Variable pitch cabinet
By designing a structure that supports the base plate, mounting block and spring shock absorber in the pitch cabinet, the impact force is converted into elastic deformation to absorb energy, and the problem of external impact force received by the pitch cabinet during use is solved, achieving the effect of reducing vibration and ensuring the normal use of internal components.
Patent Information
- Application Number
- CN202421362488.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The pitch cabinet is susceptible to external impact during use, resulting in abnormal use of internal components.
A pitch cabinet is designed to transmit impact force to the spring shock absorber through the connection between the support base plate and the mounting block. The spring shock absorber absorbs movement energy through elastic deformation, reduces vibration, and consumes mechanical energy through the damper to gradually slow down and stop it.
It effectively reduces the vibration and impact force of the pitch cabinet during use, ensures the normal use of internal components, and improves the safety of the pitch cabinet.
Smart Images
Figure CN222827476U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of variable pitch cabinets, in particular to a variable pitch cabinet. Background Art
[0002] The variable pitch system is an important component of the variable speed and variable pitch wind turbine. When the wind speed is above the rated wind speed of the wind turbine, it achieves stable output of the unit power by adjusting the pitch angle of the blades. At the same time, the variable pitch system also plays a vital role in the safe operation of the wind turbine. Therefore, the stable operation and maintenance of the variable pitch system is an important guarantee for the continuous power output of the wind turbine.
[0003] The pitch cabinet is part of the pitch system and is also an important component of the wind turbine. It is mainly responsible for controlling the wind rotor speed, adjusting the blade angle, etc. to ensure the safe operation and efficient power generation of the wind turbine.
[0004] Due to the requirements of the installation and use environment of the pitch cabinet, it is necessary to reduce the external impact force on the pitch cabinet during use and to ensure the normal use of the components inside the pitch cabinet. Utility Model Content
[0005] In view of the above problems, the purpose of the utility model is to provide a variable pitch cabinet to solve the need to reduce the external impact force on the variable pitch cabinet during use, and to ensure the normal use of the components inside the variable pitch cabinet. When the supporting base plate is subjected to the impact force of the cabinet body assembly, the supporting base plate transmits the impact force to the spring shock absorber through the connected mounting block. The spring shock absorber absorbs the kinetic energy through elastic deformation to reduce vibration, and the damper consumes mechanical energy and gradually slows down and stops it.
[0006] To achieve the above objectives, the utility model adopts the following technical solution: a variable pitch cabinet, comprising a cabinet assembly, a heat dissipation assembly, a base assembly, and a shock absorbing assembly, wherein the cabinet assembly comprises a cabinet box, the heat dissipation assembly comprises an exhaust fan, an air supply pipe, and a mounting pipe, the base assembly comprises a base and a positioning pipe, the shock absorbing assembly comprises a supporting bottom plate and a mounting block, the lower end of the cabinet box is connected with a mounting seat, the inner wall of the top of the cabinet box is connected with a smoke alarm, the inner wall of the cabinet box is symmetrically connected with a partition plate, the outer wall of the cabinet box is connected with a temperature and humidity detector, the output end of the exhaust fan is connected with an exhaust pipe, one end of the exhaust fan is connected with an exhaust pipe, an exhaust fan is arranged on the inner side of the air supply pipe, a filter is arranged on the inner side of the mounting pipe, a mounting clamp is connected to one end of the mounting pipe, a buffer pad is arranged on the inner side of the top of the base, a sliding rod is arranged on the inner side of the positioning pipe, a compression spring is connected to the inner wall of the positioning pipe, and a spring shock absorber is connected to one end of the mounting block.
[0007] The beneficial effects of the utility model are as follows: when the supporting base plate is subjected to the impact force of the cabinet assembly, the supporting base plate transmits the impact force to the spring shock absorber through the connected mounting block, the spring shock absorber absorbs the kinetic energy through elastic deformation to reduce vibration, and at the same time the damper consumes mechanical energy and gradually slows down and stops it. The supporting base plate is provided to be installed and connected with the mounting seat, and the buffer pad is provided to prevent the mounting seat from colliding and wearing with the base when shaking.
[0008] In order to allow the gas inside the cabinet to be extracted by the exhaust pipe:
[0009] As a further improvement of the above technical solution: the front end of the cabinet box is rotatably connected to the cabinet door, the two ends of the cabinet box are symmetrically connected to side bottom plates, and the inner side of the partition plate is provided with a breathable net.
[0010] The beneficial effects of this improvement are as follows: through the setting of the side bottom plate, it is used to fix and support the exhaust fan, through the setting of the mounting base, it is used to assemble and connect with the supporting bottom plate, and through the setting of the air-permeable net, the gas inside the cabinet box can be extracted by the exhaust pipe.
[0011] In order to improve the safety of the pitch cabinet during use:
[0012] As a further improvement of the above technical solution: the detection probe of the temperature and humidity detector passes through the wall of the partition plate and extends to the inner side of the cabinet box, the probe of the temperature and humidity detector is connected to the wall of the partition plate through a clamping ring, and the smoke alarm is electrically connected to the fire alarm controller.
[0013] The beneficial effects of this improvement are: when the smoke alarm is working, the radiation intensity of the ionization chamber inside is 0.8 microcurie of Am241. Under normal conditions, the electric field inside the ionization chamber is in a balanced state. When smoke enters the ionization chamber, this balanced relationship is destroyed. When the alarm circuit detects that the concentration exceeds the set threshold, an alarm is issued. The temperature and humidity detector is used to detect the temperature and humidity inside the cabinet box, thereby realizing the detection of the temperature and humidity of the variable pitch cabinet. At the same time, the coordinated use of the temperature and humidity detector and the smoke alarm can improve the safety of the variable pitch cabinet when in use.
[0014] In order to discharge the gas inside the cabinet:
[0015] As a further improvement of the above technical solution: there are two exhaust fans in total and they are electrically connected to the operation panel. The two exhaust fans are symmetrically installed at both ends of the cabinet box. The end of the exhaust pipe away from the exhaust fan passes through the cabinet box wall and extends to the inner side of the cabinet box.
[0016] The beneficial effect of this improvement is that after the exhaust fan is started, the gas in the cabinet box is transported to the exhaust pipe through the exhaust pipe, and then transported to the outside through the exhaust pipe, thereby achieving the discharge of the gas in the cabinet box.
[0017] In order to dissipate heat inside the cabinet:
[0018] As a further improvement of the above technical solution: a threaded hole is opened on the inner side of the mounting clamp, the mounting clamp is connected to the cabinet box by bolts, the exhaust fan is electrically connected to the operation panel, and the end of the air supply duct away from the exhaust fan passes through the cabinet box wall and the partition plate in sequence and extends to the inner side of the cabinet box.
[0019] The beneficial effect of this improvement is that after the exhaust fan is started, the gas flows into the air supply pipe after being filtered by the filter, and the installation pipe is connected to the cabinet box through the setting of the installation clamp ring, and then the gas is transported to the inside of the cabinet box through the air supply pipe to dissipate heat inside the cabinet box.
[0020] To prevent the mount from colliding and wearing with the base when it shakes:
[0021] As a further improvement of the above technical solution: a clearance groove for installing the mounting seat is opened on the top of the base, and the bottom of the mounting seat passes through the clearance groove and is installed on the top of the supporting base plate.
[0022] The beneficial effects of this improvement are: through the provision of a supporting base plate, it is used to be installed and connected with the mounting seat, and through the provision of a buffer pad, it is used to prevent the mounting seat from colliding and wearing with the base when shaking.
[0023] In order to support the bottom plate to exert force on the sliding rod during the shaking process:
[0024] As a further improvement of the above technical solution: one end of the sliding rod is connected to a limiting ring, the end of the limiting ring away from the sliding rod is connected to a compression spring, and the end of the sliding rod away from the limiting ring is connected to the outer wall of the supporting base plate.
[0025] The beneficial effect of this improvement is that when the supporting base plate shakes, the supporting base plate generates a force on the sliding rod during the shaking process, and the sliding rod moves due to the force, and in this process, the compression spring generates elastic deformation through the limiting ring.
[0026] In order for the spring shock absorber to absorb the kinetic energy through elastic deformation and reduce vibration:
[0027] As a further improvement of the above technical solution: both ends of the spring shock absorber are connected with mounting blocks, the mounting blocks at both ends of the spring shock absorber are respectively connected to the bottom of the supporting base plate and the inner wall of the lower bottom surface of the base, and the spring shock absorber includes a damper.
[0028] The beneficial effect of this improvement is that when the supporting base plate is subjected to the impact force of the cabinet assembly, the supporting base plate transmits the impact force to the spring shock absorber through the connected mounting block. The spring shock absorber absorbs the kinetic energy through elastic deformation to reduce vibration, while the damper consumes mechanical energy and gradually slows down and stops it. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a front cross-sectional structural schematic diagram of the utility model.
[0030] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.
[0031] Figure 3 It is a three-dimensional structural schematic diagram of the cabinet box of the utility model.
[0032] Figure 4 It is a schematic diagram of the cross-sectional structure of the positioning tube of the utility model.
[0033] Figure 5 It is a three-dimensional structural schematic diagram of the partition plate of the utility model.
[0034] Figure 6 It is a structural schematic diagram of the installation pipe of the utility model.
[0035] Figure 7 It is a structural schematic diagram of the base of the utility model.
[0036] In the figure: 1. cabinet assembly; 11. cabinet box; 12. mounting base; 13. cabinet door; 14. side bottom plate; 15. smoke alarm; 16. partition plate; 17. breathable net; 18. temperature and humidity detector; 2. heat dissipation assembly; 21. exhaust fan; 22. exhaust pipe; 23. exhaust pipe; 24. air supply pipe; 25. exhaust fan; 26. mounting pipe; 27. filter net; 28. mounting clamp; 3. base assembly; 31. base; 32. buffer pad; 33. positioning pipe; 34. sliding rod; 35. limit ring; 36. compression spring; 4. shock absorbing assembly; 41. supporting bottom plate; 42. mounting block; 43. spring shock absorber. DETAILED DESCRIPTION
[0037] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.
[0038] like Figure 1-7As shown, a pitch cabinet includes a cabinet assembly 1, a heat dissipation assembly 2, a base assembly 3, and a shock absorbing assembly 4. The cabinet assembly 1 includes a cabinet box 11, the heat dissipation assembly 2 includes an exhaust fan 21, an air supply pipe 24, and a mounting pipe 26, the base assembly 3 includes a base 31 and a positioning pipe 33, the shock absorbing assembly 4 includes a supporting bottom plate 41 and a mounting block 42, the lower end of the cabinet box 11 is connected to a mounting seat 12, and the inner wall of the top of the cabinet box 11 is connected to a smoke alarm 15. The inner wall of the cabinet box 11 is symmetrically connected with a partition plate 16, the outer wall of the cabinet box 11 is connected with a temperature and humidity detector 18, the output end of the exhaust fan 21 is connected with an exhaust pipe 23, one end of the exhaust fan 21 is connected with an exhaust pipe 22, the inner side of the air supply pipe 24 is provided with an exhaust fan 25, the inner side of the mounting pipe 26 is provided with a filter screen 27, one end of the mounting pipe 26 is connected with a mounting clamp 28, and the inner side of the top of the base 31 is provided with a buffer pad 32. A sliding rod 34 is arranged on the inner side of the positioning tube 33, a compression spring 36 is connected to the inner wall of the positioning tube 33, a spring shock absorber 43 is connected to one end of the mounting block 42, the front end of the cabinet box 11 is rotatably connected to the cabinet door 13, the two ends of the cabinet box 11 are symmetrically connected to the side bottom plate 14, and a ventilation net 17 is provided on the inner side of the partition plate 16; the side bottom plate 14 is arranged to fix and support the exhaust fan 21, and the mounting seat 12 is arranged to be connected to the support The bottom plate 41 is assembled and connected. Through the setting of the air permeable net 17, the gas in the cabinet box 11 can be extracted by the exhaust pipe 23. The detection probe of the temperature and humidity detector 18 penetrates the wall of the partition plate 16 and extends to the inner side of the cabinet box 11. The probe of the temperature and humidity detector 18 is connected to the wall of the partition plate 16 through a clamp ring. The smoke alarm 15 is electrically connected to the fire alarm controller; when the smoke alarm 15 is working, the radiation intensity of the ionization chamber inside is 0.8 microcuries of Am241, the electric field in the ionization chamber is in a balanced state under normal conditions. When smoke enters the ionization chamber, this equilibrium relationship is destroyed. When the alarm circuit detects that the concentration exceeds the set threshold, it will sound an alarm. The temperature and humidity detector 18 is used to detect the temperature and humidity inside the cabinet box 11, so as to detect the temperature and humidity of the variable pitch cabinet. At the same time, the coordinated use of the temperature and humidity detector 18 and the smoke alarm 15 can improve the safety of the variable pitch cabinet when in use. There are two exhaust fans 21 and they are electrically connected to the operation panel. The two exhaust fans 21 are symmetrically installed at both ends of the cabinet box 11. The end of the exhaust pipe 23 away from the exhaust fan 21 passes through the wall of the cabinet box 11 and extends to the inside of the cabinet box 11; start After the operation of the dynamic exhaust fan 21, the gas in the cabinet box 11 is transported to the exhaust pipe 22 through the exhaust pipe 23, and then transported to the outside through the exhaust pipe 22, so as to discharge the gas in the cabinet box 11. A threaded hole is provided on the inner side of the mounting clamp 28, and the mounting clamp 28 is connected to the cabinet box 11 by bolts. The exhaust fan 25 is electrically connected to the operation panel, and the end of the air supply pipe 24 away from the exhaust fan 25 passes through the wall of the cabinet box 11 and the partition plate 16 in sequence and extends to the inner side of the cabinet box 11; after the operation of the exhaust fan 25 is started, the gas flows into the air supply pipe 24 after being filtered by the filter screen 27. The mounting clamp 28 is set to connect the mounting pipe 26 to the cabinet box 11, and then the gas passes through The air supply pipe 24 is delivered to the inner side of the cabinet box 11 for heat dissipation inside the cabinet box 11. A clearance groove for installing the mounting seat 12 is provided on the top of the base 31. The bottom of the mounting seat 12 passes through the clearance groove and is installed on the top of the support bottom plate 41; the support bottom plate 41 is provided for installation and connection with the mounting seat 12, and the buffer pad 32 is provided for preventing the mounting seat 12 from colliding and wearing with the base 31 when shaking. One end of the sliding rod 34 is connected to a limiting ring 35, and the end of the limiting ring 35 away from the sliding rod 34 is connected to a compression spring 36, and the end of the sliding rod 34 away from the limiting ring 35 is connected to the outer wall of the support bottom plate 41; when the support bottom plate 41 shakes, the support The bottom plate 41 exerts a force on the sliding rod 34 during the shaking process, and the sliding rod 34 moves under the force, and in this process, the compression spring 36 is elastically deformed through the limit ring 35. Both ends of the spring shock absorber 43 are connected with mounting blocks 42. The mounting blocks 42 at both ends of the spring shock absorber 43 are respectively connected to the bottom of the supporting bottom plate 41 and the inner wall of the bottom surface of the base 31. The spring shock absorber 43 includes a damper; when the supporting bottom plate 41 is subjected to the impact force of the cabinet assembly 1, the supporting bottom plate 41 transmits the impact force to the spring shock absorber 43 through the connected mounting blocks 42. The spring shock absorber 43 absorbs the motion energy through elastic deformation to reduce vibration, and the damper consumes mechanical energy and causes it to gradually slow down and stop. .
[0039] The working principle of the utility model is as follows: when in use, after the exhaust fan 25 is started, the gas flows into the air supply pipe 24 after being filtered by the filter screen 27, and the installation pipe 26 is connected to the cabinet box 11 through the installation clamp ring 28, and then the gas is transported to the inside of the cabinet box 11 through the air supply pipe 24, which is used to dissipate heat in the cabinet box 11. After the exhaust fan 21 is started, the gas in the cabinet box 11 is transported to the exhaust pipe 22 through the exhaust pipe 23, and then transported to the outside through the exhaust pipe 22, so as to achieve For the emission of gas in the cabinet box 11, when the smoke alarm 15 is working, the radiation intensity of the ionization chamber inside is 0.8 microcurie of Am241. Under normal conditions, the electric field in the ionization chamber is in a balanced state. When smoke enters the ionization chamber, this balance relationship is destroyed. When the alarm circuit detects that the concentration exceeds the set threshold, an alarm is issued. The temperature and humidity detector 18 is used to detect the temperature and humidity inside the cabinet box 11 to detect the temperature and humidity of the variable pitch cabinet. At the same time, the temperature and humidity detector 18 and the smoke alarm 1 5 can improve the safety of the variable pitch cabinet when in use. When the support bottom plate 41 shakes, the support bottom plate 41 generates a force on the sliding rod 34 during the shaking process, and the sliding rod 34 moves under the force, and in this process, the compression spring 36 is elastically deformed through the limit ring 35. When the support bottom plate 41 is subjected to the impact force of the cabinet assembly 1, the support bottom plate 41 transmits the impact force to the spring shock absorber 43 through the connected mounting block 42. The spring shock absorber 43 absorbs the movement energy through elastic deformation to reduce vibration. At the same time, the damper consumes mechanical energy and gradually slows down and stops it. Through the setting of the supporting base plate 41, it is used to be installed and connected with the mounting base 12. Through the setting of the buffer pad 32, it is used to prevent the mounting base 12 from colliding and wearing with the base 31 when shaking. Through the setting of the side bottom plate 14, it is used to fix and support the exhaust fan 21. Through the setting of the mounting base 12, it is used to be assembled and connected with the supporting base plate 41. Through the setting of the breathable net 17, the gas in the cabinet box 11 can be extracted by the exhaust pipe 23.
[0040] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0041] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.
Claims
1. A pitch cabinet, comprising a cabinet assembly (1), a heat dissipation assembly (2), a base assembly (3), and a shock absorbing assembly (4), wherein the cabinet assembly (1) comprises a cabinet box (11), the heat dissipation assembly (2) comprises an exhaust fan (21), an air supply pipe (24), and a mounting pipe (26), the base assembly (3) comprises a base base (31), a positioning pipe (33), and the shock absorbing assembly (4) comprises a supporting bottom plate (41) and a mounting block (42), characterized in that: The lower end of the cabinet box (11) is connected to a mounting seat (12), the inner wall of the top of the cabinet box (11) is connected to a smoke alarm (15), the inner wall of the cabinet box (11) is symmetrically connected to a partition plate (16), the outer wall of the cabinet box (11) is connected to a temperature and humidity detector (18), the output end of the exhaust fan (21) is connected to an exhaust pipe (23), one end of the exhaust fan (21) is connected to an exhaust pipe (22), and the air supply pipe (24) is connected to a heat exchanger (25). An exhaust fan (25) is arranged on the inner side of the mounting tube (26), a filter screen (27) is arranged on the inner side of the mounting tube (26), one end of the mounting tube (26) is connected to a mounting clamp (28), a buffer pad (32) is arranged on the inner side of the top of the base (31), a sliding rod (34) is arranged on the inner side of the positioning tube (33), a compression spring (36) is connected to the inner wall of the positioning tube (33), and one end of the mounting block (42) is connected to a spring shock absorber (43).
2. A pitch cabinet according to claim 1, characterized in that: The front end of the cabinet box (11) is rotatably connected to a cabinet door (13), the two ends of the cabinet box (11) are symmetrically connected to side bottom plates (14), and a breathable net (17) is provided on the inner side of the partition plate (16).
3. A pitch cabinet according to claim 1, characterized in that: The detection probe of the temperature and humidity detector (18) penetrates the wall of the partition plate (16) and extends to the inner side of the cabinet box (11); the probe of the temperature and humidity detector (18) is connected to the wall of the partition plate (16) via a clamping ring; and the smoke alarm (15) is electrically connected to the fire alarm controller.
4. A pitch cabinet according to claim 1, characterized in that: There are two exhaust fans (21) in total and they are electrically connected to the operation panel. The two exhaust fans (21) are symmetrically mounted at two ends of the cabinet box (11). One end of the exhaust pipe (23) away from the exhaust fan (21) penetrates the wall of the cabinet box (11) and extends to the inner side of the cabinet box (11).
5. The pitch cabinet according to claim 1, characterized in that: A threaded hole is provided on the inner side of the mounting clamp (28); the mounting clamp (28) is connected to the cabinet box (11) by means of bolts; the exhaust fan (25) is electrically connected to the operation panel; and the end of the air supply pipe (24) away from the exhaust fan (25) sequentially penetrates the wall of the cabinet box (11) and the partition plate (16) and extends to the inner side of the cabinet box (11).
6. A pitch cabinet according to claim 1, characterized in that: The top of the base (31) is provided with a clearance groove for installing the mounting seat (12), and the bottom of the mounting seat (12) passes through the clearance groove and is installed on the top of the supporting bottom plate (41).
7. The pitch cabinet according to claim 1, characterized in that: One end of the sliding rod (34) is connected to a limiting ring (35), one end of the limiting ring (35) away from the sliding rod (34) is connected to a compression spring (36), and one end of the sliding rod (34) away from the limiting ring (35) is connected to an outer wall of the supporting base plate (41).
8. The pitch cabinet according to claim 1, characterized in that: Both ends of the spring shock absorber (43) are connected to mounting blocks (42), and the mounting blocks (42) at both ends of the spring shock absorber (43) are respectively connected to the bottom of the supporting bottom plate (41) and the inner wall of the lower bottom surface of the base seat (31), and the spring shock absorber (43) includes a damper.