Wind turbine generator unit gear box flow divider with better sealing

Abstract

The utility model discloses a wind generating set gear box flow divider with better sealing, including distributor, the one side top of distributor is installed with valve seat, the top of valve seat is installed with valve cover, the inside of valve seat still is installed with the valve core of top end extension to the outside of valve cover, the outside of valve core is equipped with valve support, executor, the outside of valve core top is equipped, and the bottom is connected with valve support top, sensor subassembly is installed in the one side top of distributor away from valve seat, the utility model discloses through using first O -ring, and the second O -ring forms the soft sealing, and cooperate first support ring, second support ring, third support ring, and the hard sealing of fourth support ring is formed, so that valve core has more excellent sealing performance when using, thereby make the bearing in the gear box flow divider and the meshing point between gear get sufficient lubrication and cooling, avoid local dry friction, overheat, have improved the service life of gear box flow divider.

Description

Technical Field

[0001] This utility model specifically relates to a wind turbine generator gearbox splitter with better sealing. Background Technology

[0002] In wind turbine generator sets, the main function of the gearbox distributor is to precisely distribute the single flow of hydraulic fluid supplied by the pump to multiple independent hydraulic circuits. Its core lies in multiple meshing gear pairs, each pair acting like a miniature gear pump or motor. They achieve synchronous rotation through coaxial alignment or mechanical linkage, thus "meshing" the input hydraulic fluid into almost equal portions and pushing them out of their respective outlets, achieving equal flow distribution. The gearbox is a widely used and crucial mechanical component in wind turbine generator sets. However, when gearbox splitters are currently used in wind turbine generator sets, there is a lack of proper sealing between the valve seat and the valve core. This results in insufficient lubrication and cooling between the bearing and the gear meshing point, causing localized dry friction, overheating, and a short service life.

[0003] Therefore, it is necessary to invent a wind turbine gearbox splitter with better sealing to solve the above problems. Utility Model Content

[0004] (a) Purpose of the utility model To address the technical problems existing in the background art, this utility model proposes a wind turbine generator gearbox splitter with better sealing. Compared with simple rubber soft seals, polyamide or other metal hard seals, it has better sealing performance, which can ensure sufficient lubrication and cooling between the bearings and gear meshing points in the gearbox splitter, avoid local dry friction and overheating, and improve the service life of the gearbox splitter.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a wind turbine generator gearbox splitter with good sealing, including a distributor, a valve seat is installed on the top of one side of the distributor, a valve cover is installed on the top of the valve seat, a valve core with its top extending to the outside of the valve cover is also installed inside the valve seat, and a valve bracket is sleeved on the outside of the valve core. The actuator is sleeved on the outer side of the top of the valve core, and its bottom is connected to the top of the valve bracket; The sensor assembly is mounted on the top of the distributor on the side away from the valve seat; Sealing components are distributed on the outside of the valve core, and on the top and top of the valve seat.

[0006] Preferably, the valve bracket is configured as an electric valve bracket, and its bottom is connected to the valve cover.

[0007] Preferably, the sealing assembly includes a first support ring mounted on the bottom of the valve core and in contact with the top of the distributor; The second support ring is installed inside the inner wall of the valve seat and in contact with the outer side of the valve core; A third support ring is installed inside the inner wall of the valve cover and in contact with the outer side of the valve core; A first O-ring is installed on the top of the distributor and in contact with the bottom of the valve seat; A second O-ring is installed at the bottom of the valve cover and in contact with the top of the valve seat.

[0008] Preferably, there are two second support rings, which are respectively distributed at the top opening and the bottom opening of the valve seat, and there are two third support rings, which are respectively distributed at the top opening and the bottom opening of the valve cover.

[0009] Preferably, the valve core has a beveled section on the outer surface of the top opening of the valve seat, and a fourth support ring is sleeved on the outer side of the beveled section, with the top of the fourth support ring contacting the bottom of the valve cover.

[0010] Preferably, the sensor assembly includes a temperature sensor and a pressure sensor arranged side by side on the top of the dispenser.

[0011] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are: This invention utilizes a soft seal formed by a first O-ring and a second O-ring, combined with a hard seal formed by a first support ring, a second support ring, a third support ring, and a fourth support ring. This results in multiple seals between the valve core and the distributor, between the valve core and the valve cover, and between the valve core and the valve core during use. Under the protection of the sealing components, the valve core not only has sufficient support strength but also a zero-leakage sealed working environment. Moreover, the sealing effect is superior to that of simple rubber soft seals, polyamide, or other metal hard seals. This ensures sufficient lubrication and cooling between the bearings and gear meshing points within the gearbox distributor, preventing localized dry friction and overheating, and improving the service life of the gearbox distributor. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a perspective view of the present utility model; Figure 3 This is a front sectional view of the present invention; Figure 4 This utility model Figure 3 Enlarged view of the structure of part A.

[0013] Explanation of reference numerals in the attached figures: 1. Distributor, 2. Valve seat, 21. Valve cover, 3. Valve core, 4. Valve bracket, 5. Actuator, 61. Temperature sensor, 62. Pressure sensor; 71 First support ring, 72 Second support ring, 73 Third support ring, 74 First O-ring, 75 Second O-ring, 76 Fourth support ring. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0015] This utility model provides, for example Figure 1-4 The wind turbine gearbox splitter shown includes a distributor 1, a valve seat 2 is installed on the top of one side of the distributor 1, a valve cover 21 is installed on the top of the valve seat 2, a valve core 3 with its top extending to the outside of the valve cover 21 is also installed inside the valve seat 2, and a valve bracket 4 is sleeved on the outside of the valve core 3. Actuator 5 is sleeved on the outer side of the top of valve core 3, and its bottom is connected to the top of valve bracket 4; The sensor assembly is mounted on the top of the distributor 1 on the side away from the valve seat 2; A sealing assembly is distributed on the outer side of the valve core 3 and the top and bottom of the valve seat 2. The sealing assembly includes a first support ring 71 installed on the bottom of the valve core 3 and in contact with the top of the distributor 1, a second support ring 72 installed on the inner wall of the valve seat 2 and in contact with the outer side of the valve core 3, a third support ring 73 installed on the inner wall of the valve cover 21 and in contact with the outer side of the valve core 3, a first O-ring 74 installed on the top of the distributor 1 and in contact with the bottom of the valve seat 2, and a second O-ring 75 installed on the bottom of the valve cover 21 and in contact with the top of the valve seat 2.

[0016] In one embodiment, the valve bracket 4 is configured as an electric valve bracket 4, and its bottom is connected to the valve cover 21, which facilitates the operation and use of the valve bracket 4 by the staff, thereby facilitating the use of the wind turbine generator gearbox splitter.

[0017] In one embodiment, two second support rings 72 are provided, respectively distributed at the top opening and bottom opening of the valve seat 2, and two third support rings 73 are provided, respectively distributed at the top opening and bottom opening of the valve cover 21, so that the sealing means between the valve core 3 and the valve seat 2, and between the valve core 3 and the valve cover 21 are diverse and arranged in multiple places, resulting in a better sealing effect.

[0018] In one embodiment, the valve core 3 has a beveled section on the outer surface of the top opening of the valve seat 2, and a fourth support ring 76 is sleeved on the outer side of the beveled section. The top of the fourth support ring 76 contacts the bottom of the valve cover 21, which further improves the sealing between the valve cover 21 and the valve core 3, thereby creating a zero-leakage sealing environment for the valve core 3, which is beneficial to the use of the valve core 3.

[0019] In one embodiment, the sensor assembly includes a temperature sensor 61 and a pressure sensor 62 arranged in parallel. The temperature sensor 61 is model HX-RS-HBW2260, which has good shock resistance, can make close contact with the bearing surface, and can measure up to 450°C with a large safety margin. It can be used in the gearbox splitter of a wind turbine generator set. The pressure sensor 62 is model Danfoss MBS3050, which has a built-in pulse buffer, can withstand overload pressure of 6 times the full scale, can cope with oil pressure spikes, has a typical accuracy of 0.5%, low thermal drift, and performs well in low temperature or large temperature difference environments. It can also be used in the gearbox splitter of a wind turbine generator set.

[0020] The specific implementation method is as follows: When this utility model is used, the first O-ring 74 and the second O-ring 75 are both made of rubber layer, and the first support ring 71, the second support ring 72, the third support ring 73 and the fourth support ring 76 are all made of polyamide layer. The above materials all have good oil resistance, high temperature resistance and aging resistance, and can be adapted to the use of wind turbine generator gearbox splitter. Specifically, by setting a first O-ring 74 between the contact surfaces of the distributor 1 and the valve seat 2, and setting a second O-ring 75 between the contact surfaces of the valve seat 2 and the valve cover 21, when the valve core 3 closes and presses against the valve seat 2, the first O-ring 74 and the second O-ring 75 are compressed into the receiving groove and undergo elastic deformation, filling the gap between the valve seat 2, the valve cover 21, and the distributor 1, forming a tight seal, which can effectively prevent the leakage of liquid or gas, greatly improving the sealing performance of the bottom and top of the valve seat 2, and creating a sealed environment inside the valve seat 2; The arrangement of the first support ring 71, the second support ring 72, and the third support ring 73 effectively supports the valve core 3, the distributor 1, the valve core 3, and the valve cover 21, reducing the gap and improving the sealing performance. At the same time, the first support ring 71, the second support ring 72, and the third support ring 73 will not be squeezed out or blown out during the use of the wind turbine gearbox distributor, and can adapt to high pressure differential conditions. While providing mechanical support for the valve core 3, they prevent high pressure medium from squeezing into the gaps of the valve core 3. In summary, this wind turbine gearbox splitter uses a soft seal formed by the first O-ring 74 and the second O-ring 75, and a hard seal formed by the first support ring 71, the second support ring 72, the third support ring 73, and the fourth support ring 76. This allows for multiple seals between the valve core 3 and the valve seat 2 and the distributor 1, between the valve seat 2 and the valve cover 21, and between the valve core 3 and the valve seat 2 during use. Under the protection of the sealing components, the valve core 3 not only has sufficient support strength but also a zero-leakage sealed working environment. Moreover, the sealing effect is superior to that of simple rubber soft seals, polyamide, or other metal hard seals. This ensures that the bearings and gear meshing points inside the gearbox splitter are adequately lubricated and cooled, avoiding local dry friction and overheating, and improving the service life of the gearbox splitter. This embodiment specifically solves the problem in the prior art where, when the gearbox splitter is used in wind turbine generator sets, there is a lack of sealing between the valve seat 2 and the valve core 3, which results in insufficient lubrication and cooling between the bearing and the gear meshing point, causing local dry friction, overheating, and a short service life.

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used above are only some embodiments recorded in this utility model. Obviously, those skilled in the art can obtain other drawings based on these drawings.

[0022] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A wind turbine generator gearbox splitter with good sealing, characterized in that, include: Distributor (1), a valve seat (2) is installed on the top of one side of the distributor (1), a valve cover (21) is installed on the top of the valve seat (2), a valve core (3) with its top end extending to the outside of the valve cover (21) is also installed inside the valve seat (2), and a valve bracket (4) is sleeved on the outside of the valve core (3). The actuator (5) is sleeved on the outside of the top of the valve core (3) and its bottom is connected to the top of the valve bracket (4); The sensor assembly is mounted on the top of the distributor (1) on the side away from the valve seat (2); Sealing components are distributed on the outside of the valve core (3) and on the top and top of the valve seat (2).

2. The wind turbine generator gearbox splitter with good sealing according to claim 1, characterized in that: The valve support (4) is configured as an electric valve support (4), and its bottom is connected to the valve cover (21).

3. A wind turbine generator gearbox splitter with good sealing as described in claim 1, characterized in that: The sealing assembly includes a first support ring (71) installed at the bottom of the valve core (3) and in contact with the top of the distributor (1); The second support ring (72) is installed inside the inner wall of the valve seat (2) and in contact with the outer side of the valve core (3); The third support ring (73) is installed inside the inner wall of the valve cover (21) and in contact with the outer side of the valve core (3); The first O-ring (74) is installed on the top of the distributor (1) and in contact with the bottom of the valve seat (2); The second O-ring (75) is installed at the bottom of the valve cover (21) and in contact with the top of the valve seat (2).

4. A wind turbine generator gearbox splitter with good sealing as described in claim 3, characterized in that: Two second support rings (72) are provided, and they are respectively distributed at the top opening and bottom opening of the valve seat (2). Two third support rings (73) are provided, and they are respectively distributed at the top opening and bottom opening of the valve cover (21).

5. A wind turbine generator gearbox splitter with good sealing according to claim 3, characterized in that: The valve core (3) has a beveled section on the outer surface of the top opening of the valve seat (2), and a fourth support ring (76) is sleeved on the outer side of the beveled section. The top of the fourth support ring (76) is in contact with the bottom of the valve cover (21).

6. A wind turbine generator gearbox splitter with good sealing according to claim 1, characterized in that: The sensor assembly includes a temperature sensor (61) and a pressure sensor (62) arranged side by side on the top of the distributor (1).

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