Wind power gear box with anti-impact structure

Abstract

The utility model provides a wind power gear box with an anti-impact structure, which comprises a protective shell, a front baffle plate, a partition plate, a rear baffle plate, a driving gear, a first bearing seat, a buffer plate, a change gear and a driven gear, the front baffle plate is arranged on the front end face of the protective shell, the rear baffle plate is arranged on the rear end face of the protective shell, and the partition plate is arranged in the protective shell. A driving gear is rotationally arranged between the partition plate and the front baffle, a driven gear is rotationally arranged between the partition plate and the rear baffle, a variable gear is rotationally arranged between the front baffle and the rear baffle, first bearing seats are arranged at the front end and the rear end of the driving gear, and buffer plates are arranged on the outer side faces of the first bearing seats. By means of the design, the problem that an original wind power gear box cannot relieve external impact force is solved, the wind power gear box is reasonable in structure, the external impact force can be buffered to a certain degree, and therefore the influence of high-altitude unstable airflow on equipment is reduced, and practicability is high.

Description

Technical Field

[0001] The utility model discloses a wind power gear box with an impact-resistant structure, belonging to the technical field of wind power gear boxes. Background Art

[0002] In a wind turbine generator set, since the rotation speed of the wind rotor is very low, far from the rotation speed required for the generator to generate electricity, the speed increase of the wind turbine gearbox must be used to make the generator obtain the corresponding rotation speed. As an important core component, the wind turbine gearbox plays a vital role in wind power equipment. In actual use, the wind rotor and the fan blades are at high altitudes, and the airflow at high altitudes is unstable. When the direction of the airflow changes, it will produce a certain impact force on the fan blades and the wind rotor. When the impact force is large, the internal equipment of the gearbox is damaged, affecting the service life of the equipment. Now there is an urgent need for a wind turbine gearbox with an impact-resistant structure to solve the above problems. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a wind turbine gearbox with an impact-resistant structure to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure and can buffer the external impact force to a certain extent, thereby reducing the impact of unstable airflow at high altitude on the equipment, and has strong practicality.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: a wind turbine gearbox with an impact-resistant structure, comprising a protective shell, a front baffle, a partition, a rear baffle, a driving gear, a first bearing seat, a buffer plate, a speed change gear and a driven gear, the front end face of the protective shell is provided with a front baffle, the rear end face of the protective shell is provided with a rear baffle, a partition is installed inside the protective shell, a driving gear is rotatably arranged between the partition and the front baffle, a driven gear is rotatably arranged between the partition and the rear baffle, a speed change gear is rotatably arranged between the front baffle and the rear baffle, first bearing seats are provided at both front and rear ends of the driving gear, and a buffer plate is provided on the outer side of the first bearing seat.

[0005] Furthermore, the driving gear is provided with extension seats at both the front and rear ends, and the driving gear is rotatably connected to the front baffle and the partition through the extension seat and the first bearing seat respectively.

[0006] Furthermore, a fan shaft hole is formed on the surface of the front baffle plate, and the fan shaft hole is coaxial with the driving gear. A motor shaft hole is formed on the surface of the rear baffle plate, and the motor shaft hole is coaxial with the driven gear.

[0007] Furthermore, the buffer plates are provided in several groups with the same specifications, and shock absorbers are provided on the outer sides of the buffer plates. The buffer plates are fixedly connected to the front baffle plate and the surface of the partition plate respectively through the shock absorbers.

[0008] Furthermore, a positioning hole is opened on the surface of the buffer plate, and positioning columns are arranged on the surfaces of the front baffle plate and the partition plate, and the positioning columns pass through the buffer plate through the positioning hole.

[0009] Furthermore, a buffer spring is sleeved on the annular side surface of the positioning column, and empty grooves are symmetrically opened on the front and rear end surfaces of the driving gear.

[0010] Furthermore, a through hole is opened on the surface of the partition, and the speed gear passes through the partition through the through hole, and both ends of the speed gear are rotatably connected to the front baffle and the rear baffle through a third bearing seat respectively.

[0011] Furthermore, the length of the speed change gear is greater than the sum of the length of the driving gear and the length of the driven gear, and the driven gear is rotatably connected to the partition through a second bearing seat.

[0012] The beneficial effects of the utility model: the utility model is a wind turbine gearbox with an impact-resistant structure. Since the utility model adds a driving gear, a speed gear, a buffer spring, a shock absorber and a positioning column, when the external high-altitude air flow changes, an impact force is generated on the fan blades. The impact force will drive the driving gear to rotate through the motor shaft while moving forward or backward along the surface of the speed gear. While the positioning column compresses the buffer spring in the corresponding direction, the shock absorber is used to absorb the impact force, thereby reducing the influence of the external impact force on the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a schematic diagram of the structure of a wind turbine gearbox with an impact-resistant structure according to the utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of a wind turbine gearbox with an impact-resistant structure according to the utility model;

[0016] Figure 3 This is a schematic diagram of the disassembled structure of a wind turbine gearbox with an impact-resistant structure according to the utility model;

[0017] Figure 4 This is a partial structural schematic diagram of a buffer plate in a wind turbine gearbox with an impact-resistant structure according to the utility model;

[0018] In the figure: 1-protective housing, 11-connecting column, 2-front baffle, 21-fan shaft hole, 3-partition, 31-through hole, 4-rear baffle, 41-motor shaft hole, 5-driving gear, 51-extension seat, 6-first bearing seat, 7-buffer plate, 71-shock absorber, 72-positioning hole, 73-positioning column, 74-buffer spring, 75-empty slot, 8-speed gear, 81-second bearing seat, 9-driven gear, 91-third bearing seat. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] See also Figure 1-Figure 4 The utility model provides a technical solution: a wind power gearbox with an impact-resistant structure, comprising a protective shell 1, a front baffle 2, a partition 3, a rear baffle 4, a driving gear 5, a first bearing seat 6, a buffer plate 7, a speed change gear 8 and a driven gear 9. The front end face of the protective shell 1 is provided with a front baffle 2, the rear end face of the protective shell 1 is provided with a rear baffle 4, a partition 3 is installed inside the protective shell 1, a driving gear 5 is rotatably arranged between the partition 3 and the front baffle 2, a driven gear 9 is rotatably arranged between the partition 3 and the rear baffle 4, a speed change gear 8 is rotatably arranged between the front baffle 2 and the rear baffle 4, a first bearing seat 6 is arranged at both front and rear ends of the driving gear 5, and a buffer plate 7 is arranged on the outer side of the first bearing seat 6. This design solves the problem that the original wind power gearbox cannot alleviate external impact force.

[0021] As the first embodiment of the utility model: the front and rear ends of the driving gear 5 are provided with an extension seat 51, and the driving gear 5 is rotatably connected to the front baffle 2 and the partition 3 through the extension seat 51 and the first bearing seat 6 respectively. The extension seat 51 and the first bearing seat 6 can reduce the friction force when the driving gear 5 rotates while fixing the position of the driving gear 5. The surface of the front baffle 2 is provided with a fan shaft hole 21, and the fan shaft hole 21 is coaxial with the driving gear 5. The fan shaft can be inserted into the inside of the driving gear 5 through the fan shaft hole 21, thereby driving The driving gear 5 rotates together, and a motor shaft hole 41 is opened on the surface of the rear baffle 4. The motor shaft hole 41 is coaxial with the driven gear 9. The motor shaft can be inserted into the gear through the motor shaft hole 41, so as to rotate together with the driven gear 9. The buffer plate 7 is provided with several groups of the same specifications. A shock absorber 71 is provided on the outer side of the buffer plate 7. The buffer plate 7 is fixedly connected to the surface of the front baffle 2 and the partition plate 3 through the shock absorber 71. The shock absorber can absorb the excess elastic potential energy of the buffer spring 74, so as to cooperate with the buffer spring 74 to play a buffering and shock absorbing role. For the purpose, a positioning hole 72 is provided on the surface of the buffer plate 7, and a positioning column 73 is provided on the surface of the front baffle plate 2 and the partition plate 3. The positioning column 73 passes through the buffer plate 7 through the positioning hole 72. The positioning hole 72 and the positioning column 73 make the driving gear 5 more stable when moving forward and backward. A buffer spring 74 is sleeved on the annular side of the positioning column 73. The front and rear end surfaces of the driving gear 5 are symmetrically provided with empty grooves 75. The empty grooves 75 provide displacement space for the positioning column 73 when it extends. A through hole 31 is provided on the surface of the partition plate 3, and the speed change gear 8 passes through the through hole 31. The speed gear 8 passes through the partition 3, and both ends of the speed gear 8 are rotatably connected to the front baffle 2 and the rear baffle 4 through the third bearing seat 91 respectively. The third bearing seat 91 can reduce the friction force during its rotation while fixing the speed gear 8. The length of the speed gear 8 is greater than the sum of the length of the driving gear 5 and the length of the driven gear 9. The driven gear 9 is rotatably connected to the partition 3 through the second bearing seat 81. This design allows the driving gear 5 to drive the driven gear 9 to rotate through the speed gear 8, while the driving gear 5 can slide back and forth along the surface of the speed gear 8.

[0022] As a second embodiment of the utility model: the user inserts the fan shaft into the driving gear 5 through the fan shaft hole 21, and inserts the motor shaft into the driven gear 9 through the motor shaft hole 41. When the fan blade drives the fan to rotate, the fan drives the driving gear 5 to rotate through the fan shaft. Since the driving gear 5 and the speed gear 8 are meshed with each other, the rotation of the driving gear 5 drives the speed gear 8 to rotate. Since the radius of the speed gear 8 is smaller than the radius of the driving gear 5, the speed of the speed gear 8 is faster than the speed of the driving gear 5. At the same time, since the speed gear 8 and the driven gear 9 are meshed with each other, the rotation of the speed gear 8 drives the driven gear 9 to rotate, and the driven gear 9 drives the motor shaft to rotate coaxially, thereby generating electricity. When the external high-altitude air flow changes, an impact force is generated on the fan blades of the fan. The impact force will drive the driving gear 5 to rotate through the motor shaft while moving forward or backward along the surface of the speed gear 8. While the positioning column 73 compresses the buffer spring 74 in the corresponding direction, the shock absorber 71 is cooperated to absorb the impact force, thereby reducing the impact of the external impact force on the equipment.

[0023] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wind turbine gearbox with an impact-resistant structure, comprising a protective housing, a front baffle, a partition, a rear baffle, a driving gear, a first bearing seat, a buffer plate, a speed change gear and a driven gear, characterized in that: A front baffle is provided on the front end face of the protective shell, a rear baffle is provided on the rear end face of the protective shell, a partition is installed inside the protective shell, a driving gear is rotatably provided between the partition and the front baffle, a driven gear is rotatably provided between the partition and the rear baffle, a speed change gear is rotatably provided between the front baffle and the rear baffle, first bearing seats are provided at both front and rear ends of the driving gear, and a buffer plate is provided on the outer side of the first bearing seat.

2. The wind turbine gearbox with an impact-resistant structure according to claim 1, characterized in that: The front and rear ends of the driving gear are both provided with extension seats, and the driving gear is rotatably connected to the front baffle and the partition through the extension seat and the first bearing seat respectively.

3. The wind turbine gearbox with an impact-resistant structure according to claim 1, characterized in that: A fan shaft hole is provided on the surface of the front baffle plate, and the fan shaft hole is coaxial with the driving gear. A motor shaft hole is provided on the surface of the rear baffle plate, and the motor shaft hole is coaxial with the driven gear.

4. The wind turbine gearbox with an impact-resistant structure according to claim 1, characterized in that: The buffer plates are provided in a plurality of groups with the same specifications. Shock absorbers are provided on the outer sides of the buffer plates. The buffer plates are fixedly connected to the front baffle plate and the surface of the partition plate respectively through the shock absorbers.

5. The wind turbine gearbox with an impact-resistant structure according to claim 1, characterized in that: A positioning hole is opened on the surface of the buffer plate, and positioning columns are arranged on the surfaces of the front baffle plate and the partition plate. The positioning columns pass through the buffer plate through the positioning holes.

6. The wind turbine gearbox with an impact-resistant structure according to claim 5, characterized in that: The annular side surface of the positioning column is sleeved with a buffer spring, and the front and rear end surfaces of the driving gear are symmetrically provided with empty grooves.

7. The wind turbine gearbox with an impact-resistant structure according to claim 1, characterized in that: A through hole is opened on the surface of the partition, and the speed gear passes through the partition through the through hole. Both ends of the speed gear are rotatably connected to the front baffle and the rear baffle through the third bearing seat respectively.

8. The wind turbine gearbox with an impact-resistant structure according to claim 1, characterized in that: The length of the speed change gear is greater than the sum of the length of the driving gear and the length of the driven gear, and the driven gear is rotatably connected to the partition through the second bearing seat.

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