Disclosure of utility model
The utility model aims to provide a rotary oil feeder and mechanical equipment, so that the shutdown maintenance time of the rotary oil feeder is shortened, and the tightness of the rotary oil feeder is ensured.
In order to achieve the above object, the present utility model provides the following solutions:
The utility model provides a rotary oil feeder which comprises a support shaft, wherein a first oil distribution disc is sleeved outside the support shaft, a first sealing component is arranged between the support shaft and the first oil distribution disc, contact type sealing is arranged between the support shaft and the first oil distribution disc, a second sealing component is arranged on the first oil distribution disc, and the second sealing component is positioned outside the first sealing component.
Preferably, a first passage is arranged on the first oil distribution disc, a first end of the first passage is communicated with the first oil supply assembly, and a second end of the first passage is provided with an oil outlet which faces the supporting shaft and/or is arranged on the first sealing assembly.
Preferably, the rotary oil feeder comprises a second oil distribution disc, the second oil distribution disc is sleeved on the outer side of the first oil distribution disc, a first sealing surface is arranged on the outer side of the first oil distribution disc, a second sealing surface is arranged on the inner side of the second oil distribution disc, a first gap is arranged between the first sealing surface and the second sealing surface, the first sealing surface, the second sealing surface and the first gap form gap seal, and the second sealing assembly comprises the gap seal.
Preferably, the first gap communicates with the second oil supply assembly through a second passage;
And/or a first wear-resistant layer is arranged between the first oil distribution disc and the second oil distribution disc, and a second gap is formed between the first wear-resistant layer and the second oil distribution disc.
Preferably, a second wear-resistant layer is arranged between the first oil distribution disc and the second oil distribution disc, a third gap is formed between the second wear-resistant layer and the second oil distribution disc, an annular runner is formed in the second oil distribution disc, and the annular runner is communicated with the first gap;
The rotary oil feeder further includes a first seal, and an end of the third gap remote from the second oil distribution pan is covered with the first seal.
Preferably, the annular runner is opened along the radial direction of the second oil distribution disc, and the area of the second wear-resistant layer close to one end of the first sealing element is smaller than the area of the second wear-resistant layer far away from one end of the first sealing element.
Preferably, the rotary oil feeder further comprises a plurality of supports uniformly arranged along the circumferential direction of the first oil distribution disc, and the supports are positioned outside the first oil distribution disc;
And/or the second sealing assembly comprises a second sealing element arranged outside the first oil distribution disc;
and/or, rotatory oil feeder includes still including the casing, have in the casing be used for installing first oil distribution dish with the cavity of back shaft, the back shaft with be equipped with the third seal assembly between the casing, the both ends of first oil distribution dish all are equipped with the third seal assembly.
Preferably, a positioning assembly is arranged in the cavity, and can apply a first acting force to the first oil distribution disc, and the first acting force limits the axial movement of the first oil distribution disc.
Preferably, the positioning assembly comprises a positioning block arranged between the adjacent first oil distribution discs;
And/or the positioning assembly comprises a first elastic element arranged between the end part of the first oil distribution disc and the shell, and the deformation direction of the first elastic element is parallel to the axial direction of the first oil distribution disc;
And/or the positioning assembly comprises a positioning ring, a positioning groove matched with the positioning ring is formed in the shell, the positioning ring is sleeved on the outer side of the first oil distribution disc, and a second elastic element is arranged between the positioning ring and the first oil distribution disc.
In addition, the utility model also provides mechanical equipment, which comprises the rotary oil feeder.
Compared with the prior art, the utility model has the following technical effects:
According to the utility model, the first oil distribution disc is sleeved outside the support shaft, the first sealing component is arranged between the first oil distribution disc and the support shaft, and the first sealing component is used for carrying out contact sealing on a gap between the first oil distribution disc and the support shaft, so that contact sealing is formed between the first oil distribution disc and the support shaft; the first oil distribution disc is isolated from the support shaft by the first sealing component, so that the possibility of severe abrasion caused by direct contact when the first oil distribution disc and the support shaft do not synchronously rotate is reduced, meanwhile, the support shaft is prevented from contacting with the oil distribution disc to be abraded when slight jump and eccentricity occur by the first sealing component, the abrasion of the support shaft and the first oil distribution disc is reduced again, and the first sealing component enables external impurities not to easily enter between the first oil distribution disc and the support shaft, so that the abrasion of the first oil distribution disc and the support shaft is further reduced; based on the factors, the utility model realizes the direct contact sealing of the support shaft and the first oil distribution disc, reduces the abrasion of the support shaft and greatly shortens the time consumed by shutdown maintenance of the rotary oil feeder;
In addition, the second sealing component is arranged on the first oil distribution disc and outside the first sealing component, so that the rotary oil feeder can run for a long time, and after the first sealing component is worn greatly, the liquid can be still prevented from leaking out through the effective sealing of the second sealing component, and the rotary oil feeder is guaranteed to have good sealing performance.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1-3, the utility model discloses a rotary oil feeder, which comprises a support shaft 11, wherein a first oil distribution disc 1 is sleeved outside the support shaft 11, a first sealing component is arranged between the support shaft 11 and the first oil distribution disc 1, contact type sealing is arranged between the support shaft 11 and the first oil distribution disc 1, a second sealing component is arranged on the first oil distribution disc 1, and the second sealing component is positioned outside the first sealing component.
According to the utility model, the first oil distribution disc 1 is sleeved outside the support shaft 11, the first sealing component is arranged between the first oil distribution disc 1 and the support shaft 11 and is used for performing contact sealing on a gap between the first oil distribution disc 1 and the support shaft 11, so that contact sealing is formed between the first oil distribution disc 1 and the support shaft 11, the first sealing component is used for isolating the first oil distribution disc 1 from the support shaft 11, the possibility of severe abrasion caused by direct contact when the first oil distribution disc 1 and the support shaft 11 do not synchronously rotate is reduced, meanwhile, the first sealing component is used for enabling the support shaft 11 to be not contacted with the first oil distribution disc 1 to be abraded when slight jump and eccentricity occur, the abrasion of the support shaft 11 and the first oil distribution disc 1 is reduced again, external impurities are not easy to enter between the first oil distribution disc 1 and the support shaft 11, the direct contact sealing of the support shaft 11 and the first oil distribution disc 1 is further reduced, and the abrasion loss caused by the rotation of the support shaft 11 is greatly reduced, and the machine is greatly shortened.
However, it should be noted that, although the first seal assembly has the above-mentioned beneficial effects, because the wear between the first oil distribution disc 1 and the supporting shaft 11 is concentrated on the first seal assembly, so when the first seal assembly is worn and can isolate the wear caused by direct contact between the first oil distribution disc 1 and the supporting shaft 11, but when it is difficult to completely block leakage of hydraulic oil, the tightness of the first oil distribution disc 1 and the supporting shaft 11, i.e. the rotary oil feeder, cannot be ensured, and in order to avoid the technical problem of sealing medium as far as possible, the second seal assembly is arranged on the first oil distribution disc 1 and outside the first seal assembly, so that the rotary oil feeder can still effectively seal through the second seal assembly after the first seal assembly has the above-mentioned conditions, preventing the leakage of the liquid, thereby ensuring that the rotary oil feeder has good tightness.
The first seal assembly has various arrangement forms, and can be specifically one or more seals such as the first seal 3 arranged between the first oil distribution disc 1 and the supporting shaft 11, the seal can be specifically a structure of which shaft sealing rings such as O-shaped rings, lip-shaped sealing rings or gaskets and the like can isolate direct contact between the first oil distribution disc 1 and the supporting shaft 11 and can play a good sealing role, and grooves or protrusions can be arranged on the inner side of the first oil distribution disc 1 or the supporting shaft 11 for installing the first seal assembly. It should be noted, however, that the first seal assembly does not include a case where sealing is achieved by direct contact of the first oil distribution plate 1 with the support shaft 11.
Furthermore, the first oil distribution disc 1 is provided with the first passage 8, the first end of the first passage 8 is communicated with the first oil supply assembly, the second end of the first passage 8 is provided with the oil outlet which faces the supporting shaft 11 and/or is arranged by the first oil supply assembly, the first passage 8 is filled manually by an operator, a medium with lubricating effect such as lubricating oil is added into the first passage 8, the medium such as the lubricating oil flows into the space between the first oil distribution disc 1 and the supporting shaft 11 through the first passage 8 or directly flows into the surface of the first sealing assembly, a lubricating layer can be formed between the first sealing assembly and the first oil distribution disc 1 and between the first sealing assembly and the supporting shaft 11, so that friction between the first sealing assembly and the supporting shaft 11 is reduced, the shutdown maintenance time of the supporting shaft 11 and the first oil distribution disc 1, namely a manufacturer of the rotary oil feeder is further shortened, the working efficiency of mechanical equipment adopting the rotary oil feeder is improved, the rotary oil feeder is almost damaged under the condition of the supporting shaft 11, the problem of quick maintenance is solved, the maintenance time of the rotary oil feeder is shortened, and the maintenance is shortened.
The second seal assembly of the present utility model has a variety of arrangements. For example, the second sealing component may be one or more second sealing elements 4 (the second sealing element 4 may be a sealing ring, such as a hole sealing ring, with a sealing function) disposed outside the first oil distribution disc 1, and the second sealing element 4 needs to be careful and avoid the oil distribution channel on the first oil distribution disc 1, so as to improve the tightness between the first oil distribution disc 1 and the supporting shaft 11 while ensuring that the original function of the first oil distribution disc 1 is normally implemented. It is to be noted that the second seal 4 is not necessarily provided outside the second oil distribution pan 2, and when the second oil distribution pan 2 is not provided, the second seal 4 may be provided outside the first oil distribution pan 1 as a second seal assembly, and when the second oil distribution pan 2 is provided, the second seal assembly includes both the gap seal between the first oil distribution pan 1 and the second oil distribution pan 2, and the second seal 4. And/or, as shown in fig. 1-2, the rotary oil feeder further comprises a second oil distribution disc 2, the second oil distribution disc 2 is sleeved on the outer side of the first oil distribution disc 1, a first sealing surface 6 is arranged on the outer side of the first oil distribution disc 1, a second sealing surface 7 is arranged on the inner side of the second oil distribution disc 2, a first gap is arranged 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 form a gap seal, and the first gap needs to be small enough when meeting the rotary function, so that sealing and decompression are realized in a gap throttling manner, and leaked hydraulic oil medium is controlled within an allowable range, namely, a gap seal (particularly a radial gap seal) is formed between the first oil distribution disc 1 and the second oil distribution disc 2, and the effect of the gap seal is the same as that of the second seal 4, and is not repeated here.
Meanwhile, since the first oil distribution disc 1 and the second oil distribution disc 2 are in clearance fit, which means that the first oil distribution disc 1 and the second oil distribution disc 2 are not in direct connection, when the second sealing assembly comprises the first sealing surface 6, the second sealing surface 7 and the first clearance, after the rotary oil feeder operates for a period of time, the first oil distribution disc 1 or the second oil distribution disc 2 can be independently replaced and repaired according to the damaged part, and the first oil distribution disc 1 and the second oil distribution disc 2 can be simultaneously replaced and repaired, and the split oil distribution disc formed by the first oil distribution disc 1 and the second oil distribution disc 2 can be axially distributed in array according to the number of channels of the rotary oil feeder when being arranged between the supporting shaft 11 and the shell 9.
Further, on the basis of clearance fit of the first oil distribution disc 1 and the second oil distribution disc 2, the first clearance is communicated with the second oil supply assembly through the second passage, the second oil supply assembly or an operator is filled manually, a medium with lubricating function such as lubricating oil is added into the second passage, and flows into the first clearance through the second passage, so that a compact lubricating layer is formed between the first oil distribution disc 1 and the second oil distribution disc 2, and abrasion caused by direct contact of the first oil distribution disc 1 and the second oil distribution disc 2 due to accidental jumping or eccentric arrangement of the first oil distribution disc 1 and/or the second oil distribution disc 2 is reduced.
And/or, there is the second interval between the first oil distribution disc 1 and the second oil distribution disc 2, the second interval is the interval between the first oil distribution disc 1 and the second oil distribution disc 2 after setting up the first abrasion resistant layer substantially between the first oil distribution disc 1 and the second oil distribution disc 2, through setting up the first abrasion resistant layer, make the abrasion that the first oil distribution disc 1 and the second oil distribution disc 2 contact directly because of unexpected factor concentrate on the first abrasion resistant layer, reduce the abrasion that may occur between the first oil distribution disc 1 and the second oil distribution disc 2, and the setting up of the first abrasion resistant layer, further reduce the interval between the first oil distribution disc 1 and the second oil distribution disc 2, make the interval throttling effect that the interval formed between the first oil distribution disc 1 and the second oil distribution disc 2 sealed further strengthen, thus strengthen the sealing between the first oil distribution disc 1 and the second oil distribution disc 2, the first abrasion resistant layer may be a bushing or other structure with effects.
When both the first wear-resistant layer and the second wear-resistant layer are provided between the first oil distribution plate 1 and the second oil distribution plate 2 and the first gap is connected with the second oil supply unit through the second passage, the medium having a lubricating effect can enter the second gap through the second passage, thereby further reducing the wear which may occur between the first oil distribution plate 1 and the second oil distribution plate 2 and the wear between the first wear-resistant layer and the first oil distribution plate 1.
The first and second oil supply assemblies may particularly refer to a storage tank storing a lubricating medium, such as a tank filled with lubricating oil.
In addition, when a second wear-resistant layer is arranged between the first oil distribution disc 1 and the second oil distribution disc 2, a third gap is formed between the second wear-resistant layer and the second oil distribution disc 2, an annular runner 5 is arranged on the second oil distribution disc 2, the annular runner 5 is communicated with the first gap, the rotary oil feeder further comprises a first sealing element 3, and one side, far away from the second oil distribution disc 2, of the third gap is covered with the first sealing element 3. The first sealing element 3 seals one end of the third gap far away from the second oil distribution disc 2, namely one end of the third gap communicated with the outside, so that lubricating oil and other mediums cannot leak from the third gap to the outside, the sealing performance of gap sealing between the first oil distribution disc 1 and the second oil distribution disc 2 is further enhanced, the first sealing element 3 can be a sealing plate, the sealing plate needs to cover the first end of the third gap far away from the second oil distribution disc 2, the first sealing element 3 can be a sealing plate, and the sealing plate can be fixed on the first oil distribution disc 1 or the second oil distribution disc 2 through fixing pieces such as bolts.
As shown in figure 1, the annular runner 5 is arranged along the radial direction of the second oil distribution disc 2, the area of the second wear-resistant layer near one end of the first sealing element 3 is smaller than the area of the second wear-resistant layer far away from one end of the first sealing element 3, when the annular runner 5 is arranged along the circumferential direction of the second oil distribution disc 2, the first sealing surface 6, the second sealing surface 7 and the third gap are at least divided into two sections along the circumferential direction of the annular runner, compared with the annular runner 5 arranged along the axial direction, the distance between the annular runner 5 arranged along the radial direction of the second oil distribution disc 2 and the third gap divided into a plurality of sections is more consistent, the medium with lubricating effect can be dispersed in the third gap more uniformly, the lubricating effect of the medium with lubricating effect is guaranteed, but when the third gap is divided into a plurality of sections by the annular runner 5, the lubricating medium flowing through the third gap pushes the second wear-resistant layer towards the direction far away from the annular runner 5, friction occurs between the second wear-resistant layer and the first oil distribution disc 1, compared with the annular runner 5, the distance between the annular runner 5 and the second wear-resistant layer near one end of the first sealing element 3 is smaller than the third gap, the friction force is applied towards the second wear-resistant layer near the first wear-resistant layer, and the second wear-resistant layer is reduced towards the second wear-resistant layer far away from the annular runner 5, and the second wear-resistant layer is pushed towards the first wear-resistant layer, and the second wear-resistant layer is far away from the annular runner 5, and the friction layer is far away from the annular layer.
The rotary oil feeder further comprises a plurality of supporting pieces which are uniformly arranged along the circumferential direction of the first oil distribution disc 1, the supporting pieces are positioned on the outer side of the first oil distribution disc 1, the plurality of supporting pieces are uniformly arranged on the outer circumference of the first oil distribution disc 1, so that the first oil distribution disc 1 can be stably supported in the rotary oil feeder and has good centering performance, three supporting pieces can be specifically arranged, the stability of the first oil distribution disc 1 is ensured by uniformly distributing the stress of the first oil distribution disc 1 in three directions, the supporting pieces can be specifically supporting pins, and when the second oil distribution disc 2 is arranged outside the first oil distribution disc 1, the supporting pieces are uniformly arranged along the circumferential direction of the outer side of the second oil distribution disc 2.
As shown in fig. 3, the rotary oil feeder of the utility model further comprises a shell 9, wherein a cavity for installing the first oil distribution disc 1 and the supporting shaft 11 is arranged in the shell 9, a third sealing assembly 14 is arranged between the supporting shaft 11 and the shell 9, the third sealing assemblies 14 are arranged at two ends of the first oil distribution disc 1, when the second oil distribution disc 2 is not arranged, the first oil distribution disc 1 forms contact type sealing with the shell 9 through the second sealing assemblies, when the second oil distribution disc 2 is arranged, the second oil distribution disc 2 forms contact type sealing with the shell 9 through the second sealing members 4 positioned at the outer side of the second oil distribution disc 2, the third sealing assemblies 14 arranged at two ends of the first oil distribution disc 1 can play an auxiliary sealing role on a first gap between the first oil distribution disc 1 and the second oil distribution disc 2 to prevent leakage of hydraulic oil from the shell 9 and the supporting shaft 11, the third sealing assemblies 14 can be a combined structure formed by a single sealing ring or a plurality of sealing rings, and the shell 9 can be an integrated shell or an assembled shell.
As shown in fig. 3, the positioning assembly is arranged in the cavity, and can apply a first acting force to the first oil distribution disc 1, and the first acting force limits the axial movement of the first oil distribution disc 1. The positioning assembly comprises positioning blocks 13 arranged between adjacent first oil distribution discs 1, and/or the positioning assembly comprises first elastic elements 12 arranged between the end parts of the second oil distribution discs 2 and the shell 9, the deformation direction of the first elastic elements 12 is parallel to the axial direction of the first oil distribution discs 1, the first elastic elements 12 can be springs, and the positions of the first oil distribution discs 1 and the second oil distribution discs 2 in the cavity can be limited by the arrangement of the first elastic elements 12 and the positioning blocks 13, so that the first oil distribution discs 1 can smoothly exert the oil distribution function.
And/or the positioning assembly comprises a positioning ring, a positioning groove matched with the positioning ring is arranged in the shell 9, the positioning ring is sleeved on the outer side of the first oil distribution disc 1, a second elastic element is arranged between the positioning ring and the first oil distribution disc 1, and the positioning groove is arranged along the circumferential direction of the inner wall of the cavity, so that on one hand, the axial movement of the first oil distribution disc 1 can be limited through the matching of the positioning groove and the positioning ring, and on the other hand, the second elastic element can still be in situ and cannot be displaced when the first oil distribution disc 1 is deformed due to thermal expansion and contraction or other factors.
As shown in fig. 1 to 3, in fig. 3, a first oil distribution disc 1 is sleeved on a supporting shaft 11, a second oil distribution disc 2 is sleeved outside the first oil distribution disc 1, a gap seal is formed between the first oil distribution disc 1 and the second oil distribution disc, a first passage 8 is formed on the first oil distribution disc 1, the inner side of the first passage 8 is communicated with the supporting shaft 11, an annular flow passage 5 communicated with the first passage 8 is formed between the first oil distribution disc 1 and the second oil distribution disc, the annular flow passage 5 is communicated with the outside through a passage 10 and a shell 9, and it is noted that the drawing is only a specific representation form of the above-mentioned conditions, and this does not mean that the second oil distribution disc 2, the annular flow passage 5 and the passage 10 are necessarily arranged, and the specific arrangement mode depends on working conditions.
In addition, the utility model also provides mechanical equipment which comprises the rotary oil feeder, and the mechanical equipment can be particularly mechanical equipment such as a rolling mill, a plunger pump and the like which can be suitable for the rotary oil feeder.
The text mentioned herein and/or referring to text located in front of and/or behind may exist either simultaneously or separately. For example, a and/or B includes the case where a or B alone, and A, B are present simultaneously.
In the present utility model, a plurality of technical solutions are provided, but no contrary technical teaching is provided.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided herein to facilitate understanding of the principles and embodiments of the present utility model and to provide further advantages and practical applications for those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.