Grease adding device for main shaft of fan and mounting structure of grease adding device

Abstract

The utility model discloses a fan main shaft grease adding device and a mounting structure thereof, the grease adding device comprises a barrel body, a matching plate, a movable rod, a movable plate, a first spring, an electromagnet and an iron rod, and the matching plate is arranged opposite to the lubricating grease inlet end of the barrel body; the movable rod penetrates through the matching plate and is in sliding fit with the matching plate. A plurality of grooves are formed in the end, away from the lubricating grease outlet end of the barrel, of the movable rod. The movable plate is fixed to the side, facing the lubricating grease outlet end of the barrel, of the movable rod and is in sliding fit with an inner cavity of the barrel. One end of the first spring is fixed on one side of the matching plate facing the lubricating grease inlet end of the barrel, and the other end is fixed on one side of the moving plate deviating from the lubricating grease outlet end of the barrel; the electromagnet is arranged on the side, away from the barrel, of the matching plate. One end of the iron rod is matched with the groove, the other end of the iron rod is matched with the electromagnet, and the iron rod responds to driving force and is matched with or separated from the groove. The device can solve the problem that lubricating grease is insufficient and cannot be perceived when the fan main shaft is greased at present.

Description

Technical Field

[0001] The present application relates to the technical field of wind power generation, and in particular to a fan main shaft greaser and an installation structure thereof. Background Art

[0002] The fan main shaft is one of the main components of wind power generation equipment, and it plays an irreplaceable role in the process of wind power generation. The fan main shaft needs to be lubricated during long-term operation. Traditional lubrication mostly uses manual greasing. Although this method can play a certain role in lubricating the fan main shaft, there are many uncertainties in the manual greasing operation. Although there are some greasers on the market, when the grease in the fan main shaft greaser is insufficient, it cannot be detected in the first time.

[0003] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Utility Model Content

[0004] The main purpose of the present application is to provide a fan main shaft greaser and its installation structure, aiming to solve the current problem of insufficient grease being unable to be sensed when greasing the fan main shaft.

[0005] To achieve the above-mentioned purpose, the present application provides a fan main shaft greaser, including a barrel, a matching plate, a movable rod, a movable plate, a first spring, an electromagnet and an iron rod, wherein the barrel has an inner cavity, the inner cavity of the barrel is used to hold grease, the barrel has a grease inlet end and a grease outlet end; the matching plate is arranged opposite to the grease inlet end of the barrel; the movable rod passes through the matching plate and slidably cooperates with the matching plate, a plurality of grooves are arranged at one end of the movable rod away from the grease outlet end of the barrel, and the movable rod is an iron rod; the movable plate is fixed to the movable rod toward On one side of the grease outlet end of the cylinder, the movable plate is slidably matched with the inner cavity of the cylinder, and the movable plate is in contact with the inner cavity of the cylinder; one end of the first spring is fixed to the side of the matching plate facing the grease inlet end of the cylinder, and the other end is fixed to the side of the movable plate away from the grease outlet end of the cylinder, and the first spring is arranged on the outer periphery of the movable rod; the electromagnet is arranged on the side of the matching plate away from the cylinder; one end of the iron rod is matched with the groove, and the other end is matched with the electromagnet, and the iron rod adapts to or separates from the groove in response to the driving force.

[0006] Optionally, the fan main shaft greaser also includes a base plate, a spring mating seat, a baffle and a second spring, wherein the base plate is fixed to the side of the mating plate away from the grease inlet end of the cylinder, and the base plate is located on one side of the movable rod; the spring mating seat is fixed to the side of the base plate away from the mating plate, the iron rod passes through the spring mating seat, and the side of the spring mating seat facing the movable rod is open; the baffle is arranged at one end of the iron rod close to the movable rod; the second spring is arranged between the baffle and the spring mating seat, the second spring is arranged in the opening of the spring mating seat, and the second spring is arranged on the outer periphery of the iron rod.

[0007] Optionally, a plurality of connecting rods are provided between the matching plate and the grease inlet end of the cylinder, and one end of each connecting rod is plugged into the matching plate, and the other end is plugged into the grease inlet end of the cylinder.

[0008] Optionally, a sieve plate is provided at the grease outlet end of the cylinder, and a plurality of through holes are formed on the sieve plate.

[0009] Optionally, the movable rod is a square rod, and a plurality of the grooves are evenly arranged on a side of the movable rod facing the electromagnet.

[0010] Optionally, the fan main shaft greaser also includes a detection mechanism, wherein the detection mechanism is arranged on one side of the grease outlet end of the cylinder, and the detection mechanism is used to output a power-on signal to the electromagnet, and the electromagnet provides the driving force in response to the power-on signal.

[0011] Optionally, the detection mechanism includes a shell, an airbag, a block, a first magnet, a second magnet, a connecting plate, a micro switch and a third spring, wherein a through hole is provided on one side of the shell close to the grease outlet end of the cylinder, a partition is provided in the shell, the partition divides the inner cavity of the shell into a first chamber and a second chamber, and the shell is made of plastic; the airbag is filled with gas, the airbag is movably arranged in the first chamber and has the freedom of movement along the depth direction of the first chamber, the airbag includes a first capsule body and a second capsule body, the first capsule body is in contact with the inner wall of the first chamber; the block is fixed in the first chamber, a matching hole is provided in the middle of the block, and the first The two capsules are movably matched in the matching holes; the first magnet is arranged in the first chamber and has the freedom of movement along the depth direction of the first chamber, the first magnet is in contact with the inner wall of the first chamber and is in contact with the second capsule; the second magnet is movably arranged in the second chamber and has the freedom of movement along the depth direction of the second chamber, the second magnet is in contact with the inner wall of the second chamber and the magnetic pole on the side opposite to the first magnet is the same as the magnetic pole of the first magnet; the connecting plate is fixed at the opening of the second chamber; the micro switch is fixed on the connecting plate; the third spring is located in the second chamber and is arranged between the second magnet and the connecting plate.

[0012] Optionally, a first support plate and a second support plate are disposed in the first bag body of the airbag, the first support plate and the second support plate are disposed opposite to each other, and a fourth spring is disposed between the first support plate and the second support plate.

[0013] Optionally, the fan main shaft greaser further comprises a base, wherein the base is fixed to a side of the matching plate facing away from the cylinder, and the electromagnet is fixed to a side of the base facing away from the matching plate.

[0014] In addition, to achieve the above-mentioned purpose, the present application also provides an installation structure of a fan main shaft lubricator, including a fan main shaft, a bearing, a connecting ring and multiple fan main shaft lubricators, wherein the bearing is fixed on the fan main shaft; the connecting ring is arranged on the bearing; and multiple above-mentioned fan main shaft lubricators are evenly arranged on the outer periphery of the connecting ring and all pass through the connecting ring.

[0015] A fan main shaft greaser proposed in an embodiment of the present application, by arranging an iron rod on the side of the grease inlet end of the matching plate away from the cylinder, during the process of greasing the fan main shaft, the movement of the movable rod can be controlled, thereby controlling the movement of the movable plate on the inner wall of the cylinder. Driven by the elastic force of the first spring, the grease is quantitatively squeezed out from the grease outlet end of the cylinder and gradually added to the fan main shaft to achieve lubrication of the fan main shaft. During the greasing process, when the grease in the cylinder is sufficient, the iron rod disengages from the groove on the movable rod to continue greasing; when the grease in the cylinder is insufficient, the iron rod cooperates with the groove on the movable rod to stop greasing. When greasing the fan main shaft, it can immediately sense whether the grease in the cylinder is insufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a fan main shaft lubricator provided in an embodiment of the present application;

[0017] Figure 2 for Figure 1 The structural schematic diagram without the matching plate;

[0018] Figure 3 for Figure 1 Another perspective structural diagram of;

[0019] Figure 4 for Figure 1 The structural diagram without the movable rod;

[0020] Figure 5 for Figure 4 A magnified view of part A;

[0021] Figure 6 for Figure 1 A cross-sectional view of the detection mechanism;

[0022] Figure 7 A schematic diagram of the three-dimensional structure of a mounting structure of a fan main shaft lubricator provided in an embodiment of the present application;

[0023] Among them, 1. cylinder; 2. matching plate; 3. movable rod; 301. groove; 4. movable plate; 5. first spring; 601. base; 602. electromagnet; 603. iron rod; 604. bottom plate; 605. spring matching seat; 606. baffle; 607. second spring; 7. connecting rod; 8. sieve plate; 9. detection mechanism; 901. shell; 902. through hole; 903. partition; 904. first chamber; 905. second chamber; 906. airbag; 9061. first support plate; 9062. second support plate; 9063. fourth spring; 907. block; 908. first magnet; 909. second magnet; 910. connecting plate; 911. micro switch; 912. third spring; 10. fan main shaft; 11. bearing; 12. connecting ring.

[0024] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used 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 meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0029] See also Figure 1 , Figure 2, the embodiment of the present application provides a fan main shaft greaser, the fan main shaft greaser may include a barrel 1, a matching plate 2, a movable rod 3, a movable plate 4, a first spring 5, an electromagnet 602 and an iron rod 603, wherein the barrel 1 has an inner cavity, the inner cavity of the barrel 1 is used to hold grease, the barrel 1 has a grease inlet end and a grease outlet end; the matching plate 2 is arranged opposite to the grease inlet end of the barrel 1; the movable rod 3 passes through the matching plate 2 and slidably cooperates with the matching plate 2, and a plurality of grooves 301 are arranged at one end of the movable rod 3 away from the grease outlet end of the barrel 1, and the movable rod 3 is an iron rod; the movable plate 4 is fixed to the side of the movable rod 3 facing the grease outlet end of the cylinder 1, the movable plate 4 is slidably matched with the inner cavity of the cylinder 1, and the movable plate 4 is fitted with the inner cavity of the cylinder 1; one end of the first spring 5 is fixed to the side of the matching plate 2 facing the grease inlet end of the cylinder 1, and the other end is fixed to the side of the movable plate 4 away from the grease outlet end of the cylinder 1, and the first spring 5 is arranged on the outer periphery of the movable rod 3; the electromagnet 602 is arranged on the side of the matching plate 2 away from the cylinder 1; one end of the iron rod 603 is matched with the groove 301, and the other end is matched with the electromagnet 602, and the iron rod 603 adapts to or separates from the groove 301 in response to the driving force.

[0030] During the use of the fan main shaft greaser involved in the present application, the inner cavity of the cylinder 1 is filled with grease. When grease is added to the fan main shaft, the movable rod 3 slides along the matching plate 2 toward the grease outlet end of the cylinder 1. At this time, the movable plate 4 also moves, and the first spring 5 is in a compressed state. Under the elastic force of the first spring 5, the movable plate 4 gradually squeezes the grease out of the grease outlet end of the cylinder 1 and completes the grease addition to the fan main shaft. During the entire greasing process, under the action of the electromagnet 602, the iron rod 603 can cooperate with the groove 301 on the movable rod 3 or come out of the groove 301, thereby realizing greasing or stopping greasing.

[0031] In this embodiment, an iron rod 603 is provided on the side of the mating plate 2 away from the grease inlet end of the cylinder 1. When greasing the fan main shaft, the movement of the movable rod 3 can be controlled, thereby controlling the movement of the movable plate 4 on the inner wall of the cylinder 1. Driven by the elastic force of the first spring 5, the grease is quantitatively squeezed out from the grease outlet end of the cylinder 1 and gradually added to the fan main shaft to achieve lubrication of the fan main shaft. During the greasing process, when the grease in the cylinder 1 is sufficient, the iron rod 603 disengages from the groove 301 on the movable rod 3 to continue greasing; when the grease in the cylinder 1 is insufficient, the iron rod 603 cooperates with the groove 301 on the movable rod 3 to stop greasing. When greasing the fan main shaft, it is possible to immediately sense whether the grease in the cylinder 1 is insufficient.

[0032] See also Figure 5The fan main shaft greaser can also include a base plate 604, a spring fitting seat 605, a baffle 606 and a second spring 607, wherein the base plate 604 is fixed to the side of the fitting plate 2 away from the grease inlet end of the cylinder 1, and the base plate 604 is located on one side of the movable rod 3; the spring fitting seat 605 is fixed to the side of the base plate 604 away from the fitting plate 2, the iron rod 603 passes through the spring fitting seat 605, and the side of the spring fitting seat 605 facing the movable rod 3 is open; the baffle 606 is arranged at one end of the iron rod 603 close to the movable rod 3; the second spring 607 is arranged between the baffle 606 and the spring fitting seat 605, the second spring 607 is arranged in the open opening of the spring fitting seat 605, and the second spring 607 is arranged on the outer periphery of the iron rod 603.

[0033] In this embodiment, the spring fitting seat 605, the baffle 606 and the second spring 607 are mainly added. When the iron rod 603 is no longer subjected to the magnetic force, it is reset due to the elastic force of the second spring 607 and continues to fit in the groove 301, thereby preventing the fan main shaft greaser from continuing to grease the fan main shaft. The second spring 607 is fitted between the spring fitting seat 605 and the baffle 606. When the iron rod 603 is fitted in the groove 301, the second spring 607 is in a state of natural expansion and contraction. When the iron rod 603 leaves the groove 301, the second spring 607 is in a compressed state. Once the iron rod 603 loses the magnetic attraction, it will be reset in the groove 301 under the elastic force of the second spring 607. The entire structure is simple, reliable and easy to manufacture.

[0034] See also Figure 1 to Figure 4 A plurality of connecting rods 7 are arranged between the matching plate 2 and the grease inlet end of the cylinder 1 , one end of each connecting rod 7 is plugged into the matching plate 2 , and the other end is plugged into the grease inlet end of the cylinder 1 .

[0035] In this embodiment, the connecting rod 7 is arranged as a plug-in structure between the matching plate 2 and the grease inlet end of the cylinder 1. When the grease in the inner cavity of the cylinder 1 needs to be added to the cylinder 1 after the grease is used up, it is only necessary to pull the matching plate 2 out of the connecting rod 7, and pull out the movable rod 3, the first spring 5 and the movable plate 4 from the cylinder 1, and the grease can be added to the cylinder 1. The whole structure is simple and compact, and does not require a complex structure.

[0036] See also Figure 3 A sieve plate 8 is provided at the grease outlet end of the cylinder 1, and a plurality of through holes are opened on the sieve plate 8.

[0037] In this embodiment, by adding a screen plate 8 at the grease outlet end of the cylinder 1, during the greasing process, it is beneficial to add the grease evenly to the fan main shaft, avoiding a large amount of grease being added to the same position of the fan main shaft, resulting in uneven distribution of the grease on the fan main shaft.

[0038] See also Figure 1 to Figure 3 The movable rod 3 is a square rod, and a plurality of the grooves 301 are evenly arranged on one side of the movable rod 3 facing the electromagnet 602 .

[0039] In this embodiment, the movable rod 3 is configured as a square rod, which is more conducive to the configuration of the groove 301 and more conducive to the matching of the iron rod 603 with the groove 301. Of course, in some embodiments, the movable rod 3 can be configured as a cylindrical rod.

[0040] See also Figure 1 to Figure 3 The fan main shaft greaser may further include a detection mechanism 9, wherein the detection mechanism 9 is disposed on one side of the grease outlet end of the barrel 1, and the detection mechanism 9 is used to output a power-on signal to the electromagnet 602, and the electromagnet 602 provides a driving force in response to the power-on signal.

[0041] Among them, the detection mechanism 9 is used to detect whether there is grease in the cylinder 1. When the detection mechanism 9 detects that there is grease in the cylinder 1, a signal is sent to the electromagnet 602, and the movable rod 3 will continue to move, thereby adding grease to the fan main shaft; when the detection mechanism 9 detects that there is no grease in the cylinder 1, no signal is sent to the electromagnet 602, and the movable rod 3 stops moving under the limit of the iron rod 603, thereby stopping greasing the fan main shaft.

[0042] See also Figure 6The detection mechanism 9 may include a shell 901, an airbag 906, a stopper 907, a first magnet 908, a second magnet 909, a connecting plate 910, a micro switch 911 and a third spring 912, wherein a through hole 902 is provided on one side of the shell 901 close to the grease outlet end of the cylinder 1, a partition 903 is provided in the shell 901, and the partition 903 divides the inner cavity of the shell 901 into a first chamber 904 and a second chamber 905, and the shell 901 is made of plastic; the airbag 906 is filled with gas, and the airbag 906 is arranged in the first chamber 904 and has the freedom of movement along the depth direction of the first chamber 904, and the airbag 906 includes a first capsule body and a second capsule body, and the first capsule body contacts the inner wall of the first chamber 904; the stopper 907 is fixed in the first chamber 904, and the stopper 907 A matching hole is opened in the middle, and the second capsule is moved and matched in the matching hole; the first magnet 908 is movably set in the first chamber 904 and has the freedom of movement along the depth direction of the first chamber 904, and the first magnet 908 is in contact with the inner wall of the first chamber 904 and the second capsule; the second magnet 909 is set in the second chamber 905 and has the freedom of movement along the depth direction of the second chamber 905, and the second magnet 909 is in contact with the inner wall of the second chamber 905 and the magnetic pole on the side opposite to the first magnet 908 is the same as the magnetic pole of the first magnet 908; the connecting plate 910 is fixed at the opening of the second chamber 905; the micro switch 911 is fixed on the connecting plate 910; the third spring 912 is located in the second chamber 905 and is set between the second magnet 909 and the connecting plate 910.

[0043] When greasing the fan main shaft, if there is sufficient grease in the cylinder 1, the grease will enter the detection mechanism 9 from the through hole 902 during the greasing process. In this process, the grease first enters the first chamber 904. The grease in the first chamber 904 pushes the airbag 906 to move in the direction of the first magnet 908, so that the first magnet 908 moves in the direction of the second magnet 909. Since the first magnet 908 and the second magnet 909 repel each other, the second magnet 909 is forced to move in the direction of the micro switch 911, the third spring 912 is compressed, the micro switch 911 is opened, and then the micro switch 911 gives the electromagnet 6 02 sends a signal, the electromagnet 602 receives the signal sent by the microswitch 911 and causes the movable rod 3 to continue to move, thereby continuing to grease the fan main shaft; if the grease in the cylinder 1 is insufficient, under the elastic force of the third spring 912, the second magnet 909 moves toward the direction of the first magnet 908, and the first magnet 908 moves toward the direction of the airbag 906 after receiving the repulsive force, and the airbag 906 moves toward the direction of the through hole 902 after being subjected to the force. At this time, the microswitch 911 is closed, so that no signal is sent to the electromagnet 602, the iron rod 603 limits the movable rod 3, and the movable plate 4 does not move in the cylinder 1, thereby stopping greasing the fan main shaft.

[0044] This embodiment mainly realizes the control of the electromagnet 602 by setting the airbag 906, the first magnet 908, the second magnet 909 and the micro switch 911. That is, when the grease enters the shell 901, under the action of the airbag 906, the first magnet 908 and the second magnet 909, the micro switch 911 opens and sends a signal to the electromagnet 602, the iron rod 603 disengages from the movable rod 3, and the greasing is completed. Otherwise, the greasing is stopped, which is conducive to detecting the condition of the grease in the cylinder 1 at the first time.

[0045] See also Figure 6 A first support plate 9061 and a second support plate 9062 are disposed in the first bag body of the airbag 906 . The first support plate 9061 and the second support plate 9062 are disposed opposite to each other. A fourth spring 9063 is disposed between the first support plate 9061 and the second support plate 9062 .

[0046] In this embodiment, by disposing a first support plate 9061 and a second support plate 9062 in the airbag 906 and disposing a fourth spring 9063 between the first support plate 9061 and the second support plate 9062, deformation of the structure of the airbag 906 is avoided while ensuring the lightness of the entire airbag 906.

[0047] See also Figure 5The fan main shaft greaser also includes a base 601, wherein the base 601 is fixed to a side of the matching plate 2 away from the cylinder 1, and the electromagnet 602 is fixed to a side of the base 601 away from the matching plate 2.

[0048] Among them, by arranging the base 601 on the matching plate 2, it is convenient to fix the electromagnet 602, making the electromagnet 602 more stable.

[0049] See also Figure 7 A fan main shaft greaser installation structure includes a fan main shaft 10, a bearing 11, a connecting ring 12 and a plurality of fan main shaft greasers, wherein the bearing 11 is fixed on the fan main shaft 10; the connecting ring 12 is arranged on the bearing 11; the plurality of fan main shaft greasers are evenly arranged on the outer periphery of the connecting ring 12, and the plurality of fan main shaft greasers all penetrate the connecting ring 12.

[0050] Specifically, when greasing the fan main shaft 10, multiple fan main shaft greasers are used to grease the fan main shaft 10 at the same time. Due to the presence of the bearing 11, the rotation of the fan main shaft is not affected during the greasing process, and greasing can be achieved while generating electricity.

[0051] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A fan main shaft greaser, characterized in that: include: The cylinder (1) has an inner cavity, the inner cavity of the cylinder (1) is used to contain lubricating grease, and the cylinder (1) has a lubricating grease inlet end and a lubricating grease outlet end; A matching plate (2) is arranged opposite to the grease inlet end of the cylinder (1); A movable rod (3) passes through the matching plate (2) and is slidably matched with the matching plate (2); a plurality of grooves (301) are provided at one end of the movable rod (3) away from the grease outlet end of the barrel (1); and the movable rod (3) is an iron rod; A movable plate (4) is fixed to a side of the movable rod (3) facing the grease outlet end of the cylinder (1), the movable plate (4) is slidably matched with the inner cavity of the cylinder (1), and the movable plate (4) is in close contact with the inner cavity of the cylinder (1); A first spring (5), one end of which is fixed to a side of the matching plate (2) facing the grease inlet end of the cylinder (1), and the other end of which is fixed to a side of the movable plate (4) facing away from the grease outlet end of the cylinder (1), the first spring (5) being arranged on the outer periphery of the movable rod (3); An electromagnet (602) is arranged on a side of the matching plate (2) facing away from the cylinder (1); An iron rod (603) has one end matched with the groove (301) and the other end matched with the electromagnet (602). The iron rod (603) is adapted to or separated from the groove (301) in response to a driving force.

2. The fan main shaft lubricator according to claim 1, characterized in that: The fan main shaft greaser also includes: A bottom plate (604) is fixed to a side of the matching plate (2) facing away from the grease inlet end of the cylinder (1), and the bottom plate (604) is located on one side of the movable rod (3); A spring matching seat (605) is fixed to a side of the bottom plate (604) facing away from the matching plate (2), the iron rod (603) passes through the spring matching seat (605), and the side of the spring matching seat (605) facing the movable rod (3) is open; A baffle (606) is arranged at one end of the iron rod (603) close to the movable rod (3); The second spring (607) is arranged between the baffle (606) and the spring fitting seat (605), the second spring (607) is arranged in the opening of the spring fitting seat (605), and the second spring (607) is arranged on the outer periphery of the iron rod (603).

3. The fan main shaft lubricator according to claim 1, characterized in that: A plurality of connecting rods (7) are arranged between the matching plate (2) and the grease inlet end of the cylinder (1), and one end of each connecting rod (7) is plugged into the matching plate (2) and the other end is plugged into the grease inlet end of the cylinder (1).

4. The fan main shaft lubricator according to claim 1, characterized in that: A sieve plate (8) is provided at the grease outlet end of the cylinder (1), and a plurality of through holes are provided on the sieve plate (8).

5. The fan main shaft lubricator according to claim 1, characterized in that: The movable rod (3) is a square rod, and a plurality of grooves (301) are evenly arranged on one side of the movable rod (3) facing the electromagnet (602).

6. The fan main shaft lubricator according to claim 1, characterized in that: The fan main shaft greaser also includes: The detection mechanism (9) is arranged on one side of the grease outlet end of the barrel (1), and the detection mechanism (9) is used to output a power-on signal to the electromagnet (602), and the electromagnet (602) provides the driving force in response to the power-on signal.

7. The fan main shaft lubricator according to claim 6, characterized in that: The detection mechanism (9) comprises: A shell (901) is provided with a through hole (902) on one side close to the grease outlet end of the barrel (1); a partition (903) is provided inside the shell (901); the partition (903) divides the inner cavity of the shell (901) into a first chamber (904) and a second chamber (905); and the shell (901) is made of plastic; an airbag (906) filled with gas, the airbag (906) being disposed in the first chamber (904) and having a degree of freedom of movement along a depth direction of the first chamber (904), the airbag (906) comprising a first capsule body and a second capsule body, the first capsule body being in contact with an inner wall of the first chamber (904); A stopper (907) is fixed in the first chamber (904), a matching hole is provided in the middle of the stopper (907), and the second capsule is movably matched in the matching hole; A first magnet (908) is disposed in the first chamber (904) and has a degree of freedom of movement along the depth direction of the first chamber (904), the first magnet (908) being in contact with the inner wall of the first chamber (904) and in contact with the second capsule; a second magnet (909) disposed in the second chamber (905) and having a degree of freedom of movement along the depth direction of the second chamber (905), the second magnet (909) being in contact with the inner wall of the second chamber (905) and having a magnetic pole on a side opposite to the first magnet (908) being the same as the magnetic pole of the first magnet (908); A connecting plate (910) fixed to the opening of the second chamber (905); A micro switch (911), fixed on the connecting plate (910); The third spring (912) is located in the second chamber (905) and is arranged between the second magnet (909) and the connecting plate (910).

8. The fan main shaft lubricator according to claim 7, characterized in that: A first support plate (9061) and a second support plate (9062) are arranged in the first bag body of the airbag (906); the first support plate (9061) and the second support plate (9062) are arranged opposite to each other; and a fourth spring (9063) is arranged between the first support plate (9061) and the second support plate (9062).

9. The fan main shaft lubricator according to claim 1, characterized in that: The fan main shaft greaser also includes: The base (601) is fixed to a side of the matching plate (2) facing away from the cylinder (1), and the electromagnet (602) is fixed to a side of the base (601) facing away from the matching plate (2).

10. A mounting structure for a fan main shaft lubricator, characterized in that: include: Fan main shaft (10); A bearing (11) fixed on the fan main shaft (10); A connecting ring (12) is arranged on the bearing (11); A plurality of fan main shaft greasers as described in any one of claims 1 to 9 are evenly arranged on the outer periphery of the connecting ring (12) and penetrate the connecting ring (12).

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