A silver bearing

Abstract

The present invention discloses a silver bearing, which relates to the technical field of bearings. The technical scheme thereof includes a silver front bearing and a silver rear bearing that are matched and connected to each other, a shaft cavity that matches the rotating shaft is formed between the front bearing and the rear bearing, front lubricating oil cavities are arranged at both ends of the front bearing, and rear lubricating oil cavities that match and connect to the corresponding front lubricating oil cavities are arranged at both ends of the rear bearing, an oil storage chamber is arranged between the front lubricating oil chamber and the rear lubricating oil chamber, the oil storage chamber is filled with lubricating oil liquid and is used to introduce lubricating oil into the shaft cavity; an oil injection hole that is connected to the corresponding oil storage chamber is arranged at one end of the front bearing and / or the rear bearing, the oil injection hole is used to introduce lubricating oil liquid into the oil storage chamber, and the volume of the oil storage chamber increases with the increase of lubricating oil liquid. The present invention achieves the effect of timely and uniform lubrication by cooperating with the lubricating oil liquid in the oil storage chamber with a volume change, and avoids mechanical failures caused by bite phenomenon.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing bushes, and more particularly to a silver bearing bush. Background Art

[0002] The bearing shell is the part where the sliding bearing contacts the shaft neck. It is a semi-cylindrical shell in the shape of a tile and is very smooth. It is generally made of wear-resistant materials such as bronze and anti-friction alloy. In special cases, it can be made of wood, engineering plastics or rubber.

[0003] A Chinese patent with announcement number CN215487217U discloses a bearing that is easy to splice and install. The bearing that is easy to splice and install includes an upper bearing body, mounting plates are provided on both sides of the upper bearing body, sealing pads and tenons are provided at the bottom of the mounting plates, a fixing bolt is provided on the top of the mounting plate, a lower bearing body is provided at the bottom of the upper bearing body, limiting rings are provided on the front and back of the bearing, screws are provided on the front of the limiting rings, an oil filling pipe is provided on the top of the upper bearing body, a pipe cover is provided on the top of the oil filling pipe, bottom plates are provided on both sides of the lower bearing body, mounting holes and tenons are provided on the top of the bottom plates, a reinforcing plate is provided inside the upper bearing body, a paint coating is provided on the outer wall of the reinforcing plate, a buffer pad is provided on the inner wall of the reinforcing plate, and a rubber friction pad is provided on the inner wall of the buffer pad.

[0004] However, the bearing shell that is easy to splice and install uses the oil filling pipe on the top of the upper shell body to add lubricating oil. It is difficult to achieve effective lubrication if the oil filling pipe is directly inserted into the upper shell body, and biting will occur when the lubricating oil is not evenly coated, thereby causing mechanical failure, which needs to be improved. Summary of the invention

[0005] In view of this, the purpose of this application is to provide a silver bearing to achieve the purpose of timely and uniform lubrication. The specific scheme is as follows:

[0006] A silver bearing, comprising a silver front bearing and a silver rear bearing which are matched and connected to each other, an axial cavity matching a rotating shaft is formed between the front bearing and the rear bearing, a wear-resistant layer is arranged in the axial cavity, front lubricating oil cavities are arranged at both ends of the front bearing, and rear lubricating oil cavities matched and connected to the corresponding front lubricating oil cavities are arranged at both ends of the rear bearing, an oil storage chamber is arranged between the front lubricating oil chamber and the rear lubricating oil chamber, the oil storage chamber is filled with lubricating oil liquid and is used to introduce lubricating oil into the axial cavity; one end of the front bearing and / or the rear bearing is provided with an oil filling hole connected to the corresponding oil storage chamber, the oil filling hole is used to introduce lubricating oil liquid into the oil storage chamber, and the volume of the oil storage chamber increases with the increase of lubricating oil liquid.

[0007] Preferably: the oil storage chamber includes an inner ring body and an outer ring body matched with the inner ring body, the lubricating oil is filled between the inner ring body and the outer ring body, and inner ring walls are provided on both sides of the inner ring body, and outer ring walls abutting against the corresponding inner ring walls are provided on both sides of the outer ring body, and the inner ring wall located on the inner side is provided with a plurality of oil holes distributed with equal arcs.

[0008] Preferably: the inner ring body forms an inner oil chamber facing outward, and the outer ring body forms an outer oil chamber facing inward, the inner oil chamber and the outer oil chamber are connected to each other and are used to store lubricating oil; a plurality of inner and outer abutment springs with equal arc distribution are arranged between the outer ring body and the inner ring body, and when the length of the inner and outer abutment springs is at the minimum value, the oil hole remains closed.

[0009] Preferably: the outer ring wall is inserted into the corresponding inner ring wall, the inner diameter of the inner ring wall located on the inner side is larger than the diameter of the shaft cavity, and an outer spacer ring is provided on the outer side of the matching front lubricating oil cavity and the rear lubricating oil cavity, and a spacer ring cavity is provided inside the outer spacer ring, and the diameter of the spacer ring cavity matches the diameter of the shaft cavity.

[0010] Preferably: a sealing plug-in portion is formed between the outer spacer ring and the front bearing and the rear bearing, and a pin ring is provided on the inner side of the outer spacer ring, which abuts against the inner walls of the corresponding front lubricating oil chamber and the rear lubricating oil chamber; an oil control part is provided on the outer side of the outer ring body, and one end of the oil control part abuts against the outer ring body, and the other end abuts against the inner side of the outer spacer ring.

[0011] Preferably: the oil control part includes an abutment ring abutting the inner side of the outer spacer ring and a plurality of limit springs connected to the inner side of the abutment ring and distributed with equal arcs between the abutment ring and the outer ring body, and the elastic coefficient of the limit spring is greater than the elastic coefficient of the inner and outer abutment springs.

[0012] Preferably: a plurality of spiral grooves with equal arc distribution are arranged on the inner side of the inner ring wall located on the outer side, a plurality of limiting plugs respectively inserted into the corresponding spiral grooves are arranged on the corresponding outer ring wall, and a filter is arranged on the oil hole.

[0013] Preferably, the inner ring body is provided with a plurality of limiting cylinders respectively sleeved on corresponding ends of the corresponding inner and outer abutment springs.

[0014] Preferably, the front bearing and the rear bearing are both provided with a plurality of connecting oil passages, and both ends of the connecting oil passages are respectively communicated with the corresponding limiting cylinders in the corresponding oil storage chambers.

[0015] Preferably: the front bearing is provided with a front groove matching the corresponding oil filling hole and / or the rear bearing is provided with a rear groove matching the corresponding oil filling hole, both ends of the front bearing are provided with front connecting parts, and both ends of the rear bearing are provided with rear connecting parts matching the corresponding front connecting parts, and connecting bolts are provided between the front connecting parts and the rear connecting parts; both sides of the rear bearing are provided with staggered plug-in columns and plug-in grooves, and both sides of the front bearing match the rear bearing and are matched and connected with the plug-in columns and plug-in grooves.

[0016] It can be seen from the above scheme that the present application provides a silver bearing bushing, which has the following beneficial effects:

[0017] 1. Introduce lubricating oil into the oil storage chamber through the oil filling hole, and then introduce lubricating oil into the shaft cavity through the oil storage chamber to achieve timely and effective lubrication effect, thereby evenly applying lubricating oil and effectively avoiding mechanical failures such as biting;

[0018] 2. The lubricating oil is stored in the oil storage chambers at both ends, so that the lubricating oil enters the shaft cavity through the oil hole and is evenly distributed on the wear-resistant layer in the shaft cavity, so as to achieve the purpose of timely and uniform lubrication;

[0019] 3. When in use, the inner ring body and the outer ring body cooperate to achieve the effect of internal sealing, so that when the lubricating oil is injected into the oil storage chamber through the oil filling hole, the air in the oil storage chamber is first discharged, so as to prevent the air from expanding due to the temperature increase and affecting the orderly flow of the lubricating oil; and when the air in the oil storage chamber is completely exhausted, the rotating shaft is connected through the connecting shaft cavity, so that the rotating shaft and the silver bearing form a tight connection structure, and then the lubricating oil is further injected through the oil filling hole, so that the oil hole on the inner ring wall inside the inner ring body is opened while expanding the volume of the oil storage chamber, so as to achieve the effect of evenly coating the lubricating oil in the shaft cavity through the oil hole;

[0020] 4. The increase in the volume of the oil storage chamber leads to the stretching of the inner and outer abutment springs and the compression of the limit spring, which will enable the limit spring to push the outer ring body to form a movement trend toward the inner ring body, thereby achieving the effect of pushing the lubricating oil in the oil storage chamber to be evenly coated in the shaft cavity through the oil hole; and the inner and outer abutment springs play a role in maintaining the stable operation of the outer ring body, balancing the elastic restoring force of the limit spring, thereby improving the flow effect of the lubricating oil;

[0021] 5. The spiral grooves and limit pins that cooperate with each other between the inner ring and the outer ring can effectively clean the filter when the inner ring and the outer ring move relative to each other, thereby avoiding the problem of difficulty in evenly applying the lubricating oil due to filter blockage;

[0022] 6. The purpose of stable pairing is achieved by the plug-in column and the plug-in groove that are matched and connected between the front bearing and the rear bearing, and the matching front connecting part and the rear connecting part are connected by connecting bolts, which significantly reduces the difficulty of installing the silver bearing and significantly improves the fixing stability of the silver bearing, so that the lubricating oil can be coated in the shaft cavity in a timely and effective manner;

[0023] 7. Through the oil filling holes on the front and rear bearings and the matching connecting oil channels, when the lubricating oil is injected into the oil storage chamber at the upper end, the lubricating oil will be injected from the upper end into the oil storage chamber at the lower end along one of the connecting oil channels, and the air in the oil storage chamber at the lower end will move upward through the other connecting oil channel and be discharged through the corresponding oil filling holes. At this time, the height of the oil filling hole for injecting the lubricating oil is controlled to be lower than the height of the other oil filling hole, until the lubricating oil fills the upper and lower oil storage chambers, and then the lubricating oil is continuously injected into the oil storage chamber through at least one of the oil filling holes, thereby significantly improving the injection efficiency of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of this embodiment;

[0025] Figure 2 It is a cross-sectional structural schematic diagram of this embodiment;

[0026] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of part A;

[0027] Figure 4 It is a schematic diagram of the explosion structure of this embodiment.

[0028] Explanation of the reference numerals in the accompanying drawings: 1. front bearing; 11. front groove; 12. front connecting part; 13. front lubricating oil chamber; 2. rear bearing; 21. rear groove; 22. rear connecting part; 23. rear lubricating oil chamber; 24. plug-in column; 25. plug-in groove; 3. shaft chamber; 4. oil filling hole; 41. connecting oil channel; 5. outer spacer ring; 51. spacer ring chamber; 52. pin ring; 53. sealing plug-in part; 6. oil storage chamber; 61. inner ring body; 611. inner ring wall; 612. inner oil chamber; 613. oil hole; 62. outer ring body; 621. outer ring wall; 622. outer oil chamber; 63. inner and outer abutment springs; 64. limiting cylinder; 7. oil control part; 71. abutment ring; 72. limiting spring; 8. wear-resistant layer; 9. connecting bolt. DETAILED DESCRIPTION

[0029] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0030] like Figure 1 As shown, a silver bearing includes a silver front bearing 1 and a silver rear bearing 2 that are matched and connected to each other. It should be noted that the silver front bearing 1 and the silver rear bearing 2 are both forged from a silver core and processed by a 42CrMo shell cladding process.

[0031] Among them, an axis cavity 3 matching the rotating shaft is formed between the front bearing 1 and the rear bearing 2, and a wear-resistant layer 8 is arranged in the axis cavity 3. In order to solve the problem in the prior art that it is difficult to timely and effectively evenly apply lubricating oil liquid in the axis cavity 3, the front bearing 1 of the present application is provided with a front lubricating oil cavity 13 at both ends, and a rear lubricating oil cavity 23 matching and connected with the corresponding front lubricating oil cavity 13 is provided at both ends of the rear bearing 2. Therefore, the front lubricating oil cavity 13 located at the two ends of the front bearing 1 and the rear lubricating oil cavity 23 located at the two ends of the rear bearing 2 cooperate with each other to form two chambers located at the two ends of the silver bearing for storing lubricating oil liquid, and then the lubricating oil liquid in the axis cavity 3 is replenished in a timely and effective manner through the above two chambers.

[0032] like Figure 1 , Figure 2 As shown, an oil storage chamber 6 is provided in each of the two chambers for storing lubricating oil. The oil storage chamber 6 is filled with lubricating oil and is used to introduce lubricating oil into the shaft cavity 3. Among them, an oil filling hole 4 connected to the corresponding oil storage chamber 6 is provided at one end of the front bearing 1 and / or the rear bearing 2. When the oil filling hole 4 is provided at one end of the front bearing 1 or the rear bearing 2, the lubricating oil can be injected into the oil storage chamber 6 through the corresponding oil filling hole 4; and when the oil filling holes 4 are provided at one end of the front bearing 1 and the rear bearing 2, both the two oil filling holes 4 can be used to inject lubricating oil into the oil storage chamber 6, or when one of the oil filling holes 4 is used to inject lubricating oil into the oil storage chamber 6, the other oil filling hole 4 is used to discharge the air in the oil storage chamber 6.

[0033] It should be mentioned that the volume of the oil storage chamber 6 increases with the increase of lubricating oil. At this time, in view of the increase in the volume of the oil storage chamber 6, the storage content of the lubricating oil will be significantly increased, and the lubricating oil in the oil storage chamber 6 will be avoided from being emptied and causing mechanical failure due to insufficient lubricating oil.

[0034] It should be noted that the oil storage chamber 6 includes an inner ring body 61 and an outer ring body 62 matched with the inner ring body 61. The lubricating oil is filled between the inner ring body 61 and the outer ring body 62, and the inner ring wall 61 is provided on both sides of the inner ring body 61. Correspondingly, the outer ring wall 621 abutting against the corresponding inner ring wall 611 is provided on both sides of the outer ring body 62, so that the lubricating oil is effectively stored between the two symmetrically distributed outer ring walls 621 and the two symmetrically distributed inner ring walls 611. Among them, a plurality of oil holes 613 with equal arc distribution are provided on the inner ring wall 611 located on the inner side. The lubricating oil enters the shaft cavity 3 through the oil hole 613, and when the corresponding outer ring wall 621 overlaps with the inner ring wall 611, the outer ring wall 621 will cover the oil hole 613 to achieve the purpose of closing the oil hole 613. At the same time, when the outer annular wall 621 moves and passes through the oil hole 613 , it has the effect of effectively cleaning the oil hole 613 , thereby preventing the oil hole 613 from being blocked.

[0035] like Figure 3 , Figure 4 As shown, an inner oil cavity 612 facing outward is formed on the inner ring body 61, and an outer oil cavity 622 facing inward is formed on the outer ring body 62. Therefore, the inner ring body 61 and the outer ring body 62 are connected to each other through the corresponding inner oil cavity 612 and the outer oil cavity 622, thereby achieving the effect of storing lubricating oil. It should be mentioned that a plurality of inner and outer abutment springs 63 with equal arc distribution are arranged between the outer ring body 62 and the inner ring body 61, and when the length of the inner and outer abutment springs 63 is at the minimum value, the oil hole 613 remains closed. At the same time, as the inner and outer abutment springs 63 are stretched, the oil hole 613 will gradually open from a closed state to a fully open state. In the present application, in the process of stretching the inner and outer abutment springs 63 to the longest length, the oil hole 613 is fully opened before the longest length is reached, thereby increasing the maximum volume in the oil storage chamber 6.

[0036] In order to achieve effective cooperation between the inner ring body 61 and the outer ring body 62 and to achieve relative stable movement, the outer ring wall 621 is inserted into the corresponding inner ring wall 611. The length of the outer ring wall 621 extending inward is less than the length of the inner ring wall 611 extending outward, and the oil hole 613 is located at the inner end of the inner ring wall 611, so that when the outer ring body 62 performs an inward and outward linear movement relative to the inner ring body 61, the outer ring wall 621 has a moving path length from the innermost side inserted in the inner ring wall 611 to the outermost side, so as to achieve the purpose of controlling the closing or opening of the oil hole 613 and significantly expand the maximum volume value of the oil storage chamber 6.

[0037] At the same time, the inner diameter of the inner ring wall 611 located on the inner side is larger than the diameter of the shaft cavity 3, and the outer sides of the matching front lubricating oil cavity 13 and rear lubricating oil cavity 23 are provided with an outer spacer ring 5. A spacer ring cavity 51 is provided inside the outer spacer ring 5, and the diameter of the spacer ring cavity 51 matches the diameter of the shaft cavity 3. Therefore, when the rotating shaft is inserted into the shaft cavity 3 of the silver bearing, it will be matched with the spacer ring cavity 51 at the same time, so that a space for lubricating and infiltrating the shaft cavity 3 is formed between the spacer ring cavity 51 and the shaft cavity 3, and then the purpose of timely and effectively coating the lubricating oil liquid in the shaft cavity 3 is achieved.

[0038] like Figure 3 , Figure 4 As shown, a sealing insert 53 is formed between the outer spacer ring 5 and the front bearing 1 and the rear bearing 2, and a pin ring 52 is provided on the inner side of the outer spacer ring 5 to abut against the inner side walls of the corresponding front lubricating oil chamber 13 and the rear lubricating oil chamber 23. The pin ring 52 not only improves the sealing performance, but also cooperates with the sealing insert 53 to improve the matching stability between the outer spacer ring 5 and the silver bearing. At the same time, an oil control member 7 is provided on the outer side of the outer ring body 62, and one end of the oil control member 7 abuts against the outer ring body 62, and the other end abuts against the inner side of the outer spacer ring 5. So that the oil control member 7 applies a force to the outer spacer ring 5, and improves the matching tightness of the sealing insert 53 formed between the outer spacer ring 5 and the front bearing 1 and the rear bearing 2. The oil control member 7 includes an abutting ring 71 abutting against the inner side of the outer spacer ring 5 and a plurality of limit springs 72 connected to the inner side of the abutting ring 71 and distributed in equal arcs between the abutting ring 71 and the outer ring body 62. The limit springs 72 and the inner and outer abutting springs 63 are arranged in an interlaced manner, thereby improving the matching stability of the limit springs 72 and the inner and outer abutting springs 63, and the elastic coefficient of the limit spring 72 is greater than the elastic coefficient of the inner and outer abutting springs 63. The limit springs 72 and the inner and outer abutting springs 63 are both in a compressed state in the silver bearing bush, so that the corresponding force is applied to both ends through the elastic restoring force generated by the compressed state, so as to prevent air from entering the oil storage chamber 6 through the oil hole 613 and affecting the timely and effective distribution of the lubricating oil in the shaft cavity 3. At the same time, when the outer ring body 62 moves linearly inward and outward relative to the inner ring body 61, the limit spring 72 plays an effective role in preventing the outer ring body 62 from detaching from the inner ring body 61.

[0039] In order to further improve the cleaning effect of the oil hole 613 and avoid the position deviation and wear caused by the relative movement of the outer ring body 62 and the inner ring body 61, a plurality of spiral grooves with equal arc distribution are arranged on the inner side of the inner ring wall 611 located on the outside, and a plurality of limit pins are arranged on the outer side of the outer ring wall 621 to be inserted into the corresponding spiral grooves, so that when the outer ring body 62 moves relative to the inner ring body 61, it will show the effect of spiral movement. At the same time, a filter screen is arranged in the oil hole 613 to prevent impurities in the lubricating oil from entering the shaft cavity 3 through the filter screen, so as to achieve the effect of efficient cleaning and avoiding blockage by cooperating with the relative spiral movement between the inner ring body 61 and the outer ring body 62.

[0040] like Figure 4 As shown, a plurality of limiting cylinders 64 are provided on the inner ring body 61, which are respectively sleeved on the corresponding ends of the corresponding inner and outer abutting springs 63. And a plurality of connecting oil passages 41 are provided on both the front bearing 1 and the rear bearing 2. The two ends of the connecting oil passage 41 are respectively connected with the corresponding limiting cylinders 64 in the corresponding oil storage chamber 6. Therefore, the limiting cylinder 64, while serving to connect the corresponding ends of the inner and outer abutting springs 63, is used to allow the passage of lubricating oil and the discharge of air, so that the oil storage chambers 6 at both ends are efficiently filled with lubricating oil through the oil filling holes 4, and are used to connect the rotating shaft and effectively discharge the air between the outside of the oil storage chamber 6 and the rotating shaft.

[0041] In order to significantly improve the fixing stability of the silver bearing, so that the lubricating oil can be coated in the shaft cavity 3 in a timely and effective manner, a front groove 11 matching the corresponding oil filling hole 4 is provided on the front bearing 1 and / or a rear groove 21 matching the corresponding oil filling hole 4 is provided on the rear bearing 2. Front connecting parts 12 are provided at both ends of the front bearing 1, and rear connecting parts 22 matching the corresponding front connecting parts 12 are provided at both ends of the rear bearing 2. Among them, a connecting bolt 9 is provided between the front connecting part 12 and the rear connecting part 22, and staggered plug-in columns 24 and plug-in grooves 25 are provided on both sides of the rear bearing 2, and both sides of the front bearing 1 are matched with the rear bearing 2 and matched and connected with the plug-in columns 24 and the plug-in grooves 25. Therefore, the purpose of stable pairing is achieved by the plug-in columns 24 and the plug-in grooves 25 that are matched and connected between the front bearing 1 and the rear bearing 2, and the matching front connecting part 12 and the rear connecting part 22 are connected by the connecting bolt 9, so as to achieve the effect of significantly reducing the difficulty of installing the silver bearing.

[0042] In summary, the present application provides a silver bearing, which introduces lubricating oil into the oil storage chamber 6 through the oil filling hole 4, and then introduces lubricating oil into the shaft cavity 3 through the oil storage chamber 6 to achieve timely and effective lubrication, thereby effectively avoiding mechanical failures such as biting while evenly applying the lubricating oil. Among them, since the oil storage chambers 6 located at both ends of the silver bearing are used to store lubricating oil, the lubricating oil will directly enter the shaft cavity 3 through the oil hole 613 and be evenly distributed on the wear-resistant layer 8, so as to achieve the purpose of timely and uniform lubrication. When the silver bearing is in use, the inner ring body 61 and the outer ring body 62 cooperate to achieve an internal sealing effect, so that when the lubricating oil is injected into the oil storage chamber 6 through the oil filling hole 4, the air in the oil storage chamber 6 is first discharged, so as to prevent the air from expanding due to the increase in temperature and affecting the orderly flow of the lubricating oil; and when the air in the oil storage chamber 6 is completely exhausted, the rotating shaft is connected through the connecting shaft cavity 3, so that the rotating shaft and the silver bearing form a tight connection structure, and then the lubricating oil is further injected through the oil filling hole 4, so that the volume of the oil storage chamber 6 is expanded, and the oil hole 613 on the inner ring wall 611 located on the inner side of the inner ring body 61 is opened, so that the lubricating oil is evenly coated in the shaft cavity 3 through the oil hole 613. At the same time, the silver bearing bushing will be stretched by the inner and outer abutment springs 63 and compressed by the limit spring 72 due to the increase in the volume of the oil storage chamber 6, which will cause the limit spring 72 to push the outer ring body 62 to form a movement trend toward the inner ring body 61, thereby achieving the effect of pushing the lubricating oil in the oil storage chamber 6 to be evenly coated in the shaft cavity 3 through the oil hole 613; and the inner and outer abutment springs 63 will play a role in maintaining the stable operation of the outer ring body 62, balancing the elastic restoring force of the limit spring 72, thereby improving the flow effect of the lubricating oil. In order to avoid the problem of clogging of the oil hole 613, mutually cooperating spiral grooves and limit plugs are set between the inner ring body 61 and the outer ring body 62, so that the inner ring body 61 and the outer ring body 62 can effectively clean the filter when they are in relative motion, thereby avoiding the problem of the difficulty in evenly coating the lubricating oil caused by the clogging of the filter. In the present application, the oil filling holes 4 and the matching connecting oil channels 41 are provided on the front bearing 1 and the rear bearing 2 so that when the lubricating oil is injected into the oil storage chamber 6 at the upper end, the lubricating oil is injected from the upper end into the oil storage chamber 6 at the lower end along one of the connecting oil channels 41, and the air in the oil storage chamber 6 at the lower end will move upward through the other connecting oil channel 41 and be discharged through the corresponding oil filling hole 4. At this time, the height of the oil filling hole 4 for injecting the lubricating oil is controlled to be lower than the height of the other oil filling hole 4, until the lubricating oil fills the upper and lower oil storage chambers 6, and then the lubricating oil is continued to be injected into the oil storage chamber 6 through at least one of the oil filling holes 4, thereby significantly improving the injection efficiency of the lubricating oil.

[0043] The "first", "second", "third", "fourth", etc. (if any) referred to in this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, or devices.

[0044] It should be noted that the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0045] Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A silver bearing, comprising a silver front bearing (1) and a silver rear bearing (2) which are matched and connected to each other, a shaft cavity (3) matching with a rotating shaft is formed between the front bearing (1) and the rear bearing (2), a wear-resistant layer (8) is arranged in the shaft cavity (3), and the characteristics are: Both ends of the front bearing (1) are provided with front lubricating oil chambers (13), and both ends of the rear bearing (2) are provided with rear lubricating oil chambers (23) matched with the corresponding front lubricating oil chambers (13), and an oil storage chamber (6) is provided between the front lubricating oil chamber (13) and the rear lubricating oil chamber (23), and the oil storage chamber (6) is filled with lubricating oil liquid and is used to introduce lubricating oil into the shaft cavity (3); one end of the front bearing (1) and / or the rear bearing (2) is provided with an oil injection hole (4) connected with the corresponding oil storage chamber (6), and the oil injection hole (4) is used to introduce lubricating oil liquid into the oil storage chamber (6), and the volume of the oil storage chamber (6) increases with the increase of lubricating oil liquid; The oil storage chamber (6) comprises an inner ring body (61) and an outer ring body (62) matched with the inner ring body (61), lubricating oil is filled between the inner ring body (61) and the outer ring body (62), and both sides of the inner ring body (61) are provided with inner ring walls (611), and both sides of the outer ring body (62) are provided with outer ring walls (621) abutting against the corresponding inner ring walls (611), and the inner ring wall (611) located on the inner side is provided with a plurality of oil holes (613) distributed with equal arcs; The inner ring body (61) is formed with an inner oil chamber (612) facing outward, and the outer ring body (62) is formed with an outer oil chamber (622) facing inward, and the inner oil chamber (612) and the outer oil chamber (622) are interconnected and used to store lubricating oil; a plurality of inner and outer abutment springs (63) with equal arc distribution are arranged between the outer ring body (62) and the inner ring body (61), and when the length of the inner and outer abutment springs (63) is at a minimum value, the oil hole (613) remains closed.

2. A silver bearing bush according to claim 1, characterized in that: The outer ring wall (621) is inserted into the corresponding inner ring wall (611), the inner diameter of the inner ring wall (611) located on the inner side is larger than the diameter of the shaft cavity (3), and the outer sides of the matching front lubricating oil cavity (13) and rear lubricating oil cavity (23) are provided with outer spacer rings (5), and a spacer ring cavity (51) is provided inside the outer spacer ring (5), and the diameter of the spacer ring cavity (51) matches the diameter of the shaft cavity (3).

3. A silver bearing bush according to claim 2, characterized in that: A sealing plug-in portion (53) is formed between the outer spacer ring (5) and the front bearing (1) and the rear bearing (2); a pin ring (52) is provided on the inner side of the outer spacer ring (5) and abuts against the inner side walls of the corresponding front lubricating oil chamber (13) and the rear lubricating oil chamber (23); an oil control member (7) is provided on the outer side of the outer ring body (62), and one end of the oil control member (7) abuts against the outer ring body (62), and the other end abuts against the inner side of the outer spacer ring (5).

4. A silver bearing bush according to claim 3, characterized in that: The oil control component (7) comprises an abutment ring (71) abutting against the inner side of the outer spacer ring (5) and a plurality of limit springs (72) connected to the inner side of the abutment ring (71) and distributed with equal arcs between the abutment ring (71) and the outer ring body (62), wherein the elastic coefficient of the limit spring (72) is greater than the elastic coefficient of the inner and outer abutment springs (63).

5. The silver bearing bush according to claim 2, characterized in that: The inner side of the inner ring wall (611) located on the outside is provided with a plurality of spiral grooves distributed with equal arcs, the corresponding outer ring wall (621) is provided with a plurality of limit plugs respectively inserted into the corresponding spiral grooves, and the oil hole (613) is provided with a filter.

6. The silver bearing bush according to claim 2, characterized in that: The inner ring body (61) is provided with a plurality of limiting cylinders (64) which are respectively sleeved on corresponding ends of the corresponding inner and outer abutment springs (63).

7. The silver bearing bush according to claim 6, characterized in that: The front bearing (1) and the rear bearing (2) are both provided with a plurality of connecting oil passages (41), and the two ends of the connecting oil passages (41) are respectively connected to the corresponding limiting cylinders (64) in the corresponding oil storage chambers (6).

8. The silver bearing bush according to claim 7, characterized in that: The front bearing (1) is provided with a front groove (11) matching the corresponding oil filling hole (4) and / or the rear bearing (2) is provided with a rear groove (21) matching the corresponding oil filling hole (4); both ends of the front bearing (1) are provided with front connecting parts (12), and both ends of the rear bearing (2) are provided with rear connecting parts (22) matching the corresponding front connecting parts (12); connecting bolts (9) are provided between the front connecting parts (12) and the rear connecting parts (22); both sides of the rear bearing (2) are provided with staggered plug-in columns (24) and plug-in grooves (25), and both sides of the front bearing (1) are matched with the rear bearing (2) and matched and connected with the plug-in columns (24) and the plug-in grooves (25).

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