Overheat protection device for transmission mechanism of generator set

Abstract

The utility model discloses an overheat protection device for a transmission mechanism of a generator set, and relates to the technical field of overheat protection of transmission mechanisms. The utility model comprises: a mounting column; the transmission mechanism is arranged above the mounting column and is used for driving the wind driven generator; the oil injection mechanism is positioned above the transmission mechanism and is used for realizing overheating protection on the transmission mechanism; the circulating mechanism is positioned below the oil injection mechanism; the mounting frame is used for mounting a to-be-circulated mechanism and is fixedly connected with the mounting column; in the rotating process of the lead screw, under the limiting effect of the limiting groove, the sliding rod drives the piston to slide leftwards in the oil storage tank, lubricating oil in the oil storage tank is injected into the transmission mechanism from the oil injection port, the temperature of newly injected oil is low, and high temperature caused by high-speed transmission operation of the mechanism in the transmission mechanism is neutralized.

Description

Technical Field

[0001] The utility model relates to the technical field of overheat protection of transmission mechanisms, in particular to an overheat protection device for a transmission mechanism of a generator set. Background Art

[0002] The transmission mechanism of the wind turbine generator set is connected by the blades, and then the power is sent to the speed increasing mechanism. The transmission mechanism is composed of the bearing seat, the main transmission shaft, the bearing, and the coupling. Due to the long-term high-load operation of the transmission mechanism of the wind turbine generator set, the friction of the bearing roller generates heat. When there are wear defects on the surface of the bearing roller, the bearing temperature will exceed the normal operating temperature. Because the wind turbine generator set is not monitored, the excessive temperature cannot be handled in time, and the transmission mechanism overheats and causes cabin fires from time to time, causing all the core equipment of the wind turbine to burn out and cause heavy losses.

[0003] In the prior art, temperature monitoring is often used to monitor the temperature of various parts of the transmission mechanism in real time, and the detection data is sent to the working end. However, when the transmission mechanism overheats, measures cannot be taken in the first time of detection, and there is still the possibility of damage to the transmission mechanism due to overheating.

[0004] For this purpose, an overheat protection device for a transmission mechanism of a generator set is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems mentioned in the above background technology, and provide an overheat protection device for the transmission mechanism of a generator set.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical scheme: an overheat protection device for a transmission mechanism of a generator set, comprising:

[0007] Mounting columns;

[0008] A transmission mechanism, arranged above the mounting column and used for driving the wind turbine;

[0009] The oil injection mechanism is located above the transmission mechanism to protect the transmission mechanism from overheating;

[0010] A circulation mechanism, located below the oil filling mechanism;

[0011] The mounting frame is used to mount the circulating mechanism and is fixedly connected to the mounting column.

[0012] Furthermore, the oil filling mechanism includes an oil storage tank and a piston located in the oil storage tank, and an oil filling pipe is provided at the left end of the oil storage tank, an opening and closing ball is provided in the oil filling pipe, and a through hole is provided on the opening and closing ball. The lubricating oil in the oil storage tank is injected into the transmission mechanism through the oil filling pipe, and the opening and closing of the oil filling pipe is realized by the opening and closing ball.

[0013] Furthermore, a mounting tube is provided on the oil storage tank, a sliding rod is provided on the piston, two groups of symmetrically distributed limit grooves are opened on both sides of the sliding rod, and the sliding rod is slidably connected to the mounting tube through the limit grooves, and a screw rod and a first motor are provided in the mounting tube. The sliding rod drives the piston to move to the left, and the lubricating oil in the oil storage tank is injected into the transmission mechanism from the oil filling pipe.

[0014] Furthermore, the screw rod is rotatably connected to the mounting tube via a bearing, and the screw rod passes through the sliding rod and is threadedly connected to the sliding rod. The end of the screw rod away from the sliding rod is connected to the output end of the first motor. The first motor is started to drive the screw rod to rotate. During the rotation of the screw rod, the sliding rod drives the piston to slide to the left in the oil tank under the limiting action of the limiting groove.

[0015] Furthermore, the opening and closing ball is rotatably connected to the oil filling pipe through an installation shaft, and a gear is sleeved on the installation shaft, a cylinder and a rack are provided on the oil filling pipe, and the rack is connected to the output end of the cylinder piston rod, the rack is slidably connected to the oil filling pipe, and the rack is meshingly connected to the gear, the rack is driven to slide by the cylinder, and the rack is meshingly connected to the gear, and the gear drives the installation shaft and the opening and closing ball to rotate while the rack slides.

[0016] Furthermore, the circulation mechanism includes an oil pump, which is connected to the oil storage tank through an oil outlet pipe and an oil inlet pipe, and a diverter plate is embedded in the oil outlet pipe, and a plurality of symmetrically distributed diverter grooves are provided in the diverter plate. The original high-temperature oil in the transmission mechanism is diverted after passing through the diverter plate and flows into each diverter groove respectively.

[0017] Furthermore, a fixed frame is provided under the diverter plate, and a fan is installed on the fixed frame, two sets of synchronous wheels are provided on the fixed frame, and a synchronous belt is provided on the fixed frame, and a second motor is provided on the fixed frame. After the oil is diverted, the contact area with the diverter plate is increased, and the heat dissipation is assisted by the fan to increase the heat dissipation efficiency.

[0018] Furthermore, the synchronous belt is respectively connected to the two sets of synchronous wheels, and the right synchronous wheel is connected to the output end of the second motor through a rotating shaft, and the left synchronous wheel is fixedly installed with the fan through a rotating shaft. The second motor is started to drive the synchronous wheel to rotate, and the gears are used to make the other set of synchronous wheels drive the fan to rotate, so as to dissipate heat for the diverter plate and the lubricating oil flowing in the diverter plate.

[0019] The beneficial effects of the utility model are as follows:

[0020] When installing the oil storage tank, fill a sufficient amount of lubricating oil in the oil storage tank, and drive the rack to slide through the cylinder, the rack is meshed with the gear, and the gear drives the installation shaft and the opening and closing ball to rotate while the rack slides, so that the through hole on the opening and closing ball is perpendicular to the flow direction of the oil filling pipe, and the oil filling pipe is closed. After the temperature measuring device measures that the temperature in the transmission mechanism has reached the critical value, the cylinder is started to drive the rack to slide in the opposite direction again, so that the direction of the through hole is consistent with the flow direction of the oil filling pipe, and the first motor is started to drive the screw rod to rotate. During the rotation of the screw rod, the sliding rod drives the piston to slide to the left in the oil storage tank under the limiting action of the limiting groove, and the lubricating oil in the oil storage tank is injected into the transmission mechanism from the oil filling port. The newly injected oil has a lower temperature, which neutralizes the high temperature caused by the high-speed transmission operation of the transmission mechanism. At the same time, the oil pump is started to extract the crude oil from the oil outlet pipe. When the high-temperature oil is extracted, it is diverted by the diverter groove under the pressure of the oil pump when passing through the diverter plate. At the same time, the second motor is started to drive the synchronous wheel to rotate, and the gears are used to make another set of synchronous wheels drive the fan to rotate. The diverter plate and the lubricating oil flowing in the diverter plate are heat-dissipated. The cooled oil flows back into the oil storage tank from the oil inlet pipe after passing through the oil pump, thereby realizing the reciprocating circulation of the lubricating oil. At the same time, the transmission mechanism is protected from overheating to avoid damage to the generator set caused by overheating of the transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the oil injection mechanism of the utility model;

[0023] Figure 3 For this utility model Figure 2 -A magnified view of the structure;

[0024] Figure 4 It is a structural schematic diagram of the circulation mechanism of the utility model.

[0025] 1. Mounting column; 2. Transmission mechanism; 3. Mounting frame; 4. Oil filling mechanism; 401. Oil storage tank; 402. Mounting pipe; 403. Oil filling pipe; 404. Opening and closing ball; 405. Through hole; 406. Mounting shaft; 407. Gear; 408. Rack; 409. Cylinder; 410. Piston; 411. Sliding rod; 412. Limiting groove; 413. Screw rod; 414. First motor; 5. Circulation mechanism; 501. Oil outlet pipe; 502. Diverter plate; 503. Diverter groove; 504. Oil inlet pipe; 505. Oil pump; 506. Fixed frame; 507. Fan; 508. Synchronous wheel; 509. Synchronous belt; 510. Second motor. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0030] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] like Figures 1 to 4 As shown, an overheat protection device for a transmission mechanism 2 of a generator set comprises:

[0032] A mounting column 1; a transmission mechanism 2, which is arranged above the mounting column 1 and is used to drive the wind turbine; an oil injection mechanism 4, which is located above the transmission mechanism 2 and is used to protect the transmission mechanism 2 from overheating; a circulation mechanism 5, which is located below the oil injection mechanism 4; a mounting frame 3, which is used to install the circulation mechanism 5 and is fixedly connected to the mounting column 1.

[0033] During the use of the transmission mechanism 2, a large amount of heat generated by the internal mechanical transmission is absorbed by the lubricating oil, and the internal temperature of the transmission mechanism 2 rises. After reaching the limit of the temperature monitoring device, the oil injection mechanism 4 starts to inject oil into the transmission mechanism 2, and cooperates with the circulation mechanism 5 to complete oil replacement and overheating protection.

[0034] like Figure 2 , Figure 3 As shown, the oil filling mechanism 4 includes an oil storage tank 401 and a piston 410 located in the oil storage tank 401, and an oil filling pipe 403 is provided at the left end of the oil storage tank 401, an opening and closing ball 404 is provided in the oil filling pipe 403, and a through hole 405 is provided on the opening and closing ball 404, a mounting tube 402 is provided on the oil storage tank 401, and a slide rod 411 is provided on the piston 410, and two groups of symmetrically distributed limiting grooves 412 are provided on both sides of the slide rod 411, and the slide rod 411 The limiting groove 412 is slidably connected with the mounting tube 402, and a screw rod 413 and a first motor 414 are arranged in the mounting tube 402. The screw rod 413 is rotatably connected with the mounting tube 402 through a bearing, and the screw rod 413 passes through the slide rod 411 and is threadedly connected with the slide rod 411. The end of the screw rod 413 away from the slide rod 411 is connected to the output end of the first motor 414. The opening and closing ball 404 is rotatably connected with the oil filling pipe 403 through the mounting shaft 406, and the mounting shaft A gear 407 is sleeved on 406, and a cylinder 409 and a rack 408 are provided on the oil filling pipe 403, and the rack 408 is connected to the output end of the piston 410 rod of the cylinder 409, the rack 408 is slidably connected to the oil filling pipe 403, and the rack 408 is meshed with the gear 407. After the temperature measuring device measures that the temperature in the transmission mechanism 2 has reached the critical value, the cylinder 409 is started to drive the rack 408 to slide in the opposite direction again, so that the direction of the through hole 405 is consistent with the flow direction of the oil filling pipe 403, and the first motor 414 is started to drive the screw rod 413 to rotate. During the rotation of the screw rod 413, the sliding rod 411 drives the piston 410 to slide to the left in the oil storage tank 401 under the limiting action of the limiting groove 412, and the lubricating oil in the oil storage tank 401 is injected into the transmission mechanism 2 from the oil filling port. The temperature of the newly injected oil is relatively low, which neutralizes the high temperature caused by the high-speed transmission operation of the mechanism in the transmission mechanism 2, thereby realizing overheat protection.

[0035] like Figure 4As shown, the circulation mechanism 5 includes an oil pump 505, and the oil pump 505 is connected to the oil storage tank 401 through an oil outlet pipe 501 and an oil inlet pipe 504, and a diverter plate 502 is embedded on the oil outlet pipe 501, and a plurality of symmetrically distributed diverter grooves 503 are provided in the diverter plate 502, and a fixing frame 506 is provided below the diverter plate 502, and a fan 507 is installed on the fixing frame 506, and two sets of synchronous wheels 508 are provided on the fixing frame 506, and a synchronous belt 509 is provided on the fixing frame 506, and a second motor 510 is provided on the fixing frame 506, and the synchronous belt 509 is respectively connected to the two sets of synchronous wheels 508 through a rotating shaft, and the right synchronous wheel 508 is connected to the output end of the second motor 510 through a rotating shaft, and the left synchronous wheel 508 is connected to the fan through a rotating shaft. 507 is fixedly installed. During the operation of the oil injection mechanism 4, the oil pump 505 is started to extract the crude oil from the oil outlet pipe 501. When the extracted high-temperature oil passes through the diverter plate 502, it is diverted by the diverter groove 503 under the pressure of the oil pump 505. At the same time, the second motor 510 is started to drive the synchronous wheel 508 to rotate, and the gear 407 is cooperated to make another set of synchronous wheels 508 drive the fan 507 to rotate. For the diverter plate 502 and the lubricating oil flowing in the diverter plate 502, the cooled oil flows back into the oil storage tank 401 from the oil inlet pipe 504 after passing through the oil pump 505, thereby realizing the reciprocating circulation of the lubricating oil. At the same time, the transmission mechanism 2 is protected from overheating to avoid damage to the generator set caused by overheating of the transmission mechanism 2.

[0036] In summary: during the use of the transmission mechanism 2, a large amount of heat is generated by the internal mechanical transmission and absorbed by the lubricating oil, and the internal temperature of the transmission mechanism 2 rises. After reaching the limit of the temperature monitoring device, the cylinder 409 is started to drive the rack 408 to slide in the opposite direction again, so that the direction of the through hole 405 is consistent with the flow direction of the oil filling pipe 403, and the first motor 414 is started to drive the screw rod 413 to rotate. During the rotation of the screw rod 413, under the limiting action of the limiting groove 412, the slide rod 411 drives the piston 410 to slide to the left in the oil storage tank 401, and the lubricating oil in the oil storage tank 401 is injected into the transmission mechanism 2 from the oil filling port. The temperature of the newly injected oil is relatively low, which neutralizes the high-speed transmission operation of the mechanism in the transmission mechanism 2. The high temperature caused by this is achieved. At the same time, the oil pump 505 is started to extract the crude oil from the oil outlet pipe 501. When the extracted high-temperature oil passes through the diverter plate 502, it is diverted by the diverter groove 503 under the pressure of the oil pump 505. At the same time, the second motor 510 is started to drive the synchronous wheel 508 to rotate, and the gear 407 is used to make another set of synchronous wheels 508 drive the fan 507 to rotate. The diverter plate 502 and the lubricating oil flowing in the diverter plate 502 are heat-dissipated. The cooled oil flows through the oil pump 505 and then re-flows into the oil storage tank 401 from the oil inlet pipe 504, thereby realizing the reciprocating circulation of the lubricating oil. At the same time, the transmission mechanism 2 is protected from overheating to prevent the transmission mechanism 2 from overheating and damaging the generator set.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An overheat protection device for a transmission mechanism (2) of a generator set, characterized in that: include: Mounting column (1); A transmission mechanism (2) is arranged above the mounting column (1) and is used to drive the wind turbine generator; An oil injection mechanism (4) is located above the transmission mechanism (2) to provide overheat protection for the transmission mechanism (2); A circulation mechanism (5) located below the oil injection mechanism (4); The mounting frame (3) is used to mount the circulation mechanism (5) and is fixedly connected to the mounting column (1).

2. An overheat protection device for a generator set transmission mechanism (2) according to claim 1, characterized in that: The oil injection mechanism (4) comprises an oil storage tank (401) and a piston (410) located in the oil storage tank (401), and an oil injection pipe (403) is provided at the left end of the oil storage tank (401), an opening and closing ball (404) is provided in the oil injection pipe (403), and a through hole (405) is provided on the opening and closing ball (404).

3. An overheat protection device for a generator set transmission mechanism (2) according to claim 2, characterized in that: The oil storage tank (401) is provided with a mounting tube (402), the piston (410) is provided with a sliding rod (411), two groups of symmetrically distributed limiting grooves (412) are provided on both sides of the sliding rod (411), and the sliding rod (411) is slidably connected to the mounting tube (402) through the limiting grooves (412), and a screw rod (413) and a first motor (414) are provided in the mounting tube (402).

4. An overheat protection device for a transmission mechanism (2) of a generator set according to claim 3, characterized in that: The screw rod (413) is rotatably connected to the mounting tube (402) via a bearing, and the screw rod (413) passes through the slide rod (411) and is threadedly connected to the slide rod (411), and one end of the screw rod (413) away from the slide rod (411) is connected to the output end of the first motor (414).

5. An overheat protection device for a transmission mechanism (2) of a generator set according to claim 2, characterized in that: The opening and closing ball (404) is rotatably connected to the oil injection pipe (403) via a mounting shaft (406), and a gear (407) is sleeved on the mounting shaft (406). A cylinder (409) and a rack (408) are provided on the oil injection pipe (403), and the rack (408) is connected to the output end of the piston (410) rod of the cylinder (409), the rack (408) is slidably connected to the oil injection pipe (403), and the rack (408) is meshingly connected to the gear (407).

6. An overheat protection device for a transmission mechanism (2) of a generator set according to claim 1, characterized in that: The circulation mechanism (5) comprises an oil pump (505), the oil pump (505) is connected to the oil storage tank (401) via an oil outlet pipe (501) and an oil inlet pipe (504), and a flow divider plate (502) is embedded in the oil outlet pipe (501), and a plurality of groups of symmetrically distributed flow divider grooves (503) are provided in the flow divider plate (502).

7. An overheat protection device for a transmission mechanism (2) of a generator set according to claim 6, characterized in that: A fixing frame (506) is provided below the diverter plate (502), a fan (507) is installed on the fixing frame (506), two sets of synchronous wheels (508) are provided on the fixing frame (506), a synchronous belt (509) is provided on the fixing frame (506), and a second motor (510) is provided on the fixing frame (506).

8. An overheat protection device for a transmission mechanism (2) of a generator set according to claim 7, characterized in that: The synchronous belt (509) is respectively connected to the two sets of synchronous wheels (508) in a transmission manner, and the right synchronous wheel (508) is connected to the output end of the second motor (510) via a rotating shaft, and the left synchronous wheel (508) is fixedly mounted to the fan (507) via a rotating shaft.

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