted that the second seal 4 does not have to be arranged on the outside of the second oil distribution plate 2. When the second oil distribution plate 2 is not provided, the second seal 4 can be provided on the outside of the first oil distribution plate 1 as a second sealing component. When the second oil distribution plate 2 is provided, the second sealing component also includes the gap seal between the first oil distribution plate 1 and the second oil distribution plate 2, and the second seal 4. And / or, such as Figure 1-2 As shown, the rotary oil feeder also includes a second oil distribution plate 2, and the second oil distribution plate 2 is sleeved on the outer side of the first oil distribution plate 1. The outer side of the first oil distribution plate 1 is provided with a first sealing surface 6, and the inner side of the second oil distribution plate 2 is provided with a second sealing surface 7, and a first gap is provided between the first sealing surface 6 and the second sealing surface 7; wherein, the first sealing surface 6, the second sealing surface 7 and the first gap constitute a gap seal. It should be noted that the first gap must be small enough when satisfying the rotation function, so as to achieve sealing and pressure reduction by gap throttling, and control the leakage of hydraulic oil and other media within an allowable range, that is, a gap seal (specifically a radial gap seal) is formed between the first oil distribution plate 1 and the second oil distribution plate 2, and the effect of the gap seal is the same as that of the second seal 4, which will not be repeated here.

[0038] At the same time, due to the clearance fit between the first oil distribution plate 1 and the second oil distribution plate 2, this means that there is no direct connection between the first oil distribution plate 1 and the second oil distribution plate 2. Therefore, when the second sealing assembly includes the first sealing surface 6, the second sealing surface 7 and the first clearance, after the rotary oil feeder has been running for a period of time, the first oil distribution plate 1 or the second oil distribution plate 2 can be replaced or repaired separately according to the damaged part, or the first oil distribution plate 1 and the second oil distribution plate 2 can be replaced or repaired at the same time; and, when the split oil distribution plate composed of the first oil distribution plate 1 and the second oil distribution plate 2 in the present invention is installed between the support shaft 11 and the housing 9, it can be distributed in an axial array according to the number of channels of the rotary oil feeder.

[0039] Furthermore, on the basis of the clearance fit between the first oil distribution plate 1 and the second oil distribution plate 2, the first clearance is connected to the second oil supply assembly through the second passage, and lubricating oil or other medium with lubricating function is added to the second passage through the second oil supply assembly or manual filling by the operator. The medium flows into the first clearance through the second passage, thereby forming a dense lubricating layer between the first oil distribution plate 1 and the second oil distribution plate 2, thereby reducing the wear caused by direct contact between the first oil distribution plate 1 and the second oil distribution plate 2 due to accidental jumping or eccentric setting of the first oil distribution plate 1 and / or the second oil distribution plate 2.

[0040] And / or, a first wear-resistant layer is provided between the first oil distribution plate 1 and the second oil distribution plate 2, and a second gap exists between the first wear-resistant layer and the second oil distribution plate 2, and the second gap is substantially the gap between the first oil distribution plate 1 and the second oil distribution plate 2 after the first wear-resistant layer is provided between the first oil distribution plate 1 and the second oil distribution plate 2; by providing the first wear-resistant layer, the wear caused by direct contact between the first oil distribution plate 1 and the second oil distribution plate 2 due to unexpected factors is concentrated on the first wear-resistant layer, thereby reducing the possible wear between the first oil distribution plate 1 and the second oil distribution plate 2; and the provision of the first wear-resistant layer further reduces the gap between the first oil distribution plate 1 and the second oil distribution plate 2, so that the gap throttling effect of the gap seal formed by the first oil distribution plate 1 and the second oil distribution plate 2 is further enhanced, thereby strengthening the sealing between the first oil distribution plate 1 and the second oil distribution plate 2; the first wear-resistant layer can specifically be a bushing or other structure with wear-resistant effect.

[0041] When a first wear-resistant layer is provided between the first oil distribution plate 1 and the second oil distribution plate 2, and the first gap is connected to the second oil supply assembly through a second passage, a lubricating medium can enter the second gap through the second passage, thereby further reducing possible wear between the first oil distribution plate 1 and the second oil distribution plate 2, and wear between the first wear-resistant layer and the first oil distribution plate 1.

[0042] The first oil supply assembly and the second oil supply assembly may specifically refer to storage tanks storing lubricating media, such as oil tanks filled with lubricating oil.

[0043] Furthermore, when a second wear-resistant layer is provided between the first oil distribution plate 1 and the second oil distribution plate 2, a third gap exists between the second wear-resistant layer and the second oil distribution plate 2, an annular flow channel 5 is provided on the second oil distribution plate 2, and the annular flow channel 5 is connected to the first gap; the rotary oil feeder also includes a first seal 3, and the side of the third gap away from the second oil distribution plate 2 is covered with the first seal 3. The first seal 3 blocks the end of the third gap away from the second oil distribution plate 2, that is, the end of the third gap connected to the outside world, so that lubricating oil and other media cannot leak from the third gap to the outside world, further enhancing the sealing of the gap seal between the first oil distribution plate 1 and the second oil distribution plate 2; the first seal 3 can be specifically a sealing plate, and the sealing plate needs to completely cover the first end of the third gap away from the second oil distribution plate 2; the first seal 3 can be specifically a sealing plate, and the sealing plate can be fixed to the first oil distribution plate 1 or the second oil distribution plate 2 by bolts and other fixings.

[0044] like Figure 1 As shown, in the present invention, the annular flow channel 5 is opened along the radial direction of the second oil distribution plate 2, and the area of ​​the second wear-resistant layer close to the first seal 3 is smaller than the area of ​​the second wear-resistant layer away from the first seal 3. When the annular flow channel 5 is opened along the circumferential direction of the second oil distribution plate 2, the first sealing surface 6, the second sealing surface 7 and the third gap will be divided into at least two sections along the circumferential direction; compared with the annular flow channel 5 opened along the axial direction, the distance between the annular flow channel 5 opened along the radial direction of the second oil distribution plate 2 and the third gap divided into multiple sections is more consistent, which makes the lubricating medium more evenly dispersed in the third gap, ensuring the lubricating effect of the lubricating medium, but when the third gap is divided into multiple sections by the annular flow channel 5, the flow The lubricating medium passing through the third gap will push the second wear-resistant layer to move in the direction away from the annular flow channel 5, causing friction between the second wear-resistant layer and the first oil distribution plate 1, and the area of ​​the second wear-resistant layer close to the first seal 3 is smaller than the area of ​​the second wear-resistant layer away from the first seal 3. This means that a boss is provided at the end of the second wear-resistant layer away from the annular flow channel 5. In this way, when the lubricating medium flows to the boss, the lubricating medium will apply a force on the second wear-resistant layer to move in the direction close to the annular flow channel 5. In this way, the force will offset part of the force pushing the second wear-resistant layer to move in the direction away from the annular flow channel 5, thereby reducing the friction between the second wear-resistant layer and the first oil distribution plate 1, and reducing the friction between the second wear-resistant layer and the first oil distribution plate 1.

[0045] The rotary oil feeder also includes a plurality of support members uniformly arranged along the circumference of the first oil distribution plate 1, and the support members are located on the outside of the first oil distribution plate 1; by uniformly arranging a plurality of support members on the outer circumference of the first oil distribution plate 1, the first oil distribution plate 1 can be stably supported in the rotary oil feeder and has good centering; specifically, three support members can be arranged, and by uniformly distributing the force of the first oil distribution plate 1 in three directions, the stability of the first oil distribution plate 1 is ensured; the support member can specifically be a support pin; when a second oil distribution plate 2 is provided outside the first oil distribution plate 1, the support members are uniformly arranged along the circumference of the outer side of the second oil distribution plate 2.

[0046] like Figure 3 As shown, the rotary oil feeder in the present invention also includes a shell 9, which has a cavity for installing the first oil distribution plate 1 and the support shaft 11, and a third sealing assembly 14 is provided between the support shaft 11 and the shell 9. The third sealing assembly 14 is provided at both ends of the first oil distribution plate 1. When the second oil distribution plate 2 is not provided, the first oil distribution plate 1 forms a contact seal with the shell 9 through the second sealing assembly. When the second oil distribution plate 2 is provided, the second oil distribution plate 2 forms a contact seal with the shell 9 through the second sealing member 4 located on the outside of the second oil distribution plate 2; the third sealing assembly 14 provided at both ends of the first oil distribution plate 1 can play an auxiliary sealing role in the first gap between the first oil distribution plate 1 and the second oil distribution plate 2, and prevent the hydraulic oil and other media from leaking from between the shell 9 and the support shaft 11; the third sealing assembly 14 can be a single sealing ring or a combination structure formed by multiple sealing rings; the shell 9 can be an integrally formed shell or an assembled shell.

[0047] like Figure 3 As shown, the present invention is provided with a positioning assembly in the cavity, and the positioning assembly can apply a first force to the first oil distribution plate 1, and the first force limits the axial movement of the first oil distribution plate 1. And the positioning assembly has multiple settings: the positioning assembly includes a positioning block 13 arranged between adjacent first oil distribution plates 1; and / or, the positioning assembly includes a first elastic element 12 arranged between the end of the second oil distribution plate 2 and the housing 9, the deformation direction of the first elastic element 12 is parallel to the axial direction of the first oil distribution plate 1, and the first elastic element 12 can be a spring; the setting of the first elastic element 12 and the positioning block 13 can limit the positions of the first oil distribution plate 1 and the second oil distribution plate 2 in the cavity, and ensure that the first oil distribution plate 1 smoothly performs its oil distribution function.

[0048] And / or, the positioning assembly includes a positioning ring, a positioning groove matching the positioning ring is provided in the shell 9, the positioning ring is sleeved on the outer side of the first oil distribution plate 1, and a second elastic element is provided between the positioning ring and the first oil distribution plate 1; the positioning groove is arranged along the circumference of the inner wall of the cavity, on the one hand, the axial movement of the first oil distribution plate 1 can be limited by the cooperation between the positioning groove and the positioning ring, and on the other hand, the second elastic element enables the first oil distribution plate 1 to remain in place without displacement when it is deformed due to thermal expansion and contraction or other factors.

[0049] like Figure 1 to Figure 3 As shown, Figure 3 A first oil distribution plate 1 is provided on the outer sleeve of the middle support shaft 11, and the second oil distribution plate 2 is provided on the outside of the first oil distribution plate 1, and a gap seal is formed between the first oil distribution plate 1 and the second oil distribution plate. A first passage 8 is opened on the first oil distribution plate 1, and the inner side of the first passage 8 is connected with the support shaft 11. An annular flow channel 5 connected with the first passage 8 is provided between the first oil distribution plate 1 and the second oil distribution plate, and the annular flow channel 5 is connected with the outside through the channel 10 and the shell 9. It should be noted that the accompanying drawings are only specific presentation forms of the above situation, which does not mean that the second oil distribution plate 2, the annular flow channel 5 and the channel 10 are structures that must be set up. The specific setting method depends on the working conditions.

[0050] In addition, the present invention also provides a mechanical device, which includes the above-mentioned rotary oil feeder; the mechanical device can specifically be a rolling mill, a plunger pump, or other mechanical device that can be applied to the above-mentioned rotary oil feeder.

[0051] The "and / or" mentioned in this article refers to the text content located before "and / or", and the text content located after "and / or" can exist at the same time or separately. For example, A and / or B includes only A or B, and A and B exist at the same time.

[0052] The present invention provides multiple technical solutions, but there is no situation where contrary technical inspiration is given.

[0053] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A rotary oil feeder, characterized in that: The rotary oil feeder includes a support shaft, a first oil distribution disk is disposed on the outer sleeve of the support shaft, a first sealing assembly is disposed between the support shaft and the first oil distribution disk, and a contact seal is formed between the support shaft and the first oil distribution disk; a second sealing assembly is disposed on the first oil distribution disk, and the second sealing assembly is located on the outside of the first sealing assembly.

2. The rotary oil feeder according to claim 1, characterized in that: The first oil distribution plate is provided with a first passage, a first end of the first passage is connected to the first oil supply assembly, and a second end of the first passage has an oil outlet arranged toward the support shaft and / or the first sealing assembly.

3. The rotary oil feeder according to claim 1, characterized in that: The rotary oil feeder includes a second oil distribution plate, which is sleeved on the outer side of the first oil distribution plate, the outer side of the first oil distribution plate is provided with a first sealing surface, the inner side of the second oil distribution plate is provided with a second sealing surface, and a first gap is provided between the first sealing surface and the second sealing surface; wherein the first sealing surface, the second sealing surface and the first gap constitute a gap seal, and the second sealing assembly includes the gap seal.

4. The rotary oil feeder according to claim 3, characterized in that: The first gap is connected to the second oil supply assembly through a second passage; And / or, a first wear-resistant layer is provided between the first oil distribution plate and the second oil distribution plate, and a second gap exists between the first wear-resistant layer and the second oil distribution plate.

5. The rotary oil feeder according to claim 1, characterized in that: The second sealing assembly includes a second sealing member disposed outside the first oil distribution plate; And / or, the rotary oil feeder also includes a shell, the shell has a cavity for installing the first oil distribution plate and the support shaft, a third sealing assembly is provided between the support shaft and the shell, and the third sealing assembly is provided at both ends of the first oil distribution plate.

6. The rotary oil feeder according to claim 5, characterized in that: A positioning assembly is disposed in the cavity, and the positioning assembly can apply a first force to the first oil distribution plate, and the first force limits the axial movement of the first oil distribution plate.

7. A mechanical device, characterized in that: The mechanical device comprises the rotary oil feeder according to any one of claims 1-6.

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