Anti-vibration mechanism and screen cabinet for hydropower station

Abstract

The utility model discloses an anti-vibration mechanism and a screen cabinet for a hydropower station, and relates to the technical field of equipment vibration resistance, and the anti-vibration mechanism comprises a transverse vibration reduction unit which comprises a transverse vibration reduction cylinder, a transverse piston rod and a transverse vibration reduction spring; the longitudinal damping unit comprises a longitudinal damping cylinder, a longitudinal piston rod and a longitudinal damping spring; the terminal board fixing unit comprises a fixing seat, a connecting plug and a compression spring; and the screen cabinet unit comprises a screen cabinet shell, a screen cabinet door, a moisture-proof sound-absorbing plate, a terminal plate, a lighting belt and a temperature and humidity controller. The utility model has the beneficial effects that the transmission and continuity of transverse vibration caused by the operation of equipment can be isolated or reduced by additionally arranging the transverse vibration reduction unit, and the transmission and continuity of longitudinal vibration caused by the operation of the equipment can be isolated or reduced by additionally arranging the longitudinal vibration reduction unit, so that the stability of the operation of the equipment is improved; the damp-proof acoustic board can reduce vibration, the temperature and humidity controller can guarantee safe operation of equipment, and the device is more suitable for the hydropower station environment.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment anti-vibration, in particular to an anti-vibration mechanism and a screen cabinet for a hydropower station. Background Art

[0002] The panel cabinet is the power distribution cabinet, which is the final equipment of the power distribution system. It distributes the power of a circuit of the upper-level power distribution equipment to the nearest load. This level of equipment should provide protection, monitoring and control for the load. During use, due to the vibration of electrical equipment inside the panel cabinet, the movement of mechanical parts, electrical discharge, electromagnetic interference and air flow, continuous low-frequency noise will be generated, and the noise will cause continuous vibration, which may have a negative impact on the performance, safety and life of the equipment. Therefore, for the design of the panel cabinet, especially for the panel cabinet used in hydropower stations, since it is located in mountainous areas or near waters, vibration is always present and difficult to avoid. Measures should be taken to reduce the impact of low-frequency noise on the equipment.

[0003] In view of the above problems, an anti-vibration mechanism and a screen cabinet for a hydropower station are proposed to solve the above problems. Utility Model Content

[0004] Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the above-mentioned prior art problems, the present utility model is proposed.

[0006] The utility model aims to provide an anti-vibration mechanism, which aims to prevent or reduce the directional vibration caused by the operation of equipment.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: an anti-vibration mechanism, which includes a lateral vibration reduction unit, including a lateral vibration reduction cylinder, a lateral piston rod arranged inside the lateral vibration reduction cylinder, and a lateral vibration reduction spring connecting the lateral vibration reduction cylinder and the lateral piston rod;

[0008] A longitudinal vibration damping unit, comprising a longitudinal vibration damping cylinder, a longitudinal piston rod disposed inside the longitudinal vibration damping cylinder, and a longitudinal vibration damping spring connecting the longitudinal vibration damping cylinder and the longitudinal piston rod;

[0009] The terminal board fixing unit comprises a fixing seat, a plug connector matched with the fixing seat, and a compression spring connecting the fixing seat and the plug connector.

[0010] As a preferred solution of the anti-vibration mechanism of the utility model, wherein: a piston rod connecting hole is provided at the upper end of the transverse shock-absorbing cylinder, a transverse piston groove is provided connected to the piston rod connecting hole, transverse damping grooves are provided on both sides of the transverse piston groove, the diameter of the transverse damping groove is larger than that of the transverse piston groove, the transverse damping grooves are connected to form a transverse damping cavity through the lower transverse connecting groove, and the damping medium is inside the transverse damping cavity.

[0011] As a preferred solution of the anti-vibration mechanism of the utility model, the transverse piston rod is a symmetrical structure, with transverse sealing sliders at both ends, the transverse piston rod cooperates with the transverse piston groove, one end of the transverse damping spring is fixed to the side wall of the transverse damping groove, and the other end is connected to the transverse sealing slider.

[0012] As a preferred solution of the anti-vibration mechanism of the utility model, wherein: connecting rods are symmetrically arranged at both ends of the lower side of the longitudinal shock-absorbing cylinder, and the connecting rods are fixedly connected to the transverse piston rod.

[0013] As a preferred solution of the anti-vibration mechanism of the utility model, wherein: the longitudinal shock-absorbing cylinder is a left-right symmetrical structure, a support rod connecting hole is opened at the upper end thereof, a longitudinal piston groove is opened at the lower side of the support rod connecting hole, a longitudinal damping groove is opened at the front end of the longitudinal piston groove, the longitudinal piston groove is connected to the longitudinal damping groove through a connecting rod hole, and the longitudinal damping grooves of the symmetrical part are connected to form a longitudinal damping cavity through the lower longitudinal connecting groove, and the damping medium is inside the longitudinal damping cavity.

[0014] As a preferred solution of the anti-vibration mechanism of the utility model, wherein: the rear end of the longitudinal piston rod is a connecting slider, and the front end is a longitudinal sealing slider, the connecting slider cooperates with the longitudinal piston groove, the longitudinal sealing slider cooperates with the longitudinal damping groove, one end of the longitudinal vibration damping spring is fixed to the side wall of the longitudinal damping groove, and the other end is connected to the longitudinal sealing slider.

[0015] As a preferred solution of the anti-vibration mechanism of the utility model, the fixing seat is a cylindrical barrel with a plug hole at the front end, and the diameter of the plug hole is smaller than the diameter of the cavity in the fixing seat.

[0016] As a preferred solution of the anti-vibration mechanism of the utility model, wherein: the front end of the plug connector is a connector, the diameter of the plug connector is smaller than the diameter of the plug hole, the diameter of the connector is larger than the diameter of the plug hole and smaller than the diameter of the cavity inside the fixed base, one end of the compression spring is fixed to the inner wall of the fixed base, and the other end is connected to the connector.

[0017] The beneficial effects of the anti-vibration mechanism of the utility model are as follows: by adding a lateral vibration reduction unit, the transmission and continuation of lateral vibration caused by equipment operation can be isolated or reduced; by adding a longitudinal vibration reduction unit, the transmission and continuation of longitudinal vibration caused by equipment operation can be isolated or reduced, thereby increasing the stability of equipment operation.

[0018] Another object of the utility model is to provide a screen cabinet for a hydropower station, which aims to provide a screen cabinet suitable for use in a humid environment and an environment with more equipment vibration in a hydropower station.

[0019] In order to solve the above technical problems, the utility model also provides the following technical solutions: a screen cabinet for a hydropower station, which includes an anti-vibration mechanism; and a screen cabinet unit, including a screen cabinet shell, a screen cabinet door is provided at the front end of the screen cabinet shell, a moisture-proof sound-absorbing panel is provided on the inside of the screen cabinet shell, a terminal board is provided at the rear end, a lighting strip is provided at the front end, and a temperature and humidity controller is provided at the lower end.

[0020] As a preferred solution of the utility model for a screen cabinet for a hydropower station, the lateral vibration damping unit and the longitudinal vibration damping unit are arranged at the lower end of the inner side of the screen cabinet shell, a support rod is arranged at the lower end of the terminal board, the support rod is connected to the longitudinal piston rod, and the plug connector is fixedly arranged at the rear end of the screen cabinet shell.

[0021] The valve seat bracket of the utility model has the following beneficial effects: by adding an anti-vibration mechanism, the stability of the equipment operation can be ensured, the moisture-proof sound-absorbing panel can reduce the generation of vibration, and the temperature and humidity controller can ensure the safe operation of the equipment, and is more suitable for the environment of a hydropower station. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0023] Figure 1 It is an overall schematic diagram of the screen cabinet for a hydropower station in the utility model.

[0024] Figure 2 It is an overall schematic diagram of the anti-vibration mechanism in the utility model.

[0025] Figure 3 It is an exploded schematic diagram of the anti-vibration mechanism in the utility model.

[0026] Figure 4 It is a cross-sectional view of the lateral vibration reduction unit in the present utility model.

[0027] Figure 5 This is a flow diagram of the damping medium of the lateral vibration reduction unit in the utility model.

[0028] Figure 6 It is a cross-sectional view of the longitudinal vibration reduction unit in the present utility model.

[0029] Figure 7 This is a flow diagram of the damping medium of the longitudinal vibration reduction unit in the utility model.

[0030] Figure 8 It is a cross-sectional view of the terminal board fixing unit in the present utility model. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1

[0035] Reference Figure 2 to Figure 7 , which is the first embodiment of the utility model, and provides a vibration-proof mechanism, including a lateral vibration-damping unit 100, including a lateral vibration-damping cylinder 101, a lateral piston rod 102 disposed inside the lateral vibration-damping cylinder 101, and a lateral vibration-damping spring 103 connecting the lateral vibration-damping cylinder 101 and the lateral piston rod 102;

[0036] The longitudinal vibration damping unit 200 includes a longitudinal vibration damping cylinder 201 , a longitudinal piston rod 202 disposed inside the longitudinal vibration damping cylinder 201 , and a longitudinal vibration damping spring 203 connecting the longitudinal vibration damping cylinder 201 and the longitudinal piston rod 202 .

[0037] Furthermore, a piston rod connecting hole 101a is provided at the upper end of the transverse shock absorber cylinder 101, and a transverse piston groove 101b is provided connected to the piston rod connecting hole 101a. Transverse damping grooves 101c are provided on both sides of the transverse piston groove 101b. The diameter of the transverse damping groove 101c is larger than that of the transverse piston groove 101b. The transverse damping groove 101c is connected to a transverse damping cavity A through a lower transverse connecting groove 101d, and the damping medium is inside the transverse damping cavity A.

[0038] Furthermore, the transverse piston rod 102 is a symmetrical structure, with transverse sealing sliders 102a at both ends. The transverse piston rod 102 cooperates with the transverse piston groove 101b, and one end of the transverse damping spring 103 is fixed to the side wall of the transverse damping groove 101c and the other end is connected to the transverse sealing slider 102a.

[0039] Furthermore, connecting rods 201 a are symmetrically arranged at both ends of the lower side of the longitudinal shock-absorbing cylinder 201 , and the connecting rods 201 a are fixedly connected to the transverse piston rod 102 .

[0040] It should be noted that the connecting rods 201a symmetrically arranged on the lower side of the longitudinal shock-absorbing cylinder 201 move synchronously.

[0041] Furthermore, the longitudinal shock-absorbing cylinder 201 is a left-right symmetrical structure, with a support rod connecting hole 201b provided at its upper end, a longitudinal piston groove 201c provided at the lower side of the support rod connecting hole 201b, a longitudinal damping groove 201d provided at the front end of the longitudinal piston groove 201c, the longitudinal piston groove 201c is connected to the longitudinal damping groove 201d through a connecting rod hole 201e, and the longitudinal damping groove 201d of the symmetrical part is connected to form a longitudinal damping cavity B through the lower longitudinal connecting groove 201f, which contains a damping medium.

[0042] Furthermore, the rear end of the longitudinal piston rod 202 is a connecting slider 202a, and the front end is a longitudinal sealing slider 202b. The connecting slider 202a cooperates with the longitudinal piston groove 201c, and the longitudinal sealing slider 202b cooperates with the longitudinal damping groove 201d. One end of the longitudinal damping spring 203 is fixed to the side wall of the longitudinal damping groove 201d, and the other end is connected to the longitudinal sealing slider 202b.

[0043] It should be noted that the longitudinal piston rods 202 are symmetrically arranged along the longitudinal shock-absorbing cylinder 201, and the left and right longitudinal piston rods 202 move together and remain consistent.

[0044] During use, when encountering lateral vibration, the lateral piston rod 102 moves along with the vibration, and drives the damping medium in the lateral damping cavity A, and blocks the movement of the lateral piston rod 102 through the lateral vibration-damping spring 103, reduces the amplitude, consumes the vibration energy through the damping medium, and eliminates the lateral vibration; when encountering longitudinal vibration, the longitudinal piston rod 202 moves along with the vibration, and drives the damping medium in the longitudinal damping cavity B, and blocks the movement of the longitudinal piston rod 202 through the longitudinal vibration-damping spring 203, reduces the amplitude, consumes the vibration energy through the damping medium, and eliminates the longitudinal vibration.

[0045] In summary, by adding a lateral vibration damping unit 100, the transmission and continuation of lateral vibration caused by equipment operation can be isolated or reduced. By adding a longitudinal vibration damping unit 200, the transmission and continuation of longitudinal vibration caused by equipment operation can be isolated or reduced, thereby increasing the stability of equipment operation.

[0046] Example 2

[0047] Reference Figure 2 to Figure 8 , which is the second embodiment of the utility model, based on the previous embodiment, this embodiment provides a vibration-proof mechanism, including a lateral vibration-damping unit 100, including a lateral vibration-damping cylinder 101, a lateral piston rod 102 arranged inside the lateral vibration-damping cylinder 101, and a lateral vibration-damping spring 103 connecting the lateral vibration-damping cylinder 101 and the lateral piston rod 102;

[0048] The longitudinal vibration damping unit 200 includes a longitudinal vibration damping cylinder 201, a longitudinal piston rod 202 disposed inside the longitudinal vibration damping cylinder 201, and a longitudinal vibration damping spring 203 connecting the longitudinal vibration damping cylinder 201 and the longitudinal piston rod 202;

[0049] The terminal board fixing unit 300 includes a fixing seat 301 , a plug connector 302 matched with the fixing seat 301 , and a compression spring 303 connecting the fixing seat 301 and the plug connector 302 .

[0050] Furthermore, the fixing seat 301 is a cylindrical body, and a plug hole 301 a is opened at the front end thereof. The diameter of the plug hole 301 a is smaller than the diameter of the cavity inside the fixing seat 301 .

[0051] Furthermore, the front end of the plug connector 302 is a connector 302a, the diameter of the plug connector 302 is smaller than the diameter of the plug hole 301a, the diameter of the connector 302a is larger than the diameter of the plug hole 301a and smaller than the diameter of the cavity inside the fixing seat 301, one end of the compression spring 303 is fixed to the inner wall of the fixing seat 301, and the other end is connected to the connector 302a.

[0052] When in use, the plug connector 302 is fixed to the inner wall of the fixing seat 301 under the action of the compression spring 303. When vibration is sensed, the connector 302a can move within a certain range in the fixing seat 301, and cooperate with the lateral vibration reduction unit 100 and the longitudinal vibration reduction unit 200 to weaken and eliminate the vibration, and finally return to its original position under the action of the compression spring 303.

[0053] In summary, this design, with the cooperation of the plug connector 302 and the fixing seat 301, allows the structures to be connected while leaving space to respond to vibration and restore stability.

[0054] Example 3

[0055] Reference Figure 1-2 , which is the third embodiment of the utility model, based on the above embodiment, this embodiment further provides a screen cabinet for a hydropower station. It includes a screen cabinet unit 400, including a screen cabinet housing 401, a screen cabinet door 402 is arranged at the front end of the screen cabinet housing 401, a moisture-proof sound-absorbing board 403 is arranged inside the screen cabinet housing 401, a terminal board 404 is arranged at the rear end, a lighting strip 405 is arranged at the front end, and a temperature and humidity controller 406 is arranged at the lower end.

[0056] It should be noted that the temperature and humidity controller 406 adopts the temperature and humidity controller WHD20R-11.

[0057] Furthermore, the lateral vibration damping unit 100 and the longitudinal vibration damping unit 200 are arranged at the lower end of the inner side of the screen cabinet shell 401, a support rod 404a is arranged at the lower end of the terminal board 404, the support rod 404a is connected to the longitudinal piston rod 202, and a plug connector 302 is fixedly arranged at the rear end of the screen cabinet shell 401.

[0058] In summary, the installation of anti-vibration mechanisms can ensure the stability of equipment operation, moisture-proof sound-absorbing panels can reduce the generation of vibration, and temperature and humidity controllers can ensure the safe operation of equipment, which is more suitable for hydropower station environments.

[0059] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0060] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0061] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A vibration-proof mechanism, characterized in that: include, A lateral vibration damping unit (100) comprises a lateral vibration damping cylinder (101), a lateral piston rod (102) arranged inside the lateral vibration damping cylinder (101), and a lateral vibration damping spring (103) connecting the lateral vibration damping cylinder (101) and the lateral piston rod (102); A longitudinal vibration damping unit (200), comprising a longitudinal vibration damping cylinder (201), a longitudinal piston rod (202) arranged inside the longitudinal vibration damping cylinder (201), and a longitudinal vibration damping spring (203) connecting the longitudinal vibration damping cylinder (201) and the longitudinal piston rod (202); A terminal board fixing unit (300) comprises a fixing seat (301), a plug connector (302) matched with the fixing seat (301), and a compression spring (303) connecting the fixing seat (301) and the plug connector (302).

2. The vibration-proof mechanism according to claim 1, wherein: A piston rod connecting hole (101a) is provided at the upper end of the transverse shock-absorbing cylinder (101), and a transverse piston groove (101b) is provided in connection with the piston rod connecting hole (101a). Transverse damping grooves (101c) are provided on both sides of the transverse piston groove (101b), and the diameter of the transverse damping groove (101c) is larger than that of the transverse piston groove (101b). The transverse damping groove (101c) is connected to form a transverse damping cavity (A) through a lower transverse connecting groove (101d), and a damping medium is contained in the transverse damping cavity.

3. The vibration-proof mechanism according to claim 2, wherein: The transverse piston rod (102) is a symmetrical structure, with transverse sealing sliders (102a) at both ends. The transverse piston rod (102) cooperates with the transverse piston groove (101b), and one end of the transverse damping spring (103) is fixed to the side wall of the transverse damping groove (101c), and the other end is connected to the transverse sealing slider (102a).

4. The vibration-proof mechanism according to claim 3, characterized in that: Connecting rods (201a) are symmetrically arranged at both ends of the lower side of the longitudinal shock-absorbing cylinder (201), and the connecting rods (201a) are fixedly connected to the transverse piston rod (102).

5. The vibration-proof mechanism according to claim 4, characterized in that: The longitudinal shock-absorbing cylinder (201) is a bilaterally symmetrical structure, with a support rod connecting hole (201b) provided at the upper end thereof, a longitudinal piston groove (201c) provided at the lower side of the support rod connecting hole (201b), a longitudinal damping groove (201d) provided at the front end of the longitudinal piston groove (201c), the longitudinal piston groove (201c) and the longitudinal damping groove (201d) being connected via a connecting rod hole (201e), and the longitudinal damping groove (201d) of the symmetrical part being connected via a lower longitudinal connecting groove (201f) to form a longitudinal damping cavity (B), which contains a damping medium.

6. The vibration-proof mechanism according to claim 5, characterized in that: The rear end of the longitudinal piston rod (202) is a connecting slider (202a), and the front end is a longitudinal sealing slider (202b); the connecting slider (202a) cooperates with the longitudinal piston groove (201c); the longitudinal sealing slider (202b) cooperates with the longitudinal damping groove (201d); one end of the longitudinal damping spring (203) is fixed to the side wall of the longitudinal damping groove (201d), and the other end is connected to the longitudinal sealing slider (202b).

7. The vibration-proof mechanism according to claim 6, wherein: The fixing seat (301) is a cylindrical barrel, and a plug hole (301a) is provided at the front end thereof. The diameter of the plug hole (301a) is smaller than the diameter of the cavity inside the fixing seat (301).

8. The vibration-proof mechanism according to claim 7, wherein: The front end of the plug connector (302) is a connector (302a), the diameter of the plug connector (302) is smaller than the diameter of the plug hole (301a), the diameter of the connector (302a) is larger than the diameter of the plug hole (301a) and smaller than the diameter of the inner cavity of the fixing seat (301), one end of the compression spring (303) is fixed to the inner wall of the fixing seat (301), and the other end is connected to the connector (302a).

9. A screen cabinet for a hydropower station, characterized in that: It comprises an anti-vibration mechanism as described in any one of claims 1 to 8; and a screen cabinet unit (400), comprising a screen cabinet shell (401), a screen cabinet door (402) being provided at the front end of the screen cabinet shell (401), a moisture-proof sound-absorbing panel (403) being provided on the inner side of the screen cabinet shell (401), a terminal board (404) being provided at the rear end, a lighting strip (405) being provided at the front end, and a temperature and humidity controller (406) being provided at the lower end.

10. The screen cabinet for a hydropower station as claimed in claim 9, characterized in that: The lateral vibration damping unit (100) and the longitudinal vibration damping unit (200) are arranged at the lower end of the inner side of the screen cabinet shell (401), a support rod (404a) is arranged at the lower end of the terminal board (404), the support rod (404a) is connected to the longitudinal piston rod (202), and the plug connector (302) is fixedly arranged at the rear end of the screen cabinet shell (401).

Images